氢氧化铝及红磷协同阻燃热收缩材料的制备及性能  

Preparation and performance of cooperative flame retardants of aluminum trihydrate and red phosphorus on heat-shrinkable material

作　　者：汪艳[1] 周小舟[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430074

出　　处：《武汉工程大学学报》2012年第11期50-54,共5页Journal of Wuhan Institute of Technology

摘　　要：采用氢氧化铝(ATH)以及红磷(RP)复配作为阻燃剂,聚乙烯(PE)和乙烯-醋酸乙烯共聚物(EVA)为基体材料,通过化学交联的方法制备新型无卤阻燃热收缩材料.实验结果表明,ATH与RP在分别添加40份和10份的情况下,可以使100份的PE/EVA热收缩材料达到V-0级阻燃;经过ATH沉淀包覆的红磷具有更好的体系相容性,能得到较高的拉伸强度和断裂伸长率;随着EVA份数的增加,热收缩材料的拉伸强度和断裂伸长率随之提高.最佳配方比为PE∶EVA∶ATH∶RP=20∶80∶40∶10.New halogen-free flame retardant heat-shrinkable materials were prepared by chemically cross linking with aluminum trihydrate （ATH） and red phosphorus （RP） compounded as flame retardant, polyethylene （PE） and ethylene-vinyl acetate copolymer （EVA） as the basic material. The experimental results indicate that when 40ATH and 10RP respectively are added, the flame retardancy of 100 PE/EVA heat shrinkable materials can be achieved to V-0. RP precipitated and cladded through ATH has better compatibility, and can get higher tensile strength and breaking elongation. As the addition of EVA, the tensile strength and breaking elongation of heat-shrinkable materials are also improved. The best ratio of the formula is PE ： EVA ： ATH： RP=20 ： 80 ： 40： 10.

关 键 词：包覆红磷 返滴法 吸水 机械性能 热收缩率 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]