Details

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Chemical Resistance, High Strength and Dimensional Stability

PPS is a crystalline plastic with high heat resistance (continuous use temperature of approximately 220°C) and superior mechanical strength, rigidity, flame resistance, chemical resistance, electrical properties and dimensional stability. The market for PPS has recently been expanding rapidly, taking advantage of its superior characteristics.

Uses

The primary uses of PPS is as electric/electronic components, automobile components, mechanical components (e.g., chemical pump), and components for semiconductor/liquid crystal manufacturing and testing equipment.

Characteristics

• PPS has superior dimension stability because of its extremely low water absorption and low linear expansion coefficient.
• PPS is extremely resistant to chemicals, and can withstand not only organic acids such as acetic acid but also strong inorganic acids such as hydrochloric and sulfuric acid. It is also not affected by strong bases.
• Although it has a high continuous use temperature of 220°C, it has a low glass transition temperature of 90°C; therefore care is required when PPS is used under high temperatures and high loads.
• PPS has high strength and high rigidity, as well as superior resistance to fatigue and creep.
• The grade recommended for superior sliding wear is PPS230AE3.

Comparison of General Physical Properties

Grade List

Grade	Characteristics
PPS (NC) SC	Standard grade(unfilled)
PPS (G40BK)	Fiberglass reinforced grade(black)
PPS 230-AE3	AE grade (conductive)
PPS 2001	High-function sheets (unfilled grade with a thickness of 0.2 to 2 mm)

* Refer to the Products Catalogue on page 36 for product specifications.

Properties Data

Category	Property	Unit	Testing Method ASTM	TPS® PPS
				NC-SC	G40	230-AE3
					BK
Mechanical properties	Tensile strength	MPa	D638	79	167	98
	Tensile elasticity	%		23.0	2.0	5.0
	Bending strength	MPa	D790	128	235	150
	Bending elasticity	GPa		3.3	11.8	6.2
	Poisson’s ratio	-	-	0.37	0.4	-
	Compressive strength	MPa	D695	-	-	-
	Izod impact strength (notched)	J/m	D256	15	157	45
	Rockwell hardness	-	D785	-	M80	M98
Physical properties	Specific gravity (23°C)	-	D792	1.35	1.59	1.40
	Water absorption (23°C， 24 Hrs)	%	D570	0.02	0.02	0.02
	Linear expansion coefficient	×10-5 /°C	JIS K7197	2.4～2.9	1.7～6.8	-
	Thermal conduction	W/mK	E 1530	0.20	-	-
	Flammability (UL)	-	D570	V-0 equivalent	V-2 (0.8mm)	V-0 equivalent
Thermal properties	Deflection temperature under load (1.82 MPa)	°C	D648	112	260	173
	Continuous use temperature	°C	-	220	220	220
	Glass transition temperature	°C	-	88	-	88
	Melting point	°C	-	278	-	278
Electrical properties	Dielectric strength	MV/m	D149	15.0	18.0	-
	Surface resistance	Ω	D257	1016	1016	101～6
	Volume resistance	Ω・cm		1018	1016	-
	Permittivity 106Hz	-	D150	3.6	4.1	-
	Dielectric tangent 106Hz	-		0.0011	0.003	-
Certified per the Food Sanitation Act				◯	-	-

• * The values given above for the properties are representative values given by the manufacturers of the raw materials, and are not guaranteed values for the product.
• * The cells with no values given (-) indicate that useful data is not available or cannot be obtained at this time.
• * AE stands for anti-electrostatic, and is an abbreviation for our anti-electrostatic grade material.