Natural degradable packaging material and preparation method thereof

Through a multi-step preparation method, the fiber raw materials treated with enzymatic and ultrasonic crushing are used, combined with modified functional fillers, to form hyperbranched polysiloxane composite modified fillers, which solves the problem of insufficient performance of existing natural degradable and antibacterial food packaging materials, and achieves higher mechanical properties, barrier properties and stability in high temperature and high humidity environments.

CN119663683AInactive Publication Date: 2025-03-21SHANDONG RUNJIA PACKAGING CO LTD
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Patent Information

Application Number
CN202510191944.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-03-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The antibacterial properties, food preservation properties and oil absorption properties of existing natural degradable antibacterial food packaging materials need to be further improved. At the same time, the stability in high-temperature and high-humidity environments is poor, resulting in rapid decline in performance.

Method used

A natural degradable packaging material preparation method is adopted, including raw material pretreatment, functional filler modification, low temperature treatment, paper-forming treatment and coating treatment. This method uses enzymatic decomposition and ultrasonic crushing treatment of fiber raw materials such as wheat straw, corn leaves, bamboo leaves, mangosteen husks, etc., combined with the modification of silane coupling agent and nanocellulose to form hyperbranched polysiloxane composite modified filler to improve the fiber structure and filler distribution, and improve the mechanical properties and barrier properties of the packaging materials.

Benefits of technology

It effectively improves the mechanical properties, oxygen resistance, moisture resistance and oil resistance of packaging materials, and maintains long-term stability in high-temperature and high-humidity environments, significantly improving the overall performance of packaging materials.

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Abstract

The invention provides a natural degradable packaging material and a preparation method thereof, and belongs to the field of packaging materials. The preparation method of the natural degradable packaging material comprises the following steps: raw material pretreatment, functional filler modification, low-temperature treatment, finished paper treatment and coating treatment. According to the natural degradable packaging material and the preparation method thereof, the problem that the bonding performance of the packaging material and functional auxiliary components is poor can be effectively solved, and the mechanical performance, the oxygen barrier performance, the moisture barrier performance and the oil-proof performance of the packaging material are effectively improved; the stability of the packaging material in a high-temperature and high-humidity environment is further improved, and good performance can be kept for a long time.
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