混和增塑剂对105℃聚氯乙烯电线电缆的辐射交联的影响

THE EFFECT OF MIXED PLASTICIZER ON RADIATION CROSSLINKING OF WIRE AND CABLE MATERIALS FOR HEAT RESISTANT 105℃ POLYVINYL CHLORIDE

耐温105℃聚氯乙烯(PVC)电线电缆料一般使用偏苯三酸酯类,如TOTM,NODTM等作增塑剂,但价格太贵。为了降低使用量,本文研究了TOTM与环氧大豆油(ESBO)混合增塑剂对105℃辐射交联型聚氯乙烯电线电缆料的辐射交联的影响,从不同TOTM/ESBO比例的机械性能,电性能及热稳定性能来看,只要ESBO用量适当,电线电缆料能达到满意的综合性能指标。

To prepare 105℃ heat resistant PVC wire and cable, the ester of trimelliticacid are generally used by its plasticizer,for example TOTM and NODTM etc.,butthe price of this kind of plasticizer is higher. For the sake of depression ofquantity of TOTM, in present work, the effect of mixer of TOTM and ESBO(epoxide soyabean oil) on the properties of radiation crosslinked wire and cablefor 105℃ heat resistant PVC has been studied. From mechanical, electric proper-ties and thermal stability of wire and cable with different ratio TOTM/ESBO, itmay be known that the radiation crosslinked wire and cable will possess bettersynthetic properties, when the usable quantity of ESBO is an appropriate amount.