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Degradable multifunctional protective film

A protective film and multi-functional technology, applied in the field of degradable multi-functional protective film, can solve the problems of solid waste environmental pollution, health hazards of construction workers, residues, etc., to increase the difficulty of processing, wide application range, and good film-forming properties Effect

Active Publication Date: 2016-02-17
SHANGHAI LICHANG ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1. Poor stability, and various quality problems are likely to occur during storage, transportation and construction; 2. It cannot biodegrade itself, and the solid waste formed will pollute the environment; There will be a small amount of residues in the product that are harmful to the human body, causing harm to the health of construction workers
[0007] The degradable multi-functional protective film is an innovative material. At present, no similar products have been produced and applied in China, and it is at the leading level in the same industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Composition (mass percentage) of the present invention: 50.0% of deionized water, 45.0% of membrane solution, 0.5% of xanthan gum, 3.4% of polypropylene glycol, 1.0% of triacetin, and 0.1% of calcium propionate.

Embodiment 2

[0026] Composition of the present invention (mass percentage): 42.3% of deionized water, 50.0% of film liquid, 1.0% of xanthan gum, 0.1% of sodium carboxymethyl cellulose, 5.0% of polypropylene glycol, 1.5% of glyceryl triacetate, 0.1% of calcium propionate %.

Embodiment 3

[0028] Composition of the present invention (mass percentage): 42.7% of deionized water, 50.5% of film liquid, 1.0% of xanthan gum, 0.1% of sodium carboxymethyl cellulose, 4.0% of polypropylene glycol, 1.5% of glyceryl triacetate, 0.2% of calcium propionate %.

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PUM

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Abstract

The invention provides a degradable multifunctional protective film which is composed of a biodegradable sodium alginate-chitosan emulsion, polyvinyl alcohol and related assistant components. The preparation process of the protective film comprises the following steps: preparation of the sodium alginate-chitosan blend emulsion, blend modification of the emulsion and polyvinyl alcohol, and compounding to obtain the film. The main raw material (sodium alginate-chitosan blend emulsion) is subjected to blend modification and compounded into the film; and thus, the film has the characteristics of favorable film-forming property, favorable toughness and wide application range.

Description

Technical field: [0001] The research content of the present invention is mainly to provide a degradable multifunctional protective film and its preparation method, and to realize the use of the product in the cleaning and dustproofing of the painting workshop and the temporary protection of the paint film. [0002] The invention is a degradable multifunctional protective film composed of biodegradable sodium alginate-chitosan emulsion, polyvinyl alcohol and related auxiliary components. The preparation process of the protective film includes multiple steps of preparing the blended emulsion of sodium alginate and chitosan, blending the emulsion with polyvinyl alcohol for modification, and compounding the film. The main raw material of the present invention-sodium alginate-chitosan blended emulsion, is modified by blending and re-formulated into a film, so that the film has the characteristics of good film-forming property, good toughness and wide application range. During the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D129/04C09D105/08C09D105/04C09D5/08
Inventor 高素萍谢爱军芦洪涛石昌敏牛曼
Owner SHANGHAI LICHANG ENVIRONMENTAL ENG