Dynamically vulcanized polylactic acid plastic/rubber thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer and vulcanized polylactic acid technology, which is applied in the field of thermoplastic elastomer materials, can solve the problems of unreasonable amount of peroxide, peculiar smell of vulcanized products, difficult biodegradation of waste, etc. knot strength, excellent impact properties, improved incompatibility
CN103642184BActive Publication Date: 2016-10-05SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2016-10-05

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Abstract

The invention discloses a dynamically vulcanized polylactic acid plastic / rubber thermoplastic elastomer and a preparation method thereof. In parts by mass, its raw materials include the following components: 20-90 parts of polylactic acid, 10-80 parts of rubber, 0.1-1 part of antioxidant, 1-10 parts of interface modifier, and 0.1-4.8 parts of crosslinking agent , 0.1-4.2 parts of auxiliary cross-linking agent; during preparation, mix polylactic acid, antioxidant, rubber and interface modifier evenly at a temperature of 150-190 ยฐ C, and add cross-linking agent and auxiliary cross-linking agent under high-speed shearing The crosslinking agent dynamically vulcanizes the rubber phase to obtain a polylactic acid plastic / rubber thermoplastic elastomer prepared by dynamic vulcanization. The polylactic acid plastic / rubber thermoplastic elastomer obtained in the present invention has high mechanical strength, excellent impact performance, repeatable processing and other characteristics, and can be widely used in medical treatment, automobile industry, agricultural production, packaging, clothing, information electronics industry, chemical industry , new energy and environmental protection.
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Description

technical field

[0001] The invention relates to a thermoplastic elastomer material, in particular to a dynamically vulcanized polylactic acid plastic / rubber thermoplastic elastomer and a preparation method thereof. Background technique

[0002] The invention of petroleum-based plastics in the 20th century is known as the greatest invention. Petroleum-based plastic products greatly facilitate people's daily life, but the waste after use of these products is difficult to biodegrade, causing serious white pollution to the earth; At the same time, oil is a non-renewable resource, and over-exploitation and use have made oil resources nearly exhausted. Today, energy issues and environmental issues are getting more and more attention from people. Searching for renewable, biodegradable and environmentally friendly polymer materials that can replace petroleum-based plastics has aroused great interest among material scientists from all over the world.

[0003] Polylactic acid (PLA) ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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