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Degradable foamed plastic and preparation method thereof

A foamed plastic and foam stabilizer technology, applied in the field of composite materials, can solve the problems of long degradation cycle and incomplete decomposition of components, and achieve the effects of short degradation cycle, simple and easy preparation process, and high degradation rate.

Active Publication Date: 2015-01-21
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another effective treatment method is to use degradable foam plastics, but it still has defects such as incomplete decomposition and long degradation cycle.

Method used

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  • Degradable foamed plastic and preparation method thereof
  • Degradable foamed plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A degradable foamed plastic, the components and the mass fraction of each component are as follows: 60-80 parts of polylactic acid, 20-30 parts of starch, 1.2-3.6 parts of lysine diisocyanate, 5-15 parts of polycaprolactone, 1~6 parts of trimethylolpropane, 1~3 parts of tetrabutyl titanate, 1~5 parts of polyvinyl ester, 1~3 parts of maleic anhydride, 3~8 parts of glycerol, plasticizer triglyceride 2~5 parts, antioxidant 1010 1~3 parts, foam stabilizer L-580 2~5 parts.

[0017] Mix polycaprolactone, polylactic acid and starch evenly, stir, then add maleic anhydride, lysine diisocyanate, trimethylolpropane, tetrabutyl titanate, polyvinyl ester and glycerin, stir for 30 minutes , add the remaining components, put it in the oven for aging, and take it out after 20 minutes to get the finished product.

Embodiment 2

[0019] A degradable foamed plastic, the components and the mass fraction of each component are as follows: 60-80 parts of polylactic acid, 20-30 parts of starch, 1.2-3.6 parts of lysine diisocyanate, 5-15 parts of polycaprolactone, 1~6 parts of trimethylolpropane, 1~3 parts of tetrabutyl titanate, 1~5 parts of polyvinyl ester, 1~3 parts of maleic anhydride, 3~8 parts of glycerol, plasticizer triglyceride 2~5 parts, antioxidant 1010 1~3 parts, foam stabilizer L-580 2~5 parts.

[0020] Mix polycaprolactone, polylactic acid and starch evenly, stir, then add maleic anhydride, lysine diisocyanate, trimethylolpropane, tetrabutyl titanate, polyvinyl ester and glycerin, stir for 30 minutes , add the remaining components, put it in the oven for aging, and take it out after 20 minutes to get the finished product.

Embodiment 3

[0022] A degradable foamed plastic, the components and the mass fraction of each component are as follows: 60-80 parts of polylactic acid, 20-30 parts of starch, 1.2-3.6 parts of lysine diisocyanate, 5-15 parts of polycaprolactone, 1~6 parts of trimethylolpropane, 1~3 parts of tetrabutyl titanate, 1~5 parts of polyvinyl ester, 1~3 parts of maleic anhydride, 3~8 parts of glycerol, plasticizer triglyceride 2~5 parts, antioxidant 1010 1~3 parts, foam stabilizer L-580 2~5 parts.

[0023] Mix polycaprolactone, polylactic acid and starch evenly, stir, then add maleic anhydride, lysine diisocyanate, trimethylolpropane, tetrabutyl titanate, polyvinyl ester and glycerin, stir for 30 minutes , add the remaining components, put it in the oven for aging, and take it out after 20 minutes to get the finished product.

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PUM

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Abstract

The invention discloses degradable foamed plastic and a preparation method thereof. The degradable foamed plastic consists of the following components in parts by mass: 60-80 parts of polylactic acid, 20-30 parts of starch, 1.2-3.6 parts of lysine diisocyanate, 5-15 parts of polycaprolactone, 1-6 parts of trimethylolpropane, 1-3 parts of tetrabutyl titanate, 1-5 parts of polyvinyl ester, 1-3 parts of maleic anhydride, 3-8 parts of glycerol, 2-5 parts of a plasticizer, 1-3 parts of an antioxidant and 2-5 parts of a foam stabilizer. The preparation method of the degradable foamed plastic comprises the following steps: uniformly mixing polycaprolactone, polylactic acid and starch, stirring, then, adding maleic anhydride, lysine diisocyanate, trimethylolpropane, tetrabutyl titanate, the polyvinyl ester and glycerol to mix and stir for 20-40 minutes, adding the rest of the components, putting the mixture into an oven to cure, and taking out the mixture after 20 minutes to obtain a finished product degradable foamed plastic. The preparation process is simple and easy to implement, and the prepared foamed plastic is high in degradation rate and short in degradation period.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a degradable foamed plastic and a preparation method thereof. Background technique [0002] Foam plastic refers to a light polymer material in which gas is uniformly dispersed in a solid polymer to form numerous cells, so foam plastic can also be said to be a composite material filled with gas. Different plastic materials and different preparation methods make the obtained foams have different structures and performance characteristics, so there are many types of foams, which are usually classified into: according to the cell structure: open-cell foams, closed-cell foams Plastic, semi-open cell or semi-closed cell foam; according to the degree of softness and hardness, it can be divided into: soft foam, rigid foam and semi-rigid foam. According to the strength of the foam body, it is divided into ordinary foam plastics and structural foam plastics; ac...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L3/02C08L75/04C08K5/00C08K5/17C08K5/21C08K5/1539C08G18/78C08G18/32
Inventor 翟红波杨振枢韦洪屹
Owner SUZHOU POLYMER NEW MATERIALS TECH
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