耐热PMMA MH

耐热PMMA MH--SUMIPEX通用等级可分为两个基本类别：良好流动型和耐热型。每种等级都有颗粒形式。有些牌号有珠型

Physical properties rating system of units test method

Specific gravity 1.19 g / cm? JIS k7112

Melt flow rate (melt flow rate) (230 ° C / 3.8 kg) 2.0 g / 10min JIS K7210

Shrinkage - flow 0.20 to 0.60% ASTM D955

Water absorption (24 hr) 0.30% JIS k7209

Hardness rating system of units test method

Rockwell hardness (m level) 100 JIS k7202

Mechanical properties rating system of units test method

Tensile strength 76.0 MPa JIS k7113

Elongation (breaking) 13% JIS k7113

Bending modulus 3200 MPa JIS K7203

Bending strength: 120 MPa JIS k7203

Flexural Rigidity 7.0 % JIS K7203

Supplementary information rating system of units test method

Voltage Resistance 2 20.0 kV/min JIS K6911

Test method of impulse performance rating unit system

Notched impact strength of simply supported beam: 1.4 kJ / M?JIS k7110

Thermal performance rating system of units test method

Thermal deformation temperature under load 3 (1.8 MPa, annealed)101 ° C JIS k7207

Vicat softening temperature 109 ° C JIS k7206

Linear thermal expansion coefficient - flow 7.0e-5 cm / cm / ° CASTM d696

Electrical performance rating system of units test method

Surface resistivity > 1.0e + 16 ohms JIS k6911

Volume resistivity > 1.0e + 15 ohms · cm JIS k6911

Dielectric constant 3.10 JIS k6911

Dissipation factor 0.040 JIS k6911

Insulation Resistance > 1.0E+15 ohms JIS K6911

Flammability rating system of units test method

Combustion rate 30 mm / min ASTM D63

UL flame retardant grade (1.59 mm, all colors) HB UL 94