Chemigum composite material for high-damping shock-insulation support and preparation method of chemigum composite material

A technology of composite materials and nitrile rubber, which is applied in the field of rubber composite materials for high-damping shock-isolation bearings and its preparation, to achieve low elongation strength, small permanent deformation, and good physical and mechanical properties

Active Publication Date: 2015-07-22
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sliding graft polymer is still a new type of material, and there are few reports on its blending with traditional rubber materials

Method used

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  • Chemigum composite material for high-damping shock-insulation support and preparation method of chemigum composite material
  • Chemigum composite material for high-damping shock-insulation support and preparation method of chemigum composite material
  • Chemigum composite material for high-damping shock-insulation support and preparation method of chemigum composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] At 25°C, masticate 100g of nitrile rubber (the mass fraction of N220S acrylonitrile is 41%) on the open mill for 3 minutes, and then cover the rolls; add 5g of activator zinc oxide, 1g of activator stearic acid, and 1g of accelerator D , Accelerator DTDM 3g, carbon black N23440g, vulcanizing agent sulfur 2g mixed evenly, and prepared into a rubber compound; after thinning, add 20g of sliding graft polymer S100000 for pre-curing at 150°C for 3 hours, let it stand for 8 hours, At 160°C, vulcanize on a flat vulcanizer for 7.5 minutes to prepare a sliding graft polymer / nitrile rubber composite film.

Embodiment 2

[0031] At 25°C, masticate 100g of nitrile rubber (the mass fraction of N230S acrylonitrile is 35%) on the open mill for 3 minutes, and then cover the rolls; add 5g of activator zinc oxide, 1g of activator stearic acid, and 1g of accelerator D , Accelerator DTDM 3g, carbon black N23440g, vulcanizing agent sulfur 2g mixed evenly, and prepared into a rubber compound; after thinning, add 20g of sliding graft polymer S100000 for pre-curing at 150°C for 3 hours, let it stand for 8 hours, At 160°C, vulcanize on a flat vulcanizer for 13 minutes to prepare a sliding graft polymer / nitrile rubber composite film.

Embodiment 3

[0033] At 25°C, masticate 100g of nitrile rubber (the mass fraction of N240S acrylonitrile is 24%) on the open mill for 3 minutes, and then cover the rolls; add 5g of activator zinc oxide, 1g of activator stearic acid, and 1g of accelerator D , Accelerator DTDM 3g, carbon black N23440g, vulcanizing agent sulfur 2g mixed evenly, and prepared into a rubber compound; after thinning, add 20g of sliding graft polymer S100000 for pre-curing at 150°C for 3 hours, let it stand for 8 hours, At 160°C, vulcanize on a flat vulcanizer for 16.2 minutes to prepare a slide graft polymer / nitrile rubber composite film.

[0034] The formula of table 4 embodiment 1,2,3 rubber material

[0035] formula

Example 1

Example 2

Example 3

Nitrile rubber NBR

N220S 100 copies

N230S 100 copies

N240S 100 copies

Zinc oxide ZnO

5 copies

5 copies

5 copies

Stearic acid SA

1 copy

1 copy

1 copy

Accelerator D

1 copy

1 copy ...

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Abstract

The invention relates to a rubber composite material for a high-damping shock-insulation support and a preparation method of the rubber composite material. According to the invention, a novel sliding graft polymer and NBR are compounded to prepare the high-damping rubber composite material, the sliding graft polymer is pre-vulcanized to form primary crosslinking, then the sliding graft polymer subjected to prevulcanization and primary crosslinking is adopted as a functional additive and mixed into a chemigum matrix and forms a hydrogen bond network structure with rubber macromolecules. The novel composite material is endowed with the advantages of high damping, high elongation at break, low stretching strength and small permanent deformation, meets the performance index requirements of the rubber composite material from the high-damping support, and has a wide application prospect.

Description

technical field [0001] The invention relates to a rubber composite material for high-damping shock-isolation bearings and a preparation method thereof. A novel sliding graft polymer is used as a functional additive in a nitrile rubber matrix, and the prepared rubber composite material can be used for building bridge shock-isolation laminates Preparation of rubber bearings. Background technique [0002] The seismic design of modern buildings is based on the concept of "base isolation". The principle is to install a sufficiently safe and reliable isolation system between the upper structure of the building and the foundation to increase the deformation capacity and damping of the structure and effectively isolate the seismic energy. Or consumption, reduce the seismic response of the structure, and protect the safety of the upper structure. As an important component of "base isolation", its main function is to support the entire weight of the building on the one hand, and to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L51/00C08K13/02C08K3/22C08K5/09C08K3/04C08K3/06
CPCC08L9/02C08L51/00C08K13/02C08K2003/2296C08K5/09C08K3/04C08K3/06
Inventor 张立群赵秀英耿晓燕杨静娜王文才赵德涛
Owner BEIJING UNIV OF CHEM TECH
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