Hindered-phenol-modified montmorillonite damping agent and production method and application thereof

A technology of hindered phenol and montmorillonite, applied in the field of damping materials, can solve the problems that the damping performance and mechanical properties cannot meet the actual needs, and can not broaden the effective damping temperature range of rubber, etc., and achieve excellent damping performance and mechanical properties, wide effective Effect of damping temperature range and improving compatibility

Active Publication Date: 2019-08-16
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventor once prepared organic small molecules terminated by hindered phenolic groups between montmorillonite layers, which were used for damping and vibration reduction of chlorinated butyl rubber (Wang Jincheng, a chlorinated butyl damping agent containing modified montmorillonite damping agent) The preparation method of rubber, CN201510706304.4), although this technology can improve the damping performance and mechanical properties of rubber to a certain extent, but this technology can not widen the effective damping temperature range of rubber, so for chlorobutyl rubber The overall improvement of the effective damping temperature range, damping performance and mechanical properties still cannot meet the actual needs.

Method used

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  • Hindered-phenol-modified montmorillonite damping agent and production method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] a) Inorganic montmorillonite is added to water, the mass ratio of water and inorganic montmorillonite is 5:1, and it is prepared into montmorillonite suspension; hexadecyl ammonium bromide is dissolved in water, water and hexadecane The mass ratio of alkyl ammonium bromide is 100:1, is mixed with alkyl quaternary ammonium salt aqueous solution; 10g montmorillonite suspension is mixed with 30g alkyl quaternary ammonium salt aqueous solution, then stirred and reacted at 70 ℃ for 6 hours, and ended the reaction , filter the reaction solution, wash the filter cake with deionized water until no bromide ions exist in the washing solution, then dry the resultant at 100°C to obtain organic montmorillonite;

[0051] b) dissolving 2,6-di-tert-butylphenol in xylene to prepare a 10wt% hindered phenol xylene solution; dissolving sodium methoxide in methanol to prepare a 6wt% sodium methoxide solution; anhydrous and oxygen-free Under the conditions, the hindered phenol xylene solution,...

Embodiment 2

[0061] a) Inorganic montmorillonite is added to water, the mass ratio of water and inorganic montmorillonite is 8:1, and it is prepared into montmorillonite suspension; hexadecyl ammonium bromide is dissolved in water, water and hexadecane The mass ratio of ammonium bromide is 100:2, and it is prepared into an aqueous solution of alkyl quaternary ammonium salt; 10g of montmorillonite suspension is mixed with 40g of aqueous alkyl quaternary ammonium salt, then stirred and reacted at 75°C for 5 hours, and the reaction is terminated , the reaction solution was filtered, and the filter cake was washed with deionized water until no bromide ions existed in the washing solution, and then the resultant was dried at 110° C. to obtain organic montmorillonite;

[0062] b) dissolving 2,6-di-tert-butylphenol in xylene to prepare a 20wt% hindered phenol xylene solution; dissolving sodium methoxide in methanol to prepare a 7wt% sodium methoxide solution; anhydrous and oxygen-free Under the c...

Embodiment 3

[0072] a) Inorganic montmorillonite is added to water, the mass ratio of water and inorganic montmorillonite is 10:1, and it is prepared into montmorillonite suspension; hexadecyl ammonium bromide is dissolved in water, water and hexadecane The mass ratio of alkylammonium bromide is 100:3, and it is prepared into an aqueous solution of alkyl quaternary ammonium salt; 10g of montmorillonite suspension is mixed with 50g of aqueous alkyl quaternary ammonium salt, then stirred and reacted at 80°C for 4 hours, and the reaction is terminated , the reaction solution was filtered, and the filter cake was washed with deionized water until no bromide ions existed in the washing solution, and then the resultant was dried at 120° C. to obtain organic montmorillonite;

[0073] b) dissolving 2,6-di-tert-butylphenol in xylene to prepare a 30wt% hindered phenol xylene solution; dissolving sodium methoxide in methanol to prepare an 8wt% sodium methoxide solution; anhydrous and oxygen-free Unde...

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Abstract

The invention discloses a hindered-phenol-modified montmorillonite damping agent and a production method and application thereof. The hindered-phenol-modified montmorillonite damping agent is obtainedby modifying organic montmorillonite with modified hindered phenol, the modified hindered phenol is obtained by modifying hindered phenol with a silane coupling agent, and the organic montmorilloniteis obtained by modifying inorganic montmorillonite with an alkyl quaternary ammonium salt. By adding 10-30 parts by mass of the hindered-phenol-modified montmorillonite damping agent into 100 parts by mass of a chlorobutyl damping rubber matrix, a chlorobutyl damping rubber compound material can be produced. Experiments show that the hindered-phenol-modified montmorillonite damping agent can be evenly dispersed in the chlorobutyl rubber matrix so that the damping performance, the mechanical performance and a damping temperature range of the obtained chlorobutyl damping rubber compound material can be significantly improved.

Description

technical field [0001] The invention relates to a damping agent and its preparation method and application, specifically, to a hindered phenol modified montmorillonite damping agent and its preparation method and its application in chlorinated butyl damping rubber composite materials, belonging to damping field of materials technology. Background technique [0002] Chlorinated butyl rubber (CIIR) is made by passing chlorine gas into butyl rubber solution. Excellent reactivity, fast vulcanization speed, and good adhesion. Therefore, it is widely used in the production of tires, rubber hoses, tapes, industrial rubber products, pharmaceutical rubber products, cultural and sports rubber products, building sealing materials and chemical anti-corrosion linings, etc. [0003] Due to the halogen side groups with large steric hindrance, chlorinated butyl rubber has large internal friction when the molecular chain moves, and has weak polarity. Therefore, chlorinated butyl rubber has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K9/06C08K3/34C08K13/06C08L23/28
CPCC08K3/346C08K9/04C08K9/06C08K13/06C08L23/283
Inventor 潘晔王锦成盛泽元宋仕强路遥汤可雅杨思远
Owner SHANGHAI UNIV OF ENG SCI
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