塑料脆化温度测试的影响因素研究  

Study on Testing of Brittleness Temperature of Plastics

作　　者：宋蓓蓓 郭乔 胡生平 吴博 

机构地区：[1]金发科技股份有限公司,广东广州510663

出　　处：《合成材料老化与应用》2013年第6期20-22,共3页Synthetic Materials Aging and Application

摘　　要：通过测试共聚PP和均聚PP在不同测试条件下的脆化温度,讨论了脆化温度测试的相关影响因素。结果表明,冷冻时间、试样厚度及退火处理等都会对测试结果产生影响。冷冻时间变长会使脆化温度测试结果偏高;试样厚度越大,测得的脆化温度越高;退火对结晶型材料影响较大,而且结晶度越高,退火的影响越大。The influencing factors on the plastic＇s brittleness temperature testing results were studied by testing homo-polypropylene and co-polypropylene in different measurement conditions. The result shows that freezing time, the thickness of samples and annealing treatment affects testing results. The brittleness temperature results increase as the freezing time elongated. The thickness of the sample is greater, the brittleness temperature is higher. Annea- ling has great effect on the crystalline material, and higher the degree of crystallization results greater the influence of annealing.

关 键 词：塑料 冲击法 脆化温度 影响因素 

分 类 号：TQ322.2[化学工程—合成树脂塑料工业]