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Nitrile rubber/lignin composition, nitrile rubber/lignin composite material, and preparation method and application thereof

A technology of nitrile rubber and lignin, which is applied in the field of nitrile rubber/lignin composition and nitrile rubber/lignin composite material and its preparation and application, and can solve the harsh application requirements of lignin type, molecular weight and structure, Poor dispersion and other problems, to achieve the effect of environmental friendliness and biodegradability, wide range of sources, good processing performance

Active Publication Date: 2020-07-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a new nitrile rubber / lignin composition

Method used

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  • Nitrile rubber/lignin composition, nitrile rubber/lignin composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] In parts by weight, preheat the internal mixer to 90°C, add 50 parts of dry solvent lignin and 30 parts of carboxyl-terminated nitrile rubber to the internal mixer, and fully mix and react for 20 minutes; add 100 parts of nitrile rubber ( acrylonitrile content 41% by weight) and 25 parts of zinc methacrylate, continue to knead for 15 minutes; then at 90°C, add 2 parts of DCP and 2.5 parts of TAIC, continue to knead for 10 minutes and discharge. The material coming out of the internal mixer continues to be kneaded on the double-roller mill for 12 minutes, and the flakes are left for 24 hours, and finally put into a flat vulcanizer, and vulcanized for 30 minutes at 160 ° C and 15 MPa process conditions to obtain nitrile rubber / lignin Composite material C1.

Embodiment 2

[0081] In parts by weight, preheat the internal mixer to 90°C, add 50 parts of dry solvent lignin and 30 parts of epoxy-terminated nitrile rubber to the internal mixer, mix and react for 20 minutes; add 100 parts of nitrile in turn Rubber (acrylonitrile content: 41% by weight) and 25 parts of zinc methacrylate continued to knead for 15 minutes; then at 90° C., 2 parts of DCP and 2.5 parts of TAIC were added, and kneading was continued for 10 minutes before discharge. The material coming out of the internal mixer continues to be kneaded on the double-roller mill for 12 minutes, and the flakes are left for 24 hours, and finally put into a flat vulcanizer, and vulcanized for 30 minutes at 160 ° C and 15 MPa process conditions to obtain nitrile rubber / lignin Composite material C2.

Embodiment 3

[0083]In parts by weight, preheat the internal mixer to 90°C, add 50 parts of dry solvent lignin and 30 parts of epoxidized carboxyl-terminated nitrile rubber into the internal mixer, and mix and react for 20 minutes; add 100 parts of butyl Nitrile rubber (acrylonitrile content: 33% by weight) and 25 parts of zinc methacrylate were continuously kneaded for 15 minutes; then at 90°C, 2 parts of DCP and 2.5 parts of TAIC were added, and kneading was continued for 10 minutes before discharge. The material coming out of the internal mixer continues to be kneaded on the double-roller mill for 12 minutes, and the flakes are left for 24 hours, and finally put into a flat vulcanizer, and vulcanized for 30 minutes at 160 ° C and 15 MPa process conditions to obtain nitrile rubber / lignin Composite material C3.

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Abstract

The invention relates to the field of rubber materials, and discloses a nitrile rubber / lignin composition, a nitrile rubber / lignin composite material and a preparation method and application thereof.The composition contains a nitrile rubber matrix, lignin, an interface reactant and a vulcanizing aid which are stored in a mixed manner or independently stored, and an activating aid is optically selected; with respect to the 100 parts of nitrile rubber matrix by weight, the contents of 1-150 parts of lignin, 0.05-30 parts of interface reactant, 0-50 parts of activating aid and 0.1-30 parts of vulcanizing aid are arranged. The nitrile rubber / lignin composite material with different mechanical properties can be obtained, the tensile strength of the nitrile rubber / lignin composite material canreach 10-30 MPa, and the elongation at break of the nitrile rubber / lignin composite material can reach 250-800%.

Description

technical field [0001] The invention relates to the field of rubber materials, in particular to a nitrile rubber / lignin composition, a method for preparing a nitrile rubber / lignin composite material and a nitrile rubber / lignin composite material prepared by the method , and the application of the nitrile rubber / lignin composite material in at least one of automobile hoses, printer rollers and foamed heat insulating materials. Background technique [0002] Nitrile-butadiene rubber (NBR) is a synthetic rubber prepared by copolymerization of butadiene and acrylonitrile emulsion. With its good oil resistance, hydrocarbon solvent resistance and heat aging resistance, it is widely used in automobiles, aerospace, petroleum Chemical, textile, wire and cable, printing and food packaging and other fields. Its disadvantages are poor low temperature resistance, ozone resistance and poor UV aging resistance. [0003] Lignin is the most abundant renewable aromatic polymer in nature, mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L97/00C08L13/00C08L15/00C08K5/14
CPCC08L9/02C08L97/005C08L2201/06C08L2201/08C08L13/00C08L15/00C08K5/14
Inventor 孙攀解希铭王雷雷李静乔勋昌刘翠云
Owner CHINA PETROLEUM & CHEM CORP
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