Novel degradable composite plastic and preparation method thereof

A composite plastic, a new type of technology, applied in textiles and papermaking, fiber treatment, plant fiber, etc., can solve the problems of human health, ozone layer destruction, groundwater pollution, etc., achieve uniform mixing, improve surface polarity, and good degradation performance effect

Inactive Publication Date: 2019-03-19
广东力美新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current plastics are mainly incinerated, buried or recycled into the same type of plastics for recycling after use, and most of them are disposed of by incineration or burial. Incineration not only pollutes the environment, but also aggravates the greenhouse effect. , so that the ozone layer is destroyed, which in turn poses a threat to human health; and the way of burial will not only pollute the groundwater, but also cause insoluble difficulties for the available arable land, thereby reducing farmers' income and people's quality of life
[0003] In order to solve this problem, researchers at home and abroad have carried out research on degradable plastics. At present, degradable plastics are mainly divided into biodegradable plastics and photodegradable plastics. Photodegradable plastics need to add photosensitizers. Stop the degradation reaction (such as being landfilled). In the actual processing process, the degradation rate is not high. Biodegradable plastics are doped with a relatively large amount of starch. The degradability of starch is used to improve the degradability of plastics, but starch Excessive content has a great impact on the thermoplastic properties, strength and tensile properties of plastics, and it is difficult to meet the use requirements of conventional plastic products

Method used

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  • Novel degradable composite plastic and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] Embodiment 1: A kind of novel degradable composite plastics, comprises 40 parts of polypropylene compounds, 15 parts of micron plant short fibers, 5 parts of fillers, 3 parts of compatibilizers, 0.4 parts of antioxidants, 0.3 parts of lubricants, 3 parts of 1 part of antibacterial additive, 2 parts of biodegradation agent, wherein, the described polypropylene compound of the present embodiment is homopolymerization heat-resistant food-grade polypropylene compound, nontoxic and harmless, helps to protect the environment, and described micron plant short fiber is made of coffee Natural cellulose short fibers extracted from coffee grounds, the mesh number of coffee grounds fibers is 800-1250, efficient use of recycled coffee grounds materials, more environmentally friendly, and the addition of micron plant short fibers extracted from coffee grounds in this embodiment, the first On the one hand, the coffee grounds fiber can change the original color of the polypropylene comp...

Embodiment 2

[0038] Embodiment 2: A kind of novel degradable composite plastic, comprises the component of following parts by weight: 60 parts of polypropylene compound, 30 parts of micron plant short fiber, 15 parts of filler, 5 parts of compatibilizer, 0.5 part of antioxidant , 0.5 parts of lubricant, 4 parts of antibacterial additives, 3 parts of biodegradants, wherein, compared with embodiment 1, the described filler of embodiment 2 is the calcium carbonate that contains iron, tin or manganese metal element, on the one hand carbonic acid Calcium is easily utilized by microorganisms and easily decomposed. On the other hand, doping iron, tin or manganese metal elements in calcium carbonate can effectively promote the degradation of polypropylene compounds at composting temperatures. The iron stearate-manganese stearate composite photosensitizer promotes the composite plastic to have good photo-biodegradability, and under the conditions of composting and landfill treatment, the degradation...

Embodiment 3

[0039] Embodiment 3: A kind of novel degradable composite plastics, comprises the component of following parts by weight: 50 parts of polypropylene compounds, 25 parts of micron plant short fibers, 10 parts of fillers, 4 parts of compatibilizers, 0.6 parts of antioxidants , 0.4 parts of lubricant, 4 parts of antibacterial additives, 2.5 parts of biodegradants, wherein, compared with Example 1, the filler is a mixture of talcum powder and starch, and the hindered phenolic antioxidant in the antioxidant The weight mixing ratio of agent and phosphite antioxidant is 1:1.5, and described biodegradation agent is the iron stearate-manganese stearate composite photosensitizer containing bioactive agent, and described lubricant is stearic acid The mixture of salt and stearic acid amide, the lubricant can improve the processability of polypropylene compound, improve the dispersion effect of micron plant short fiber, and the finished product effect is better, the micron plant short fiber ...

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Abstract

The invention relates to novel degradable composite plastic, comprising, by weight, 40-60 parts of polypropylene compound, 15-45 parts of micron plant short-staple, 5-15 parts of fillers, 3-7 parts ofcompatilizers, 0.4-0.6 part of antioxidant, 0.3-0.5 part of lubricant, 3-5 parts of antibacterial additives and 2-3 parts of biodegradable agents. Under cooperation of photocatalytic degradation andmicro-biological degradation, the composite plastic has excellent degradation performance, mechanic performance and mechanical property. A preparation method of the novel degradable composite plasticincludes pretreatment, mixing with stirring, mixing with a mixer, extrusion and granulation, cooling and dehydration, and the like. Components of the degradable composite plastic are mixed more dispersively By the preparation method, and thus, quality of the finished product is better.

Description

technical field [0001] The invention relates to the technical field of plastic materials, in particular to a novel degradable composite plastic and a preparation method thereof. Background technique [0002] The current plastics after use are mainly incinerated, buried or recycled into the same type of plastics for recycling, and most of them are disposed of by incineration or burial. Incineration not only pollutes the environment, but also aggravates the greenhouse effect. , causing the ozone layer to be destroyed, which in turn poses a threat to human health; and the way of burial will not only pollute the groundwater, but also cause unsolvable difficulties for the available arable land, thereby reducing farmers' income and people's quality of life. [0003] In order to solve this problem, researchers at home and abroad have carried out research on degradable plastics. At present, degradable plastics are mainly divided into biodegradable plastics and photodegradable plasti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L1/02C08L3/02C08K13/02C08K13/06C08K9/04C08K3/22C08K3/34C08K5/134C08K5/526C08K3/26C08K5/098D06M13/188D06M13/02D06M15/227D06M101/06
CPCC08K2003/2241C08K2003/265C08K2201/014C08L23/12C08L2201/06C08L2205/03C08L2205/16D06M13/02D06M13/188D06M15/227D06M2101/06C08L1/02C08L3/02C08K13/02C08K3/22C08K3/346C08K5/1345C08K5/526C08K13/06C08K9/04C08K3/26C08K5/098
Inventor 黄宗伟李华超
Owner 广东力美新材料科技有限公司
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