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, poo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example: The present invention provides a plastic sealing strip that is easy to degrade and differentiate, which is made of 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, and 5 parts of glycerin. ~12 parts, 16~28 parts of plant fiber, 16~30 parts of modified starch, 25~52 parts of ethanol aqueous solution, 14~26 parts of dialdehyde starch, 15~25 parts of polyvinyl alcohol, 11~20 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 crosslinking agent, and some liquid paraffin;

[0022] The specific preparation steps are as follows:

[0023] S1: According to parts by weight, 16-30 parts of modified starch are prepared with 1% NaOH solution into a modified starch solution with a concentration of 30% g / ml, and 1 to 1.5 parts of polyvinyl alcohol solution are added as modifi...

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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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