PFM-nanocellulose-hydroxyapatite synergistically enhanced biodegradable material and application thereof

The biodegradable material reinforced by PFM-nanocellulose-hydroxyapatite solves the problems of insufficient toughness, low modulus and short antibacterial effect of existing materials, and achieves high strength, impact resistance and long-lasting antibacterial effect.

CN122255687APending Publication Date: 2026-06-23SHOUKANG MEDICAL SCI & TECH (SHANDONG) CO LTD
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Patent Information

Application Number
CN202610359365.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing biodegradable materials face problems such as insufficient toughness, low modulus, and short antibacterial effect when applied to the toy industry. At the same time, nanofillers are prone to agglomeration inside the matrix, leading to the deterioration of the overall performance of the material.

Method used

A biodegradable material synergistically enhanced by PFM-nanocellulose-hydroxyapatite is used. The nanocellulose paste and modified plant fiber micropowder are dispersed in situ in the liquid phase to construct a physically interwoven structure in a quaternary resin matrix. Combined with activated hydroxyapatite-supported antibacterial microcapsules, a specific processing technology is used to ensure uniform dispersion of nanocellulose and slow release of antibacterial components.

Benefits of technology

It improves the material's impact resistance and flexural modulus, and imparts long-lasting antibacterial properties, meeting the requirements for high-performance and long-lasting safe children's products.

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Abstract

The invention relates to the technical field of biodegradable toy materials, and discloses a PFM-nano cellulose-hydroxyapatite synergistically enhanced biodegradable material and an application thereof. The material is prepared from the following components: polylactic acid, poly (adipic acid) / butylene terephthalate, polypropylene carbonate, poly (butylene succinate), hydrophobic pore-preserving modified plant fiber micro powder, antibacterial microcapsules, nano cellulose paste, a grafted compatibilizer and the like. In the preparation process, quaternary resin premixing and melting are adopted, and a process of laterally injecting nano-cellulose paste and performing high-vacuum in-situ devolatilization is combined, so that a liquid medium is eliminated in real time, and in-situ dispersion of the nano-cellulose is realized. According to the scheme, a physically interlaced space reinforcing structure is constructed in a matrix, the toughness and mechanical modulus of the material are synergistically improved, long-acting bacteriostasis is achieved by means of controlled release of microcapsules, the problems of reinforcing phase agglomeration and short bacteriostasis time are solved, and the method is suitable for production of high-performance long-acting antibacterial biodegradable toys.
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