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Novel degradable environment-friendly material with high mechanical strength and preparation method thereof

A technology of mechanical strength and environmentally friendly materials, applied in the field of new environmentally friendly materials and their preparation, can solve problems such as poor plasticity, poor mechanical strength, and white pollution, and achieve the effects of improving processing fluidity, improving mechanical strength, and broad-spectrum sterilization

Inactive Publication Date: 2017-10-17
HEFEI DAZHUO ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some starch-based degradable materials that have emerged in recent years have solved the problem of white pollution caused by foamed plastics, these degradable materials cannot be widely used due to their poor mechanical strength and poor plasticity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The new environmentally friendly material with high mechanical strength and degradability provided in this embodiment includes the following raw materials in parts by weight: 24 parts of polyethylene resin, 17 parts of modified wheat starch , 9 parts of corn straw fiber, 4 parts of epoxidized soybean oil, 3 parts of rice husk powder, 3 parts of bamboo powder, 9 parts of inorganic filler, 1.3 parts of fungicide, 3 parts of coupling agent;

[0033] Wherein, the modification method of described modified wheat starch is specifically as follows:

[0034] (1) Add 0.3 mol / L sodium acetate buffer solution with a pH value of 6 to the wheat starch and stir to form a starch suspension;

[0035] (2) Add α-amylase solution to the starch suspension and stir to carry out enzymolysis reaction, the temperature of the enzymolysis reaction is 55°C, the time is 5h, and the percentage of the α-amylase in the weight of the starch suspension is 1.5% ;

[0036] (3) Centrifuge the starch susp...

Embodiment 2

[0051] This embodiment provides a new type of environmentally friendly material with high mechanical strength and degradability. The new type of environmentally friendly material with high mechanical strength and degradability includes the following raw materials in parts by weight: 10 parts of polyethylene resin body, 23 parts of modified wheat starch , 1 part of corn straw fiber, 5 parts of epoxidized soybean oil, 1 part of rice husk powder, 8 parts of bamboo powder, 3 parts of inorganic filler, 3.2 parts of fungicide, 1 part of coupling agent;

[0052] Wherein, the modification method of described modified wheat starch is specifically as follows:

[0053] (1) Add 0.3 mol / L sodium acetate buffer solution with a pH value of 5 to the wheat starch and stir to form a starch suspension;

[0054] (2) Add α-amylase solution to the starch suspension and stir to carry out enzymolysis reaction, the temperature of the enzymolysis reaction is 55°C, the time is 5h, and the percentage of ...

Embodiment 3

[0069] This embodiment provides a new type of environmentally friendly material with high mechanical strength and degradability. The new type of environmentally friendly material with high mechanical strength and degradability includes the following raw materials in parts by weight: 13 parts of polyethylene resin body, 19 parts of modified wheat starch , 4 parts of corn straw fiber, 4 parts of epoxidized soybean oil, 2 parts of rice husk powder, 5 parts of bamboo powder, 7 parts of inorganic filler, 1.8 parts of fungicide, 2 parts of coupling agent;

[0070] Wherein, the modification method of described modified wheat starch is specifically as follows:

[0071] (1) Add 0.3 mol / L sodium acetate buffer solution with a pH value of 5 to the wheat starch and stir to form a starch suspension;

[0072] (2) Add α-amylase solution to the starch suspension and stir to carry out enzymolysis reaction. The temperature of the enzymolysis reaction is 52°C, and the time is 6h. The percentage ...

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Abstract

The invention belongs to the technical field of environment-friendly materials, and provides a novel degradable environment-friendly material with high mechanical strength and a preparation method thereof. The degradable novel environment-friendly material with high mechanical strength contains the following raw materials in parts by weight: 10-24 parts of polyethylene resin, 17-23 parts of modified wheat starch, 1-9 parts of corn straw fiber, 4-5 parts of epoxidized soybean oil, 1-3 parts of rice husk powder, 3-8 parts of bamboo powder, 3-9 parts of inorganic filler, 1.3-3.2 parts of bactericide, and 1-3 parts of coupling agent. The formula of the environment-friendly material is adjusted based on the formula of the traditional disposable foamed plastic, the consumption of polyvinyl resinite can be decreased, and the modified wheat starch, corn stalk fibers, epoxy soybean oil, paddy rice husk powder, bamboo powder, inorganic fillers, bactericide and coupling agent ingredients are increased. The environment-friendly material is non-toxic and harmless, as well as pollution-free, the 90-day biodegradation rate is more than 92%, the cost is low, and the practical and popularization values are achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection materials, and in particular relates to a novel environmental protection material with high mechanical strength and degradability and a preparation method thereof. Background technique [0002] Polymer materials, also known as polymer materials, are materials composed of polymer compounds as the matrix and other additives (auxiliary agents). According to the classification of material application functions, polymer materials are divided into three categories: general polymer materials, special polymer materials and functional polymer materials. [0003] Foamed tableware, that is, disposable foamed plastic tableware, refers to polystyrene resin as raw material, which is heated and melted at high temperature in an extruder, then added with a foaming agent to extrude the sheet, and the sheet is rolled and ventilated. Place it in a humid environment for health preservation and then p...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L97/02C08L91/00C08L3/02C08K3/36C08K5/54C08K5/3492C08K13/04C08K5/10C08K7/26C08B30/12
CPCC08L23/06C08B30/12C08L3/02C08L2201/06C08L2205/025C08L2205/035C08L2205/16C08L97/02C08L91/00C08K3/36C08K5/54C08K5/34924C08K13/04C08K5/10C08K7/26
Inventor 杨自芬
Owner HEFEI DAZHUO ELECTRIC POWER CO LTD
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