γ射线辐照对Cu/LDPE纳米复合材料的影响  

Influence of γ-ray Irradiation on Nano Cu/LDPE Composite

作　　者：刘叶[1] 蔡水洲[1] 夏先平[1] 彭忠瑞[1] 谢长生[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,武汉430074

出　　处：《材料导报（纳米与新材料专辑）》2011年第1期194-196,共3页

基　　金：国家自然科学基金(50803023)

摘　　要：采用不同剂量的γ射线对Cu/LDPE进行辐照,并对复合材料的铜离子释放速度、力学性能、浸润性、自由体积等进行了分析。结果表明,辐照剂量不同,铜离子的释放性能发生较大改变;随辐照剂量的增加,拉伸强度先增大后减小,而材料的断裂伸长率和接触角持续减小,并初步探讨了实验结果。Nano Cu/LDPE composite, which was composed of nanocopper and low-density polyethylene （LDPE）, was irradiated by ^60Co γ-rays under atmospheric condition with various doses. And then, the changes on Cu^2＋ release rate, mechanical properties, contact angle and free-volume were studied. It is found that, with increasing radiation, Cu^2＋ release rate changed significantly, tensile strength increased first and then decreased with the radiation dose increased, while elongation at break and contact angle decreased monotonously, and the experimental results were discussed preliminarily.

关 键 词：γ 射线辐照 铜离子 释放性能 浸润性 力学性能 自由体积 

分 类 号：TB332[一般工业技术—材料科学与工程]