摘要
考察了七种典型农用大棚膜在广州、海南的自然老化。结果表明,EVA类薄膜在海南的耐候性好于广州,而聚乙烯类薄膜在广州的耐候性好于海南;七种典型农用大棚膜在自然暴露的早期,断裂伸长率均有上升,之后则逐渐下降,直至不能满足使用要求。
In this paper, nature weathering phenomenon of seven typical agriculture film exposed in Guangzhou and Hainan was investigated. It was showed that weathering-resisting performance of EVA films in Hainan was better than in Guangzhou; and weathering-resisting performance of PE films in Hainan was worse than in Guangzhou. Early of exposing, extensibility at break of all kinds of film was increased, then decreased gradually.
出处
《合成材料老化与应用》
2005年第2期4-7,32,共5页
Synthetic Materials Aging and Application
基金
科技部基础司基础性工作项目(编号G99-A-08-4)
