| abstract |
The invention belongs to the technical field of bio-based degradation, and particularly relates to a bio-based controllable degradation stretch film which comprises a surface layer, a middle layer and an inner layer; the surface layer comprises a surface resin layer and a surface additive layer, wherein the surface resin layer is quadruple controllable degradation (SCSZ) resin, and the surface additive layer is a metal ion oxidation (JSZJ) additive; the middle layer comprises a middle layer resin layer and a middle layer additive layer, the middle layer additive layer is positioned below the middle layer resin layer, the middle layer resin layer is modified random copolyester (SHQ-MBAT) resin, and the middle layer additive layer is a plant cellulose (XWZJ) additive; the inner layer comprises an inner layer resin layer and an inner layer additive layer, the inner layer additive layer is positioned below the inner layer resin layer, the inner layer resin layer is modified polybutylene succinate (SHQ-MBS) resin, and the inner layer additive layer is a triple controllable degradation (SKZJ) additive. |