蒜茎叶基丙烯酸酯液体地膜的制备及抗虫性能研究OA北大核心CSTPCD

In this study,the sprayable garlic stem and leaf waste(GL)-acrylate liquid mulch film with anti-insect function was prepared by emulsion polymerization of GL and acrylic monomer,where GL was fully utilized.The effects of GL usage on emulsion viscosity,sprayability,wicking property and film formation were studied,and the mechanical proper-ties,water retention and thermal insulation properties of GL-acrylate films were also evaluated.The structures of GL-ac-rylate films were characterized by scanning electron microscopy,infrared spectroscopy and thermogravimetric analysis.The biodegradability and pests resistance of GL-acrylate film were evaluated.The experimental results indicated that when the mass ratio of GL to acrylate monomer was 0.5/10,GL-acrylate emulsion had good film-forming and sprayabili-ty,and the GL-acrylate film had good mechanical properties,the minimum soil water evaporation rate(19.7%)and the best soil heat preservation ability,which could increase the germination rate of pakchoi seeds by 20%.At the same time,it reduced the area of leaf damage by 12%and the survival rate of plutella xylostella pests by 20%.