摘要
通过分子结构设计合成出改性聚氨酯树脂,其材料表现良好的力学性能、电气绝缘性、耐腐蚀性和紫外老化性。改性聚氨酯树脂材料的拉伸断裂强度和弯曲强度分别为58.4 MPa和101.2 MPa;表面电阻率和体积电阻率分别为9.68×1015Ω和2.60×1016Ω·cm;材料经高温化学介质腐蚀和紫外光线辐射后,模量损失率均低于13%,这些数值均优于传统环氧和不饱和聚酯树脂材料。相应材质电力复合材料杆塔和横担已投入示范线路运行,积累相关运行参数。
By molecular design,modified polyurethane was synthesized and the material exhibited excellent mechanical properties,electrical insulation,resistance to chemical corrosion and UV aging.Its tensile and flexural strength were 58.4 MPa and 101.2 MPa; surface and volume resistivity were 9.68 ×1015 Ω and 2.60 × 1016 Ω · cm,respectively; and their loss modulus was less than 13％ exposed under serious chemical substance and UV irradiation.Moreover,the properties of the polyurethane were superior to those of the traditional epoxy and unsaturated polyester resin.By now,resulted composite material poles and cross arms were operation under demonstration line,and accumulated relevant operating parameters.
出处
《塑料工业》
CAS
CSCD
北大核心
2014年第6期121-124,共4页
China Plastics Industry
关键词
复合材料
聚氨酯
玻纤增强
电力杆塔
Composite Material
Polyurethane
Glass Fiber Reinforced
Electrical Pole
