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

A damping agent and supramolecular technology, applied in the field of damping materials, to achieve the effect of simple preparation process, excellent damping performance, and easy realization of scale

Active Publication Date: 2017-08-25
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multiple hydrogen bonding supramolecular polymers have shown an important role in improving polymer properties, forming complex molecular structures, and self-assembled nanostructures. Application Report of Supramolecular Polymers in Damping Materials

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0032] 1. Preparation of polyimide quaternary phosphate salt: add 7.5g trimellitic anhydride (CAS#552-30-7) into a sealed three-necked flask containing 50mL thionyl chloride, and then pour 0.75L into the three-necked flask Ammonia gas, then heat and stir the reaction at 50℃ for 5h, then add 6.5mL tetrahydroxymethylphosphorus chloride (CAS#124-64-1) into the three-necked flask, heat up to 120℃, and then heat and stir for 5h to complete the reaction. After the reaction, the solvent is removed by rotary evaporation, and the obtained light yellow substance is the polyimide quaternary phosphorous salt.

[0033] 2. Preparation of multiple hydrogen bond supramolecular polymers: Add 4g of melamine (CAS#108-78-1) and the prepared polyimide quaternary phosphonium salt to 50mL of chloroform, stir to mix evenly, and then The reaction was kept at 50°C for 3 hours; the solvent was removed, the crystal was cooled, and the product was washed with acetone solvent 3 times, and dried to obtain the ...

Embodiment 2

[0043] 1. Preparation of polyimide quaternary phosphonium salt: add 9g trimellitic anhydride (CAS#552-30-7) into a sealed three-necked flask containing 50mL thionyl chloride, and then pour 0.9L ammonia into the three-necked flask Incubate and stir for 5h at 60℃, then add 7.5mL of tetrahydroxymethylphosphorus chloride (CAS#124-64-1) into the three-necked flask, heat up to 130℃, and then heat and stir for 5h to complete the reaction. , Rotary evaporation to remove the solvent, the obtained light yellow substance is the polyimide quaternary phosphorous salt.

[0044] 2. Preparation of multiple hydrogen-bonded supramolecular polymers: Add 6g of melamine (CAS#108-78-1) and the prepared polyimide quaternary phosphonium salt to 50mL of chloroform, stir to mix evenly, and then The reaction was kept at 50°C for 3 hours; the solvent was removed, the crystal was cooled, and the product was washed 3 times with acetone solvent and dried to obtain the multiple hydrogen bond supramolecular poly...

Embodiment 3

[0055] 1. Preparation of polyimide quaternary phosphonium salt: add 10g trimellitic anhydride (CAS#552-30-7) to a sealed three-necked flask containing 50mL thionyl chloride, and then pour 1.0L ammonia into the three-necked flask Incubate and stir for 5h at 70℃, then add 9.0mL of tetrahydroxymethylphosphorus chloride (CAS#124-64-1) into the three-necked flask, increase the temperature to 140℃, and then keep stirring for 5h to complete the reaction. , Rotary evaporation to remove the solvent, the obtained light yellow substance is the polyimide quaternary phosphorous salt.

[0056] 2. Preparation of multiple hydrogen bond supramolecular polymers: Add 8g of melamine (CAS#108-78-1) and the prepared polyimide quaternary phosphonium salt to 50mL of chloroform, stir to mix evenly, and then The reaction is kept at 50°C for 3 hours; the solvent is removed, the crystal is cooled, and the product is washed with acetone solvent 3 times, and dried to obtain the multiple hydrogen bond supramol...

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Abstract

The invention discloses a supramolecular damping agent, its preparation method and application. The supramolecular damping agent is obtained by cation exchange, intercalation and self-assembly of multiple hydrogen bond supramolecular polymers and inorganic nano-montmorillonite. The supramolecular damping agent of the present invention realizes the synergistic effect of montmorillonite and multiple hydrogen bond supramolecular polymers, not only has excellent mechanical properties and heat resistance, but also has significantly improved damping performance; after testing, The damping performance, wear resistance and mechanical properties of the damping rubber material prepared by using the supramolecular damping agent of the invention are all significantly improved. In addition, the damping agent of the present invention also has the advantages of simple preparation process, good repeatability, and easy realization of scale.

Description

Technical field [0001] The invention relates to a damping agent and a preparation method and application thereof, in particular to a supramolecular damping agent, a preparation method and application thereof, and belongs to the technical field of damping materials. Background technique [0002] Damping materials are materials that convert solid mechanical vibration energy into heat energy and dissipate, and are mainly used for vibration and noise control. As people pay more and more attention to the pollution and harm caused by noise, higher requirements have been put forward for the vibration and noise reduction performance of damping materials. [0003] Supermolecule polymer (Supermolecule polymer) is a polymer in which monomer units are combined by reversible and highly oriented non-covalent interactions. According to the different bonding methods, supramolecular polymers can be divided into coordination polymers and π -π stacking polymer and hydrogen bonding polymer three type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K3/34C08G73/10C08L23/28C08L23/16C08L9/02
Inventor 曹付海王锦成张广建袁章林韦小凤
Owner SHANGHAI UNIV OF ENG SCI