Multifunctional putty and preparation method thereof

A putty, multi-functional technology, applied in filling slurry and other directions, can solve problems such as difficult to adapt to the development requirements of automobiles, trains, machinery manufacturing and repair industry, long construction time, difficult to polish and other problems, and achieve excellent flexibility and adhesion, saving time for repairing, fine and smooth appearance

Active Publication Date: 2010-07-14
CHINA PAINT MFG CO SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional putty is mainly cured by COPH, which is catalyzed by cobalt compounds. The reaction speed is relatively slow, and the adhesion on the sheet metal is poor due to the large shrinkage during curing; at the same time, the traditional putty cannot be applied thickly at one time Often requires thin scraping and multiple constructions, which reduces work efficiency
[0004] In addition, during the construction of traditional putty, epoxy primer or zinc-phosphorus primer is usually sprayed as a primer, so the construction time is relatively long and the efficiency is low
At present, some colleagues use N,N-dimethylaniline as the initiator, which can properly increase the drying speed, but after curing, it is difficult to polish for a long time, and the flexibility and impact are poor.
[0005]The above factors make it difficult for traditional putty products to meet the requirements of the development of automobile, train, machinery and other manufacturing and repair industries

Method used

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Examples

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preparation example Construction

[0039] A kind of multifunctional atomic ash preparation method provided by the present invention, prepare raw material according to above-mentioned proportioning, comprise following specific steps:

[0040] The first step: Put the unsaturated polyester resin into the dispersion tank, add styrene, polymerization inhibitor, accelerator, thixotropic agent, anti-sedimentation agent at the same time and stir at 700 rpm for 8-10 minutes to obtain the first a dispersion;

[0041] Step 2: Add talcum powder to the first dispersion as mentioned above, stir at 1000-1250 rpm for 20-30 minutes, until the modified organic thixotropic agent is fully activated and dispersed evenly, and add the dispersed Wetting agent, stirred for 5-10 minutes to obtain the second dispersion;

[0042] Step 3: Add precipitated barium sulfate to the second dispersion as above, stir for 10-15 minutes at a speed of 1000-1100 rpm, wash the machine, and cool while stirring until the temperature of the ash body is l...

Embodiment 1

[0046] Embodiment 1, the composition and the weight percentage of main agent formula of this example are:

[0047] Unsaturated polyester resin: 33

Styrene: 4

Dispersion wetting agent: 0.5

Inhibitor: 0.01

Talc: 45

Accelerator: 0.03

Rutile titanium dioxide: 1

Thixotropic agent: 0.5

Barium sulfate: 20

Anti-sedimentation agent: 1

[0048] The curing agent is 50% benzoyl peroxide;

[0049] The specific preparation process steps of this example are, the first step: put the unsaturated polyester resin into the dispersion tank according to the formula amount in the above table, and add styrene, polymerization inhibitor, accelerator, thixotropic agent, anti-sedimentation agent at 700 Stirring for 8-10 minutes at a speed of rpm to obtain the first dispersion;

[0050] Step 2: Add talcum powder to the first dispersion as mentioned above, stir at 1000-1250 rpm for 20-30 minutes, until the modified organic thixotropic agent i...

Embodiment 2

[0056] Embodiment 2, the composition and the weight percentage of main agent formula of this example are:

[0057] Unsaturated polyester resin: 35

Styrene: 3.5

Dispersion wetting agent: 0.5

Inhibitor: 0.01

Talc: 45

Accelerator: 0.03

Rutile titanium dioxide: 1

Thixotropic agent: 0.5

Barium sulfate: 18.5

Anti-sedimentation agent: 1

[0058] The curing agent is 50% benzoyl peroxide;

[0059] The specific preparation process steps of this example are, the first step: put the unsaturated polyester resin into the dispersion tank according to the formula amount in the above table, and add styrene, polymerization inhibitor, accelerator, thixotropic agent, anti-sedimentation agent at 700 Stirring for 8-10 minutes at a speed of rpm to obtain the first dispersion;

[0060] Step 2: Add talcum powder to the first dispersion as mentioned above, stir at 1000-1250 rpm for 20-30 minutes, until the modified organic thixotropic age...

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Abstract

The invention discloses multifunctional putty and a preparation method thereof. The multifunctional putty is prepared from unsaturated polyester resin, styrene, talcum powder, barium sulfate, titanium pigment, polymerization inhibitor, accelerator, dispersion wetting agent, thixotropic agent and anti-settling agent in certain proportions, is reacted with benzoyl peroxide (BPO) to be solidified into a film, and is suitable for leveling and repairing metal surfaces of automobiles, trains, machinery and the like. In the multifunctional putty and the preparation method thereof provided by the invention, the prepared multifunctional putty has superior flexibility and adhesive force, can resist temperature as high as 180 DEG C on a steel plate, can be polished within 15 minutes at normal temperature, can be coated as thick as 1cm once, greatly saves the repairing time, improves the efficiency, and simultaneously has good adhesive force on various sheet metal substrates; and in addition, the putty has fine appearance and can be easily coated and scraped, and finish paint can conveniently be coated on the putty.

Description

technical field [0001] The invention relates to the field of paint preparation, in particular to a multifunctional putty and a preparation method thereof. Background technique [0002] With the rapid development of economy and science and technology, the rapid development of manufacturing and repair industries such as automobiles, trains, and machinery has put forward higher requirements for the properties of putty, such as quick drying, easy scraping, and thick coating; on steel plates, Good adhesion on various substrates such as aluminum plate and galvanized plate, etc. [0003] The traditional putty is mainly cured by COPH, which is catalyzed by cobalt compounds. The reaction speed is relatively slow, and the adhesion on the sheet metal is poor due to the large shrinkage during curing; at the same time, the traditional putty cannot be applied thickly at one time It is often required to use thin scraping and multiple constructions, which reduces work efficiency. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
Inventor 林泽聪郑臣标王文彪
Owner CHINA PAINT MFG CO SHENZHEN
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