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Antibacterial mildew-proof degradable plastic and preparation method thereof

A technology for degrading plastics, antibacterial and anti-mildew, applied in the field of plastic processing, can solve the problems of poor anti-bacterial and anti-mildew effect, inability to balance biodegradability and mechanical properties, etc., and achieve the effect of good mechanical properties

Inactive Publication Date: 2020-12-29
卢丽容
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of existing plastic products that cannot balance biodegradability and mechanical properties and poor antibacterial and antimildew effect, and provide an antibacterial and antimildew degradable plastic and its preparation method

Method used

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  • Antibacterial mildew-proof degradable plastic and preparation method thereof

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Effect test

Embodiment 1

[0046] A preparation method of antibacterial and antifungal degradable plastics, first epoxidizing the dioxanone-ε-caprolactone copolymer to obtain an epoxidized product, and then decomposing the epoxidized product with modified nano fillers The modified polymer is obtained by ring reaction, and then the modified polymer and the modified collagen are mixed, melt-extruded and cast, and the post-treatment is to obtain the antibacterial and mildew-proof degradable plastic; wherein the modified nano filler It is prepared by the following method:

[0047] (A) Ammonium molybdate, selenium powder, and zinc powder are used as raw materials to make zinc-doped molybdenum selenide nanospheres through hydrothermal reaction;

[0048] (B) modifying the zinc-doped molybdenum selenide nanospheres with N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain modified nanospheres;

[0049] (C) finally dissolving polyhexamethylene guanidine phosphate in water, then adding modified nanosphe...

Embodiment 2

[0069] A preparation method of antibacterial and antifungal degradable plastics, first epoxidizing the dioxanone-ε-caprolactone copolymer to obtain an epoxidized product, and then decomposing the epoxidized product with modified nano fillers The modified polymer is obtained by ring reaction, and then the modified polymer and the modified collagen are mixed, melt-extruded and cast, and the post-treatment is to obtain the antibacterial and mildew-proof degradable plastic; wherein the modified nano filler It is prepared by the following method:

[0070] (A) Ammonium molybdate, selenium powder, and zinc powder are used as raw materials to make zinc-doped molybdenum selenide nanospheres through hydrothermal reaction;

[0071] (B) modifying the zinc-doped molybdenum selenide nanospheres with N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain modified nanospheres;

[0072] (C) finally dissolving polyhexamethylene guanidine phosphate in water, then adding modified nanosphe...

Embodiment 3

[0092] A preparation method of antibacterial and antifungal degradable plastics, first epoxidizing the dioxanone-ε-caprolactone copolymer to obtain an epoxidized product, and then decomposing the epoxidized product with modified nano fillers The modified polymer is obtained by ring reaction, and then the modified polymer and the modified collagen are mixed, melt-extruded and cast, and the post-treatment is to obtain the antibacterial and mildew-proof degradable plastic; wherein the modified nano filler It is prepared by the following method:

[0093] (A) Ammonium molybdate, selenium powder, and zinc powder are used as raw materials to make zinc-doped molybdenum selenide nanospheres through hydrothermal reaction;

[0094] (B) modifying the zinc-doped molybdenum selenide nanospheres with N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain modified nanospheres;

[0095] (C) finally dissolving polyhexamethylene guanidine phosphate in water, then adding modified nanosphe...

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Abstract

The invention belongs to the technical field of plastic processing, and particularly relates to antibacterial mildew-proof degradable plastic and a preparation method thereof. The preparation method includes the steps that firstly, p-dioxanone-epsilon-caprolactone copolymer is subjected to an epoxidation reaction to obtain an epoxidation product, and then the epoxidation product and modified nanofiller are subjected to a ring-opening reaction to obtain a modified polymer; the modified polymer and the modified collagen are mixed, melted, extruded, cast and post-treated to obtain the antibacterial mildew-proof degradable plastic, the antibacterial mildew-proof degradable plastic is biodegradable and good in mechanical property, the biodegradability and the mechanical property of the plasticproduct are both considered, and the antibacterial mildew-proof degradable plastic has a good antibacterial mildew-proof effect.

Description

technical field [0001] The invention belongs to the technical field of plastic processing. More specifically, it relates to an antibacterial and antifungal degradable plastic and a preparation method thereof. Background technique [0002] In daily production and life, people have a great demand for plastic products, especially film products. Common plastic products are mostly made of polyvinyl chloride raw materials, which are difficult to degrade and have poor molding and processing performance. Pigments, plasticizers, anti-aging agents and other additives need to be added during processing, and these chemicals are toxic. It has brought great harm to humans and the environment. With the improvement of people's awareness of environmental protection, biodegradable plastics have entered people's sight. Biodegradable plastics contain active groups such as hydroxyl groups, ester groups, and carboxyl groups that are easily decomposed by microorganisms. When placed in a natural ...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L89/00C08L3/10C08K9/06C08K9/04C08K7/18C08G63/91C08G63/664
CPCC08G63/664C08G63/912C08K2201/011C08L67/04C08L2201/06C08L2205/03C08L89/00C08L3/10C08K9/06C08K9/08C08K7/18
Inventor 卢丽容
Owner 卢丽容
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