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Arxiv:1810.10187V3 [Physics.Ins-Det] 10 Jan 2019 to Minimize Longitudinal Heat flow While Satisfying One’S Electrical Impedance and Shape (E.G
Properties of selected structural and flat flexible cabling materials for low temperature applications M. Daala,∗, N. Zobrista, N. Kellarisd,e, B. Sadouletb, M. Robertsonc aDepartment of Physics, University of California, Santa Barbara CA 93106-9530 bDepartment of Physics, University of California, Berkeley CA 94720-7300 cDepartment of Physics, University of California, Davis CA 95616-8677 dDepartment of Mechanical Engineering, University of Colorado Boulder, 80309-0427 eMaterials Science and Engineering Program, University of Colorado, Boulder, 80309-0596 Abstract We present measurements of the low temperature thermal conductivity for materials useful in the construction of cryogenic supports for scientific instrumentation and in the fabrication of flat flexible cryogenic cabling. The materials we measure have relatively low thermal conductivity. We present a method for measuring the heat transfer coefficient of flat cabling and show, using an example, that the thermal conductivity of a flex cable is reasonably well predicted by composing the thermal conductivities of its constituent material layers. Room temperature physical and mechanical data is given for the materials studied, as well as an overview of relevant materials science and manufacturing details. Materials include Timet Ti 15-3 and Ti 21S, Materion alloy vit105 (LM105) in amorphous state, ATI Metals Nb-47Ti, Johnson Matthey nitinol (NiTi), Mersen graphite grade 2020, DuPont Pyralux coverlay and Vespel SCP-5050, and Fralock Cirlex polyimide sheets. All data is in the temperature range 0:05 to 2 K, and up to 5 K for SCP-5050. Keywords: Thermal conductivity, Heat transfer coefficient, Cryogenic, Structural materials, Support structures, Flat flexible cables, Superconducting cables, Low temperature, Titanium alloys, Bulk metallic glass, vit105, LM105, Cirlex, Vespel, Pyralux, NbTi, Ti 15-3-3-3, Ti 21S, Nitinol, NiTi, Transition Temperature 1. -
DUPONT DATA BOOK SCIENCE-BASED SOLUTIONS Dupont Investor Relations Contents 1 Dupont Overview
DUPONT DATA BOOK SCIENCE-BASED SOLUTIONS DuPont Investor Relations Contents 1 DuPont Overview 2 Corporate Financial Data Consolidated Income Statements Greg Friedman Tim Johnson Jennifer Driscoll Consolidated Balance Sheets Vice President Director Director Consolidated Statements of Cash Flows (302) 999-5504 (515) 535-2177 (302) 999-5510 6 DuPont Science & Technology 8 Business Segments Agriculture Electronics & Communications Industrial Biosciences Nutrition & Health Performance Materials Ann Giancristoforo Pat Esham Manager Specialist Safety & Protection (302) 999-5511 (302) 999-5513 20 Corporate Financial Data Segment Information The DuPont Data Book has been prepared to assist financial analysts, portfolio managers and others in Selected Additional Data understanding and evaluating the company. This book presents graphics, tabular and other statistical data about the consolidated company and its business segments. Inside Back Cover Forward-Looking Statements Board of Directors and This Data Book contains forward-looking statements which may be identified by their use of words like “plans,” “expects,” “will,” “believes,” “intends,” “estimates,” “anticipates” or other words of similar meaning. All DuPont Senior Leadership statements that address expectations or projections about the future, including statements about the company’s strategy for growth, product development, regulatory approval, market position, anticipated benefits of recent acquisitions, timing of anticipated benefits from restructuring actions, outcome of contingencies, such as litigation and environmental matters, expenditures and financial results, are forward looking statements. Forward-looking statements are not guarantees of future performance and are based on certain assumptions and expectations of future events which may not be realized. Forward-looking statements also involve risks and uncertainties, many of which are beyond the company’s control. -
Outgassing of Technical Polymers PEEK, Kapton, Vespel & Mylar
Ivo Wevers Outgassing of Technical Polymers PEEK, Kapton, Vespel & Mylar Vacuum, Surfaces & Coatings Group Technology Department Outline • Part 1: Introduction • Polymers in vacuum technology • Outgassing of water : metallic surface vs polymer • Part 2: Outgassing at Room Temperature • Outgassing measurements of PEEK, Kapton, Mylar and Vespel samples • Fitting with 2-step and 3-step models • Diffusion coefficient, moisture content and decay time constant • Part 3: Attenuation of Polymers Outgassing • Effects of bakeout and venting on pump-down curves • Effects of desication with silica gel • Conclusions & Future Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 2 Part 1: Introduction • Polymers in vacuum technology • Outgassing of water : metallic surface vs polymer Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 3 Polymers in vacuum technology Polymers are sometimes the only option as seal/insulator PEEK, Kapton and Vespel -> bakeout temperatures of 150-200C° Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 4 Polymers in vacuum technology Polymers are sometimes the only option as seal/insulator PEEK, Kapton and Vespel -> bakeout temperatures of 150-200C° Guarantee a certain beam lifetime or certain operation conditions Outgassing limit (maximum pressure to be reached in 24 hours) is defined for each machine AND the residual gas analysis free of contaminants Acceptance test prior to installation: - Pumpdown will define the outgassing rate and variation -
Quadrant EPP Cestilene™ HD 1000 Polyethylene Datasheet
www.lookpolymers.com email : [email protected] Quadrant EPP Cestilene™ HD 1000 Polyethylene Category : Polymer , Thermoplastic , Polyethylene (PE) , HDPE , High Density Polyethylene (HDPE), Injection Molded Material Notes: Data provided by Quadrant Engineering Plastic Products for polymers in their European product line. Order this product through the following link: http://www.lookpolymers.com/polymer_Quadrant-EPP-Cestilene-HD-1000-Polyethylene.php Physical Properties Metric English Comments Density 0.930 g/cc 0.0336 lb/in³ ISO 1183 Water Absorption 0.010 % 0.010 % immersion Mechanical Properties Metric English Comments Hardness, Shore D 60 60 after 15 sec.; ISO 868 62 62 after 3 sec.; ISO 868 Ball Indentation Hardness 36.0 MPa 5220 psi ISO 2039-1 Tensile Strength, Yield 19.0 MPa 2760 psi ISO 527 Elongation at Break >= 50 % >= 50 % ISO 527 Elongation at Yield 15 % 15 % ISO 527 Tensile Modulus 0.750 GPa 109 ksi ISO 527 Compressive Yield Strength 4.50 MPa 653 psi at 1% nominal strain; ISO 604 8.00 MPa 1160 psi at 2% nominal strain; ISO 604 14.0 MPa 2030 psi at 5% nominal strain; ISO 604 Charpy Impact Unnotched NB NB ISO 179/1eU Charpy Impact, Notched 11.0 J/cm² 52.4 ft-lb/in² Partial Break; ISO 179/1eA Abrasion 100 100 Relative loss per DSM internal test (CESTILENE HD 1000 = 100) Thermal Properties Metric English Comments 175 - 225 µm/m-°C 97.2 - 125 µin/in-°F CTE, linear @Temperature 20.0 °C @Temperature 68.0 °F Thermal Conductivity 0.400 W/m-K 2.78 BTU-in/hr-ft²-°F Melting Point 130 - 135 °C 266 - 275 °F ISO 3146; DSC, 10°C/min -
Dupont™ Kalrez® KVSP™ Valve Stem Packing Technical Guidelines and Design to Improve Process Control and Minimize Fugitive Emissions
DuPont™ Kalrez® KVSP™ Valve Stem Packing Technical Guidelines and Design to Improve Process Control and Minimize Fugitive Emissions Technical Information—Rev. 4, March 2019 Introduction DuPont™ Kalrez® Valve Stem Packing (KVSP™) systems can help to significantly reduce fugitive emissions and improve process control through the innovative use of Kalrez® perfluoroelastomer parts combined with other proven packing materials. Graphite packing systems can meet fugitive emissions requirements but restrict valve movement, leading to inconsistent process control. Polytetrafluoroethylene (PTFE) has excellent process control response characteristics but cannot contain fugitive emissions when temperature cycling is involved in conjunction with operational cycling. Kalrez® packing systems overcome these deficiencies, as well as reducing leak rates to near-bellows performance. Kalrez® is chemically an elastomeric PTFE derived from tetrafluoroethylene (TFE), the same base monomer. It provides a unique combination of chemical resistance and inertness like PTFE, but with a higher temperature service limit and no tendency to cold flow. The chemical structure remains cross-linked and stable at high temperatures and does not move under load or deformation. Its resiliency and memory provide improved sealing for control valve stems. Using Kalrez® V-rings backed up with more rigid components of carbon fiber-reinforced PTFE (DuPont™ Vespel® CR-6100) has proven to be a major advancement in improving process control and reducing leakage to less than 1 ppm, or below the plant’s background level. Kalrez® perfluoroelastomer packing systems increase a valve’s ability to react quickly and smoothly to process changes (Figure 1). Kalrez® KVSP™ reduces process control variability to the control system’s capability, resulting in improvements to both yield and product quality on specification. -
Engineered-Plastics.Pdf
PLASTIC PLASTICS REFERENCE HANDBOOK REGAL PLASTIC SUPPLY COMPANY PLASTICS REFERENCE HANDBOOK Copyright 1999—2000 Regal Plastic Supply Company, a division of Regal Supply Company INTRODUCTION Established in 1954, Regal Plastic Supply Company is considered one of the foremost pioneers in the plastic distribution industry. Throughout the years, the innovative “customer- oriented plan for success” thinking has become a credible trademark our customers rely on. Fortifying that philosophy, Regal introduced its Plastic Materials Reference Guide in 1984. As products and industries continue to evolve, so does this compilation of technical data. We view providing our customers with tools for effective planning and purchasing as important as meeting product “supply and demand”. You will find this guide an invaluable reference source for researching or finding the answer pertaining to your plastic application. The product information contained herein covers the most commonly used materials; it does not reflect our total capacity. True customer service is a thought process not developed overnight. Our experience and stability in the industry gives Regal the opportunity to assist you in your plastics endeavors as you utilize staff who are accessible, knowledgeable and resourceful with regard to all inquiries. We invite you to visit the Regal Plastic Supply Company location in your vicinity. All locations maintain generous inventories of plastic sheet, rod, tube, film, and numerous finished products. Regal Plastic Supply Company thanks all of our customers for their patronage over the years. We will continue in our efforts to provide the best in JIT inventory and personal service. Plastic is in your future and Regal Plastic Supply Company is your best source. -
Application of Polyimide Actuator Rod Seals
(NASA-CR- 120878) APPLICATION OF POLYIiIDE N72-245306 ACTUATOR ROD SEALS AoH. Hatermann, et al (Boeing Co,, Seattle, Wash,) 30 Jan. 1972 177 p CSCL 11A Unclas G3/15 28867 I CR-I 20878 D6-54351 A A~ APPLICATION OF POLYIMIDE ACTUATOR ROD SEALS by A. W. Waterman, B. F. Gay, E. D. Robinson, S. K. Srinath, W. G. Nelson THE BOEING COMPANY prepared for NATIONAL AERONAUTICS AND SPACE ADMINISTRATION NASA Lewis Research Center Contract NAS3-14317 ! William F. Hady, Project Manager 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. CR- 120878 4. Title and Subtitle 5. Report Date APPLICATION OF POLYIMIDE ACTUATOR ROD SEALS January 30, 1972 6. Performing Organization Code 7. Author(s) A. W. Waterman, B. F. Gay, E. D. Robinson, 8. Performing Organization Report No. S. K. Srinath, and W. G. Nelson D6-54351 9. Performing Organization Name and Address 10. Work Unit No. YON 1347 The Boeing Company, Commercial Airplane Group 11. Contractor Grant No. P.O. Box 3707, Seattle, Washington 98124 NAS3-14317 13. Type of Report and Period Covered 12. Sponsoring Agency Name and Address CONTRACTOR REPORT National Aeronautics and Space Administration 7/1/70-1/30/72 Washington, D.C. 20546 14. Sponsoring Agency Code 15. Supplementary Notes Project Manager: W. F. Hady, Fluid System Component Division, NASA Lewis Research Center, Cleveland, Ohio 16. Abstract Development of polyimide two-stage hydraulic actuator rod seals for application in high-performance aircraft was accomplished. The significant portion of the effort was concentrated on optimization of the chevron and K-section second-stage seal geometries to satisfy the requirements for operation at 4500K (3500F) with dynamic pressure loads varying between 1.379 x 106 N/m2 (200 psig) steady-state and 1.043 x 107 N/m2 (1500 psig) impulse cycling. -
Brominated Polystyrene(BPS) FR
Brominated Polystyrene(BPS) FR Description Product Name : Brominated Polystyrene(BPS) Equivalent Name : Albermarle Saytex HP3010 ; Albermarle Saytex HP7010 ; Dead Sea FR‐803P Cas No. : 88497‐56‐7 Application It provides outstanding thermal stability and electrical performance. It is particularly suitable for engineering plastic applications such as polyesters (PET, PBT, PCT) and PA (nylons).it has outstanding thermal stability. It is an ideal choice for high temperature applications such as engineering plastics. Due to its stability, it can often be used where other flame retardants fail to survive. Due toits polymeric structure, it is non‐blooming in all applications. Excellent electrical properties provide yet another reason to choose this flame retardant for demanding engineering plastic applications. Benefits and Features Excellent Flow In Resin,Superior Color,Excellent Thermal Stability, Excellent Melt Stability, Excellent Non Blistering Performance, Improved Mechanical Properties,Low Loading Typical Properties BPS 3010 Appearance .............................................................................................................................................................. White grain/ yellowish powder. Content % ..........................................................................................................................................................................................................66 min. Melting point °C ............................................................................................................................................................................................. -
The Recent Developments in Biobased Polymers Toward
polymers Review The Recent Developments in Biobased Polymers toward General and Engineering Applications: Polymers that Are Upgraded from Biodegradable Polymers, Analogous to Petroleum-Derived Polymers, and Newly Developed Hajime Nakajima, Peter Dijkstra and Katja Loos * ID Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands; [email protected] (H.N.); [email protected] (P.D.) * Correspondence: [email protected]; Tel.: +31-50-363-6867 Received: 31 August 2017; Accepted: 18 September 2017; Published: 18 October 2017 Abstract: The main motivation for development of biobased polymers was their biodegradability, which is becoming important due to strong public concern about waste. Reflecting recent changes in the polymer industry, the sustainability of biobased polymers allows them to be used for general and engineering applications. This expansion is driven by the remarkable progress in the processes for refining biomass feedstocks to produce biobased building blocks that allow biobased polymers to have more versatile and adaptable polymer chemical structures and to achieve target properties and functionalities. In this review, biobased polymers are categorized as those that are: (1) upgrades from biodegradable polylactides (PLA), polyhydroxyalkanoates (PHAs), and others; (2) analogous to petroleum-derived polymers such as bio-poly(ethylene terephthalate) (bio-PET); and (3) new biobased polymers such as poly(ethylene 2,5-furandicarboxylate) -
Materials Matter™
MATERIALS MATTER™ Lower Levelized Cost of Energy (LCOE) through DuPont Innovation MATERIALS MATTER™ FOR BETTER LONG-TERM PV SYSTEM PERFORMANCE AND HIGHER FINANCIAL RETURNS DuPont has a rich heritage of innovation and leadership in the PV industry. It all began more than 55 years ago when our scientists created the first purified silicon for Bell Labs for use in the PV market. Since then, our broad and growing portfolio of materials has enabled significant leaps in module efficiency, reliability and overall system cost reduction. We are committed to continually driving technology innovation and have been granted nearly 200 PV worldwide patents since 2008, with more than 1,300 patent applications currently pending. In 2011, DuPont spent $2 billion U.S. dollars on research and development, with a significant portion focused on advancing the efficiency, lifetime and cost competitiveness of solar energy. We’ve also invested hundreds of millions of U.S. dollars in supply expansions over the past few years to support long-term industry growth. Today, DuPont offers the broadest materials portfolio time-tested for decades in more than five trillion in PV and provides six of the eight most critical materials panel-hours of outdoor PV field installations all around for manufacturing solar modules. These materials are the world. That’s trillions more hours of real PV exposure not only innovative, they have delivered demonstrable than other material providers in the industry. results, including: nearly doubling cell efficiency over 12 years; providing greater reliability and extending Looking ahead, we aim to increase efficiency well beyond system lifetime—with 30+ years of proven backsheet 20% and extend system lifetime toward 40 years, while performance; and reducing overall system cost with increasing system safety and reducing cost. -
Material Safety Data Sheet
Du Pont Page 1 Material Safety Data Sheet ---------------------------------------------------------------------- "VESPEL" POLYIMIDE PARTS AND SHAPES ALL IN SYNONYM LIST VSP001 VSP001 Revised 26-JAN-2007 Printed 02/11/2009 ---------------------------------------------------------------------- Substance ID :130000026921 ---------------------------------------------------------------------- CHEMICAL PRODUCT/COMPANY IDENTIFICATION ---------------------------------------------------------------------- Material Identification "VESPEL" is a registered trademark of DuPont. Corporate MSDS Number : DU003855 Tradenames and Synonyms "VESPEL" SP-1, "VESPEL" SP-3, "VESPEL" SP-21, "VESPEL" SP-22, "VESPEL" SP-26 "VESPEL" SP-101, "VESPEL" SP-102, "VESPEL" SP-202 # "VESPEL" SP-211, "VESPEL" SP-214, "VESPEL" SP-215, "VESPEL" SP-221, "VESPEL" SP-224, "VESPEL" SP-262, "VESPEL" SP-2515, "VESPEL" SP-2624 "VESPEL" ST-2010, "VESPEL" ST-2010G, "VESPEL" ST-2010H, "VESPEL" ST-2030, Company Identification MANUFACTURER/DISTRIBUTOR DuPont Engineering Polymers 1007 Market Street Wilmington, DE 19898 PHONE NUMBERS Product Information : 1-800-441-7515 Transport Emergency : 1-800-424-9300 Medical Emergency : 1-800-441-3637 ---------------------------------------------------------------------- COMPOSITION/INFORMATION ON INGREDIENTS ---------------------------------------------------------------------- Components Material CAS Number % Du Pont VSP001 Page 2 Material Safety Data Sheet POLY-N,N'-(p,p'-OXYDIPHENYLENE) 25038-81-7 30-100 PYROMELLITIMIDE GRAPHITE 7782-42-5 0-65 -
Kocetal Polyoxymethylene 1 1 Business Area
® Engineering Plastic KOCETAL POLYOXYMETHYLENE 1 1 BUSINESS AREA Seoul Ofce (Sales Division) Seoul Office (Sales Division) 1Seoul0th floor Ofce, Kolon (Sales Tow Division)er annex 1-22, Seoul Ofce (Sales Division) Byulyang-Dong, Gwacheon City, 10F, an annex to Kolon Tower 1-22, 10th floor, Kolon Tower annex 1-22, Seoul Ofce (Sales Division) ByulyGyunggi-Do,ang-Dong Korea, Gwacheon City, Byeolyang-dong, Gwacheon City, Gyunggi-Do, Korea Gyunggi-Do, Korea www.kolonplastics.com Headquarters and Plant www.kolonplastics.com Headquarters and Plant Headquarters, Factory and R&D Division Headquarters, Factory and R&D Division 1018, Eungmyeong-dong, Gimcheon-si, 101Headquarters,8, Eungmyung-dong Factory, Gimcand heon-CitR&D Divisiony, Gyeongsangbuk-do, Korea 101GyeongSangBukDo,8, Eungmyung-dong Korea, Gimcheon-City, GyTel:eongSangBukDo, +82-54-420-8491, K 8477orea TFel:ax: +82-54-420-8491, +82-54-420-8369 8477 Fax: +82-54-420-8369 Contact for further information If you want to inquire more detail information on product of KOLONPLASTIC,INC. follow the process written below. 1. Access the Internet hompage of KOLONPLASTIC, INC. www.kolonplastics.com/enghome 2. ‘SALES CONTACT’ category. 3. Then you can see contact number on E-mail, Tel or Fax according to regional groups. About Kolon Plastics Kolon Plastics-Growing with our customers as a POM Global Leader Kolon Plastics was established in March 1996 as a joint venture between Kolon Industries Inc. in Korea and Toray Industries Inc. in Japan. Production began in 1998 with capacity and sales of 25,000MT/year. After the 2nd factory line was completed, we produce 57,000MT of POM and 50,000MT of the other compouding materials a year.