Preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic

A technology for degrading plastics and white carbon black, which is applied in the field of degradable material preparation, can solve the problems that the bamboo powder/silica composite reinforcing starch base has not been found, and the preparation method of degradable plastics has been reported, and achieves a rapid degradation rate , broaden the use, the effect of low price

Inactive Publication Date: 2013-07-17
SHAANXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, no reports have been found on the preparation method of bamboo powder / silica composite reinforced starch-based degradable plastics

Method used

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  • Preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic
  • Preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of present embodiment bamboo powder / white carbon black composite reinforcement starch-based degradable plastic comprises the following steps:

[0022] Step 1, take the following various raw materials by weight: 40 parts of starch, 15 parts of bamboo powder, 6 parts of white carbon black, 8 parts of polyvinyl alcohol, 6 parts of plasticizer, 1.2 parts of composite auxiliary agent, 4 parts of water; The compounding aid is prepared by mixing polyethylene wax, stearic acid, white oil and a coupling agent in a mass ratio of 30:30:30:10; the plasticizer is a trihydric alcohol, preferably a trihydric alcohol It is glycerol; the coupling agent is a silane coupling agent, and the preferred silane coupling agent is the silane coupling agent KH-550 (the chemical name is 3-aminopropyltriethoxysilane);

[0023] Step 2, adding the starch, bamboo powder, white carbon black, polyvinyl alcohol, plasticizer, composite auxiliary agent and water weighed in the step 1...

Embodiment 2

[0027] The preparation method of present embodiment bamboo powder / white carbon black composite reinforcement starch-based degradable plastic comprises the following steps:

[0028] Step 1, take the following various raw materials by weight: 50 parts of starch, 10 parts of bamboo powder, 5 parts of white carbon black, 5 parts of polyvinyl alcohol, 5 parts of plasticizer, 1 part of composite auxiliary agent, and 3 parts of water; The compound auxiliary agent is prepared by mixing polyethylene wax, stearic acid, white oil and coupling agent in a mass ratio of 28:32:27:12; the plasticizer is a trihydric alcohol, preferably a trihydric alcohol It is glycerol; the coupling agent is a silane coupling agent, and the preferred silane coupling agent is the silane coupling agent KH-570 (the chemical name is 3-methacryloxypropyltrimethoxysilane);

[0029] Step 2, adding the starch, bamboo powder, white carbon black, polyvinyl alcohol, plasticizer, composite auxiliary agent and water weigh...

Embodiment 3

[0033] The preparation method of present embodiment bamboo powder / white carbon black composite reinforcement starch-based degradable plastic comprises the following steps:

[0034] Step 1, take the following various raw materials by weight: 60 parts of starch, 12 parts of bamboo powder, 9 parts of white carbon black, 6 parts of polyvinyl alcohol, 6 parts of plasticizer, 2 parts of compound auxiliary agent, 6 parts of water; The compounding aid is prepared by mixing polyethylene wax, stearic acid, white oil and coupling agent in a mass ratio of 30:28:32:8; the plasticizer is a glycol, preferably a glycol It is ethylene glycol; the coupling agent is a silane coupling agent, and the preferred silane coupling agent is the silane coupling agent YDH-151 (the chemical name is vinyltriethoxysilane);

[0035] Step 2, adding the starch, bamboo powder, white carbon black, polyvinyl alcohol, plasticizer, composite auxiliary agent and water weighed in the step 1 into a mixer and mixing uni...

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Abstract

The invention provides a preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic. The preparation method comprises the following steps of: 1, weighing starch, bamboo powder, white carbon black, polyvinyl alcohol, a plasticizer, compound additive and water in parts by weight; 2, adding various weighed materials into a mixer and uniformly mixing to obtain a mixture; and 3, adding the mixture into a double-screw extruder to extrude to obtain the bamboo powder/white carbon black composite reinforced starch-based degradable plastic. According to the preparation method, raw materials are well-sourced, the preparation process is simple, and the preparation method is suitable for large-scale industrial production. The bamboo powder/white carbon black composite reinforced starch-based degradable plastic prepared by adopting the preparation method has favorable mechanical property, heat resistance and biodegradability and has important meanings in terms of environment protection, resource development and the like.

Description

technical field [0001] The invention belongs to the technical field of degradable material preparation, and in particular relates to a preparation method of bamboo powder / white carbon black composite reinforced starch-based degradable plastic. Background technique [0002] The rapid development of the plastic industry has brought great convenience to people's production and life, but the problem of "white pollution" caused by plastic waste is also becoming more and more serious. Attention and attention. Using degradable plastics is a fundamental way to solve plastic pollution. In the process of seeking degradable plastics to solve plastic waste pollution, biodegradable plastics based on starch have been developed rapidly. Among biodegradable plastics, starch, a natural polymer substance, has the advantages of wide sources, low price, short regeneration cycle, complete biodegradation in various environments, and no pollution to the environment. It has a good development pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L97/02C08L29/04C08L23/06C08K3/36C08K5/053C08K5/09C08K5/01
Inventor 杨晓明
Owner SHAANXI UNIV OF TECH
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