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Biological tuberous starch degradable plastic master batch, preparing method and application thereof

A technology of potato starch and degradable plastics, which is applied in biological packaging, flexible covering, transportation and packaging, etc., can solve the problems of unenvironmental protection and refractory degradation, and achieve the effect of low price and easy purchase.

Inactive Publication Date: 2010-06-09
梁雄辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of existing plastic products such as refractory degradation and non-environmental protection, the present invention provides a new type of masterbatch for processing plastic products with high degradability produced by using natural potatoes as raw materials, its preparation method and application

Method used

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Experimental program
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Effect test

no. 1 Embodiment

[0013] The first specific embodiment of the present invention is a biological potato starch degradable plastic masterbatch, the plastic masterbatch is composed of the following components by weight ratio: 75% of refined potato starch, 10% of ethylene-vinyl acetate copolymer , dicumyl peroxide 2%, stearic acid 5%, maleic anhydride 1%, ethylene glycol 3%, white oil 4%.

no. 2 Embodiment

[0014] The second specific embodiment of the present invention is a biological potato starch degradable plastic masterbatch, the plastic masterbatch is composed of the following components by weight ratio: 80% of refined potato starch, 7% of ethylene-vinyl acetate copolymer , 0.5% dicumyl peroxide, 4.5% stearic acid, 1% maleic anhydride, 2% ethylene glycol, 5% white oil.

no. 3 Embodiment

[0015] The third specific embodiment of the present invention is a biological potato starch degradable plastic masterbatch, the plastic masterbatch is composed of the following components by weight ratio: 77% of refined potato starch, 8% of ethylene-vinyl acetate copolymer , dicumyl peroxide 1.5%, stearic acid 4%, maleic anhydride 2%, ethylene glycol 1.5, white oil 6%.

[0016] The above-mentioned production method of biological potato starch degraded plastic masterbatch includes the following steps: potato starch refinement process, starch high-speed mixing process and reaction extrusion process; wherein; starch and stearic acid in the starch refinement process Stir in the high mixing pot at low speed for 2 minutes, adjust the speed to high speed and stir for 3 minutes, adjust the speed to low speed and discharge the material, transfer the mixed material to the refiner, grade the speed: 1000r / min, refine to 1000-1200 mesh ( 10-13um); in the starch high-speed mixing process, f...

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Abstract

The invention relates to a biological tuberous starch degradable plastic master batch. The plastic mater batch is prepared from the following components by weight percentage: 70-80% of fine tuberous starch, 7-10% of flexibilizer, 0.5-2% of initiator, 4-7% of modifier, 1-3% of plasticizer and 3-6% of lubricating processing aid. The method for producing the biological tuberous starch degradable plastic master batch comprises the following steps of: tuberous starch refining procedure, starch high-speed mixing procedure and reaction extrusion procedure. The tuberous starch is a natural polymer substance with high polymerization degree, and has the advantages of high polarization, high amylose content, low cost and easy purchase. In addition, the tuberous starch is easy to perform graft reaction with the polymer, and is easy to perform esterification reaction with the modifier; and the natural starch with high rigidity and high crystallinity is converted into a plastic master batch with plastic property through microfining, modification and reaction extrusion. As the master batch has a certain strength and thermoplastic processing property, the master batch can be used for processing various film products, blow molding products and injection molding products according to different adding amounts.

Description

technical field [0001] The invention relates to a raw material of a plastic product, in particular to a production masterbatch of a plastic product made of pure natural plants. Background technique [0002] Plastic, as a new material, has developed vigorously since the middle of the 20th century, and has shown a continuous growth trend year by year. Now, plastic products have been widely used in various industries and fields of human activities, and it is becoming more and more difficult to leave plastic products in our daily life. While the plastics industry is developing, plastic materials also encounter two problems: (1) limited resources. Polymer compounds such as plastics are mainly derived from petroleum, and petroleum is a non-renewable resource, which has been gradually depleted on the earth. (2) Pollution to the ecological environment. At present, the world's plastic production has reached 200 million tons, and my country's plastic production is also about 20 mil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/16C08L23/08C08L31/04C08K5/053B29B9/06C08L23/06A01G13/02B65D30/02B65D65/38
CPCY02W90/10
Inventor 梁雄辉
Owner 梁雄辉
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