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Plastic sealing strip easy to degrade and differentiate

A plastic sealing and modification technology, which is applied in the field of plastic sealing strips, can solve the problems of poor degradability, poor environmental protection, and environmental pollution of plastic sealing strips, and achieve the effect of improving degradable performance, high mechanical properties, and good reaction effect

Inactive Publication Date: 2019-04-12
王诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing plastic sealing strips are poor in degradability, difficult to decompose, poor in environmental protection, and pollute the environment. A plastic sealing strip that is easy to degrade and decompose is now provided to solve the above problems

Method used

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Effect test

Embodiment

[0021] Embodiment: The present invention provides a plastic sealing strip that is easy to degrade and decompose, which is made of the following components in proportion by weight: 25-38 parts of polyethylene, 15-30 parts of borax, 15-32 parts of urea, 5 parts of glycerin ~12 parts, plant fiber 16~28 parts, modified starch 16~30 parts, ethanol aqueous solution 25~52 parts, dialdehyde starch 14~26 parts, polyvinyl alcohol 15~25 parts, chitosan 11~20 parts, 10-24 parts of sodium carboxymethylcellulose, 9-28 parts of acetic anhydride, 10-22 parts of sorbitol ester, 5-18 parts of formamide, 6-12 parts of cross-linking agent, some liquid paraffin;

[0022] Its concrete preparation steps are as follows:

[0023] S1: In parts by weight, prepare 16-30 parts of modified starch with 1% NaOH solution to make a modified starch solution with a concentration of 30% g / ml, and add 1-1.5 parts of polyvinyl alcohol solution as a modifier , to obtain solution A; add 0.5% span80 emulsifier in liq...

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PUM

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Abstract

The invention discloses a plastic sealing strip easy to degrade and differentiate. The plastic sealing strip is prepared from the following components in parts by weight: 25 to 38 parts of polyethylene, 15 to 30 parts of borax, 15 to 32 parts of urea, 5 to 12 parts of glycerin, 16 to 28 parts of plant fiber, 16 to 30 parts of modified starch, 25 to 52 parts of ethanol aqueous solution, 14 to 26 parts of dialdehyde starch, 15 to 25 parts of polyvinyl alcohol, 11 to 20 parts of chitosan, 10 to 24 parts of sodium carboxymethyl cellulose, 9 to 28 parts of acetic anhydride, 10 to 22 parts of sorbitol ester, 5 to 18 parts of formamide, 6 to 12 parts of cross-linking agent, and a little liquid paraffin. The modified starch prepared by polyvinyl alcohol as a cross-linking agent has good reaction effect and high mechanical properties; under a high-pressure condition, the synergistic effect of the modified starch after emulsification and the plant fiber improves the degradability of modified polyethylene; and the synergistic effect of polyvinyl alcohol, chitosan and modified polyethylene improves the degradability and water resistance of polyethylene plastic.

Description

technical field [0001] The invention relates to the technical field of sealing strip production, in particular to a plastic sealing strip which is easy to degrade and decompose. Background technique [0002] The sealing strip is a product that seals something so that it is not easy to open, and plays the roles of shock absorption, waterproof, sound insulation, heat insulation, dustproof, and fixation. Sealing strips are made of rubber, paper, metal, plastic and other materials. Since the 1980s, sealing strips have been applied to various industries such as automobiles, doors and windows, cabinets, refrigerators, and containers. According to the requirements of different industries, unique automotive sealing strips, mechanical sealing strips, and door and window sealing strips have been developed. [0003] With the development of social economy and the advancement of science and technology, people's awareness of environmental protection is getting higher and higher, and the ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L29/04C08L97/02C08L3/04C08K13/02C08K3/38C08K5/053C08K5/21
CPCC08K2003/387C08L23/06C08L2201/06C08L2205/025C08L2205/035C08L2205/16C08L29/04C08L97/02C08L3/04C08K13/02C08K3/38C08K5/053C08K5/21
Inventor 王诚
Owner 王诚
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