Performance comparison of typical biodegradable polymers and polyolefins

Performance comparison of typical biodegradable polymers and polyolefins

Time:2021-7-16
speciesGlass transition temperature/℃ Melting temperature °C Tensile strength/MPa Elastic modulus/MPa Elongation at break (%) 
Polylactic acid (PA)40~70130~18048~53350020~240
Polyhydroxybutyrate (PHB)0140~18025~4035003~8
Polyhydroxyalkanoate (PHA)-30~1070~17018~24700~18003~25
Polyhydroxybutyrate Polyhydroxyvalerate (PHB~PHV)0~30100~19025~30600~10007~15
Polycaprolactone (PCL)-3059~654~28390~470700~1000
Polybutylene succinate (PBS)-3211440~60500170~250
Polybutanol dicarboxylate (PBAT)-30110~11534~40~500~800
Polyvinyl Alcohol (PVA)58~85180~23028~46380~350~
Polyglycolic acid (PGA30~40225~2308907000~840030
Polybutylene adipate terephthalate (PTMAT)-30108~110twenty two100700
Polyethylene adipate (PEA)-20125~19025180~220400
starch 110~11535~80600~850580~820
Cellulose ~55~1203000~500018~55
Cellulose acetate 1151046013~15
Low density polyethylene (LDPE)-10098~1158~20300~500100~1000
Polystyrene (PS)70~11510034~502300~33001.2~1.3
Polyethylene terephthalate (PET)73~80245~26548~722800~840030

One disadvantage of PLA during molten state processing is that it is prone to thermal decomposition, which is related to its processing temperature and its residence time in the extruder or hot runner. Generally speaking, there are several main thermal decompositions of PLA.

Performance comparison of typical biodegradable polymers and polyolefins
raw material for PLA (polylactic acid)

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