摘要
根据蚜虫对银灰色光有强烈的反趋向习性 ,对降解性聚乙烯避蚜地膜进行了研究和应用试验。以铝粉为吸收光介质做成银灰母料 ,与基础树脂LLDPE混合、挤出吹塑做成降解聚乙烯避蚜地膜 ,铝粉含量为 1 8%～ 3 0 %。大田应用证明 :降解性聚乙烯避蚜地膜具有降解、强化作物光合作用等性能。当银灰色光反射率达 3 0 %以上时 ,所制薄膜具有增产作物、驱避蚜虫、防治病毒害。
According to the character of the aphid's anti-tendency to silver gray light, the processing technology of degradable polyethylene mulch film for expelling aphids were studied, and the applications were experienced. By means of addition silver gray masterbatches containing 1.8%～3.0% aluminium powder into LLDPE, the degradable PE mulch films used for expelling aphids were made through blending extrusion. The applications proved that the products had degradability and intensive photosynthesis, and when the reflectivity of silver gray was above 30%, the actions of increase production of crops, expelling aphids ,prevention from aphids and curing virus, restraining growth of weeds and so on, were attained.
出处
《现代塑料加工应用》
CAS
2000年第3期22-25,共4页
Modern Plastics Processing and Applications
关键词
聚乙烯
铝粉
降解
避蚜
农用薄膜
polyethylene mulch film
aluminium powder
degradable
expelling aphids
