PA6/钨复合材料X射线老化研究  

Age Study of PA6/Tungsten Composite Under X-ray

作　　者：孙艳涛[1] 李运波[1] 黄芯颖[1] 杨珺[1] 朱玉斌[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《工程塑料应用》2012年第12期81-84,共4页Engineering Plastics Application

摘　　要：运用机械混合结合尼龙(PA)6与金属钨制备了环保无铅高能射线屏蔽材料。利用简支梁冲击试验机、差示扫描量热仪等手段分别研究了X射线辐照前后的复合材料的冲击性能、显微组织及PA6的结晶与熔融行为。研究发现,老化后复合材料的冲击性能、熔融温度和结晶温度下降,材料的密度提高,钨的加入抑制了辐照对复合材料冲击性能和结晶性能的影响,起到了保护基体的作用。By coating tungsten particles with polyamide（PA）6, with the method of mechanical mixing PA6 /tungsten high- energy ray shielding material was prepared. This kind of material was lead-free and friendly to environment. The impact property, crystallization and melting behaviors of the material before and after X-ray irradiation were studied respectively with the charpy impact test machine and differential scanning calorimetry etc. The results showed that the impact strength, melting temperature and the crystallization temperature of the material after aging declined. The meterial density increased, and the additive of tungsten restrained the influence of irradiation on impact properties and crystallization behaviors of the material and it played the role of protecting PA 6.

关 键 词：PA6 钨颗粒 X射线 结晶性能 冲击性能 

分 类 号：O631.33[理学—高分子化学]