Thermal Expansion of Common Polymers and Plastics

The following table provides a comprehensive list of linear thermal expansion coefficients for different polymers and plastics, taken at room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)

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Linear Thermal Expansion of Polymers and Plastics
Acrylonitrile butadiene-styrene (ABS)53 - 110
Casein formaldehyde (GAT)50
Cellulose acetate (CA)80 - 180
Cellulose acetate butyrate (CAB)140
Cellulose acetate propionate (CAP)120 - 160
Cellulose nitrate (CN)65 - 160
Chlorinated polyvinyl chloride (CPVC)68 - 78
Ethylene tetrafluoroethylene (ETFE)90
Ethylene chlorotrifluoroethylene (ECTFE)80
Fluorinated ethylene propylene (FEP)135
Melamine formaldehyde (MF)22
Nylon 6 (PA6)45
Nylon 11 (PA11)125
Nylon 12 (PA12)100 - 120
Nylon 46 (PA46)25 - 50
Nylon 66 (PA66)40
Nylon 612 (PA612)120 - 130
Phenol formaldehyde (PF)16
Polyarylate resins (PAR)50 - 72
Polybenzeneimidazole (PBI)23
Polybutylene terephthalate (PBT)45
Polybutylene (PB)13
Polycarbonate (PC)38 - 70
Polyether ether ketone (PEEK)26 - 108
Polyetherimide (PEI)31 - 56
Polyethersulfone (PESU)55
High-density polyethylene (HDPE)100 - 200
Low-density polyethylene (LDPE)100 - 200
Medium-density polyethylene (MDPE)100 - 200
Ultrahigh molecular weight polyethylene (UHMWPE)130 - 200
Polyethylene naphthalate (PEN)20 - 21
Polyethylene terephthalate (PET)15 - 65
Polyimide (PI)30 - 60
Polymethyl methacrylate (PMMA)34 - 77
Polymethylpentene (PMP)117
Polyoxymethylene (POM)85
Polyphenylene oxide (PPO)38 - 60
Polyphenylene sulfide (PPS)30 - 49
Polypropylene (PP atactic)68 - 95
Polypropylene (PP isotactic)81 - 100
Polypropylene (PP syndiotactic)60 - 90
High-impact polystyrene (HIPS)90
Polysulfone (PSU)31 - 51
Polytetrafluoroethylene (PTFE)100 - 160
Polytrifluorochloroethylene (PTFCE)126 - 216
Polyurethane (PUR)100 - 200
Polyvinyl acetate (PVA)100 - 200
Polyvinylidene chloride (PVDC)190
Polyvinylidene fluoride (PVDF)80 - 140
Polyvinyl fluoride (PVF)50
Polyvinyl chloride (PVC)60 - 70
Unsaturated polyester (UP)16
Urea-formaldehyde (UF)22 - 96

The thermal expansion of polymers and plastics can vary depending on the specific formulation and processing conditions of the polymer or plastic.

References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.