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Method for preparing degradable plastic film

A technology of plastic film and preparation steps, which is applied in the field of preparation of degradable plastic film, can solve the problems of low mechanical strength and high cost of degradable plastic, and achieve the effect of low cost, rich pectin content, and easy acquisition

Inactive Publication Date: 2018-11-20
FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem to be solved by the present invention: Aiming at the problems of high cost and low mechanical strength of currently produced degradable plastics, a preparation method of degradable plastic films is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] Chop 500g of cotton stalks, then add 5g of sodium hydroxide and 1000g of deionized water to boil for 2 hours, then let it stand for cooling, when the temperature of the solution drops to 70°C, add 10g of hydrogen peroxide, continue heating for 0.5h, and keep the temperature at 70°C ℃, then filter and wash the filter residue, and dry to obtain straw fiber; take 500g of orange peel and chop it, add 1000g of 0.1mol / L hydrochloric acid solution for cooking, stir while cooking, filter after 2h, and collect the filtrate; take 200g of the filtrate, add 1g of activated carbon, heated to 50°C, 400g of absolute ethanol was added after 30min, and after standing for 30min, the flocculated pectin was obtained and dried and crushed to obtain dry pectin; 100g of nano-silica, 1g of polyacrylamide and 400g of deionized Water, stirred at high speed for 0.5h to obtain nano-silica emulsion; 40g nano-silica emulsion, 200g straw fiber, 50g dry pectin, 50g polylactic acid, 50g polyvinyl succin...

example 2

[0033] Chop 550g of cotton stalks, then add 8g of sodium hydroxide and 1100g of deionized water to boil for 2 hours, then let it stand for cooling, when the temperature of the solution drops to 75°C, add 15g of hydrogen peroxide, continue heating for 0.5h, and keep the temperature at 75°C ℃, then filter and wash the filter residue, and dry to obtain straw fiber; take 550g of orange peel and chop it, add 1100g of 0.1mol / L hydrochloric acid solution for cooking, stir while cooking, filter after 2h, and collect the filtrate; take 250g of the filtrate, add 1g of activated carbon, heated to 55°C, 500g of absolute ethanol was added after 30min, and after standing for 30min, the flocculated pectin was obtained and dried and crushed to obtain dried pectin; 125g of nano-silica, 1.2g of polyacrylamide and 500g of Ionized water was stirred at high speed for 0.8h to obtain nano-silica emulsion; 50g nano-silica emulsion, 250g straw fiber, 65g dry pectin, 65g polylactic acid, 65g polyvinyl s...

example 3

[0035]Chop 600g of cotton stalks, then add 10g of sodium hydroxide and 1200g of deionized water to boil for 3 hours, then let it stand for cooling, when the temperature of the solution drops to 80°C, add 20g of hydrogen peroxide, continue heating for 0.5h, and keep the temperature at 80°C ℃, then filter and wash the filter residue, and dry to obtain straw fiber; take 600g of orange peel and chop it, add 1200g of 0.1mol / L hydrochloric acid solution for cooking, stir while cooking, filter after 3h, and collect the filtrate; take 300g of the filtrate, add 2g of activated carbon, heated to 60°C, 600g of absolute ethanol was added after 30min, and after standing for 30min, the flocculated pectin was obtained and dried and crushed to obtain dried pectin; 150g of nano-silicon dioxide, 1.5g of polyacrylamide and 600g of Ionized water was stirred at high speed for 1 hour to obtain nano-silica emulsion; 60g nano-silica emulsion, 300g straw fiber, 75g dry pectin, 75g polylactic acid, 75g ...

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Abstract

The invention relates to a method for preparing a degradable plastic film and belongs to the technical field of degradable materials. According to the method, cotton straw and orange peel which are very low in cost is used, meanwhile, the cellulose of the cotton straw has good degradability and biocompatibility and good mechanical properties as well, and the defect that a degradable plastic film is generally poor in mechanical property can be made up; the orange peel is rich in pectin, so that the adhesion degree of the materials can be increased, and meanwhile the mechanical strength can be improved; in addition, the pectin has stability for both heat and acids, and the defect that a common degradable material is poor in thermal resistance can be made up; the degradable plastic film provided by the invention is good in water resistance and acid resistance, has good mechanical properties when being compared with common degradable plastic films, in addition is simple in production process, degradable in production raw material and low in cost, and can be widely applied to the field of degradable plastic film preparation.

Description

technical field [0001] The invention relates to a preparation method of a degradable plastic film, belonging to the technical field of degradable materials. Background technique [0002] Plastic products have the advantages of strong stability, light weight, and low production cost, so they are deeply favored by people. In recent decades, the plastic industry has developed rapidly, and the use of a large number of plastic products, especially disposable plastic products, has brought great convenience to human life. However, due to the chemical stability of general-purpose plastics, they will exist stably in the environment for a long time after they are abandoned, causing a large amount of plastic waste to accumulate in the environment, causing serious harm to the environment, such as white pollution, agricultural white cancer And other issues. [0003] In addition to white pollution, they also have potential harm to the ecological environment. (1) Harm to agriculture: Du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L5/06C08L67/04C08L31/06C08K9/04C08K5/11C08K5/098C08K3/36C08B37/06C08J5/18C08J3/22
CPCC08B37/0048C08J3/226C08J5/18C08J2397/02C08J2405/06C08J2431/06C08J2467/04C08K3/36C08K5/098C08K5/11C08K9/08C08K2201/011
Inventor 裘友玖周立朱华
Owner FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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