聚丙烯热收缩带补口材料研制

Development of Polypropylene Heat Shrinkable Sleeve Material for Field Joint Coating

针对目前国内聚丙烯热收缩带补口材料的空缺,进行了聚丙烯热收缩带基材、热熔胶黏剂以及环氧底漆的配方的研制。结果表明:研制出的聚丙烯热收缩带基材、热熔胶黏剂与环氧底漆性能优良,兼容性好,补口安装系统的阴极剥离性能与高温热水浸泡性能均能满足国际标准要求。

In view of the present domestic vacancy of polypropylene heat shrinkable sleeve material for field jointcoating , the formulas of polypropylene substrate, hot melt adhesive and epoxy primer were studied.The results showthat the developed polypropylene substrate , hot melt adhesive and epoxy primer had excellent performance with goodcompatibility.The test properties of cathodic disbondment and hot - water immersion for the installation system of fieldjoint coating could meet the international standard requirements.