Processing method of fully-degradable resin

A processing method and a fully degradable technology, applied in fiber types, textiles and papermaking, fiber treatment, etc., to achieve high tensile strength performance, strong environmental protection, and low cost effects

Inactive Publication Date: 2019-07-02
安庆市泽烨新材料技术推广服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although degradable plastic materials are already being researched in China, most of them are extracted from petroleum. With the consumption of petroleum and the non-renewability of resources, there is an increasing need for alternative biodegradable plastic products. to replace traditional plastic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of processing method of fully degradable resin, it comprises the following steps:

[0038] 1) Grinding the dried rice straw and rice husk into rice straw powder;

[0039] 2) fully mix the following raw materials by weight: step 1) 80-100 parts of rice straw powder obtained, 50-100 parts of high molecular weight polylactic acid, 20-40 parts of low molecular weight polylactic acid, 10-30 parts of biodegradation aids, 8-16 parts of reinforcing fiber, 0.3-1 part of silane coupling agent, 0.05-0.1 part of heat stabilizer, 0.03-0.06 part of plasticizer;

[0040] 3) Mix the mixture obtained in step 2) with the calcium nitrate solution, place the mixed reaction at 80-100 degrees Celsius for 10-20 minutes, and take the precipitate A;

[0041] 4) Add sodium hydroxide solution to the precipitate A, place it at 60-70 degrees Celsius and mix for 30-60 minutes, then take the precipitate B;

[0042] 5) Add dimethylformamide and maleic anhydride to the precipitate B, mix and r...

Embodiment 2

[0045] A kind of processing method of fully degradable resin, it comprises the following steps:

[0046] 1) Grinding the dried rice straw and rice husk into rice straw powder;

[0047] 2) Fully mix the following raw materials by weight: 100 parts of rice straw powder obtained in step 1), 50 parts of high molecular weight polylactic acid, 20 parts of low molecular weight polylactic acid, 30 parts of biodegradation aids, 16 parts of reinforcing fibers, silane coupling 1 part of agent, 0.1 part of heat stabilizer, 0.06 part of plasticizer;

[0048] 3) Mix the mixture obtained in step 2) with the calcium nitrate solution, place the mixed reaction at 80 degrees Celsius for 20 minutes, and take the precipitate A;

[0049] 4) Add sodium hydroxide solution to the precipitate A, place it at 70 degrees Celsius and mix for 30 minutes, then take the precipitate B;

[0050] 5) Add dimethylformamide and maleic anhydride to the precipitate B, mix and react at 100 degrees Celsius for 4 hour...

Embodiment 3

[0053] A kind of processing method of fully degradable resin, it comprises the following steps:

[0054] 1) Grinding the dried rice straw and rice husk into rice straw powder;

[0055] 2) Fully mix the following raw materials by weight: 80 parts of rice straw powder obtained in step 1, 100 parts of high molecular weight polylactic acid, 40 parts of low molecular weight polylactic acid, 10 parts of biodegradation aids, 8 parts of reinforcing fibers, silane coupling 0.3 parts of agent, 0.05 parts of heat stabilizer, 0.03 parts of plasticizer;

[0056] 3) Mix the mixture obtained in step 2) with the calcium nitrate solution, place the mixed reaction at 100 degrees Celsius for 10 minutes, and take the precipitate A;

[0057] 4) Add sodium hydroxide solution to the precipitate A, place it at 60 degrees Celsius and mix for 60 minutes, then take the precipitate B;

[0058] 5) Add dimethylformamide and maleic anhydride to the precipitate B, mix and react at 80 degrees Celsius for 8 ...

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Abstract

The invention relates to the technical field of new materials, especially to a processing method of fully-degradable resin. The processing method comprises the following steps: grinding rice straw andrice husk to obtain straw powder, mixing the straw powder with high molecular weight polylactic acid, low molecular weight polylactic acid, a biodegradation additive, reinforced fibers, a silane coupling agent, a heat stabilizer, a plasticizer and a calcium nitrate solution and reacting to obtain a precipitate A; adding a sodium hydroxide solution to obtain a precipitate B; adding dimethyl formamide and maleic anhydride, and mixing to obtain a precipitate C; and mixing the precipitate C with nano-titanium dioxide, a resin material and sodium carboxymethylcellulose to obtain the fully-degradable resin. By using the rice husk and rice straw as the raw materials, the produced resin has strong environmental protection property and is low-cost. The produced fully-degradable resin has high tensile strength; and the postprocessing problem that rice straw needs to be burned or landfilled is solved.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a processing method of fully degradable resin. Background technique [0002] With the development of the plastics industry, the scope of application of plastics is becoming wider and wider, and the amount of use is increasing. Since most plastics are non-degradable materials, while consuming a large amount of petroleum resources, plastic waste is causing more and more damage to our daily environment. The more serious the pollution hazard. [0003] Although degradable plastic materials are already being researched in China, most of them are extracted from petroleum. With the consumption of petroleum and the non-renewability of resources, there is an increasing need for alternative biodegradable plastic products. to replace traditional plastics. [0004] my country is the largest rice-growing country in the world. As a by-product of rice processing, the annual output of ric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L97/00C08L67/04C08L33/20C08L91/00C08K13/04C08K7/10C08K7/06C08K7/14C08K5/5419C08K5/5425C08K5/57C08K5/11C08K5/523C08K3/22C08H7/00C08G63/91D06M11/38D06M14/10D06M14/36D06M101/28D06M101/40
CPCC08G63/912C08H6/00C08K2003/2241C08K2201/011C08L67/04C08L97/00C08L97/02C08L2201/06C08L2205/025C08L2205/035C08L2205/16D06M11/38D06M14/10D06M14/36D06M2101/28D06M2101/40C08L33/20C08L91/00C08K13/04C08K7/10C08K7/06C08K7/14C08K5/5419C08K5/5425C08K5/57C08K5/11C08K5/523C08K3/22
Inventor 汪泽维
Owner 安庆市泽烨新材料技术推广服务有限公司
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