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Polymer concrete nanometer damping material for reducing vibration and lowering noise

An interpenetrating network, nanoparticle technology, applied in the field of polymer concrete nano-damping materials, can solve the problems of strength and damping that are not provided.

Active Publication Date: 2008-12-17
SHANGHAI QIYAO HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it does not provide an effective solution to the contradiction between strength and damping

Method used

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  • Polymer concrete nanometer damping material for reducing vibration and lowering noise
  • Polymer concrete nanometer damping material for reducing vibration and lowering noise

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0077] The preparation method of polymer concrete of the present invention comprises the steps:

[0078] Provide 1 weight part of interpenetrating network nanoparticles with a particle size of 50nm-100nm; 11-31 weight parts of polymer matrix; 58-174 weight parts of concrete aggregate, and mix the above components to obtain the concrete.

[0079] Preferably, the interpenetrating network nanoparticles are dispersed in an organic solvent to obtain dispersed interpenetrating network nanoparticles, and the obtained dispersed interpenetrating network nanoparticles are used for mixing with other components. More preferably, the organic solvent is ethanol. Preferably, the dispersion temperature is 50-90°C.

[0080] For example, specifically: first, the nanoparticles are dissolved in ethanol at an appropriate temperature, and blended with the polymer matrix, thereby well solving the problem of uniform dispersion of the nanoparticles in the polymer matrix of the concrete.

[0081] The...

Embodiment 1

[0089] Preparation:

[0090] The nanocomposite material for vibration and noise reduction consists of the following components by weight:

[0091] 1 part of nanoparticles composed of 1:1 mole fraction of styrene and n-butyl acrylate as the matrix (the particles shown are core-shell structure. Styrene is the core, and n-butyl acrylate is the shell);

[0092] 13 parts of polymer matrix, said polymer matrix is ​​epoxy resin E44 (Shanghai Resin Factory): 10 parts, curing agent 651 (Shanghai Kailin Paint Factory): 3 parts;

[0093] Diluent: 2.5 parts of ethanol above 95%;

[0094] Aggregate: 40 parts of 8mm quartz sand, 32 parts of 3mm quartz sand.

[0095] Blending method:

[0096] 1. Dissolve the above-mentioned amount of nanoparticles in 1 part of alcohol at 50°C to 80°C, and mix for 3 minutes;

[0097] 2. Blend epoxy resin E44: 10 parts, curing agent 651: 3 parts; 1.5 parts 99% alcohol for 3 minutes to form a polymer matrix;

[0098] 3. Add the fused nanoparticles to the b...

Embodiment 2

[0102] Adopt the same technical scheme as Example 1, the difference is that the weight components are different; the weight components are as follows:

[0103] 1 part of nanoparticles composed of 1:1 mole fraction of styrene and n-butyl acrylate as the matrix (the particles shown are core-shell structure. Styrene is the core, and n-butyl acrylate is the shell);

[0104] 26 parts of polymer matrix, described polymer matrix is ​​epoxy resin E44 (Shanghai Resin Factory): 20 parts, curing agent 651 (Shanghai Kailin Paint Factory): 6 parts;

[0105] Diluent: 5 parts of ethanol above 95%;

[0106] Aggregate: 80 parts of 8mm quartz sand, 3mm quartz sand: 64 parts.

[0107] Blending method:

[0108] 1. Dissolve the above-mentioned amount of nanoparticles in 2 parts of alcohol at 50°C to 80°C, and mix for 3 minutes;

[0109] 2. Blend epoxy resin E44: 20 parts, curing agent 651: 6 parts; 3 parts of 99% alcohol for 3 minutes to form a polymer matrix;

[0110] 3. Add the fused nanopar...

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Abstract

This invention provides a combinations used in polymer concrete. The combinations mentioned include the following components: interpenetrating polymer networks (IPN) nano-particles one weight share; described IPN nano-particle size of the 50nm - 100nm; Polymer matrix weight of 11 ~ 31 copies; Concrete Aggregate 58 ~ 174 copies. The invention of the combination can be used to obtain polymer concrete that not only have the necessary strength and could improve the damping loss factor, but also for industrial application.

Description

technical field [0001] The invention relates to a polymer concrete, in particular to a polymer concrete nanometer damping material. Background technique [0002] Polymer concrete refers to concrete that only uses polymers as bonding materials. Commonly used polymer concrete bonding materials include epoxy resin, furan resin, unsaturated polyester, vinyl ester resin, acrylate and other polymers. Epoxy resins are one of the most widely used and versatile polymer concrete bonding materials. [0003] Compared with conventional cement concrete, polymer concrete has better durability (including water resistance, freeze-thaw resistance, corrosion resistance, etc.), and has good mechanical properties (including compressive strength, flexural strength, etc.). Another advantage of polymer concrete is that it has good damping properties and can be used in vibration and noise reduction projects to control vibration and noise. At present, using the damping characteristics of polymer c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/02C04B16/04C04B14/06
Inventor 周璞沈建平周哲韩华周炎朱美芳
Owner SHANGHAI QIYAO HEAVY IND CO LTD
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