Degradable cassava acetate starch, resin thereof, and preparation and application of degradable cassava acetate starch and resin thereof

A technology of acetate starch and cassava flour, which is applied in the field of degradable cassava acetate starch, its resin and the preparation and application of the two, can solve white pollution, hinder the comprehensive promotion and application of degradable materials, and plastic products cannot Degradation and other issues

Inactive Publication Date: 2020-12-22
绿色轻化科技发展(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the severe white pollution problem caused by the inability of plastic products to degrade, and to provide a low-cost, production The process is simple, it can widely replace plastic products, and replace expensive PLA polylactic a

Method used

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  • Degradable cassava acetate starch, resin thereof, and preparation and application of degradable cassava acetate starch and resin thereof
  • Degradable cassava acetate starch, resin thereof, and preparation and application of degradable cassava acetate starch and resin thereof

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preparation example Construction

[0127] Preferably, the preparation method of described degradable cassava acetate starch comprises the steps:

[0128] Step (1): Weigh deionized water and tapioca starch according to the formula and pour them into container 1 sequentially, and heat up and stir, the temperature is controlled within the range of 44-46°C, keep warm and stir;

[0129] Step (2): Weigh sodium hydroxide according to the formula, and dilute it with deionized water and inject it dropwise into container 1 for alkalization treatment;

[0130] Step (3): after step (2), add hydrogen peroxide and / or sodium hypochlorite dropwise to container 1 within the temperature range of 44-46° C., and continue to insulate and stir;

[0131] Step (4): After step (3) is finished, add acetic anhydride dropwise to container 1 within the temperature range of 44-46° C., and keep stirring;

[0132] Step (5): After step (4) is finished, take another acetic anhydride, add acetic anhydride dropwise to container 1 within the rang...

Embodiment 1

[0198] Tapioca acetate starch recipe:

[0199] Tapioca starch: 36%

[0200] Acetic anhydride: 7%

[0201] Sodium hydroxide: 4%

[0202] Hydrogen peroxide: 1%

[0203] Deionized water: 52%:

[0204] All the above are percentages by mass.

[0205] Degradable cassava acetate starch resin formula:

[0206] Tapioca acetate starch: 67.2%;

[0207] Plasticizer epoxy soybean oil (ESO): 28.8%;

[0208] Stabilizer dimethyl tin mercaptide (referred to as 181): 0.5%;

[0209] Degradant ethylene glycol (EG): 1.5%

[0210] Cross-linking agent dicumyl peroxide (DCP): 0.8%;

[0211] Lubricant Oleamide: 1.2%;

[0212] All the above are percentages by mass.

Embodiment 2

[0213] Embodiment 2: tapioca acetate starch formula is identical with embodiment 1, and degradable tapioca acetate starch resin formula is based on embodiment 1, and tapioca acetate starch increment is 1.5%, and plasticizer plasticizer epoxy soybean oil decreases The amount is 1.5%, and the others remain unchanged;

[0214] Tapioca acetate starch: 68.7%;

[0215] Plasticizer epoxy soybean oil (ESO): 27.3%;

[0216] Stabilizer dimethyl tin mercaptide (referred to as 181): 0.5%;

[0217] Degradant ethylene glycol (EG): 1.5%

[0218] Cross-linking agent dicumyl peroxide (DCP): 0.8%;

[0219] Lubricant Oleamide: 1.2%;

[0220] All the above are percentages by mass.

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Abstract

The embodiment of the invention discloses degradable cassava acetate starch, resin thereof, and preparation and application of the degradable cassava acetate starch and the resin, which relate to thefields of high polymer materials, thin film products, plastic products, plastic coated products, molded products, packaging materials, printing materials, electronic information industry film materials and the like. The resin comprises cassava acetate starch, polyvinyl alcohol, a plasticizer, a stabilizer, a degradation agent, a cross-linking agent and a lubricant. The degradable cassava acetate starch resin disclosed by the embodiment of the invention has good processing mechanical properties, high breaking strength and tensile strength, strong water barrier property and excellent heat resistance, the biodegradability is greater than 70%, and the degradable cassava acetate starch resin is eco-friendly, so that the problem that plastic product wastes pollute the environment is solved; earth forest resources are saved, paper is replaced for printing and packaging, expensive PLA polylactic acid is replaced, the production process is simple, the cost is low, and great significance is achieved for research and application of environment-friendly degradable materials in the new technology.

Description

technical field [0001] The invention belongs to polymer materials, and the technical and application fields relate to biomedicine, medical equipment, sanitary dressings, printing materials, electronic information industry materials, packaging materials, blown films, injection molding products, molded molding products, calendered film-forming products , cast stretched products, plastic coated products, and food packaging materials, disposable tableware, disposable straws, disposable paper cups and other materials, especially related to degradable cassava acetate starch, its resin and the preparation of the two with application. Background technique [0002] As we all know, the problem of white pollution of plastic products seriously threatens and engulfs the earth's ecological environment. The main cause of the problem is that the components of plastic products are organic hydrocarbons, such as PE polyethylene, PP polypropylene, PVC polyethylene, PS polystyrene and other poly...

Claims

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Application Information

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IPC IPC(8): C08B31/04C08L3/06C08L91/00C08K5/00C08K5/053C08K5/14C08K5/20C08K5/58C08J5/18
CPCC08B31/04C08J5/18C08J2303/06C08J2491/00C08K5/00C08K5/053C08K5/14C08K5/20C08K5/58
Inventor 吴博崇
Owner 绿色轻化科技发展(北京)有限公司
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