ZEDEX® Tribological Polymer Solutions
Semi-fi nished products Plastic granules Special compounds
ZEDEX® basic types ZEDEX® families Post heat Machining Shipping Sterilization Chemical 1 EN 09 / 10 treatment overview resistance Index
ZEDEX ® basic types 4–7 Thermal limitation usage ...... 5 Characteristics of the ZEDEX® basic types ...... 6 Comparison of the relative characteristics ...... 7
ZEDEX ® families 8–21 ZX-100 family ...... 8–9 ZX-324 family ...... 10–11 ZX-410 family ...... 12–13 ZX-530 family ...... 14–15 ZX-550 family ...... 16–17 ZX-750 family ...... 18–19 Comparison table of the ZEDEX® materials ...... 20–21
Post heat treatment 22–24 When is an annealing process advisable? ...... 22 Realization of the annealing process ...... 22 Hints regarding the annealing process ...... 22 Tensions ...... 23 Stress relaxation, warping ...... 23 Degree of crystallinity ...... 24
Machining 25–33 Dimensional stability ...... 25 Clamping ...... 25 Machining error ...... 25 Prevention of tears during machining ...... 25 Machining guideline ...... 26 Machines ...... 27 Tools ...... 27 Cooling ...... 27 Sawing ...... 28 Grinding, polishing ...... 28 Drilling ...... 28 Lathe turning ...... 29 Cutting ...... 29 Milling ...... 29 Filing, rasping, scraping ...... 29 Reaming ...... 30 Planing ...... 30 Thread cutting ...... 30 Knurling ...... 30
2 ZEDEX® basic types ZEDEX® families Post heat Machining Shipping Sterilization Chemical treatment overview resistance Stamping (Hot forming) ...... 30 Burr removing ...... 30 Tolerances for machined fi nished parts ...... 31 Achievable turning and milling tolerances ...... 32 Achievable surface roughness ...... 33
Shipping overview 34–76 Shipping oveview plastic granules ...... 35 Shipping overview semi-fi nished products ...... 36 Shipping overview of cut-to-size pieces, blanks made of standard and special compounds ...... 76 Shipping overview of end products made of standard and special compounds ...... 76
Sterilization 77–80 Introduction ...... 77 Chemical Sterilization ...... 77 Moist heat sterilization ...... 78 Dry heat sterilization ...... 78 Radiation sterilization ...... 78 Rating of ZEDEX® polymers resistance against radiations ...... 79 Rating of ZEDEX® polymers against chemicals used in the sterilization ...... 80
Chemical resistance 81–122 Introduction ...... 81 Infl uence on plastics ...... 81-82 Chemical resistance of the ZEDEX® polymers ...... 83 Chemicals list ...... 84–115 Synonym list ...... 115–120 Chemical group list ...... 121 pH-limit list ...... 122
Legal information 123
ZEDEX® basic types ZEDEX® families Post heat Machining Shipping Sterilization Chemical 3 treatment overview resistance ZEDEX® basic types
The ZEDEX® materials are located in families with the same material basis. For each basic type are also other special modifi ed types available.
Nomenclature
®
PBI ZEDEX Basic type Modification ZX- 324 V1T 310°C
PI 300°CZX-750
280°C
PAI 250°C ZX-324 PEEK
240°C ZX-530 ZX-550 LCP PPS PTFE PFA ZX-410 PFE PCTFE High-temperature plasticsPPSU PES 180°C
PEI PSU 160°C
140°C
PS ABS SAN 120°C PA4.6 PVDF PPA
110°C ZX-100K
Construction plastics PC 100°C PA6.6 PA6.10 PA6 PET PBT Inkuform POM
90°C PP
PMMA 80°C PA12
PE PVC Standard plastics 60°C amorphous semi-crystalline long-term service temperature [°C] Figure 1: long-term service temperature of the ZEDEX® basic types
4 ZEDEX® basic types ZEDEX® families Post heat Machining Shipping Sterilization Chemical treatment overview resistance Thermal limitation usage of ZEDEX® materials
All plastics react to temperature variations with strong mateiral´s proprieties modifi cation. Up to the glass tran- sition temperature, the characteristics variation is relative low. Over the glass transition temperature, proprieties variations should be considered. A 20 % overstepping of the glass transition temperature could involve a reduc- tion of 80% of the characteristics. At this point the material´s characteristics, determined at 20 °C, are not longer valid.
Continuous service temperature (long Glass transition temperature term) ...is the temperature, at which the amorphous struc- ...or UL 746B Relative Temperature Index (RTI) tures of the polymers lose their stability. The mechan- represents a material characteristic. It dipends on ical characteristics of the amorphous polymers have a the thermoxidative stability of the polymer. During a strong decay. Whereas the crystalline structure of the long-term overstepping, the plastic reacts with severe semi-crystalline polymers has still got interconnec- properties modifi cation, as e.g. colour change, and tions. If the temperature increases again, the crystal- embrittlement to the complete chain destruction. This line structures lose their strong interconnections and happens even without the action of factors as, e.g. the characteristics strong decay. pressure, friction, chemicals.
ZX-100K short-term service temp. ZX-100EL63/55ZX-100EL63 long-term service temp. Short term service temperature glass transition temp. ZX-100MT ...may be temporarily admitted, however an early ZX-324 characteristics changes has to be expected. The time ZX-324V1T ZX-324V2T length depends on the operating conditions (e.g. at- ZX-324V11T mosphere) and it lasts from 3 to max. 100 hours. ZX-324VMT ZX-410 ZX-410V7T ZX-530 ZX-530CD3 ZX-530EL3 ZX-530KF15 ZX-550 ZX-550PV ZX-750V5T ZX-750V5KF
50 100 150 200 250 300 Temperature [°C]
Figure 2: temperature limit use of the ZEDEX® plastics
ZEDEX® basic types ZEDEX® families Post heat Machining Shipping Sterilization Chemical 5 treatment overview resistance Characteristics of the ZEDEX® basic types
Spider diagram To describe a plastic without images or numbers is diffi cult. A method for a good rapresentation is the spider diagram. On the circumference lie always the characteristics and the arrows show the quality of these characte- ristics. The more the arrow outward-fi lled is, the better the characteristic is. For example, the strength: the more the arrow outward-fi lled is, the better (higher) the strength is. About the costs, a wide-outward-fi lled arrow rapresents a positive cost, therefore a low cost.
Allround-material Example: ZX-100K
Materials with balanced characteristics are Allround- Temperature Chemical materials. The ZX-100K is up to 110 °C long-term resistance Strength service temperature an Allround-material. The V-value mpact material´s characteristics are till this temperature, resistance part of a higher-than-average level. Cost riction