Light transmittance

SUMIKAEXCEL PES is a transparent resin with a slight yellow color that has a low haze value and an excellent light transmission rate among heat-resistant engineering plastics.

Figure 3-8-1 Light Transmittance of SUMIKAEXCEL PES

Refractive index

This shows the refractive index for SUMIKAEXCEL PES. Since PES has a high refractive index, it is excellent for applications such as lenses.

Table 3-8-1 Refractive Indices of SUMIKAEXCEL PES

Weather Resistance

As with other sulfone resins, SUMIKAEXCEL PES does not have good weather resistance. Ultraviolet rays cause the surface of the polymer to deteriorate. It may be possible to use outdoors in black to reduce loss of strength.

Figure 3-8-2 Weather Resistance of SUMIKAEXCEL PES

CAE Analysis

CAE (computer-aided engineering) analysis can be used to evaluate (simulate) product design issues using a computer. The table below shows some of the technical data required for CAE. The following data was measured for flow analysis. Please contact us to obtain the detailed technical data required for CAE analysis.

Table 3-8-2 Characteristics of SUMIKAEXCEL PES

	Test method	Unit	Unreinforced	Glass fiber reinforced
			3600G 4100G 4800G	3601GL20 4101GL20	3601GL30 4101GL30
Specific heat	ASTM E1269	J/(kg·K)	963	847	788
Thermal conductivity	ISO 22007-2	W/(m·K)	0.16	0.28	0.31
Young's modulus (MD)	ASTM D638	MPa	2,650	6,600	8,900
Young's modulus (TD)	ASTM D638	MPa	2,650	4,300	5,000
Poisson's ratio (MD)	ASTM D638	-	0.40	0.40	0.41
Poisson's ratio (TD)	ASTM D638	-	0.40	0.47	0.49
Linear expansion coefficient (MD)	ISO 11359-2	10-5/K	4.9	2.4	2.1
Linear expansion coefficient (TD)	ISO 11359-2	10-5/K	4.9	4.7	4.5