旭化成POM CF454

旭化成POM CF454---Application: gear, gear coupling
Note: adding 20% carbon fiber, it has high rigidity and high strength of antistatic property

Cf454 physical property table
Test method of physical performance rating unit
Specific gravity: 1.46 ASTM D792
Water absorption: 0.2% ASTM D570
Shrinkage rate and chemical method
(parallel direction) 0.1-0.2%
(vertical) 0.6-0.8%
Mechanical properties - rating units - Test methods
Tensile strength 147 MPa ASTM D638
Elongation 4% ASTM D638
Bending strength 196 MPa ASTM D790
Bending modulus: 14210 MPa ASTM D790
Izod notched impact strength 39 J / M ASTM D256
Rockwell hardness 104 m ASTM d785
Thermal performance rating unit test method
Melt index 4 g / 10min ASTM d1238
Linear expansion coefficient 4 / 9 TMA method
Hot deformation temperature ASTM D648
(1.82MPa)164℃
(0.45MPa)166℃
Flame retardant HB

因橡胶或热塑性弹性体模量低、易于挠曲，在塑料基体中作为应力集中体系引发基体的剪切屈服和银纹化，促使基体发生脆——韧转变，提高材料的韧性。影响增韧效果的主要因素包括橡胶(弹性体)粒子的大小、相邻粒子间的距离及其粒子与基体间的界面结合力等。常用的有热塑性聚氨酯( PUR-T) 、EPDM、橡胶(NBR) 、硅橡胶等。