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A kind of dendritic upy damping agent and its preparation method and application

A dendritic and damping agent technology, applied in the field of damping materials, can solve the problems of high temperature damping temperature range of chlorobutyl rubber, damping performance, heat resistance, mechanical properties and wear resistance that cannot meet actual needs, etc., and achieve excellent Damping performance, effect of wide high temperature damping temperature range

Active Publication Date: 2022-03-25
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned modification technology can improve the damping performance of chlorinated butyl rubber to a certain extent, the overall performance of the high temperature damping temperature range, damping performance, heat resistance, mechanical properties and wear resistance of chlorinated butyl rubber Improvements in aspects still cannot meet the actual needs

Method used

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  • A kind of dendritic upy damping agent and its preparation method and application
  • A kind of dendritic upy damping agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] a) Preparation of dendrimers with terminal chlorine atoms:

[0062] Disperse 20g of hexachlorotripolyphosphazene and 0.1g of p-toluenesulfonic acid in 150g of ethylene glycol (ethylene glycol is used as reactant and solvent at the same time), then under nitrogen protection, stirring and reacting at 140 ° C for 2 hours, the end For the reaction, first vacuum was applied to remove unreacted monomers, then the residue was washed with methanol, centrifuged for precipitation, and the resulting precipitate was vacuum-dried at 40 °C for 6 hours to obtain the first generation dendrimer, abbreviated as D. -1;

[0063] Disperse 30g of 1,6-hexanediamine and 0.2g of p-toluenesulfonic acid in 100g of toluene, add D-1 prepared in the previous step, and then stir and react at 130°C for 4 hours under nitrogen protection, and complete the reaction, First vacuum was applied to remove unreacted monomers, then the residue was washed with methanol, centrifuged to precipitate, and the resul...

Embodiment 2

[0080] a) Preparation of dendrimers with terminal chlorine atoms:

[0081] Disperse 30g of hexachlorotripolyphosphazene and 0.2g of p-toluenesulfonic acid in 180g of ethylene glycol (ethylene glycol is used as reactant and solvent at the same time), then under nitrogen protection, stirring and reacting at 130 ° C for 3 hours, the end For the reaction, vacuum was first applied to remove unreacted monomers, then the residue was washed with methanol, centrifuged for precipitation, and the resulting precipitate was vacuum-dried at 50 °C for 5 hours to obtain the first generation dendrimer, abbreviated as D. -1;

[0082] Disperse 40g of 1,6-hexanediamine and 0.3g of p-toluenesulfonic acid in 130g of toluene, add D-1 prepared in the previous step, and then stir and react at 140 ° C for 3 hours under nitrogen protection, and complete the reaction, First vacuum was applied to remove unreacted monomers, then the residue was washed with methanol, the precipitate was centrifuged, and th...

Embodiment 3

[0099]a) Preparation of dendrimers with terminal chlorine atoms:

[0100] Disperse 40g of hexachlorotripolyphosphazene and 0.3g of p-toluenesulfonic acid in 210g of ethylene glycol (ethylene glycol is used as reactant and solvent at the same time), then under nitrogen protection, stirring and reacting at 120 ° C for 4 hours, the end Reaction, first vacuum to remove unreacted monomers, then the residue is washed with methanol, centrifuged to precipitate, and the obtained precipitate is vacuum-dried at 60 °C for 4 hours to obtain the first generation dendrimer, abbreviated as D -1;

[0101] Disperse 50g of 1,6-hexanediamine and 0.4g of p-toluenesulfonic acid in 150g of toluene, add D-1 prepared in the previous step, and then stir the reaction at 150 ° C for 2 hours under nitrogen protection, and complete the reaction, First vacuum was applied to remove unreacted monomers, then the residue was washed with methanol, the precipitate was centrifuged, and the resulting precipitate w...

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Abstract

The invention discloses a dendritic UPy damper as well as its preparation method and application. The dendritic UPy damper is obtained by reacting an isocyanate-terminated dendrimer with 6-methylisocytosine, and the isocyanate-terminated dendrimer is obtained by reacting an amino-terminated dendrimer with 1,6 It is obtained by the reaction of hexamethylene diisocyanate, and the amino-terminated dendrimer is obtained by reacting a dendrimer with a chlorine atom at the end with 1,6-hexanediamine, and the dendrimer with a chlorine atom at the end It is obtained by the reaction of hexachlorotrimeric phosphazene and ethylene glycol with 1,6-hexanediamine and hexachlorotrimeric phosphazene alternately. Experiments show that: the dendritic UPy damping agent of the present invention can be uniformly dispersed in the chlorinated butyl rubber matrix, and can significantly improve the damping performance, heat resistance, mechanical properties, and wear resistance of the obtained chlorinated butyl damping rubber composite material. performance and high temperature damping temperature range.

Description

technical field [0001] The invention relates to a damping agent and a preparation method and application thereof, in particular to a dendritic UPy damping agent and its preparation method and application in a chlorinated butyl damping rubber composite material, belonging to the technical field of damping materials. Background technique [0002] With the rapid development of modern technology and modern industry, traffic tends to be high-speed and automated, and a series of problems such as vibration, noise, fatigue fracture, etc. will inevitably occur, thereby accelerating the fatigue damage of the vehicle structure, shortening the service life of the vehicle, and causing pollution. environment and endanger people's health. Therefore, research and development of new and efficient damping materials with excellent comprehensive performance, vibration reduction and noise reduction, and improvement of human-machine working environment are an urgent problem to be solved. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08L11/00C08L87/00
CPCC08G83/003C08G83/004C08L11/00C08L2201/08C08L87/00
Inventor 王言帅潘晔王锦成路遥汤可雅兰云瑞宋伟进王贤超宋仕强陈嘉诚李述洪向恺灵
Owner SHANGHAI UNIV OF ENG SCI
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