POM AW-02日本宝理---对POM进行***成型时，为了达到较好的制品外观和减少成型时的模垢，要求其原料的含水率不超过0.1%。较高的干燥温度虽能使树脂烘干所需的时间大为缩短，但因过高的温度易使POM制品表面氧化变黄，所以***好采用较温和的干燥条件。均聚POM可采用的干燥温度为80~90℃，干燥时间为2~4h。共聚POM可采用干燥温度为90~100℃，干燥时间为2~4h。在干燥上的区别是因为共聚甲醛的吸湿率低于均聚甲醛，且热稳定性要好，所以采用高温烘烤
Aw-02 physical property table
Basic performance rating unit test method
Specific gravity 1.37 g / cm ASTM D792, ISO 1183
Mechanical properties - rating units - Test methods
Yield tensile stress
54 MPa ISO 527-2
53 MPa ASTM D638
elongation at break
50 % ASTM D638
15 % ISO 527-2
Bending modulus
2350 MPa ASTM D790
2250 MPa ISO 178
bending strength
79 MPa ASTM D790
75 MPa ISO 178
Charpy notched impact strength: 4.9 kJ / M ISO 179 / 1ea
Notched impact strength 39 J / M ASTM D256
Reverse notched impact strength 780 J / M ASTM D256
Thermal performance rating unit test method
Hot deformation temperature
(1.8MPa, UN annealed) 100 ℃ ASTM D648
(1.8MPa, UN annealed) 80 ℃ ISO 75-2 / A
Other performance rating unit test methods
Flame retardant grade HB UL 94