影响硅烷交联聚乙烯绝缘交联度工艺因素的研究

Study on the Process Factors Influencing the Crosslinking Degree of SilaneCrosslinked Polyethylene Insulation

通过深入研究硅烷接枝聚乙烯配方组成以及硅烷接枝反应机理、交联反应机理以及交联反应动力学,明确交联温度、催化剂浓度以及水分含量等对于硅烷交联反应动力学的影响,明确如何消除低温环境、绝缘厚度、交联装盘量等涉及热量传导和水分渗透扩散等因素对交联反应速度的负面影响,通过制定和完善硅烷交联聚乙烯温水交联和蒸汽交联工艺,提高聚乙烯绝缘交联效率,保障整根线缆产品交联度的一致性。

Through in-depth study on the formula composition of silane grafted polyethylene,silane grafting reaction mechanism,crosslinking reaction mechanism and crosslinking reaction kinetics,the effects of crosslinking temperature,catalyst concentration and moisture content on silane crosslinking reaction kinetics,and how to eliminate low temperature environment,insulation thickness The cross-linking loading volume involves the influence of negative factors such as heat conduction and water penetration and diffusion on the cross-linking reaction speed.By formulating and improving the warm water cross-linking and steam cross-linking process of silane cross-linked polyethylene,the cross-linking efficiency of polyethylene insulation is improved and the Crosslinking Degree of the whole insulation is guaranteed.