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A biodegradable plastic based on polylactic acid resin

A biodegradable plastic and polylactic acid resin technology, applied in the field of plastics, can solve the problems of not significantly reducing the mechanical properties of PLA resin such as tensile strength, and achieve the effect of improving toughness and solving pollution

Active Publication Date: 2018-10-19
深圳立山环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The object of the present invention is to propose a kind of biodegradable plastics based on polylactic acid resin (PLA), to solve the technology that does not significantly reduce the mechanical properties such as the original tensile strength of PLA resin while improving the toughness of PLA resin existing in the above-mentioned prior art question

Method used

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  • A biodegradable plastic based on polylactic acid resin
  • A biodegradable plastic based on polylactic acid resin

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Effect test

Embodiment 1

[0033] The present invention proposes a biodegradable plastic based on polylactic acid resin, which includes the following raw materials in parts by weight: 100 parts of polylactic acid resin (PLA) pure resin, 20 parts of plasticizer, 10 parts of vulcanized vegetable oil, and 2 parts of antioxidant parts, the polylactic acid resin is REVODE190, the plasticizer is ATBC, and the vulcanized vegetable oil is NITREX, the antioxidant is 1010 antioxidant, after mixing the raw materials evenly, the modified PLA plastic is produced through a twin-screw extrusion granulation production line.

Embodiment 2

[0035] The present invention proposes a biodegradable plastic based on polylactic acid resin, which includes the following raw materials in parts by weight: 100 parts of polylactic acid resin (PLA) pure resin, 50 parts of plasticizer, 25 parts of vulcanized vegetable oil, and 2 parts of antioxidant part, the polylactic acid resin (PLA) is REVODE190, the plasticizer is DOSX, and the vulcanized vegetable oil is NITREX, the antioxidant is 1010 antioxidant, after mixing the raw materials evenly, the modified PLA plastic is produced through a twin-screw extrusion granulation production line.

Embodiment 3

[0037] The present invention proposes a biodegradable plastic based on polylactic acid resin, which includes the following raw materials in parts by weight: 100 parts of polylactic acid resin (PLA) pure resin, 40 parts of plasticizer, 15 parts of vulcanized vegetable oil, and 2 parts of antioxidant part, the polylactic acid resin (PLA) is REVODE190, the plasticizer is ESBO, and the vulcanized vegetable oil is NITREX, the antioxidant is 1010 antioxidant, after mixing the raw materials evenly, the modified polylactic acid resin plastic is produced through a twin-screw extrusion granulation production line.

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Abstract

The invention discloses polylactic resin-based biodegradable plastics. Sulfurized vegetable oil is added into a polylactic resin and a bio-based plasticizer, a proper amount of sulfurized vegetable oil is added when the addition amount of the bio-based plasticizer is over 20 percent by weight; on the one hand, the material toughness, which means elongation at break and impact strength, is greatly improved while the tensile strength is not much changed, and on the other hand, the problem of plasticizer precipitation cannot happen during subsequent aging and using processes; and furthermore, the added plasticizer and sulfurized vegetable oil are bio-based products, so that the biodegradability of PLA resin can be maintained.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a biodegradable plastic based on polylactic acid resin. Background technique [0002] Polylactic acid resin (PLA) is a new type of green plastic that is completely biodegradable. It not only has good biocompatibility and biodegradability, but also has the same performance as general plastics such as polypropylene (PP) and polystyrene (PS). Similar, it can be processed by injection molding, extrusion, spinning and other processes to make fibers, films, sheets, plates, etc., and the products after secondary processing such as thermoforming and textiles can be widely used in clothing, packaging, Agriculture, automobiles, electronics, biomedicine and many other fields. [0003] PLA is a polymer material formed by the polymerization of small molecular lactic acid from biomass (cassava, sugar beet, sugarcane, straw cellulose, etc.) through microbial fermentation. Compared with the current gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L91/00C08K5/11C08K5/1515
CPCC08L67/04C08L2201/06C08L2205/025C08L2205/03C08L91/00C08K5/11C08K5/1515
Inventor 章颂云
Owner 深圳立山环保材料有限公司
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