ENSINGER essentials. Technical know-how for …

1 ENSINGER essentials. Technical know -how for plastic THINK. & Metal Center, La Cadena DriveLaguna Hills, CA 92653 USATel: 949-770-8230 Fax: 949-770-8478 Email: 2 Table of ContentsClassification of Plastics3 High Temperature Plastics4 Engineering Plastics5 Water Absorption6 Modification Options6 Thermal Resistance7 Characteristic Mechanical Values8 Sliding and Abrasive Characteristics9 Flame Protection Classification10 Radiation Resistance of Plastics11 Applications in Electrical Engineering12 Applications in Foodstuffs and Medical Technology13 Processing of Plastics14 Machining guidelines14 Annealing specifications16 Welding17 Adhesion17 Available Dimensions for Semi-Finished Goods 18 Exclusion from Liability19 Material Standard Values19 Note to Material Standard Values19 ENSINGER High Temperature Plastics20 ENSINGER Engineering Plastics24 Chemical Resistance 26 Plastic & Metal Center.

2 La Cadena DriveLaguna Hills, CA 92653 USATel: 949-770-8230 Fax: 949-770-8478 Email: 3 Thermoplastic polymers can be divided into amorphous and semi-crystalline on the basis of their with an amorphous structure are normal-ly transparent and tend to be sensitive to stresscracking. They are suitable for making precision partsdue to their high dimensional plastics are opaque, mostly toughand show good or very good chemical can also be differentiated according to theirtemperature resistance: High-temperature plastics have long term servicetemperatures of above 150 C and have a high levelof thermo-mechanical suitable for the highest application tempera-tures (PI, PBI, PTFE) cannot be processed usingmelting processes. Production of parts is carried outby plastics can be used permanently at temperatures between 100 C and 150 C.

3 They exhibit good mechanical properties and goodchemical plastics can be used permanently at temperatures below 100 above pyramid of plastic materials shows a detailed overview of thermoplastic polymers on thebasis of these of Plasticsamorphoussemi-crystalline100 C150 C300 CPS, ABS, SANPEPPPMMAPPE 46, PA 6/6 TPET, PA 66 PBT, PA 6 POMPMPPA 11, PA 12 PCPA 6-3-TPEKPEEKLCP, PPSPTFE, PFAETFE, PCTFEPVDFPBIPITPIPAIPES, PPSUPEI, PSUPPP, PC-HTHigh temperatureplasticsEngineeringplasticsSt andardplastics4 IVESPEL and SINTIMID (PI)Depending upon the type, providehigh strength with a low level ofcreep and good wear-resistance upto 300 C in continuous stability, electricalinsulation, high purity, low outgas-sing. Suitable for thermally andmechanically stressed engineeringelements and flame (PAI)Very good physical stability lowlevel of creep, high chemical resi-stance.

4 Good wear resistance, lowthermal expansion coefficient inhe-rently flame HT (PEK)Increased level of properties com-pared to TECAPEEK. Very goodabrasion characteristics. Suitablefor high load sliding good chemical flame (PEEK)Balanced profile of properties; lowlevel of creep, high modulus of ela-sticity. Excellent tribological pro-perties, especially abrasion resi-stance. Very good resistance to dif-ferent media, FDA conformity andphysiologically harmless. Very goodchemical resistance. Inherentlyflame (PPS)Chemical resistance; low level ofcreep, high dimensional stabilitydue to low moisture absorption,high modulus of elasticity, inhe-rently flame E (PES)Inherently flame resistant, goodelectrical and dielectric propertiesand thus well suited for use aselectrical insulators.

5 Fulfils thefoodstuffs P (PPSU)Good impact strength, chemicalresistance and resistance to hydro-lysis. Inherently flame the foodstuffs S (PSU)High strength, rigidity andhardness. Low moisture uptakeand very good dimensional stabili-ty. Inherently flame the foodstuffs (PEI)Very good mechanical and electri-cal properties. Inherently flameresistant. Fulfils the SRP (PPP)Stiffer and harder than other non-reinforced thermoplasts. Highscratch and abrasion resistance against hot steamand chemicals. Outstanding mecha-nical properties. Low PTFE (PTFE)Highest chemical resistance, per-manent service temperature of260 C. Exceptional sliding cha-racteristics as well as excellentelectrical properties. Inherentlyflame resistant. Fulfils the food-stuffs ETFE (E/TFE)Good kinetic friction properties,very good chemical resistance andvery good mechanical flame resistant.

6 Fulfilsthe foodstuffs PVDF (PVDF)Very good chemical resistance,good electrical and thermal pro-perties. Very tough even at lowtemperatures and good mechanicalproperties. Can be processed as athermoplastic and physiologicallyharmless. Inherently flame resi-stant. High Temperature Plastics5 Engineering PlasticsITECAMID 12 (PA 12)Very high durability, good chemicalresistance, lowest water uptake ofall polyamides. Fulfils the 46 (PA 46)Heat-stabilized, good thermal insu-lation. Very well suited for slidingand wearing parts which are expo-sed to raised temperatures. 66 (PA 66)Good rigidity, hardness, wear-resi-stance and dimensional stability,good kinetic friction characteristics,types complying to FDA the foodstuffs parts which are exposed to hig-her mechanical and heat 6 (PA 6)Semi-crystalline thermoplasticwith good damping capacity, goodimpact strength and high degreeof toughness even at low tempe-ratures, good wear-resistance,especially against rough 6 (PA 6 G)Polyamide casting material withsimilar properties to TECAMID of parts with large volu-mes and large wall thickness pos-sible.

7 ITECAST 12 (PA 12 G)Polyamide casting material withsimilar properties to TECAMID 12,production of parts with large volu-mes and large wall thickness pos-sible. ITECARIM (PA 6 G)Very tough polyamide 6 block co-plymer. Very good strength andtoughness to be used advantage-ously in the low temperaturerange. Excellent resistance toimpact and abrasion, chemical resi-stance. Appliction specific adjusta-bility of the material (PC)Amorphous, transparent materialwith excellent impact strength,permanent service temperature120 C, good mechanical strength,low level of creep and very gooddimensional stability. Fulfils thefoodstuffs PET (PET)Good wear properties in moist ordry surroundings, high dimensionalstability due to low thermal expan-sion, low moisture uptake, gooddielectric properties, good chemi-cal resistance.

8 Fulfils the food-stuffs PBT (PBT)High strength and durability withgood dimensional stability, good sli-ding and wear characteristics, highprecision thanks to low water upta-ke, very high rigidity as well as alow thermal expansion coefficientdue to glass-fibre AH (POM-C)Semi-crystalline POM-copolymerwith good physical properties. Lowmoisture uptake, good fatiguestrength and rigidity, very simplemachine processing, good shapestability, parts with narrow toleran-ces. Good sliding the AD (POM-H)Slightly higher mechanical values incomparison to TECAFORM AH,very good resilience and high sur-face hardness, very good kineticfriction (PE, PP)High chemical resistance, highdegree of durability and elongationat break, low tendency to stresscorrosion cracking, very low wateruptake, good sliding characteristicsand low & Metal Center, La Cadena DriveLaguna Hills, CA 92653 USATel: 949-770-8230 Fax: 949-770-8478 Email: 6 Modification OptionsThe profile of plastic properties can be modified to therequired application by the specific use of fillers.

9 IReinforcing fibresGlass fibres are used mainly to increase themechanical strength, particularly tensile values, such as compression strength andtemperature-dependent dimensional stability, arealso improved. Carbon fibres may be used as an alternative toglass fibre to increase mechanical strength. Due tothe lower density, higher strength values can beachieved using the same proportion by , carbon fibres improve the sliding andwear incorporation of pigments and colorants into Technical plastics allows individually customized colour standards to be produced ( according to RAL, Pantone, etc.), although the choice of pig-ments with high-temperature plastics is limited. ILight stabilization Weathering or continual exposure to high tempera-tures can lead to discolouration or affect the mechanical properties of many plastics.

10 The addition of UVorthermal stabilizers helps prevent such effects. IFriction and wear-reducing fillersGraphiteis pure carbon, which in a finely groundstate exhibits high lubricating properties. By incor-porating it uniformly into a polymer, the coefficientof friction can be is a high temperature fluorinated of this material is its remarkable non-sticking properties. Under pressure the particlesfrom PTFE filled plastics develop a fine, slidingpolymer film on the opposite material disulphideis used primarily as anucleating agent and forms a uniform fine crystalli-ne structure even when small amounts are added,with increased abrasion resistance and reducedfriction. Stahl52 TECAMID 46 TECAFORM AHTECAMID 66 GF 30 STAHLTECATRON GF 40 TECATRONSINTIMID PUR HTVESPEL SP 1 TECASON PTECAPEITECADUR PETTECANATTECADUR PBTTECAPEEKTECAPEEK GF 30 TECAMID 6 und 66 TECAFINE PETECAFLON PVDFTECAFLON PTFE10,50,20,10,050,020,0102468101214 TECATORW ater AbsorptionPolyamides show increased water absorption in comparison to other engineering plastics.