电线电缆用LLDPE/HDPE共混改性护套料的研制  

Study on the Blend Modified LLDPE/HDPE Sheathing Compound for Wire and Cable

作　　者：苏朝化[1] 裴海燕[1] 樊瑞[1] 

机构地区：[1]中原工学院,郑州450007

出　　处：《绝缘材料》2009年第2期8-11,共4页Insulating Materials

摘　　要：采用共混改性的方法,研制了电线电缆用聚乙烯(PE)护套料,其配方为:线性低密度聚乙烯(LLDPE)7042为60份,高密度聚乙烯(HDPE)TR144为20份,HDPE 2200J为20份,高耐磨炭黑为2.7份,抗氧剂为0.8份,润滑剂为0.8份。该护套料的绝缘电阻率为2.36×1014Ω.m,耐环境应力开裂时间大于500 h,耐气候老化时间为4000 h,材料的断裂伸长变化率为5%。A polyethylene （PE） sheathing compound for wires and cables was developed with process of melt blending modification. The formulation of the sheathing compound was determined as follows： 60.00phr of LLDPE 7042, 20.00phr of HDPE TR144, 20.00phr of HDPE 2200J, 2.70phr of high abrasion furnace black, 0.8 phr of antioxidant and 0.80 phr of lubricant. The sheathing com- pound possesses the following physical and mechanical properties： an insulation resistivity of 2.36×10^14Ω.m, a time of resistance to environmental stress cracking of over 500 h, a time of resistance to weathering of 4000 h and a breaking extension rate of 5%.

关 键 词：聚乙烯 共混改性 耐环境应力 耐候老化 电线 电缆 护套料 

分 类 号：TM215.1[一般工业技术—材料科学与工程] TM246[电气工程—电工理论与新技术]