A high barrier degradable film and preparation method thereof
Through the combination of inorganic powder and organic reagents, a high-barrier degradable film is prepared by using liquid-phase glass and melt blending and hot rolling calendering processes, which solves the problem of poor barrier properties of existing films, achieves high barrier and versatility, and is suitable for food packaging.
CN116769288BActive Publication Date: 2025-03-21FOSHAN QINGYUE NEW MATERIAL TECH CO LTD +1
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Patent Information
- Application Number
- CN202310514399.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-08
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2043-05-08
AI Technical Summary
Technical Problem
The existing biodegradable films have poor barrier properties in food packaging and cannot meet the high barrier requirements of high-value food packaging. At the same time, they lack versatility and environmentally friendly degradability.
Method used
Using a combination of inorganic powder, organic reagents, coupling agents and degraded plastic particles, a high barrier degradable film filled with nano-thin layer of inorganic powder is prepared through liquid phase glass and melt blending and hot rolling calendering processes.
Benefits of technology
It has achieved the improvement of high barrier performance, while also having significant degradability and versatility, suitable for food packaging and extended shelf life.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a high barrier degradable film and a preparation method thereof, which comprises inorganic powder, organic reagent, coupling agent and degradable plastic particles, wherein the inorganic powder is a sheet structure; the degradable plastic is a mixture of one or two of polybutylene adipate / terephthalate and polymethyl ethylene carbonate. The present application adopts liquid glass and melt blending and hot roller calendaring to prepare nano-thin inorganic thin layer inorganic powder directional arrangement filling, and liquid phase peeling adopts organic ultrasonic intercalation + centrifugal mechanical peeling non-destructive physical method, and the obtained nano-thin inorganic material sheet has the advantages of small thickness, large area and few defects, and a smaller composite amount can obtain a better stacking and paving effect, which is beneficial to improve the barrier performance of the film; in addition, the overall process of the present application is simple, easy to operate, and low in cost. While having excellent barrier performance, it also has significant degradable performance and is an environmentally friendly material.
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