• 专利标题:   Three-layer composite biodegradable film with sustained release function useful in agricultural mulching film field, comprises three-layer structure consisting of slow-release films and degradable films alternately, where degradable film is middle layer.
  • 专利号:   CN115610065-A
  • 发明人:   SUN J, GU X, ZHANG S, CHEN J, LI H
  • 专利权人:   UNIV BEIJING CHEM TECHNOLOGY
  • 国际专利分类:   B32B023/00, B32B023/08, B32B027/08, B32B027/20, B32B027/30, B32B027/36, B32B009/00, B32B009/04, C08J005/18, C08K003/34, C08K005/053, C08K005/11, C08K005/1539, C08L029/04, C08L003/02, C08L067/02, C08L091/06
  • 专利详细信息:   CN115610065-A 17 Jan 2023 B32B-027/36 202316 Chinese
  • 申请详细信息:   CN115610065-A CN11312270 25 Oct 2022
  • 优先权号:   CN11312270

▎ 摘  要

NOVELTY - Three-layer composite biodegradable film with sustained release function comprises a three-layer structure consisting of slow-release films and degradable films alternately, and the degradable film is the middle layer. USE - The biodegradable film is useful in compost bag, agricultural mulching film field, straw, plastic tableware and stirrer, aquatic and land ecological system and biological diversity. ADVANTAGE - The biodegradable film has excellent mechanical performance compared with the single-layer film, and exhibits hydrophobicity, and expands the application range of the composite film. The slow-release layer efficiently protects the degradation layer. The film has efficient synergistic effect, and can be flexibly produced at low cost. The degradation rate of the film is adjusted by adjusting the thickness of the degradable layer in the film, so that the film has slow release effect.