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09
Feb
2024

Materiais Não Metálicos / Materiais de Construção Mecânica II

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Polymer selection cheat sheet

Uses
MaterialApplicationProperties
ABSAutomotive (car body parts), goldclubs, (computer) casingsImpact resistant, tough, light weight, shock obsorbent, low creep
HDPEPlastic bottles, corrosion-resistant pipingHigh specific strength
HIPSInstrument panels and fittings, gasoline tanks, food industryVersatile, impact-resistant, good machinability, low strenght, soft, low cost, dimensional stable
LDPEContainers, packaging films
Insulation and semiconductive layers
Flexible, resistant to acids/alcohols/bases/esters
PA 6.6 (Nylon)Automotive, textilesExtreme durable and strenght, impact resistant, moisture absorbant therefore dimensional unstable
PCSafety covers, manifoldsExcellent impact resistance, transparent
PEEKUltra-high vacuum applications, Aerospace, bearings, piston parts, pumpsRobust, high temperature resistance, high strength, high stiffness, low creep
PEIElectric isolatorsStable temperature resistance, high tensile strength, dimensionally stable
PETPThermoforming applications, bottles, industrial fibersSemi-rigid to rigid, lightweight, sufficient gas-/moisture barrier, strong, impact resistant, wide intrinsic viscosity range
PICryogenic applications, electric wiring, bushes, bearings, socketsThermal stability, very low creep, high tensile strength, flexible, insulating and passivation
PMMAAlternative to glass, daylight redirection, medicalLight weight, shatter-resistant, easy handling and processing, low cost
POMGears, fasteners, lock systems, insulators, bobbins, connectorsHigh stiffness, low friction, dimension stable, high heat resistance, good electrical and dielectric properties, low water absorbtion, high abrasion resistance
PPKettles, durable folders/boxes, ropes, flexural hinge containersFatigue resistant; dielectric; chemical leaching, heat and corrosion resistant, low density, impact resistant, freezing resistant, colorfast
PSProtective packaging, containers, lids, bottles, trays, tumblersRigid or foamed, hard and brittle, poor oxygen/water vapor barrier, low melting point
PTFE (Teflon)Plain bearings, gears, slide plates, sealing gasketsHeavyweight, anti-stick, low-friction, excellent dielectric properties, non-reactive, hydrophobic, high creep
PVCTanks, valve bodies, pump componentsNo moisture absorption, chemical and corosion-resistant
PVDFSensors/batteries, thermal cameras, electrical wire insulationLightweight and lowcost fluorpolymer, strong piezoelectricity, negative d33 value, good electric isolation, low optical density

Properties
MaterialNameE
[GPa]
ρ
[kg/dm3]
σyield
[MPa]
Tmax
[°C]*
α
[μm/m/K]
λ
[W/m/K]
ABSAcrylonitrile Butadiene Styrene copolymer2.21.053588900.19
HDPEHigh density polyethylene0.90.9626 - 331201300.45
HIPSHigh Impact polystyrene21.042383810.18
LDPELow density polyethylene0.60.9320802000.35
PA 6.6Polyamide (nylon) 6.61.81.135575 850.20
PCPolycarbonate2.11.2260115650.21
PEEKPolyetheretherketone3.71.390181450.25
PEIPolyetherimide2.961.29105180500.22
PETPPolyethyleneterephthalate2.91.3760100700.24
PIPolyimide3.21.4380266 550.52
PMMAPolymethylmethacrylaat3.31.186070700.19
POMPolyoxymethylene4.51.42651071200.29
PPPolypropylene1.40.9020 - 371001800.15
PSPolystyrene3.31.054488 700.15
PTFEPolytetrafluorethylene0.52.1723245130.124
PVCPolyvinylchloride3.11.384570800.16
PVDFPolyvinylidenefluoride2.01.76451481120.12
*Maximum service temperature
Note: All parameters are for indication only; actual material properties depend on supplier and should always be checked.