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Multi-component hybrid damping composite material and preparation method

A technology of composite materials and hybrid materials, applied in the field of engineering materials preparation, to achieve good mechanical properties, good impact resistance, and excellent vibration reduction effects

Inactive Publication Date: 2016-08-31
DANYANG YUSHENG TEXTILE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the loss peak shifts to the high temperature direction, the practical application of hybrid damping materials is limited to a certain extent. Therefore, it is necessary to further study the new vibration reduction mechanism and develop a hybrid vibration damping compound with controllable loss peak temperature. Material

Method used

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  • Multi-component hybrid damping composite material and preparation method

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Experimental program
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Effect test

Embodiment 1

[0018] Two layers of hybrid materials are used to construct the multi-component hybrid anti-damping composite material. The mass ratio of each component of the multi-component hybrid adopts CPE:ZKF:EBP:PC=60:32:6:2, CPE and the first layer of multi-component hybrid The volume percentage of the body is 60:40,

[0019] Prepare multivariate hybrids:

[0020] 1) Preparation of PC (polycarbonate), heating polycarbonate to 150-160°C to obtain polycarbonate in molten state, set aside;

[0021] 2) Take the CPE powder and add it to the molten PC obtained in step 1), and stir evenly, then naturally cool to room temperature to obtain a complex, and then put the complex into the liquid nitrogen upper space in the liquid nitrogen pool at -160°C, Keep warm for 15 minutes, take it out, crush and grind to get powder, set aside;

[0022] 3) Put the powder obtained in step 2) into the roller and knead for 5 minutes, then add ZKF and mix with a cutter, knead for 15 minutes, after kneading even...

Embodiment 2

[0026] The three-layer hybrid material is used to construct the multi-component hybrid anti-damping composite material. The mass ratio of each component of the multi-component hybrid adopts CPE:ZKF:EBP:PC=60:32:6:2, and the CPE and the first layer of multi-component hybrid The volume percentage of the hybrid body and the second-layer multi-component hybrid body is 60:30:10.

[0027] Prepare multivariate hybrids:

[0028] 1) Preparation of PC (polycarbonate), heating polycarbonate to 150-160°C to obtain polycarbonate in molten state, set aside;

[0029] 2) Take the CPE powder and add it to the molten PC obtained in step 1), and stir evenly, then naturally cool to room temperature to obtain a complex, and then put the complex into the liquid nitrogen upper space in the liquid nitrogen pool at -160°C, Keep warm for 15 minutes, take it out, crush and grind to get powder, set aside;

[0030] 3) Put the powder obtained in step 2) into the roller and knead for 5 minutes, then add Z...

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Abstract

The invention discloses a multi-component hybrid damping composition material and a preparation method, and relates to preparation of engineering materials. Components of a multi-component hybrid material are in gradient change from top to bottom according to the thickness of the composite material, wherein a base material adopts chlorinated polyethylene CPE; a multi-component hybrid is a mixture of ZKF ((2-hydroxyl-3-cyclohexyl-5methyl)-benzene ring), EBP (2,2-methylene bis(4-ethyl-6-tert-butylphenol)) and PC (polycarbonate); the mass percent of the base material to the multi-component hybrid is (50-60):(50-40); the mass percent of each component in the multi-component hybrid is ZKF:EBP:PC=(60-80):(30-15):(10-5); by selecting ZKF and EBP, reversibility of breakage-reconstruction of a hydrogen-bond network between a polar substrate in the hybrid and a multifunctional organic micromolecule is combined, so that multiple energy dissipation mechanisms are achieved, and therefore, the multi-component hybrid damping composite material has excellent damping and silencing functions; anti-plastifying effect and plastifying effect are achieved in the composite material, and synergistic effect is generated, so that the position of a vibration absorbing peak of the integral hybrid material is regulated, and therefore, the material achieves satisfying damping effect under different using temperatures.

Description

technical field [0001] The invention relates to the preparation of engineering materials, in particular to a multi-component hybrid anti-damping composite material and a preparation method. Background technique [0002] The polymer damping material is based on the viscoelasticity of the polymer, that is, in the glass transition region, the internal friction generated by the molecular chain movement partially converts the mechanical energy or sound energy of the external field into heat energy dissipation, and has the function of vibration reduction. Functional materials for noise reduction are widely used in aerospace, transportation, mechanical equipment, construction, and daily life. Usually one of the evaluation criteria for damping materials is the level of the loss peak (tanδ) in the glass transition region. A single high polymer often needs to be modified because the damping loss peak is not high enough. [0003] However, in the compatible system of polar polymers an...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L69/00C08K5/13B32B27/22B32B37/10
CPCC08L23/286B32B27/22B32B37/10B32B2307/306B32B2307/558B32B2307/56C08K2201/014C08L2201/08C08L69/00C08K5/13
Inventor 晏雄陈静王新厚陈夕方
Owner DANYANG YUSHENG TEXTILE NEW MATERIAL
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