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A kind of hyperbranched damping agent and its preparation method and application

A damping agent and damping rubber technology, applied in the field of damping materials, can solve the problems of unsuitability for large-scale production, high processing cost, low application value, etc., and achieve the effects of easy to achieve large-scale scale, simple preparation process, and improved damping performance.

Active Publication Date: 2017-06-06
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method of improving the damping performance of materials is mostly through simple blending between materials to broaden the Tg range of composite materials, thereby increasing their mutual friction time to improve their damping performance, but the damping temperature range and damping effect Still can not meet the actual needs
[0004] Chinese patent CN 102504338B discloses a dendritic damping agent and its preparation method and application. This dendritic damping agent still has many defects, for example: the preparation of dendritic damping agent is complicated and the processing cost is high, which is not conducive to actual production practice , low practical application value; dendritic damping agents need to strictly control the reaction conditions during synthesis, which is not suitable for large-scale production

Method used

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  • A kind of hyperbranched damping agent and its preparation method and application
  • A kind of hyperbranched damping agent and its preparation method and application
  • A kind of hyperbranched damping agent and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0040] 1. Preparation of silane quaternary ammonium salt: Mix 20mL of 3-chloropropylmethyl diethoxysilane with 100mL of absolute ethanol, add it to a dry three-necked flask, and then add 5mL of decyldimethyl tertiary amine , 15mL cetyl / octadecyl dimethyl tertiary amine and 0.10g sodium iodide; under nitrogen protection, stir and reflux for 14-42 hours; cool to room temperature, remove sodium iodide by suction filtration, and then carry out vacuum distillation After removing the solvent, a light yellow viscous liquid is obtained: silane quaternary ammonium salt.

[0041] 2. Preparation of silane-modified organomontmorillonite: mix 20g of inorganic montmorillonite with 40mL of silane quaternary ammonium salt, add 100mL of 30% ethanol aqueous solution, stir and react at 60°C for 3 hours; filter, collect The solid was washed and dried in vacuum at 70°C to obtain silane-modified organomontmorillonite.

[0042] 3. Preparation of AB2-type monomer: Dissolve 72g of diisopropanolamine ...

Embodiment 2

[0054] 1. Preparation of silane quaternary ammonium salt: Mix 25mL of 3-chloropropylmethyl diethoxysilane with 100mL of absolute ethanol, add it to a dry three-necked flask, and then add 5mL of decyldimethyl tertiary amine , 30mL cetyl / octadecyl dimethyl tertiary amine and 0.15g sodium iodide; under nitrogen protection, stir and reflux for 14-42 hours; cool to room temperature, remove sodium iodide by suction filtration, and then carry out vacuum distillation After removing the solvent, a light yellow viscous liquid is obtained: silane quaternary ammonium salt.

[0055] 2. Preparation of silane-modified organomontmorillonite: mix 40g of inorganic montmorillonite with 50mL of silane quaternary ammonium salt, add 100mL of 30% ethanol aqueous solution, stir and react at 60°C for 3 hours; filter, collect The solid was washed and dried in vacuum at 70°C to obtain silane-modified organomontmorillonite.

[0056] 3. Preparation of AB2-type monomer: Dissolve 75g of diisopropanolamine ...

Embodiment 3

[0069] 1. Preparation of silane quaternary ammonium salt: mix 30mL 3-chloropropylmethyl diethoxysilane with 100mL absolute ethanol, add it to a dry three-necked flask, and then add 5mL decyldimethyl tertiary amine , 30mL cetyl / octadecyl dimethyl tertiary amine and 0.15g sodium iodide; under nitrogen protection, stir and reflux for 14-42 hours; cool to room temperature, remove sodium iodide by suction filtration, and then carry out vacuum distillation After removing the solvent, a light yellow viscous liquid is obtained: silane quaternary ammonium salt.

[0070] 2. Preparation of silane-modified organomontmorillonite: mix 60g of inorganic montmorillonite with 60mL of silane quaternary ammonium salt, add 100mL of 30% ethanol aqueous solution, stir and react at 60°C for 3 hours; filter, collect The solid was washed and dried in vacuum at 70°C to obtain silane-modified organomontmorillonite.

[0071] 3. Preparation of AB2-type monomer: Dissolve 80g of diisopropanolamine in 100mL ...

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Abstract

The invention discloses a hyperbranched damping agent as well as a preparation method and application thereof. The hyperbranched damping agent is prepared by reacting hyperbranched organic montmorillonite, which is produced by reacting an AB2 type monomer with silane-modified organic montmorillonite, with hindered phenol, wherein the silane-modified organic montmorillonite is obtained by modifying inorganic montmorillonite by a silane quaternary ammonium salt. In 100 parts by mass of rubber matrix, 5-20 parts by mass of the hyperbranched damping agent disclosed by the invention is added to prepare a rubber damping material. The hyperbranched damping agent provided by the invention has high damping performance and compatibility, and can be used for enabling the prepared damping rubber material to have excellent damping performance, wear resistance and mechanical performance; and moreover, the damping agent further has the advantages of a simple preparation process, not need of strictly controlling a reaction condition, good repeatability, easiness in realizing large scale, and the like.

Description

technical field [0001] The invention relates to a damping agent and its preparation method and application, in particular to a hyperbranched damping agent and its preparation method and application, and belongs to the technical field of damping materials. Background technique [0002] With the continuous development of science and technology in today's society, people's clothing, food, housing and transportation have undergone great changes. People's requirements for living comfort and safety are getting higher and higher. People desire a better living environment, a quieter environment, and a safer environment. travel. The preparation and development of damping and shock-absorbing materials is to meet people's requirements for these living conditions. [0003] Layered silicate, because its layered structure endows it with good conditions for improving the mutual friction between materials, montmorillonite is the most widely used type of layered silicate. However, as an in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/06C08K9/04C08K3/34C09C1/42C09C3/12C09C3/08C09C3/10C08L23/28C08L11/00C08L23/16C08L9/02C08K13/06
Inventor 曹付海王锦成张广建袁章林
Owner SHANGHAI UNIV OF ENG SCI
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