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Degradable plastic

A plastic and degradation agent technology, applied in the field of degradable plastics, can solve the problems of strong water absorption, fast decomposition rate, oxidation resistance, weak impact resistance, etc., and achieve low water absorption, slow decomposition speed, and good impact resistance Effect

Inactive Publication Date: 2016-12-07
冯可发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a degradable plastic to solve the problems of fast decomposition rate, weak oxidation resistance, impact resistance, strong water absorption, etc. question

Method used

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preparation example Construction

[0040] The preparation method of the degradable plastic comprises the following steps:

[0041] S1: Polylactic acid resin, modified poly-β-hydroxybutyrate PHB, diisononyl phthalate DINP, unsaturated polyester resin, linear low-density polyethylene grafted with maleic anhydride, and γ-glycidyl ether Oxypropyltrimethoxysilane was mixed and stirred at a temperature of 105-120°C and a rotation speed of 200-400r / min for 10-15min to obtain mixture I;

[0042] S2: Under nitrogen protection, add alkaline clay, calcium carbonate, ramie fiber, methyl methacrylate-butadiene-styrene copolymer, aluminum potassium sulfate, citric acid ester, Ethylene-vinyl acetate copolymer, ethylene bisoleic acid amide, diphenylmethane diisocyanate, degradation agent, stirring at 120-180W ultrasonic power, 90-96°C temperature and 200-300r / min rotating speed for 2- 2.5h, the mixture II was obtained;

[0043]S3: Add pea protein powder, oxidized cornstarch, anti-mold and antibacterial agent, antioxidant, st...

Embodiment 1

[0047] A degradable plastic, in parts by weight, including the following raw materials: 120 parts of polylactic acid resin, 80 parts of modified poly-β-hydroxybutyric acid PHB, 8 parts of diisononyl phthalate DINP, unsaturated poly 20 parts of ester resin, 13 parts of pea protein powder, 10 parts of oxidized corn starch, 6 parts of alkaline clay, 5 parts of calcium carbonate, 12 parts of ramie fiber, 1.5 parts of linear low density polyethylene grafted maleic anhydride, γ-glycidol 1.5 parts of etheroxypropyltrimethoxysilane, 2.5 parts of methyl methacrylate-butadiene-styrene copolymer, 1.5 parts of potassium aluminum sulfate, 3.5 parts of citrate, 2.5 parts of ethylene-vinyl acetate copolymer, 2 parts of bisoleic acid amide, 1.5 parts of diphenylmethane diisocyanate, 2.1 parts of antifungal and antibacterial agent, 1.5 parts of degradation agent, 0.9 part of antioxidant, 0.8 part of stabilizer, 1 part of flame retardant, 0.8 part of smoke suppressant , 0.8 parts of tackifier, ...

Embodiment 2

[0065] A degradable plastic, in parts by weight, including the following raw materials: 102 parts of polylactic acid resin, 76 parts of modified poly-β-hydroxybutyrate PHB, 6 parts of diisononyl phthalate DINP, unsaturated poly 15 parts of ester resin, 10 parts of pea protein powder, 7 parts of oxidized corn starch, 3 parts of alkaline clay, 3 parts of calcium carbonate, 8 parts of ramie fiber, 1 part of linear low density polyethylene grafted maleic anhydride, γ-glycidol 1 part of etheroxypropyltrimethoxysilane, 2 parts of methyl methacrylate-butadiene-styrene copolymer, 1 part of potassium aluminum sulfate, 3 parts of citrate, 2 parts of ethylene-vinyl acetate copolymer, 1 part of bisoleic acid amide, 1 part of diphenylmethane diisocyanate, 0.8 part of antifungal and antibacterial agent, 1 part of degradation agent, 0.6 part of antioxidant, 0.5 part of stabilizer, 0.8 part of flame retardant, 0.6 part of smoke suppressant , 0.6 part of tackifier, 0.6 part of softener, 0.4 pa...

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Abstract

The invention discloses a degradable plastic which is prepared from polylactic resin, modified poly-beta-hydroxybutyric acid PHB, diisononyl phthalate DINP, unsaturated polyester resin, pea albumen powder, oxidized corn starch, alkaline hargil, calcium carbonate, ramie, linear low density polyethylene grafted maleic anhydride, gamma-glycidoxy propyl trimethoxy silane, methyl methacrylate butadiene styrene copolymer, aluminium potassium sulfate, tricaprylyl citrate, ethylene-vinyl acetate copolymer, ethylene bis oleamide, diphenylmethane diisocyanate, antimycotic antibacterial agent, degradation agent, antioxidant, stabilizing agent, flame retardance, smoke inhibitor, thickening agent, softening agent and ultraviolet light absorber. The degradable plastic has good tensile strength and elongation at break, is good in impact resistance, low in hydroscopicity and good in light transmission, can be completely degraded into carbon dioxide and water after 136-140 days, and no harm is produced to environment.

Description

【Technical field】 [0001] The invention belongs to the fields of plastic preparation technology and environmental protection, and in particular relates to a degradable plastic. 【Background technique】 [0002] Plastics are widely used, such as plastic toys, plastic bottles, plastic packaging, plastic bags, etc. We cannot live without plastics. Studies have found that plastic products produced from polylactic acid resin can be completely degraded into carbon dioxide and water in a composting environment. Moreover, polylactic acid resin has good compatibility, transparency, solvent resistance and biaxial stretching properties, etc., and can be processed in a variety of ways. At present, the more common plastic products at home and abroad are disposable cups, knives and forks, plates, Plastic bags, non-woven fabrics, etc., theoretically as long as they are plastic products, can be made of this bioplastic material. [0003] However, as we all know, ordinary PP / PE plastics are di...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/06C08L89/00C08L3/10C08L97/02C08L51/06C08K13/02C08K3/32C08K3/22C08K5/17C08K3/26
CPCC08L67/04C08K2201/011C08L2201/06C08L2205/025C08L2205/035C08L2205/16C08L67/06C08L89/00C08L3/10C08L97/02C08L51/06C08K13/02C08K2003/322C08K2003/2241C08K5/175C08K2003/265
Inventor 冯可发
Owner 冯可发
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