DOCSLIB.ORG

Dispersants for Plastics Product Guide

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

PERFORMANCE COATINGS THERMOPLASTICS & THERMOSETS DISPERSANTS PRODUCT GUIDE FOR PLASTICS HYPERDISPERSANTS FOR THERMOPLASTICS AND THERMOSETS Solplus™ and Solsperse™ hyperdispersants and coupling agents have been developed to meet the needs of the plastic industry, for both thermoplastic and thermoset polymers, as well as polyurethanes. THERMOPLASTIC MASTERBATCH AND COMPOUNDING Solplus™ DP310 hyperdispersant is recommended for the dispersion of organic and inorganic pigments and fillers in thermoplastic masterbatch and compound applications. It can be used in a variety of thermoplastic polymers including polyethylene, polypropylene, polystyrene, ABS and PVC. MORE EFFICIENT DISPERSION Increased Higher Increased Less filter Upgraded productivity pigment/filler color blockage/ performance loadings strength fiber breakage of lower cost systems COST SAVINGS IMPROVED QUALITY Stronger, Less Improved Improved Improved Meets new brighter specks mechanical stability flame environmental colors properties retardancy standards 2 PLASTICIZER AND POLYOL DISPERSIONS The recommended Solplus™ hyperdispersant for the production of plasticizer and polyol dispersions is dependent upon the pigment: Solplus™ K500 Inorganic pigments and fillers Solplus™ DP700 Inorganic pigment fillers and carbon black Solplus™ K200 Organic pigment (phthalate free dispersions) Solplus™ K210 Organic pigments (phthalate based dispersions) Solplus™ R700 Organic pigments THERMOSET/COMPOSITE APPLICATIONS (polyether polyols) Solplus™ R710 Organic pigments Engineered specifically for composite fillers (polyether polyols) and resins—and based on proprietary polymer chemistry—Solplus™ additives offer major process advantages to the thermoset industry, including the combination of dispersing/wetting and anti-settling BENEFITS benefits in a single additive. In both phthalate and non-phthalate plasticizer From being 100% active and solvent free, systems and in polyether and polyester polyols for Solplus™ hyperdispersants also help to reduce conversion to polyurethanes, Solplus hyperdispersants environmental impact from the styrene content improve dispersion of: levels that characterize most unsaturated • Organic and inorganic pigments polyester based systems. • Fillers Solplus™ dispersants have been developed to • Flame retardants improve dispersion of fillers, flame retardants and • Stabilizers reinforcements (fibers) in thermoset systems, as well • Blowing agents as for organic and inorganic pigments in gel coats. As a result, manufacturers achieve: • Higher solids loadings/increased BENEFITS pigment concentration • Higher filler/flame retardant loadings • Reduced viscosities (more Newtonian rheology) • Decreased viscosities • Improved color strength development • Anti-settling • Better dispersion of color in • Improved stability finished polymer • Improved color to white compatibility • Cost reductions • Improved processing (increased productivity and fewer passes on the mill) 3 HYPERDISPERSANTS AND COUPLING AGENTS FOR THERMOPLASTICS AND THERMOSETS INFLUENCE OF MEDIA COMPATIBILITY ON PRODUCT SELECTION For a Solsperse™ or Solplus™ hyperdispersant to be effective in specific applications, it must be compatible with the media in which the solid is being dispersed AND have an affinity with the surface of the material itself. These are the main criteria used in product selection. The main grades offered for a range of plastics applications are mapped out below: Unsaturated Polyesters and Gel Coats Heat Masterbatch and Compound Ambient ES F100* Engineering Plastics IT S TH PO E R M M O F100* R700 /C O S P T R710 L E DP310 A S S PVC Acrylic T O I D545 DP310 C M F100* S R D540 E D570 H D542 T D520 DP310 Liquid Colors DP700 Epoxy F100* D540 for Plastics K240/K241 D510 K251 D560 D610 D570 organic pigment inorganics and fillers K500 R720 K500 DP700 K210 P D580 Polyester L Phthalate Polyol R710 A Based K220 S T I C I Z E S R L O K200 D Y I L R700 S P O E P R S I O N S Polyether Non-Phthalate Polyol *Solplus™ F100 is an air-release agent that is designed for rapid air-release and effective wetting in thermoset systems. With certain organic pigment dispersions it may be advantageous to include the use of a Solsperse™ synergist in combination with the polymeric Solplus™ or Solsperse™ hyperdispersant. 4 FORMULATING GUIDELINES DOSAGE – PLASTIC APPLICATIONS MASTERBATCH/COMPOUND METHOD OF USE/ORDER OF ADDITION – PLASTIC APPLICATIONS To determine the optimum dosage for masterbatch or compound applications, a “ladder series” MASTERBATCH/COMPOUND should be carried out. 1. Charge polymer to pre-blending equipment. 2. Add Solplus™ or Solsperse™ agent and blend thoroughly with the polymer to coat the surface of the polymer. PLASTICIZERS AND GEL COATS 3. Add pigments, fillers, processing aids and other For many plasticizer and polyester gel coat essential ingredients and continue pre-blending. applications, it has been established that the 4. Process the resultant blend in normal manner theoretical dosage level of the appropriate (extrusion, internal mixer, 2-roll mill, etc.). Solplus™ or Solsperse™ hyperdispersant in a pigment dispersion equates to 2 mg of Solplus™ It is essential to follow this order of addition or Solsperse™ polymeric hyperdispersant/square carefully since it allows for maximum distribution ™ ™ meter of pigment surface area. of the Solplus or Solsperse additive and produces This can be expressed as % Agent On the Weight intimate contact between the hyperdispersant of Pigment (% AOWP ). and the polymer. This intimate contact gives the best results. pigment surface area (m2/g) % AOWP = PLASTICIZERS, GEL COATS AND 5 THERMOSET COMPOSITES 1. Dissolve the appropriate Solsperse™ or Solplus™ hyperdispersant in the THERMOSET COMPOSITES millbase plasticizer or resin. 2. If required, add a synergist and distribute For thermoset composite applications, testing has evenly with stirring (note: the synergist confirmed a loading of between 0.5% and 2% of the is virtually insoluble). appropriate Solplus™ hyperdispersant on the weight 3. Add the pigment or filler in stages and of filler is effective. disperse in normal manner. Minor adjustments may, however, be required depending on the specific grade of filler used. 5 HYPERDISPERSANTS FOR THERMOPLASTICS AND THERMOSETS – PRODUCT LIST PRODUCT PHYSICAL PACKAGE % ACTIVE SOLVENT/ SUITABLE NAME DESCRIPTION SIZE (kg) CONTENT CARRIER APPLICATION(S) Thermoset composites, Solplus™ D510 Yellow viscous liquid D20/D180 100 – pigmented gel coats Straw colored Solplus™ D520 P25/P200 100 – Thermoset composites viscous liquid Pale amber to brown Solplus™ D540 P20/P200 100 – Thermoset composites viscous liquid Solplus™ D541 Amber liquid D25, D180 100 – Thermoset composites Pale amber to brown Solplus™ D545 P25, P200, I1000 100 Thermoset composites viscous liquid Solplus™ D560 Pale yellow liquid P20/P180 100 – Thermoset composites Colorless to brown Solplus™ D570 P25, P200 100 Thermoset composites viscous liquid Solplus™ D610 Yellow viscous liquid P20, D180 100 – Thermoset composites and gelcoats, polyester polyols Solplus™ DP310* Off white powder B825 100 – Masterbatch/compounding Solplus™ DP700 Brown liquid D20, D180, I750 100 – Plasticizers White to off-white Hydrocarbon Solplus™ ES1000 D20, D160 10 Thermoset composites (styrene suppressant) liquid carrier Pale yellow to brown DOA Plasticizers and liquid colors Solplus™ K200* D20/D180 50 viscous liquid (Dioctyladipate) for plastics Pale yellow to brown DINP Plasticizers and liquid colors Solplus™ K210 D20/D180 50 viscous liquid (Diisononylphthalate) for plastics Amber to brown Solplus™ K220 D20/D180/I940 100 – Plasticizer and liquid colors for TP and PVC viscous liquid Pale yellow to brown Solplus™ K240* D20, D150 100 Liquid colors for plastics viscous liquid 6 PRODUCT PHYSICAL PACKAGE % ACTIVE SOLVENT/ SUITABLE NAME DESCRIPTION SIZE (kg) CONTENT CARRIER APPLICATION(S) Pale yellow to brown FDA compliant Solplus™ K241* D20, D150 50 Liquid colors for plastics viscous liquid natural oil Pale yellow to brown FDA compliant Solplus™ K251* D20, D150 50 Liquid colors for plastics viscous liquid natural oil Pale yellow to brown Solplus™ K500 D20/D180/I900 100 – Plasticizers viscous liquid Solplus™ R700 Yellow viscous liquid D20/D180 100 – Polyether or polyester polyols Pale to dark amber Solplus™ R710 D20, D180 100 Polyether or polyester polyols liquid Solplus™ R720 Amber liquid D25/D190/I1000 100 – Polyether or polyester polyol Pale yellow to Solplus™ R730 D25/D180/I1000 100 – Polyether or polyester polyol amber viscous liquid Solplus™ TX5 Pale yellow liquid D25, D200 40 MPA Thermoset composites (silica replacement) Waxy paste/ Solsperse™ 3000* D20/D170 100 – Plasticizers viscous liquid Solsperse™ 5000S Blue powder B15 100 – Synergist Solsperse™ 11000* Amber liquid D20/D180 50 Mineral oil Plasticizers and liquid colors for plastics Solsperse™ 12000S Blue powder B25 100 – Synergist Diundecyl- Solsperse™ 13650 Amber liquid D20/D150 50 Plasticizers phthalate Waxy paste/ Solsperse™ 21000* D20/D170 100 – MBX/compound viscous liquid Solsperse™ 22000 Yellow powder B20 100 – Synergist KEY: Packaging: B = box, D = drum, I = IBC, P = plastic drum *Approved for food contact. Some limitations apply. Please consult your regional Lubrizol sales office. 7 NORTH AMERICA Lubrizol Advanced Materials, Inc. 9911 Brecksville Road ™ Brecksville, OH 44141 USA WHAT WE ADD MAKES THE DIFFERENCE. +1.800.380.5397 Lubrizol is a market-driven innovator of specialty chemicals that solve EUROPE Lubrizol Deutschland GmbH today’s challenges in the paints
Recommended publications
  • II. Plasticizer-Free Polyvinyl Chloride, Plasticizer-Free Copolymers of Vinyl

    II. Plasticizer-Free Polyvinyl Chloride, Plasticizer-Free Copolymers of Vinyl

    This is an unofficial translation. Only the German version is binding. II. Plasticizer-free Polyvinyl Chloride, Plasticizer-free Copolymers of Vinyl Chlo- ride and Mixtures of these Polymers with other Copolymers and Chlorinated Polyolefins Containing Mainly Vinyl Chloride in the Total Mixture As of 01.01.2012 The monomers and other starting substances as well as additives used in the production of plasticizer-free polyvinyl chloride, plasticizer-free copolymers of vinyl chloride containing mainly vinyl chloride, mixtures of these polymers with other copolymers, and chlorinated polyolefins containing mainly vinyl chloride in the total mixture are subject to the requirements of the Commission Regulation (EU) No 10/2011. Otherwise, there are no objections to the use of these plastics for commodities in the sense of § 2, Para. 6, No 1 of the Food and Feed Code (Lebensmittel- und Futtermittelgesetzbuch), pro- vided they are suitable for their intended purpose and comply with the following conditions: 1. The use of monomers and other starting materials for polyethylene is subject to the stipula- tions of the Commission Regulation (EU) No 10/2011. The evaluation presented in the following refers to polymers from the following monomeric starting substances: a) Vinyl chloride b) Vinylidene chloride c) Trans-dichloroethylene d) Vinylesters of aliphatic carbonic acids C2-C18, in so far as covered by the positive list of the Commission Regulation (EU) No 10/2011 e) Esters of acrylic acid, methacrylic acid and/or maleic acid or fumaric acid with
  • Polychlorinated Biphenyls, Phthalates, and Bisphenol a and Gynecologic Cancers- Cervical, Ovarian, Uterine Cancers Marisa Morgan

    Polychlorinated Biphenyls, Phthalates, and Bisphenol a and Gynecologic Cancers- Cervical, Ovarian, Uterine Cancers Marisa Morgan

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DigitalCommons@Florida International University Florida International University FIU Digital Commons Robert Stempel College of Public Health & Social Environmental Health Sciences Work 10-31-2016 Association between Exposure to Estrogenic Endocrine Disruptors - Polychlorinated Biphenyls, Phthalates, and Bisphenol A and Gynecologic Cancers- Cervical, Ovarian, Uterine Cancers Marisa Morgan Alok Deoraj Department of Environmental and Occupational Health, Florida International University, [email protected] Quentin Felty Department of Environmental & Occupational Health, Florida International University, [email protected] Changwon Yoo Department of Biostatistics, Florida International University, [email protected] Deodutta Roy Department of Environmental and Occupational Health, Florida International University, [email protected] Follow this and additional works at: https://digitalcommons.fiu.edu/eoh_fac Part of the Medicine and Health Sciences Commons Recommended Citation Morgan M, Deoraj A, Felty Q, Yoo C, Roy D (2016) Association between Exposure to Estrogenic Endocrine Disruptors - Polychlorinated Biphenyls, Phthalates, and Bisphenol A and Gynecologic Cancers- Cervical, Ovarian, Uterine Cancers. J Carciong Mutagen 7: 275. doi: 10.4172/2157-2518.1000275 This work is brought to you for free and open access by the Robert Stempel College of Public Health & Social Work at FIU Digital Commons. It has been accepted for inclusion in Environmental Health Sciences by an
  • Flame Retardant Nylon Moulding Resins with Improved Physical Properties

    Flame Retardant Nylon Moulding Resins with Improved Physical Properties

    Europaisches Patentamt J European Patent Office CO Publication number: 0418210A1 Office europeen des brevets EUROPEAN PATENT APPLICATION © Application number: 90870144.4 © int. CIA C08K 5/00, C08L 77/00, //(C08K5/00,5:1 2,5:3492) © Date of filing: 12.09.90 © Priority: 15.09.89 US 407464 © Applicant: MONSANTO COMPANY Patent Department 800 North Lindbergh © Date of publication of application: Boulevard 20.03.91 Bulletin 91/12 St. Louis, Missouri 63167(US) © Designated Contracting States: @ Inventor: Jenkins, George H. AT BE CH DE DK ES FR GB GR IT LI LU NL SE Deceased(US) Inventor: Sprenkle, William Edward, Jr. 149 Woodlawn Street Springfield, Massachusetts 01108(US) © Representative: Ernst, Hubert et al Monsanto Services International S.A., Patent Department, Avenue de Tervuren 270-272, Letter Box No. 21 B-1150 Brussels(BE) © Flame retardant nylon moulding resins with improved physical properties. © A flame retardant nylon molding resin with improved physical properties comprising a nylon resin, melamine cyanurate flame retardant and either diundecyl phthalate or dioctyl phthalate as a wetting agent. 00 Q. HI Xerox Copy Centre EP 0 418 210 A1 FLAME RETARDANT NYLON MOLDING RESINS WITH IMPROVED PHYSICAL PROPERTIES Background of the Invention: The present invention relates to flame retardant polyamide molding resins with improved physical properties. More particularly, it relates to a polyamide molding resin containing a melamine cyanurate flame 5 retardant and an alkyl phthalate compatabilizer or wetting agent. Melamine and other triazines and certain salts of said compounds are known to function as flame retardants when melt blended in polyamides at from above 5% by weight to about 20% by weight.
  • Using an Inhibitor to Prevent Plasticizer Migration from Polyurethane Matrix to EPDM Based Substrate Rezaei-Vahidian Hadi, Farajpour Tohid, Abdollahi Mahdi

    Using an Inhibitor to Prevent Plasticizer Migration from Polyurethane Matrix to EPDM Based Substrate Rezaei-Vahidian Hadi, Farajpour Tohid, Abdollahi Mahdi

    Using an Inhibitor to Prevent Plasticizer Migration from Polyurethane Matrix to EPDM Based Substrate Rezaei-Vahidian Hadi, Farajpour Tohid, Abdollahi Mahdi Cite this article as: Rezaei-Vahidian Hadi, Farajpour Tohid, Abdollahi Mahdi. Using an Inhibitor to Prevent Plasticizer Migration from Polyurethane Matrix to EPDM Based Substrate[J]. Chinese J. Polym. Sci, 2019, 37(7): 681-686. doi: 10.1007/s10118-019-2251-y View online: https://doi.org/10.1007/s10118-019-2251-y Articles you may be interested in Antistatic PVC-graphene Composite through Plasticizer-mediated Exfoliation of Graphite Chinese J. Polym. Sci. 2018, 36(12): 1361 https://doi.org/10.1007/s10118-018-2160-5 SYNTHESIS OF POLYURETHANE MODIFIED BISMALEIMIDE (UBMI) AND POLYURETHANE-IMIDE ELASTOMER Chinese J. Polym. Sci. 2008, 26(1): 117 Synthesis and Properties of Reversible Disulfide Bond-based Self-healing Polyurethane with Triple Shape Memory Properties Chinese J. Polym. Sci. 2019, 37(11): 1119 https://doi.org/10.1007/s10118-019-2268-2 增塑剂对碱木质素/HDPE复合材料性能影响研究 The Effect of Plasticizer on the Properties of Alkali Lignin/HDPE Composites 高分子学报. 2014(2): 210 https://doi.org/10.3724/SP.J.1105.2014.13204 泊肃叶流中环形高分子的迁移行为及与线性高分子的差异 Migration of Ring Polymers in Poiseuille Flow and Comparison with Linear Polymers 高分子学报. 2019, 50(11): 1229 https://doi.org/10.11777/j.issn1000-3304.2019.19074 聚醚硅油表面迁移行为对聚苯乙烯表面极性的影响 THE IMPROVEMENT OF POLARITY OF POLYSTYRENE SURFACE BY THE SELECTIVE SURFACE MIGRATION OF POLYETHER SILICOME OIL 高分子学报. 2007(2): 165 Chinese Journal of POLYMER SCIENCE ARTICLE https://doi.org/10.1007/s10118-019-2251-y
  • Recent Attempts in the Design of Efficient PVC Plasticizers With

    Recent Attempts in the Design of Efficient PVC Plasticizers With

    materials Review Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration Joanna Czogała 1,2,3,* , Ewa Pankalla 2 and Roman Turczyn 1,* 1 Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland 2 Research and Innovation Department, Grupa Azoty Zakłady Azotowe K˛edzierzynS.A., Mostowa 30A, 47-220 K˛edzierzyn-Ko´zle,Poland; [email protected] 3 Joint Doctoral School, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland * Correspondence: [email protected] (J.C.); [email protected] (R.T.) Abstract: This paper reviews the current trends in replacing commonly used plasticizers in poly(vinyl chloride), PVC, formulations by new compounds with reduced migration, leading to the enhance- ment in mechanical properties and better plasticizing efficiency. Novel plasticizers have been divided into three groups depending on the replacement strategy, i.e., total replacement, partial replacement, and internal plasticizers. Chemical and physical properties of PVC formulations containing a wide range of plasticizers have been compared, allowing observance of the improvements in polymer per- formance in comparison to PVC plasticized with conventionally applied bis(2-ethylhexyl) phthalate, di-n-octyl phthalate, bis(2-ethylhexyl) terephthalate and di-n-octyl terephthalate. Among a variety of newly developed plasticizers, we have indicated those presenting excellent migration resistance and advantageous mechanical properties, as well as those derived from natural sources. A separate chapter has been dedicated to the description of a synergistic effect of a mixture of two plasticizers, primary and secondary, that benefits in migration suppression when secondary plasticizer is added to PVC blend.
  • Test Method: CPSC-CH-C1001-09.2

    Test Method: CPSC-CH-C1001-09.2

    Statement of Policy: Testing of Component Parts With Respect To Section 108 of the Consumer Product Safety Improvement Act A. Background The Consumer Product Safety Improvement Act (CPSIA) was enacted on August 14, 2008 (Pub. L. 110-314). Section 108 of the CPSIA permanently prohibits the sale of any “children’s toy or child care article” containing concentrations of more than 0.1 percent of three specified phthalates.1, 2 Section 108 also prohibits, on an interim basis, the sale of “any children’s toy that can be placed in a child’s mouth or child care article” containing concentrations of more than 0.1 percent of three additional phthalates pending the recommendation of a Chronic Hazard Advisory Panel (CHAP).3, 4 The CHAP will recommend to the Commission whether to make the interim ban permanent and whether other phthalates or phthalate alternatives should be declared banned hazardous substances. The terms “children’s toy,” “children’s toy that can be placed in a child’s mouth,” and “child care article” are defined in section 108 of the CPSIA. These prohibitions became effective on February 10, 2009. To gather comments and information about implementation of this section of the CPSIA, the Commission published a “Notice of Availability of Draft Guidance Regarding Which Children’s Products are Subject to the Requirements of CPSIA section 108; Request for Comments and Information,” on February 23, 2009 (74 FR 8058). Comments in response to the Notice demonstrate that many questions and concerns exist about the requirement that products comply with the phthalates limits of section 108 of the CPSIA and, specifically, the testing procedures used to determine the percentage of phthalates in such products.
  • A Relevant Screening of Organic Contaminants Present on Freshwater and Pre-Production Microplastics

    A Relevant Screening of Organic Contaminants Present on Freshwater and Pre-Production Microplastics

    toxics Article A Relevant Screening of Organic Contaminants Present on Freshwater and Pre-Production Microplastics Claudia Campanale 1,* , Georg Dierkes 2, Carmine Massarelli 1 , Giuseppe Bagnuolo 1 and Vito Felice Uricchio 1 1 National Research Council, Water Research Institute (CNR-IRSA), 70125 Bari, Italy; [email protected] (C.M.); [email protected] (G.B.); [email protected] (V.F.U.) 2 German Federal Institute of Hydrology (BfG), 56068 Koblenz, Germany; [email protected] * Correspondence: [email protected] Received: 6 October 2020; Accepted: 4 November 2020; Published: 9 November 2020 Abstract: Microplastics (MPs) have recently been discovered as considerable pollutants of all environmental matrices. They can contain a blend of chemicals, some of them added during the manufacture of plastic to improve their quality (additives) and others adsorbed from the surrounding environment. In light of this, a detailed study about the identification and quantification of target organic pollutants and qualitative screening of non-target compounds present on MPs was carried out in different types of samples: environmental MPs, collected from an Italian river, and pre-production MPs, taken from the plastic industry. Polychlorobiphenyls (PCBs), organochlorine pesticides (OCPs), and polycyclic aromatic hydrocarbons (PAHs) were chosen as target compounds to be quantified by Gas Chromatography-Mass Spectrometry (GC–MS), while the non-target screening was carried out by High Resolution Gas Chromatography-Mass Spectrometry (HRGC–MS). The target analysis revealed concentrations of 16 priority Polycyclic Aromatic Hydrocarbons by Environmental Protection Agency (EPA-PAHs) in the range of 29.9–269.1 ng/g; the quantification of 31 PCBs showed values from 0.54 to 15.3 ng/g, identifying CB-138, 153, 180, 52, and 101 primarily; and the detected OCPs (p,p’-DDT and its metabolites) ranged between 14.5 and 63.7 ng/g.
  • Cross Linked Sulphonated Poly(Ether Ether Ketone) for the Development of Polymer Electrolyte Membrane Fuel Cell

    Cross Linked Sulphonated Poly(Ether Ether Ketone) for the Development of Polymer Electrolyte Membrane Fuel Cell

    Cross Linked Sulphonated Poly(ether ether ketone) for the Development of Polymer Electrolyte Membrane Fuel Cell Abdul Ghaffar Al Lafi, MSc. A Thesis Submitted for the Degree of Doctor of Philosophy The School of Metallurgy and Materials, The College of Engineering and Physical Sciences, The University of Birmingham, Birmingham, UK. September 2009 University of Birmingham Research Archive e-theses repository This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. Synopsis Ion irradiation has been investigated as a route for the preparation of mechanically stable and highly durable cross linked sulphonated PEEK for fuel cell application. Ion irradiation was carried out using the University of Birmingham’s Scanditronix MC-40 Cyclotron operating at 11.7 MeV for H+ and 30 MeV for He2+ and the irradiated materials were characterized focusing on structural, thermal, morphological as well as dielectrical properties. Alterations produced in the molecular structure of amorphous PEEK by ion irradiation have been interpreted as due to chain scission and formation of cross links, as confirmed by sol-gel analysis in MSA using the well known Charlesby–Pinner equation. The thermal decomposition of irradiated PEEK was similar to that of untreated PEEK in that it occurred by a random chain scission process.
  • High Performance Ester Plasticizers

    High Performance Ester Plasticizers

    High Performance Ester Plasticizers Abstract Traditional elastomer polymers, such as nitrile, polychloroprene, chlorinated polyethylene and chlorosulfonated polyethylene, have for years used moderate- to low- performance ester plasticizers. However, longevity requirements for rubber articles made from these elastomers have created a need for higher-performance ester plasticizers. With the increasing high-temperature demands required by automotive, other elastomers such as acrylic, high-saturated nitrile, epichlorohydrin and ethylene propylene diene monomer EPDM are replacing the more traditional elastomers. Plasticizers commonly used for the traditional and the high-temperature polymers are extractable, incompatible or too volatile. This paper provides information on plasticizers that are designed for traditional elastomers and high-performance polymers. The test data will include heat aging, extraction by hydrocarbons and low-temperature as molded after aging. The information provided indicates that the permanence of the plasticizer after these various agings is the key to the retention of physical properties. Introduction End uses for elastomer compounds are quite diverse, but they can be loosely categorized as being either general performance or higher performance applications. Each of these performance categories requires a different set of considerations in terms of compounding with ester plasticizers. An ester plasticizer, in its simplest concept, is a high-boiling organic solvent that when added to an elastomeric polymer reduces stiffness and permits easier processing.1 For general performance applications, compounders require moderate performance in several areas without particular emphasis on any one. Some general performance ester plasticizers used in the marketplace today are DOA, DIDA, DIDP, DOP, DINP and other phthalates and adipates made from straight-chain alcohols of 7–11 carbons in length.
  • Levels of Persistent Organic Pollutants in Several Child Day Care Centers

    Levels of Persistent Organic Pollutants in Several Child Day Care Centers

    Journal of Exposure Analysis and Environmental Epidemiology (2001) 11, 449 – 458 # 2001 Nature Publishing Group All rights reserved 1053-4245/01/$17.00 www.nature.com/jea Levels of persistent organic pollutants in several child day care centers NANCY K. WILSON,a JANE C. CHUANGb AND CHRISTOPHER LYU a aBattelle, Durham, North Carolina bBattelle, Columbus, Ohio The concentrations of a suite of persistent organic chemicals were measured in multiple media in 10 child day care centers located in central North Carolina. Five centers served mainly children from low-income families, as defined by the federal Women, Infants, and Children (WIC) assistance program, and five served mainly children from middle-income families. The targeted chemicals were chosen because of their probable carcinogenicity, acute or chronic toxicity, or hypothesized potential for endocrine system disruption. Targeted compounds included polycyclic aromatic hydrocarbons (PAHs), pentachloro- and nonyl-phenol, bisphenol-A, dibutyl and butylbenzyl phthalate, polychlorinated biphenyls (PCBs), organochlorine pesticides, the organophosphate pesticides diazinon and chlorpyrifos, and the herbicide 2,4-dichlorophenoxyacetic acid (2,4D). Sampled media were indoor and outdoor air, food and beverages, indoor dust, and outdoor play area soil. Concentrations of the targeted compounds were determined using a combination of extraction and analysis methods, depending on the media. Analysis was predominantly by gas chromatography/mass spectrometry (GC/MS) or gas chromatography with electron capture detection (GC/ECD). Concentrations of the targeted pollutants were low and well below the levels generally considered to be of concern as possible health hazards. Potential exposures to the target compounds were estimated from the concentrations in the various media, the children’s daily time–activity schedules at day care, and the best currently available estimates of the inhalation rates (8.3 m3 /day) and soil ingestion rates (100 mg/day) of children ages 3–5.
  • Microporous Membranes from Poly\Ether-Etherketone\-Type

    Microporous Membranes from Poly\Ether-Etherketone\-Type

    Europa,schesP_ MM M M M M MINI M MM I M I M J European Patent Office a At* w%n © Publication number: 0 492 446 B1 Office europeen, desJ brevets © EUROPEAN PATENT SPECIFICATION © Date of publication of patent specification: 29.11.95 © Int. CI.6: B01 D 71/52, B01D 67/00, C08J 9/26 © Application number: 91121801.4 @ Date of filing: 19.12.91 The file contains technical information submitted after the application was filed and not included in this specification Mlcroporous membranes from poly(ether-etherketone)-type polymers and low melting point crystalllzable polymers, and a process for making the same. ® Priority: 21.12.90 US 633600 California 94526 (US) Inventor: Beck, H. Nelson @ Date of publication of application: 390 La Vista Road 01.07.92 Bulletin 92/27 Walnut Creek, California 94598 (US) © Publication of the grant of the patent: Inventor: Lundgard, Richard A. 29.11.95 Bulletin 95/48 2441 Whltetall Drive Antloch, © Designated Contracting States: California 94509 (US) DE DK FR GB IT NL Inventor: Wan, Hawk S. 4627 Fleldcrest Way © References cited: Antloch, EP-A- 0 297 744 California 94509 (US) EP-A- 0 337 626 Inventor: Kawamoto, Jlro EP-A- 0 409 416 2348 Benham Court EP-A- 0 417 908 Walnut Creek, California 94596 (US) © Proprietor: THE DOW CHEMICAL COMPANY Inventor: Sonnenscheln, Mark F. 2030 Dow Center, 3512 Blythe Drive Abbott Road Antloch, Midland, California 94509 (US) 00 Michigan 48640 (US) CO @ Inventor: Mahoney, Robert D. 240 Daylight Palace Danville, CM Oi Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted.
  • Innovations Give to Rotational Molding

    Innovations Give to Rotational Molding

    www.canplastics.com SEPTEMBER 2018 Innovations give NEW SPINS to rotational molding Ontario rotomolder TECHSTAR Making PLASTICS ROBOTS & turns AUTOMATION safer than ever REVITAL POLYMERS wants to recycle your black plastic Cutting-edge AUTOMOTIVE APPLICATIONS CPL_Sept2018issue_AMS.indd 1 2018-08-27 8:56 AM The POWER of Performance NWB-DC+ Portable Dryer Sold & Serviced in Canada by NOVATEC continues to lead the charge in reliable Maguire Products Canada, Inc. drying technology and industry-first innovations. 905-879-1100 TOTA [email protected] • Most sold T L C ES O S W T www.maguirecanada.com • Easiest-to-use smart controls O L • Web-enabled access –5– YEAR warranty O F I P O H NOVATEC products are made in the USA. Supported worldwide. W N E R S www.novatec.com © Copyright 2018 NOVATEC, Inc. CPL_June2018_Novatec.inddCPL_Sept2018issue_AMS.indd 1 2 2018-05-032018-08-27 1:248:56 PMAM contents SEPTEMBER 2018 VOLUME 77 • NUMBER 4 The POWER of Performance FROM THE ARCHIVES The April 1994 issue of Canadian Plastics broke the news about a cutting-edge pro- cessing technology that combined paint- ing of plastic parts with injection molding. Launched at the NPE1994 trade show, the injected paint technology, or IPT, was developed by the EPIC Group, which was made up of 25 companies in six major research areas related to engineering polymers, including H.B. Fuller Evode, Battenfeld GmbH, DSM, Caradon Rolinx, and toolbuilders Clearplas and Mouldflow. The IPT process involved parts being in- 10 jection molded and painted in the same Cover Photo Getty Images mold, and parts ranging from two to 12 mm wall thicknesses had been produced at the show.