Easily degradable and environment friendly plastic and manufacturing method thereof

An environmentally friendly plastic and easy-to-degrade technology, applied in the field of biochemistry, can solve the problems of unresolved residual sludge pollution, difficulty in large-scale production, and non-degradable plastics. It achieves excellent molding performance, simple manufacturing process, good performance effect

Inactive Publication Date: 2011-10-26
JILIN LONGYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There was once a Chinese patent with the publication number CN85102687 to disclose protein plastics made from surplus sludge, but it did not solve the pollution problem of surplus sludge, and the plastics produced by its unique manufacturing process were not degradable
The Chinese patent with the publication number CN101469061 discloses the method of using activated sludge to produce biodegradable plastics. Although it can also be realized through excess sludge, the excess sludge is finally converted into biodegradable plastics - polyhydroxyalkanoate , but the process is complicated and difficult to control, and it is very difficult to mass produce

Method used

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  • Easily degradable and environment friendly plastic and manufacturing method thereof
  • Easily degradable and environment friendly plastic and manufacturing method thereof
  • Easily degradable and environment friendly plastic and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of easily degradable environmental protection plastics, it comprises the following components and the material of weight ratio is made:

[0034]

[0035] Wherein: the high-nutrition biodegradable material is mixed according to the weight ratio of 100: 1: 2 by remaining sludge granules with a water content of 8 to 15%, sodium hydroxide and plant starch, and an appropriate amount of starch is added to increase the Partitioned compatibility; the strength supplement material is mixed with natural mineral powder, natural fiber and polyvinyl alcohol in a weight ratio of 1:5:0.2, wherein the natural mineral powder is wollastonite crushed to 400-600 mesh Or pottery clay, described natural fiber is length between 0.2~hm, length / diameter ratio is between 2~10 plant source fiber; In mixture plasticizer, alkylsulfonate and ethylene glycol are according to the weight ratio of 1:1.5 Mixing; the polymer wax, calcium stearate and stearic acid in the lubricating ...

Embodiment 2

[0047] Embodiment 2: a kind of easily degradable environmental protection plastics, it comprises the following components and the material of weight ratio is made:

[0048]

[0049]

[0050] Wherein: the high-nutrition biodegradable material is mixed according to the weight ratio of 100: 1.25: 5.51 by remaining sludge powder with a moisture content of 8 to 15%, sodium hydroxide and plant starch, and an appropriate amount of starch is added to increase the Partitioned compatibility; the strength supplement material is mixed with natural mineral powder, natural fiber and polyvinyl alcohol in a weight ratio of 1:3:0.25, wherein the natural mineral powder is wollastonite crushed to 400-600 mesh Or pottery clay, the natural fiber is a plant-derived fiber with a length of 0.2 to 1 mm and a length / diameter ratio of 2 to 10; in the mixture plasticizer, alkyl sulfonate and ethylene glycol are in a weight ratio of 1:2 Mixing; the high molecular weight wax, calcium stearate and ste...

Embodiment 3

[0062] Embodiment 3: a kind of easily degradable environmental protection plastics, it comprises the following components and the material of weight ratio is made:

[0063]

[0064] Wherein: the high-nutrition biodegradable material is mixed according to the weight ratio of 100: 1.5: 8.5 by remaining sludge powder with a water content of 8 to 15%, sodium hydroxide and plant starch, and an appropriate amount of starch is added to increase the weight of each group. Partitioned compatibility; the strength supplement material is mixed with natural mineral powder, natural fiber and polyvinyl alcohol in a weight ratio of 1:4.5:0.3, wherein the natural mineral powder is wollastonite crushed to 400-600 mesh Or pottery clay, the natural fiber is a plant-derived fiber with a length of 0.2 to 1 mm and a length / diameter ratio of 2 to 10; in the mixture plasticizer, alkyl sulfonate and ethylene glycol are in a weight ratio of 1:3 Mixing; the polymer wax, calcium stearate and stearic aci...

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Abstract

The invention relates to a novel environment friendly plastic. The plastic is characterized in that: the plastic comprises a high-nutrient biodegradable material which comprises residual sludge particles, sodium hydroxide and plant starch, an intensity supplement material which comprises natural mineral powder, a natural fiber and polyvinyl alcohol, a mixture plasticizer which comprises alkyl sulfonate and glycol, a coupling agent which comprises macromolecular wax, calcium stearate and a stearic acid lubricant additive, and a polyethylene / polypropylene macromolecular synthetic material. The plastic is manufactured through the following steps: mixing and stirring above blended components; melting, extruding and granulating; and processing into products or films with various shapes through known methods such as blow molding, calendaring, vacuum molding and the like. The residual sludge after water processing can be effectively recycled, so the plastic has the advantages of safety and non-toxicity, thorough degradation in the soil moisture environment, controllable degradation time, no secondary pollution, high intensity, good plasticity and wide application scope.

Description

technical field [0001] The invention relates to the field of biochemistry, and relates to an easily degradable environmentally friendly plastic and a manufacturing method thereof. Background technique [0002] Due to the pollution and public nuisance caused by plastic waste, people have long been looking for better raw materials to replace those non-degradable plastic materials. At present, there are two main types of degradable plastics, namely biodegradable plastics and photodegradable plastics. However, photodegradable plastics need to be added with a photosensitizer, and once buried in the soil, it is almost difficult to degrade, while biodegradable plastics are mainly made of starch. Good, but its thermoplastic performance, strength and tensile properties are worse than traditional plastics, and it is difficult to meet the requirements of use. It is an effective way to make up for the defects of starch plastics by replacing starch with other substances and efficiently ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08K13/08C08K11/00C02F11/00C02F11/12B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/926B29C2948/92704B29C2948/92895Y02W10/37
Inventor 韩国顺
Owner JILIN LONGYUN CHEM IND
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