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Polyimide (PI)

Overview: commonly known as polyimide (PI), is an aromatic heterocyclic polymer compound whose molecular structure contains imide based links.
Product characteristics: excellent mechanical properties, wear resistance, excellent heat resistance, good radiation resistance, good chemical stability, flame retardant.
Application: aviation, automobile, electronic appliances, industrial machinery, etc.
Color: natural, black.

Performance parameter table

Projects	Standard	Unit	Numerical value
Density	ASTM D792	g/cm³	1.42
Yield tensile strength	ASTM D638	Mpa	90
elongation at break	ASTM D638	%	10
bending strength	ASTM 790	Mpa	110
Flexural modulus	ASTM 790	Mpa	3000
Rockwell hardness	ASTM D785		48
Charpy impact strength	GB 1043	KJ/M2	80
melting point	DSC	℃	500
Thermal deformation temperature	ASTM D648	℃	330
Long term operating temperature	-	℃	310
Short term operating temperature	-	℃	330
Coefficient of linear expansion	ASTM D696	Um/m/K	55
Dielectric strength	ASTM D150	KV-mm	100
dielectric loss coefficient	ASTM D150	-	0.018
Bulk resistance	ASTM D257	Ω.cm	10¹⁵
Surface resistance	ASTM D257	Ω	10¹⁷
Dielectric constant	ASTM D149	-	3.5
Equilibrium water absorption	23℃ 60%RH	%	0.24
Hot water resistance	23℃ 60%RH		+
Combustibility	UL 94		V-0
Friction coefficient	EEC 90/128 FDA		+
UV resistant	-		+

Note: 1. "+" can be tolerated, "-" cannot be tolerated, "0" depends on the situation.
2. The above data are obtained from the raw material test data, and the performance of the finished product is not exactly the same, do not guarantee the uniqueness of the data.

BeePlastics has been in the plastics industry for over 20 years and is one of many plastics manufacturers that produce, and process high quality products using PI materials and provide quality plastics solutions to companies around the world. Contact BeePlastics today to learn more about PI materials and our Bee Plastics services.

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