PP-Polypropylene

DESCRIPTION

Polypropylene (PP) is a thermoplastic polymer used in a wide variety of applications. Polypropylene is the second-most widely produced commodity (after polyethylene).

Polypropylene belongs to the group of polyolefins family and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat-resistant. Polypropylene is a mechanically tough material maintaining its toughness through a broad temperature range.  It also has a high chemical resistance which makes it useful for containment vessels and plating tanks. 

Polypropylene is available as a homopolymer and a copolymer.  Homopolymer polypropylene has better tensile strength while Copolymer polypropylene exhibits better chemical resistance and thermal stability.  Meyer Plastics has a selection of both types in sheet and rod.  Call us and we will supply it the way you want.

PRIMARY SOURCE

About the supplier:

Rochling, SE, Co. is our primary source for standard PP shapes. 

Standard Sizes:

Characteristics

Mechanical Properties

PropertyTest MethodUnitGuideline Value
HardnessASTM D2240Shore D69
Tensile Strength at yield 73°FASTM D638psi3500
Elongation at BreakASTM D638%≥300
Flexural ModulusASTM D790psi155000
Compressive StrengthASTM D695psi4400
Izod Impact, NotchedASTM D256ft-lb/in8
Coefficient of Friction, Dynamic0.25-0.28

Thermal Properties

PropertyTest MethodUnitGuideline Value
Coefficient of Linear Thermal ExpansionASTM D696in/in/°F x10-56
Melting Point°F323
Maximum Service Temperature, Air°F180
Heat Deflection Temperature 264psiASTM D648°F210
Flammability, UL941/8 inchHB

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Properties Guide

Temperature (Deg F)

PlasticMaxMinRange
PTFE-Teflon500-328828
PAI-Torlon482-328810
PEEK-Polyetheretherketone482-76558
PEI-Ultem392-58450
PPSU-Radel356-58414
PPS-Polyphenylene sulfide356-4360
PSU Polysufone302-58360
PVDF-Polyvinylidene fluoride302-58360
PC-Polcarbonate275-76351
PA-Nylon Extruded225-22247
POM-Acetal Homopolymer221-58279
PA-Cast Nylon221-22243
HDPE-Polyethelene212-40252
PET-P Polyester210-58268
Acetal Copolymer203-58261
UHMW-Polyethelene180-238418
PMMA-Acrylic194-40234
ABS-Acrylonitrile Butadiene Styrene176-4180
PP-Polypropylene16232130
PVC-Polyvinyl Chloride14414130

Tensile (PSI)

PlasticTensile PSI
PAI-Torlon20,000
PEI-Ultem15,000
PEEK-Polyetheretherketone14,500
Nylon Cast13,000
PPS-Polyphenylene sulfide12,500
PA-Nylon Extruded12,000
PET-P Polyester11,750
PPSU-Radel10,100
PSU-Polysulfone10,050
POM-Acetal Homopolymer10,000
PC-Polcarbonate10,000
Acetal Copolymer9,750
PMMA-Acrylic9,000
PVC-Polyvinyl Chloride7,500
PVDF-Polyvinylidene fluoride7,000
ABS-Acrylonitrile Butadiene Styrene5,100
UHMW- Polyethelene5,000
HDPE-Polyethelene4,000
PTFE-Teflon3,500
PP-Polypropylene3,500
This chart is meant to show relative temperatures and strength of the plastics listed.
Actual values may be different in each application.