Damping composition containing hydrophilic dispersing type PVC resin and preparation method of damping composition

A PVC resin, dispersed technology, applied in the field of damping materials, can solve the problems of being unable to be used as damping materials, difficult to clean, poor mechanical strength of foaming materials, etc., to achieve convenient storage, transportation and construction spraying, large steric hindrance effect, The effect of increased internal friction

Active Publication Date: 2019-03-08
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, only through mechanical blending, the foaming agent is difficult to disperse evenly in the coating, and the foaming uniformity of the material is poor, and it is easy to cause local foaming to be too high or too low
Moreover, the mechanical strength of the foam material is poor, and the paint is oil-soluble, so it is difficult to clean up after construction
[0008] Therefore, the existing coatings based on PVC resin may contain a large amount of organic solvents on the one hand, which not only pollutes the environment, but also easily produces adverse effects on the health of operators; on the other hand, existing PVC coatings are often added with other Components, such as acrylic-based components, make the mechanical properties and damping properties of the material poor, and cannot be used as damping materials
In addition, the current coatings based on PVC resin are generally oil-soluble, and it is difficult to clean up after mechanized construction.

Method used

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  • Damping composition containing hydrophilic dispersing type PVC resin and preparation method of damping composition
  • Damping composition containing hydrophilic dispersing type PVC resin and preparation method of damping composition
  • Damping composition containing hydrophilic dispersing type PVC resin and preparation method of damping composition

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preparation example Construction

[0038] The present invention also discloses a preparation method of a damping composition containing hydrophilic dispersed PVC resin, the preparation method comprising the following steps:

[0039] 1) At normal temperature, put the hydrophilic dispersed PVC resin, loose spherical PVC resin, filler, and stabilizer in parts by weight into a high-speed disperser for 3 to 5 minutes;

[0040] 2) At room temperature, add plasticizers and lubricants in parts by weight to the high-speed disperser in step 1) to disperse until a uniform paste coating is obtained, vacuumize and stir for 4-10 minutes, and place Aging 18-32 hours.

[0041] 3) Take out the paint prepared in step 2), spray it on the electrophoresis plate, and plasticize it at 120-160° C. for 25-40 minutes to make a 3mm thick sheet.

Embodiment 1

[0043] A method for preparing a hydrophilic dispersed PVC-based damping composition material, comprising the following steps:

[0044] 1) Take each component by the following parts by weight:

[0045]

[0046] Described hydrophilic dispersion type PVC resin obtains by polyvinylbenzene sulfonate sodium, polybutyl acrylate and polyvinyl chloride copolymerization, shown in its structural formula (I):

[0047]

[0048] Wherein: the degree of polymerization of the loose spherical PVC resin is 500, the filler is calcium carbonate, the plasticizer is dioctyl phthalate, the lubricant is liquid paraffin, and the stabilizer is a calcium-zinc stabilizer, specifically ricinoleic acid Calcium and zinc laurate are mixed in a mass ratio of 1:1.

[0049] 2) At normal temperature, put the hydrophilic dispersed PVC resin in parts by weight, loose spherical PVC resin, filler, and stabilizer into a high-speed disperser and disperse for 3 minutes;

[0050] 3) At normal temperature, put the...

Embodiment 2

[0053] A method for preparing a hydrophilic dispersed PVC-based damping composition material, comprising the following steps:

[0054] 1) Take each component by the following parts by weight:

[0055]

[0056] Described hydrophilic dispersion type PVC resin obtains by polyvinylbenzene sulfonate sodium, polyhexyl acrylate and polyvinyl chloride copolymerization, shown in its structural formula (I):

[0057]

[0058] Wherein: the degree of polymerization of the loose spherical PVC resin is 1250, the filler is mica powder, the plasticizer is dioctyl terephthalate, the lubricant is naphthenic oil, and the stabilizer is a lead salt composite stabilizer, specifically For lead stearate.

[0059] 2) At normal temperature, put the hydrophilic dispersed PVC resin in parts by weight, loose spherical PVC resin, filler, and stabilizer into a high-speed disperser and disperse for 3 minutes;

[0060] 3) At normal temperature, put the plasticizer and lubricant in parts by weight into ...

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Abstract

The invention discloses a damping composition containing hydrophilic dispersing type PVC resin. The damping composition containing the hydrophilic dispersing type PVC resin comprises the following components: the hydrophilic dispersing type PVC resin, loose type spherical PVC resin, filler, a plasticizer, a lubricating agent and a stabilizing agent. According to the damping composition, the loosetype spherical PVC resin is used as a matrix, and by the hydrophilic dispersing type PVC resin, a coating can be waterborne. The damping composition is in low VOC type, and has the advantages of environmental protection, mechanical spraying capability, good properties such as mechanical property and damping property and the like.

Description

technical field [0001] The invention relates to a special damping material for automobiles, in particular to a damping composition containing hydrophilic dispersed PVC resin and a preparation method thereof, which are widely used in many fields such as automobile manufacturing, shipbuilding, aerospace, and mechanical equipment. Background technique [0002] The vibration and noise generated by mechanical operation not only pollute the environment, but also affect the machining accuracy and product quality of the machine, accelerate the fatigue damage of the mechanical structure, and shorten the service life of the machine. The damping material based on PVC is a new type of viscoelastic damping material that can reduce noise and shock, and because of its sprayable characteristics, it can be better coated in many dead corners of construction, and has a wider application field and Application prospects. [0003] Existing solvent-based damping coatings are mainly made of coal t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/06C09D187/00C09D7/61C09D7/63
CPCC08K2003/265C09D7/61C09D7/63C09D127/06C08L87/005C08K3/26C08K5/12C08K5/098
Inventor 郝同辉黄宸张群朝蒋涛
Owner HUBEI UNIV
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