Composition, elastomer, preparation method and application of halogen-free flame retardant ethylene octene copolymer/polylactic acid thermoplastic elastomer

A technology of ethylene octene copolymer and thermoplastic elastomer, which is applied in the field of ethylene octene copolymer/polylactic acid blend thermoplastic elastomer material, and can solve problems such as a large number of toxic gases

Active Publication Date: 2022-07-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, both ethylene octene copolymer and polylactic acid materials are easy to burn in the air, and produce a lot of dense smoke and toxic gases when burned

Method used

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  • Composition, elastomer, preparation method and application of halogen-free flame retardant ethylene octene copolymer/polylactic acid thermoplastic elastomer
  • Composition, elastomer, preparation method and application of halogen-free flame retardant ethylene octene copolymer/polylactic acid thermoplastic elastomer
  • Composition, elastomer, preparation method and application of halogen-free flame retardant ethylene octene copolymer/polylactic acid thermoplastic elastomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0044] Using the formula composition shown in Table 1, the following processing methods were used to obtain elastomers P1-P8.

[0045] (1) At a temperature of 200 °C, polylactic acid, an antioxidant (2,2,4-trimethyl-1,2-dihydrovaline), an antioxidant (tetra[β-(3,5) -Di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester) was added into the mixer, after the polylactic acid was melted, the ethylene octene copolymer and the compatibilizer (diphenylmethane diisocyanate) were added, and the melted co-polymer After mixing, a kneaded material is obtained, and the kneaded material is extruded and granulated through a single-screw extruder to obtain kneaded material granules.

[0046] (2) A co-rotating intermeshing twin-screw extruder is used, the screw speed is 100 rpm, the main feeding speed is 40 rpm, the head temperature is 180 ℃, the temperature of the screw feeding section is 150 ℃, and the temperature of the melt-kneading section is 180 ℃, In the above-mentioned co-...

Embodiment 9

[0048] The formula composition shown in Table 1 was used, except that the following processing conditions were used for dynamic vulcanization processing: a co-rotating twin-screw extruder was used, the screw speed was 150 rpm, the main feeding speed was 40 rpm, and the head temperature was 190 ℃ , the temperature of the screw feeding section is 170 ℃, and the temperature of the melting and kneading section is 190 ℃, adding the mixing material particles and vulcanizing agent, dynamically vulcanizing and extruding, and granulating to obtain TPV particles P9.

Embodiment 10

[0050] The TPV particles were prepared by the method described in Example 1, except that the flame retardant system used was 45 parts by weight of polypentaerythritol to obtain TPV particles P10.

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Abstract

The invention relates to the technical field of halogen-free flame retardant ethylene octene copolymer (POE) / polylactic acid (PLA) blended thermoplastic elastomer material, and discloses the preparation of halogen-free flame retardant ethylene octene copolymer / polylactic acid thermoplastic elastomer Body compositions, elastomers, and methods of making and using the same. The composition comprises the following components in parts by weight: 100 parts by weight of an ethylene octene copolymer, 30-100 parts by weight of polylactic acid, 0.5-10 parts by weight of a vulcanizing agent, 40-100 parts by weight of a flame retardant system, 1 -15 parts by weight of compatibilizer, 0.5-5 parts by weight of antioxidant, 0.1-10 parts by weight of antioxidant. The halogen-free flame retardant ethylene octene copolymer / polylactic acid thermoplastic elastomer of the present invention has good flame retardancy, excellent mechanical properties and impact resistance, high elasticity, easy processing and repeated processing, etc. It can be used in automobile fuel pipelines and sealing parts.

Description

technical field [0001] The invention relates to the field of halogen-free flame retardant ethylene octene copolymer (POE) / polylactic acid (PLA) blended thermoplastic elastomer materials, in particular to a method for preparing halogen-free flame retardant ethylene octene copolymer / polylactic acid thermoplastic elastomer Compositions, elastomers, and methods of making and using the same. Background technique [0002] Polylactic acid is a polymer material produced from starch-rich corn, wheat, cassava and other crops as raw materials, which is fermented to produce lactic acid, and then undergoes a polymerization process. It is a thermoplastic linear aliphatic polyester. Compared with traditional plastics, polylactic acid has the following advantages: rich source of raw materials, good biocompatibility and biodegradability, good transparency and processing performance. However, polylactic acid also has the defects of poor toughness and impact resistance. [0003] It is a feas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L67/04C08K13/02C08K5/29C08K5/14C08K3/32C08K5/3437C08K5/053C08K5/3492
CPCC08L23/0815C08L67/04C08L2201/02C08L2201/22C08L2203/18C08L2207/04C08L2205/08C08K2003/323C08K13/02C08K5/29C08K5/14C08K3/32C08K5/3437C08K5/053C08K5/34922
Inventor 李洪真王超吕鹏飞吴卫东
Owner CHINA PETROLEUM & CHEM CORP
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