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Wide temperature range aqueous damping coating material capable of being subjected to heating drying, and preparation method thereof

A damping coating, heating and drying technology, applied in antifouling/underwater coatings, fireproof coatings, coatings, etc., can solve problems such as high damping temperature range is not wide, piezoelectric effect is weak, piezoelectric ceramics have no polarization, etc. Achieve the effect of realizing wide temperature range, high damping performance and convenient construction

Inactive Publication Date: 2016-02-03
三友(天津)高分子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN102702900A mentions that piezoelectric ceramic powder is added to water-based damping coatings, but the piezoelectric ceramics added are not polarized, and the piezoelectric effect that can be produced is relatively weak
[0006] Therefore, it has become a market demand to develop new water-based damping coatings that change the inherent shortcomings of traditional water-based damping coatings, that is, slow drying and high damping temperature range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] A method for preparing a water-based damping coating capable of heating and drying in a wide temperature range, the preparation steps are as follows:

[0050] (1) Preliminary mixing, add acrylate polymer emulsion into the production kettle, start the stirring paddle, stir at medium speed, add dispersant, defoamer, wetting agent, antifungal agent, high boiling point solvent or Ionized water and stir evenly, add inorganic filler under stirring, stir evenly, add polymer-based piezoelectric ceramic composite particles under stirring, stir evenly, add foaming agent, flame retardant, film-forming agent or plasticizer and stir evenly , add a pH regulator to adjust the pH of the mixture to the desired range, and add a thickener to adjust the consistency.

[0051] (2) Centrifugal defoaming and dispersing, put the preliminarily mixed mixture into a centrifugal defoaming and dispersing machine, and disperse at a speed of 1200 rpm for 10-15 minutes at a high speed to obtain the fin...

Embodiment 1

[0052] Embodiment 1, its prescription is:

[0053] Acrylate polymer emulsion 30 parts

[0054] 0.2 part of defoamer

[0055] Dispersant 0.2 parts

[0056] Flake mica (80 mesh) 15 parts

[0057] 10 parts of butyl rubber-based piezoelectric ceramic (PZT, PMN) composite material particles

[0058] Foam microspheres F78KD0.1 part

[0059] 2 parts propylene glycol

[0060] PH value regulator 0.5 parts

[0061] 1 part thickener

[0062] 15 parts deionized water

[0063] 75 parts of flame retardant.

[0064] Above-mentioned embodiment preparation method is as follows:

[0065] (1) Preliminary mixing, add acrylate polymer emulsion into the production kettle, start the stirring paddle, stir at medium speed, add dispersant, defoamer, propylene glycol, deionized water respectively during the stirring process, and stir evenly. Under stirring, put in flake mica and stir evenly. Add butyl rubber-based piezoelectric ceramic (PZT, PMN) composite material particles under stirring, a...

Embodiment 2

[0070] Embodiment 2, its prescription is:

[0071] Acrylate polymer emulsion 30 parts

[0072] 0.5 parts of defoamer

[0073] Dispersant 0.4 parts

[0074] Flake mica (325 mesh) 10 parts

[0075] Calcium carbonate 20 parts

[0076] Wollastonite 10 parts

[0077] 16 parts of epoxy resin-based piezoelectric ceramic (PLZT) composite material particles

[0078] Foam microspheres F78KD0.9 parts

[0079] 2 parts propylene glycol

[0080] 2 parts dipropylene glycol

[0081] 0.2 parts of pH regulator

[0082] 3 parts thickener

[0083] 0.5 parts of deionized water

[0084] 0.15 part of antifungal agent.

[0085] Above-mentioned embodiment preparation method is as follows:

[0086] (1) Preliminary mixing. Add acrylate emulsion into the production kettle, start the stirring paddle, and stir at a medium speed. During the stirring process, add dispersant, defoamer, antifungal agent, propylene glycol, dipropylene glycol, and deionized water respectively, and stir evenly. Unde...

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PUM

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Abstract

The present invention relates to a wide temperature range aqueous damping coating material capable of being subjected to heating drying, and a preparation method thereof, wherein the wide temperature range aqueous damping coating material comprises a polymer emulsion, a defoamer, a dispersant, an inorganic filler, polymer-based piezoelectric ceramic composite material particles, a foaming agent, a high boiling point solvent, a PH value adjusting agent and a thickener, the components are respectively added to a production kettle, primary uniform stirring is performed, the obtained mixture is added to a centrifugation dispersion deforming device, and uniform dispersion is performed to prepare the coating material. According to the present invention, the coating material can be subjected to heating drying so as to substantially shorten the construction time compared to the traditional aqueous damping material; the damping mechanism combines the viscoelastic damping and piezoelectric effect and the Joule's law damping mechanism, the vibration mechanical energy is consumed respectively through two ways, the one way is that the vibration mechanical energy is converted into the heat energy through the viscous movement of the polymer, the other way is that the vibration mechanical energy is converted into the electrical energy through the piezoelectric ceramic, and the converted electrical energy is further converted into the heat energy through the electric conduction filler in the composite material so as to be consumed, such that the wide temperature range aqueous damping coating material has the high damping performance in the wide temperature range.

Description

technical field [0001] The present invention relates to water-based damping coatings. In particular, it relates to a water-based damping coating capable of heating and drying in a wide temperature range for vibration and noise reduction in various occasions and a preparation method thereof. Background technique [0002] Water-based damping coatings mainly use water as a dispersant, have low VOC, and are environmentally friendly, and are gradually replacing traditional organic solvent-based damping coatings and asphalt-based damping sheets. At the same time, due to the characteristics of its coating, it can be easily coated on more complex interfaces without cutting, so it has more advantages in construction than traditional butyl rubber damping films. However, due to some disadvantages of water-based damping coatings, their wider application is also limited. [0003] Traditional water-based damping coatings dry slowly, affecting construction progress. In terms of quick-dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12C09D5/14C09D5/18
Inventor 唐斌高之香李建武吴子刚李程闫静邵凯王晓彤
Owner 三友(天津)高分子技术有限公司