Preparation method of environmental protection type biodegradable plastic additive with enhanced physical property
A technology of biodegradable plastics and additives, applied in the chemical industry, can solve problems such as unusable for a long time, non-recyclable, poor physical properties, etc., to achieve the effects of increasing compatibility, prolonging storage period, and promoting biodegradation
Inactive Publication Date: 2010-07-28
卢财福 +1
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Problems solved by technology
[0007] The purpose of the present invention is to improve the shortcomings of the previous "modified starch / plastic mixture" products such as poor physical properties, long-term use, and non-recyclable remanufacturing through the selection of formula ingredients, mixing ratio and mixing temperature. Ethylene copolymer elastomer and ethylene-acrylate are used as compatibilizers between modified starch and polyolefin plastics. The addition ratio of these two compatibilizers will greatly affect the physical properties of the final product
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[0024] First, ethylene-octene copolymer elastomer (trade name POE Engage) 10%, nano calcium carbonate (CaCO 3 ) 15%, ethylene-(meth)acrylic acid zinc salt, sodium salt, lithium salt ionomer (trade name Surlyn) 10% mixed, and then fused at a temperature between 110 degrees Celsius and 150 degrees Celsius, the best The temperature is 130 degrees Celsius; after that, add 10% high-density polyethylene (HDPE), 5% talcum powder, 10% liquid paraffin, and 5% antistatic agent, and fuse at a temperature between 160 degrees Celsius and 220 degrees Celsius. The optimal temperature is 180 degrees Celsius; then, add 20% plasticized starch and 15% coconut fiber, and perform fusion at a temperature between 100 degrees Celsius and 170 degrees Celsius, and the optimal temperature is 150 degrees Celsius. Stir the above mixture to make environmentally friendly plastic masterbatch, then mix the environmentally friendly plastic masterbatch and PE raw material at a ratio of 30%:70%, and make an envi...
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The invention relates to a preparation method of an environmental protection type biodegradable plastic additive with enhanced physical properties, which belongs to the chemical field. Based on the selection of formula components and the regulation and control of the mixing proportion and mixing temperature, the invention overcomes the defects that the existing degradable plastic product has poor physical properties, can not be used for a long term and can not be recycled and regenerated. The weight percentage of each component of the biodegradable plastic additive is as follows: 8-12 percent of ethylene copolymer elastomer, 13-17 percent of nano calcium carbonate (CaCO3), 8-12 percent of ethylene-acrylate, 8-12 percent of high-density polyethylene (HDPE), 4-6 percent of talc powder, 8-12 percent of liquid paraffin, 4-6 percent of antistatic agent, 16-24 percent of plasticized starch, and 13-17 percent of degradation promoter. The method comprises the following steps: preparing an environmental protection type plastic master batch through mixing all the components, mixing the environmental protection type plastic master batch with LLDPE, LDPE, HDPE, PE, PP, PC, PS, EVA, NBR, TPR, melamine and other raw materials with a proper proportion, and manufacturing plastic bags, containers, shoes, dishes and other kinds of supplies through ejection, extrusion, film blowing and the like. All the components of the invention have high compatibility, thereby enhancing the mechanical properties of the biodegradable plastic additive. Simultaneously, the invention has biodegradability and high practicality.
Description
technical field [0001] The present invention relates to the chemical industry, and in particular to a method for preparing an environmentally friendly biodegradable plastic additive with enhanced physical properties. Background technique [0002] Looking back at the history of technological evolution of materials, the petrochemical industry and plastic synthetic materials developed rapidly after the middle of the 20th century. Because plastic is easy to process, various in appearance, durable, and relatively cheap, plastic materials have become one of the most important materials in industrial production, such as shopping bags, tableware, textiles, shoe materials, rain gear, household items, building materials, etc. For the application field of plastics. Therefore, people's daily life is inseparable from plastic materials. [0003] However, the recent research on plastics industry technology no longer completely relies on the traditional petrochemical industry, but focuses...
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Login to View More IPC IPC(8): C08L23/08C08L23/06C08L3/02C08K3/26C08K3/34C08K5/098C08J3/22
Inventor 卢财福
Owner 卢财福