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High-strength easily-degradable antibacterial environment-friendly polylactic acid material

A polylactic acid material and high-strength technology, applied in the field of toys, can solve the problems of low strength and poor antibacterial effect, and achieve the effect of easy degradation of strength, good antibacterial effect and high strength

Inactive Publication Date: 2019-09-10
王新华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the technical problems of poor antibacterial effect and low strength of existing polylactic acid children's toy products, the present invention proposes a high-strength, easily degradable antibacterial and environmentally friendly polylactic acid material

Method used

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  • High-strength easily-degradable antibacterial environment-friendly polylactic acid material

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0022] refer to figure 1 , a high-strength and easily degradable antibacterial and environmentally friendly polylactic acid material, including the following components: 10-20 parts of sisal fiber, 5-10 parts of crosslinking agent, 1-3 parts of surfactant, 1-2 parts of leveling agent, 0.5-1.5 parts of antioxidant, 0.01-0.02 parts of silver ion powder, 3-5 parts of chitosan, plasticizing solution, and the rest is polylactic acid powder;

[0023] The preparation method of the plasticizing liquid is: polyvinyl alcohol with a concentration of 2.5%, lactic acid with a concentration of 40%, glycerin with a concentration of 2%, surfactant, urea with a concentration of 5%, a...

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Abstract

The invention belongs to the technical field of toys and in particular discloses a high-strength easily-degradable antibacterial environment-friendly polylactic acid material which comprises 10-20 parts of a sisal fiber, 5-10 parts of a crosslinking agent, 1-3 parts of a surfactant, 1-2 parts of a leveling agent, 0.5-1.5 parts of an antioxidant, 0.01-0.02 part of silver ion powder, 3-5 parts of chitosan, a plastifying liquid, and the balance of polylactic acid powder. A preparation method of the material comprises the following steps: I, preparing an antibacterial fiber from the sisal fiber and the chitosan; II, preparing an antibacterial polylactic acid base material from the polylactic acid powder and the silver ion powder; III, plastifying the antibacterial polylactic acid base material, and conducting crushing and drying; and IV, mixing the antibacterial fiber, the plastified antibacterial polylactic acid base material powder, the crosslinking agent, the surfactant, the leveling agent and the antioxidant, so as to obtain high-strength antibacterial polylactic acid. As the sisal fiber is used, and the sisal fiber and the chitosan are prepared into the antibacterial fiber, the high-strength easily-degradable antibacterial environment-friendly polylactic acid material has effects of being high in strength and easy to degrade.

Description

technical field [0001] The invention relates to the technical field of toys, in particular to a high-strength, easily degradable, antibacterial and environment-friendly polylactic acid material. Background technique [0002] Polylactic acid, the molecular formula is H-[OCHCH3CO]n-OH, which has excellent thermal stability. The processing temperature is 170-230°C, it has good solvent resistance, and can be processed in various ways. Such as extrusion, spinning, biaxial stretching and injection blow molding. In addition to being biodegradable, products made of polylactic acid have good biocompatibility, gloss, transparency, hand feeling and heat resistance. Some polylactic acid products also have certain antibacterial properties, flame retardancy and UV resistance, so they are widely used. It can be used as packaging materials, fibers and nonwovens, etc. It is mainly used in the production of underwear and outerwear in the clothing industry, construction, agriculture, forest...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L97/02C08L5/08C08K3/015
CPCC08L67/04C08L2201/06C08L2205/035C08L2205/16C08L97/02C08L5/08C08K3/015
Inventor 王新华
Owner 王新华