摘要
本研究以聚乙烯薄膜为研究对象,60Co辐照装置为辐照源,辐照剂量分别为0、10、50、100kGy,60Co γ射线辐照对聚乙烯薄膜降解性能影响的研究结果表明,60Co γ射线辐照聚乙烯薄膜能有效的增加薄膜表面的亲水性,降低力学性能。当60Co γ射线辐照剂量达到100kGy时,聚乙烯薄膜表面出现大量裂纹,纯水接触角为44°,有利于微生物吸附。60Co γ射线辐照法是一种能够有效促进聚乙烯薄膜降解的方法。
The degradability of polyethylene films were performed under absorbed doses of 0, 10, 50, 100kGy by 60Co γ ray. The radiated polyethylene films were investigated by FT-IR spectrum, water contact angle, SEM images and tensile strength. The results showed that the radiated polyethylene films exhibit more hydrophilic and less mechanical properties. When 60Co γ-ray irradiation dose reached 100 kGy, large of crack was observed in the polyethylene films surface and the water contact angle rose up to 44°, which was available for microbe adsorption. Thus, the method of 60Co γ-ray irradiation is an effective way for degradation of polyethylene films.
出处
《核农学报》
CAS
CSCD
北大核心
2013年第9期1366-1370,共5页
Journal of Nuclear Agricultural Sciences
基金
江苏省农业科技自主创新资金项目(CX(12)3031)
关键词
聚乙烯薄膜
辐照
降解
亲水
Polyethylene films
Irradiation
Degradation
Hydrophilic
