General Properties of UNIFINER｜UNIFINER｜Products

Polyarylate resin

	Properties	Measurement condition	Standards JIS	Unit	M-2000H Ultra Heat Resistance	M-2040 Easy Solubility	M-2040H Easy Solubility	U-100 U-Polymer
Thermal	Glass transition temperature	—	K 7121	°C	275	220	235	193
	Thermal conductivity	—	—	W/m·K	—	—	—	0.14
	Coefficient of linear thermal expansion	—	K 7197 basis	10^-6/°C	70	80	80	88
	Specific heat	—	K 7123	J/g·K	—	—	—	1.17
Physical	Density	—	K 7112	g/cm³	1.12	1.17	1.17	1.21
	Water absorption (immersion)	23°C/24h	K 7209	%	0.3	0.4	0.4	0.5
	Tensile strength at yield	—	K 7127	MPa	71	72	73	65
	Tensile elongation at break	—	K 7127	%	30	18	66	60
	Tensile modulus	—	K 7127	MPa	1900	1900	1900	1840
	Surface hardness	Pencil hardness	K 5600-5	—	HB	2B	—	HB
Optical	Light transmittance	—	K 7361-1	%	89	89	89	89
	Refractive index	—	K 7142	—	1.58	1.60	1.60	1.61
	Photoelastic coefficient	—	—	cm²/dyn	—	—	—	130×10^-12
Electrical	Dielectric breakdown strength	—	K 6911	kV/mm	110	120	126	160
	Surface resistivity	—	K 6911	Ω	More than 10¹⁴	More than 10¹⁴	More than 10¹⁴	More than 10¹⁴
	Volume resistivity	—	K 6911	Ω·cm	More than 10¹⁴	More than 10¹⁴	More than 10¹⁴	More than 10¹⁴
	Dielectric constant (Dk, ε)	60Hz	C 6481	—	2.9	3.2	3.2	3.2
		1kHz			2.9	3.2	3.2	3.2
		1MHz			2.8	3.1	3.1	3.2
		1GHz	Cavity resonance method		2.6	2.7	2.7	2.8
		5GHz			2.6	2.6	2.6	2.8
		10GHz			2.6	—	—	—
	Dissipation factor (Df, tanδ)	60Hz	C 6481	—	0.002	0.003	0.003	0.002
		1kHz			0.003	0.003	0.003	0.003
		1MHz			0.02	0.02	0.02	0.02
		1GHz	Cavity resonance method		0.008	0.007	0.007	0.007
		5GHz			0.006	0.005	0.005	0.006
		10GHz			0.006	—	—	—

* Measurement Thickness : 100µm

Polyarylate resin