Preparation of rice hull powder/talcum powder composite reinforced starch-based degradable plastic

A technology for degrading plastics and talc, which is applied in the field of degradable material preparation, can solve the problems that have been reported and have not yet been found, such as the preparation method of rice husk powder/talc composite reinforced starch-based degradable plastics, and achieves improved degradation performance, Significant social value and economic value, easy to shape effect

Inactive Publication Date: 2017-11-14
四川鑫达企业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Up to now, no reports have been found on the preparation method of rice husk powder / talcum powder composite reinforced starch-based degradable plastics

Method used

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  • Preparation of rice hull powder/talcum powder composite reinforced starch-based degradable plastic
  • Preparation of rice hull powder/talcum powder composite reinforced starch-based degradable plastic
  • Preparation of rice hull powder/talcum powder composite reinforced starch-based degradable plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Weigh the following raw materials in parts by weight: 40 parts of starch, 15 parts of rice husk powder, 6 parts of talc, 8 parts of polyvinyl alcohol, 6 parts of plasticizer, 1.2 parts of compound additives, 4 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 30:30:30:10; the plasticizer is a triol, preferably a triol Glycerol; The coupling agent is a silane coupling agent, and the preferred silane coupling agent is silane coupling agent KH-550 (chemical name is 3-aminopropyltriethoxysilane);

[0023] (2) Add the starch, rice husk powder, talc powder, polyvinyl alcohol, plasticizer, compound additives and water weighed in step (1) into the mixer and mix uniformly to obtain a mixture;

[0024] (3) Add the mixture described in step (2) to the twin-screw extruder. The temperature of the feeding section, melting section, homogenization section and discharge section of the twin-sc...

Embodiment 2

[0028] (1) Weigh the following various raw materials in parts by weight: 50 parts of starch, 10 parts of rice husk powder, 5 parts of talcum powder, 5 parts of polyvinyl alcohol, 5 parts of plasticizer, 1 part of compound additives, 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 triol, preferably a triol Glycerol; The coupling agent is a silane coupling agent, and the preferred silane coupling agent is silane coupling agent KH-570 (chemical name is 3-methacryloxypropyltrimethoxysilane);

[0029] (2) Add the starch, rice husk powder, talc powder, polyvinyl alcohol, plasticizer, compound additives and water weighed in step (1) into the mixer and mix uniformly to obtain a mixture;

[0030] (3) Add the mixture described in step (2) to the twin-screw extruder. The temperature of the feeding section, melting section, homogenization section and discharge ...

Embodiment 3

[0034] (1) Weigh the following raw materials in parts by weight: 70 parts of starch, 20 parts of rice husk powder, 12 parts of talc, 7 parts of polyvinyl alcohol, 10 parts of plasticizer, 2.5 parts of compound additives, 5 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 30:30:30:8; the plasticizer is a glycol, preferably a glycol It is 1,2-propylene glycol; the coupling agent is a silane coupling agent, and the preferred silane coupling agent is silane coupling agent KH-550 (chemical name is 3-aminopropyltriethoxysilane);

[0035] (2) Add the starch, rice husk powder, talc powder, polyvinyl alcohol, plasticizer, compound additives and water weighed in step (1) into the mixer and mix uniformly to obtain a mixture;

[0036] (3) Add the mixture described in step (2) to the twin-screw extruder. The temperature of the feeding section, melting section, homogenization section and discharge s...

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Abstract

The invention provides a preparation method of rice hull powder / talcum powder composite reinforced starch-based degradable plastic. The preparation method comprises the following steps of I, weighing and taking starch, rice hull powder, talcum powder, polyvinyl alcohol, a plasticizer, a compound additive and water according to certain parts by weight: II, adding various weighed and taken raw materials into a mixer, and uniformly mixing, so as to obtain a mixed material; III, adding the mixed material into a double screw extruder, and extruding, so as to obtain the rice hull powder / talcum powder composite reinforced starch-based degradable plastic. The sources of the raw materials in the preparation method are wide; the preparation process is simple; the method is suitable for large-scale industrialized production. The rice hull powder / talcum powder composite reinforced starch-based degradable plastic prepared by adopting the preparation method provided by the invention has favorable mechanical performance, heat resistance and biodegradability, and has important significance in all aspects of environmental protection, resource development and the like.

Description

Technical field [0001] The invention belongs to the technical field of preparation of degradable materials, and specifically relates to a preparation method of a rice husk powder / talc powder composite reinforcement 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. The environmental pollution caused by refractory plastics has been increasingly affected by countries around the world. Attention and attention. The use of degradable plastics is a fundamental way to solve plastic pollution. In the research process of seeking degradable plastics to solve plastic waste pollution, biodegradable plastics obtained from starch as a basic raw material have been rapidly developed. Among biodegradable plastics, starch, a natural polymer material, has the advantages of wide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L97/02C08L29/04C08L23/06C08L91/06C08K13/02C08K3/34C08K5/053C08K5/09B29C47/92B29C48/92
CPCC08L3/02B29C48/92B29C2948/92704C08L2201/06C08L2201/08C08L2205/035C08L2205/16C08L97/02C08L29/04C08L23/06C08L91/06C08K13/02C08K3/34C08K5/053C08K5/09
Inventor 李生辉宫克难
Owner 四川鑫达企业集团有限公司
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