Functionalized degradable film, and preparation method and application thereof

Functionalized biodegradable films were prepared by adding 6-BA to PHBV/PBAT/TPS substrates and crosslinking with chain extender ADR4468. This solved the problems of non-degradability and uneven distribution of 6-BA in traditional plastic packaging, and enabled the application of films that achieve both fruit and vegetable preservation and environmental friendliness.

CN122103838APending Publication Date: 2026-05-29SHANGHAI OCEAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI OCEAN UNIV
Filing Date
2026-03-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional plastic packaging materials are non-degradable, leading to environmental pollution. Meanwhile, the plant growth regulator 6-BA in existing fruit and vegetable preservation technologies is unevenly distributed, has a short duration of action, and suffers from poor preservation efficiency and controllability.

Method used

Functionalized biodegradable films were prepared by using PHBV/PBAT/TPS as substrate, adding 6-BA as a growth regulator, and crosslinking with chain extender ADR4468 to achieve controlled release of 6-BA and enhance the mechanical properties and gas regulation capabilities of the film.

Benefits of technology

It significantly extends the shelf life of fruits and vegetables, maintains their quality, reduces environmental pollution, improves preservation efficiency and controllability, and possesses good mechanical properties and gas regulation capabilities.

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Abstract

The application belongs to the field of food packaging, and particularly relates to a functional degradable film and a preparation method and application thereof. The functional degradable film is formed by hot forming processing of raw materials of a mixed film base material, a chain extender and a growth regulator. The secondary amine group of the growth regulator can undergo ring-opening addition reaction with the epoxy group in the chain extender to form a stable covalent bond, thereby introducing additional crosslinking points in the polymer network. With the increase of the crosslinking density, the molecular chain connection in the film is more closely connected, and the overall structural stability of the material is enhanced. The functional degradable film has excellent water vapor barrier property and good mechanical property. When applied to fruit and vegetable packaging, it can effectively slow down water loss, inhibit chlorophyll degradation and yellowing, significantly prolong the shelf life of products, and has the functions of slow-release preservation and environmental friendliness, and has good application prospect in fruit and vegetable preservation.
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