中国塑料 ›› 2024, Vol. 38 ›› Issue (8): 33-39.DOI: 10.19491/j.issn.1001-9278.2024.08.006

• 材料与性能 • 上一篇    下一篇

蒜茎叶基丙烯酸酯液体地膜的制备及抗虫性能研究

李博, 马军, 李文卓()   

  1. 南京林业大学理学院,南京 200018
  • 收稿日期:2023-12-05 出版日期:2024-08-26 发布日期:2024-08-19
  • 通讯作者: 李文卓(1972—),男,教授,从事功能材料研究,liwzlab0101@16.com
    E-mail:liwzlab0101@16.com
  • 作者简介:第一联系人:地址:北京市海淀区阜成路11号《中国塑料》杂志社广告部
    邮编:100048

Study on preparation and insect resistance property of garlic stem and leaf based acrylate liquid mulch film

LI Bo, MA Jun, LI Wenzhuo()   

  1. College of Science,Nanjing Forestry University,Nanjing 200018,China
  • Received:2023-12-05 Online:2024-08-26 Published:2024-08-19
  • Contact: LI Wenzhuo E-mail:liwzlab0101@16.com

摘要:

将蒜茎叶废弃物(GL)和丙烯酸酯单体通过乳液聚合的方法制备了具有抗虫功能的可喷涂的GL⁃丙烯酸酯液体地膜,GL在制备过程中被充分利用。研究了GL用量对于乳液黏度、可喷涂性、芯吸性(wicking)和成膜性的影响,并对GL⁃丙烯酸酯薄膜的力学性能、保水性和保温性进行评价。采用扫描电子显微镜(SEM)、红外光谱和热重分析技术对GL⁃丙烯酸酯薄膜的结构进行了表征,并且对GL⁃丙烯酸酯薄膜的生物降解性能和抗虫性能进行评价。实验结果表明,在GL与丙烯酸酯单体的质量比为0.5/10时,GL⁃丙烯酸酯乳液具有优异的成膜性和可喷涂性,GL⁃丙烯酸酯薄膜具有良好的力学性能,最小的土壤水分蒸发率(19.7 %)和最好的土壤保温能力,可以提高28 %小白菜种子发芽率,减少6 %的叶片受损面积,降低20 %的小菜蛾虫生存率。

关键词: 蒜茎叶废弃物, 丙烯酸酯单体, 可喷涂液体地膜, 抗虫

Abstract:

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 properties, water retention and thermal insulation properties of GL⁃acrylate films were also evaluated. The structures of GL⁃acrylate 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 sprayability, 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 %.

Key words: garlic stem and leaf waste, acrylic monomer, sprayable liquid mulch film, pest resisitance

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