旭化成POM EF750

旭化成POM EF750---Because rubber or thermoplastic elastomer has low modulus and is easy to bend, as a stress concentration system in plastic matrix, the shear yield and crazing of the matrix are induced, which makes the matrix brittle ductile transition and improves the toughness of the material. The main factors affecting the toughening effect include the size of rubber (elastomer) particles, the distance between adjacent particles and the interfacial adhesion between particles and matrix. Commonly used are thermoplastic polyurethane (PUR-T), EPDM, nitrile rubber (NBR), silicone rubber and so on.

EF750

POM | 聚甲醛#赛钢

日本旭化成

EF750 physical property table
Test method of physical performance rating unit
Specific gravity: 1.41 ASTM D792
Water absorption: 0.2% ASTM D570
Shrinkage rate and chemical method
(parallel direction) 1.6-2.0%
(vertical) 1.6-2.0%
Mechanical properties - rating units - Test methods
Tensile strength: 51 MPa ASTM D638
Elongation 15% ASTM D638
Bending strength: 87 MPa ASTM D790
Bending modulus 2780 MPa ASTM D790
Izod notched impact strength 39 J / M ASTM D256
Rockwell hardness 80 m ASTM d785
Thermal performance rating unit test method
Melt index 10 g / 10min ASTM d1238
Linear expansion coefficient 10 TMA method
Hot deformation temperature ASTM D648
(1.82MPa)120℃
(0.45MPa)162℃
Flame retardant HB