SYNERGETIC EFFECTS OF SILANE-GRAFTING AND EVA ON WATER TREE RESISTANCE OF LDPE  

作　　者：江平开 

机构地区：[1]School of Chemistry and Chemical Engineering,Shanghai Key Laboratory of Electrical Insulation and Thermal Aging,Shanghai Jiao Tong University

出　　处：《Chinese Journal of Polymer Science》2010年第1期1-11,共11页高分子科学（英文版）

摘　　要：The synergetic influence of silane-grafting and polar additives （EVA） on the water tree resistance of the low density polyethylene has been investigated. A series of samples obtained before and after hydration have been characterized by measuring gel content, infrared spectroscopy （FTIR）, differential scanning calorimetry （DSC） and dielectric measurements. The results obtained clearly show that the silane condensation occurred and that the silane-grafting and polar additives have synergetic effects on the water tree resistance of LDPE with little influence on its dielectric properties, e.g. the dielectric breakdown strength, dielectric permittivity and loss tangent.The synergetic influence of silane-grafting and polar additives （EVA） on the water tree resistance of the low density polyethylene has been investigated. A series of samples obtained before and after hydration have been characterized by measuring gel content, infrared spectroscopy （FTIR）, differential scanning calorimetry （DSC） and dielectric measurements. The results obtained clearly show that the silane condensation occurred and that the silane-grafting and polar additives have synergetic effects on the water tree resistance of LDPE with little influence on its dielectric properties, e.g. the dielectric breakdown strength, dielectric permittivity and loss tangent.

关 键 词：Water treeing Vinyl trimethoxysilane Silane-grafting Synergetic influences Cable insulation 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TQ174.758