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Plastic Injection (Conventlonal Thermoplastlcs)

Commodities List

Item		Semi-Crystalline	Amorphous	Density(g/cc)	Glass Transition Temperature，Tg	Shrinkage rate %
Polyethylene	PE	●		0.91~0.97	32~95	0.5~2.5
Polypropylene	PP	●		0.90~0.91	90~130	1.3~1.9
Polystyrene	PS		●	1.04~1.06	65~106	0.3~0.8
Polyvinyl Chloride	PVC		●	1.10~1.60	55~100	0.1~0.5
Acrylonitrile Butadiene Styrene Copolymers	ABS		●	1.04~1.06	82~122	0.4~0.8
Polymethyl Methacrylate	PMMA		●	1.14 ~ 1.20	76 ~ 116	0.2 ~ 0.8

Engineering polymers List

Item		Semi-Crystalline	Amorphous	Density(g/cc)	Glass Transition Temperature，Tg	Shrinkage rate %
Polyamide	PA	●		0.94 ~ 1.14	35 ~121	0.7 ~ 2.5
Polyacetal	POM	●		1.30 ~ 1.45	70 ~ 125	1.6 ~ 2.4
Polybuthylene terephthalate	PBT	●		1.29 ~ 1.50	50 ~ 110	1.3 ~ 2.4
Polycarbonates	PC		●	1.20 ~ 1.35	120 ~ 146	0.5 ~ 0.7
Polyoxyleneoxide	PPO		●	1.00 ~ 1.10	82 ~ 195	0.5 ~ 0.7

High performance engineering polymers

Item		Semi-Crystalline	Amorphous	Density(g/cc)	Glass Transition Temperature，Tg	Shrinkage rate %
Polyphenylene sulfide	PPS	●		1.34 ~ 1.40	110 ~ 265	1.0 ~ 1.4
Polyimides	PI	●		1.16 ~ 1.64	278 ~ 380
Polyether Ether Ketone	PEEK	●		1.30 ~ 1.45	151 ~ 300	0.8 ~ 1.0
Polyarylate	PAR	●		1.17 ~ 1.31	95 ~ 175	0.8 ~ 1.0
Liquid crystal polymers	LCP	●		1.35 ~ 1.45	198 ~ 310	0.1 ~ 1.0
Polysulfone	PSF		●	1.24 ~ 1.30	164 ~ 190	0.15 ~ 0.9
Polyethersulfone	PES		●	1.24 ~ 1.37	174 ~ 214	0.5 ~ 1.0

Thermo-setting Plastics

Item				Density(g/cc)		Glass Transition Temperature，Tg
Phenolic resin		PF		1.32		140~300
Urea-Formaldehvde		UF		1.45		110~115
Unsaturated polyester		UP		1.10		280
Polyurethanes		PU		1.00		40~110
Epoxide Resin		EP		0.60		40~300
Melamin-Formaidehved		MF		1.28		170~220
Silicon		Silicon		1.12		210~300
Diallyl Phthalate		DAP		1.50		160~310

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