旭化成POM LA543

旭化成POM LA543---DuPont developed POM / PUR-T alloy by mechanical blending and graft copolymerization, 

which not only maintains the strength and rigidity of POM, but also improves the impact resistance of POM. 

The notched impact strength of POM is 17 times higher than that of pure POM, reaching 906j / m. 

Bai Shibing of Sichuan University found that the impact strength of POM toughened by PUR-T / CaCO3 

ultrafine composite powder with CaCO3 as core and PUR-T as shell was greatly improved. 

The further study by Yu Jian et al. Showed that when the particle spacing of PUR-T coated CaCO3 

particles reached the critical value TC ≤ 0.18 μ m, and the coating thickness reached the critical 

value LC ≥ 0.7 μ m, the brittle ductile transition occurred in the blend POM material, 

the impact strength of the material could be dozens of times higher than that of pure POM, 

and the tensile strength could reach about 30MPa.

日本旭化成POM LA543 物性表
基本性能 额定值 单位 测试方法
比重 1.38 g/cm³ ASTM D792, ISO 1183
熔体质量流动速率
17 g/10 min ASTM D1238
    (190℃/2.16kg) 17 g/10 min ISO 1133
成型收缩率
    (flow) 1.8 to 2.2 % ASTM D955, ISO 294-4
    (Across flow) 1.8 to 2.2 % ISO 294-4
吸水率 (24hr) 0.30 % ASTM D570
洛氏硬度 ASTM D785
    (M-Scale) 81
    (R-Scale) 120
机械性能 额定值 单位 测试方法
拉伸模量 2800 MPa ISO 527-2
拉伸应力
    (Yield) 60.0 MPa ISO 527-2
57.0 MPa ASTM D638
拉伸伸长率
    (Break) 30 % ASTM D638
    (Break) 40 % ISO 527-2
弯曲模量 2650 MPa ASTM D790
弯曲强度 89.0 MPa ASTM D790
夏比缺口冲击强度 (23°C) 7.0 kJ/m² ISO 179/1eA
IZOD缺口冲击强度 69.0 J/m ASTM D256
热性能 额定值 单位 测试方法
热畸变温度
    (0.45MPa,未退火) 165 °C ASTM D648, ISO 75-2/B
    (1.8MPa,未退火) 115 °C ASTM D648
    (1.8MPa,未退火) 100 °C ISO 75-2/A
线性热膨胀系数 (flow) 0.00010 cm/cm/°C ASTM E831
其它性能 额定值 单位 测试方法
阻燃等级 HB UL 94