A kind of high-strength antibacterial plastic and its preparation method

An antibacterial plastic, high-strength technology, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of low mechanical strength and short-term antibacterial effect of antibacterial plastics, and achieve high-efficiency sterilization and antibacterial Bacterial performance, excellent antibacterial performance, high strength effect

Active Publication Date: 2021-11-19
广东特普爱高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing antibacterial plastics add antibacterial agents in various ways to increase the antibacterial effect of the plastics, which has achieved a certain effect; but most of the antibacterial effects are relatively short-lived, and many antibacterial plastics still have the problem of low mechanical strength

Method used

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  • A kind of high-strength antibacterial plastic and its preparation method

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Comparison scheme
Effect test

Embodiment 1

[0028] A high-strength antibacterial plastic comprises the following raw materials, in parts by weight, 36 parts of polyvinyl chloride, 25 parts of filler, 16 parts of modifier, 5 parts of antibacterial agent, 1 part of coloring agent, and 0.7 part of lubricant.

[0029] A preparation method for high-strength antibacterial plastics, comprising the following steps;

[0030] (1) Disperse tetrabutyl titanate in an aqueous solution and react for 2 minutes; add hydrogen peroxide and lithium hydroxide solution, stir, heat up to 100°C, react for 1 hour, and filter to obtain substance A; anneal the substance A, and add acetic acid solution until the pH is 6.8, washed, and dried; add nitric acid solution, heat up to 215°C, and react for 6 hours to obtain titanium dioxide nanowires; dissolve titanium dioxide nanowires in absolute ethanol, stir, heat up to 90°C, and add nano silver Particles and 3-aminopropyltrimethoxysilane are stirred to obtain an antibacterial agent;

[0031] (2) Pre...

Embodiment 2

[0035] A high-strength antibacterial plastic comprises the following raw materials in parts by weight: 42 parts of polyvinyl chloride, 27 parts of filler, 18 parts of modifier, 5 parts of antibacterial agent, 3 parts of coloring agent, and 0.8 part of lubricant.

[0036] A preparation method for high-strength antibacterial plastics, comprising the following steps;

[0037] (1) Disperse tetrabutyl titanate in aqueous solution, react for 2-8min; add hydrogen peroxide and lithium hydroxide solution, stir, heat up to 107°C, react for 1.5h, filter to obtain substance A; anneal treatment on substance A , add acetic acid solution until the pH is 7.0, wash and dry; add nitric acid solution, heat up to 220°C, and react for 6.5h to obtain titanium dioxide nanowires; dissolve titanium dioxide nanowires in absolute ethanol, stir, and heat up to 97°C , adding nano-silver particles and vinyltrimethoxysilane, stirring to obtain an antibacterial agent;

[0038] (2) Prepare modifier; mix diet...

Embodiment 3

[0042] A high-strength antibacterial plastic comprises the following raw materials, in parts by weight, 45 parts of polyvinyl chloride, 26 parts of filler, 19 parts of modifier, 7 parts of antibacterial agent, 2 parts of colorant, and 1.5 parts of lubricant.

[0043] A preparation method for high-strength antibacterial plastics, comprising the following steps;

[0044] (1) Disperse tetrabutyl titanate in an aqueous solution and react for 8 minutes; add hydrogen peroxide and lithium hydroxide solution, stir, heat up to 110°C, react for 2 hours, and filter to obtain substance A; anneal the substance A, add acetic acid solution until the pH is 7.2, washed, and dried; add nitric acid solution, heat up to 225°C, and react for 7 hours to obtain titanium dioxide nanowires; dissolve titanium dioxide nanowires in absolute ethanol, stir, heat up to 100°C, and add nano silver Particles and 3-aminopropyltrimethoxysilane are stirred to obtain an antibacterial agent;

[0045] (2) Prepare m...

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Abstract

The invention discloses a high-strength antibacterial plastic and a preparation method thereof. The high-strength antibacterial plastic includes the following raw materials, by weight, 36-45 parts of polyvinyl chloride, 25-32 parts of filler, 14-19 parts of modifier, 3-7 parts of antibacterial agent, 1-5 parts of coloring agent, Lubricant 0.7-1.5 parts. The present invention selects high-strength materials such as graphene and carbon nanotubes as fillers, and reacts with tetrabutyl titanate and nano-silver particles as main raw materials to form a titanium dioxide nanowire antibacterial agent coated with nano-silver particles. The synergistic effect of particles and titanium dioxide nanowires can endow plastics with high-efficiency bactericidal and antibacterial properties; and a modifier is prepared with epoxy soybean oil as the main raw material. Compatibility and adhesion between partitions; the polyvinyl chloride plastic prepared by the invention has the characteristics of high strength and excellent antibacterial performance, and can be widely used.

Description

technical field [0001] The invention relates to the technical field of plastic synthesis technology, in particular to a high-strength antibacterial plastic and a preparation method thereof. Background technique [0002] Plastic is a polymer compound made of resin monomer as raw material through addition polymerization or polycondensation reaction. It is commonly known as plastic. It can freely change its composition, color, shape, and style. Lubricants, colorants and other additives. Widely used in plastic products such as cosmetic packaging boxes, toys, electrical casings, daily-use plastic products, industrial containers, ultra-thin products, packaging bags, woven bags, textile fibers and other plastic products; involving all aspects of human activities, giving Bring great convenience to people's life. In the past, people mainly pursued the beauty brought by the color and shape of plastic products. In recent years, people have gradually paid attention to health issues, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/06C08L27/06C08L91/00C08K3/34C09D5/14
CPCC08J7/06C08J2327/06C08L27/06C09D5/14C08L91/00C08K3/34
Inventor 王仁浒
Owner 广东特普爱高分子材料有限公司
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