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Vapor putty for vehicles as well as preparation method and application thereof

A putty, vehicle technology, applied in the direction of filling slurry, etc., can solve the problems of insufficient long-term flexibility, overall coating cracking, blistering or peeling, etc., to improve the adhesion between layers, wide applicability, easy to accept Effect

Active Publication Date: 2022-03-01
QINGYUAN HAOYU CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vehicle is used in an outdoor environment exposed to the sun and rain, especially the water vapor will cause great damage to the overall coating, especially the putty coating that plays the role of undertaking.
The putty currently used has poor water resistance and is prone to foaming or peeling coating problems
In addition, the currently used atomic ash often has insufficient long-term flexibility due to its thick scraping coating and high hardness. After one year of construction, it is easy to become brittle and cause cracks, which will cause cracks in the overall coating.

Method used

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  • Vapor putty for vehicles as well as preparation method and application thereof
  • Vapor putty for vehicles as well as preparation method and application thereof
  • Vapor putty for vehicles as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 of the present invention provides a kind of putty for vehicles and its preparation and construction method: 40 parts by mass of unsaturated polyester resin, 2 parts by mass of styrene, 1 part by mass of BYK110, 10 parts by mass of titanium dioxide, 1 part by mass of Put the bentonite into the dispersing kettle, disperse evenly and grind to a fineness of ≤25 μm, add 1 mass part of fumed silica, 0.1 mass part of cobalt naphthenate, 30 mass parts of talc, 0.1 mass part of copper naphthenate, and disperse at high speed After the fineness is ≤25μm, the moisture content is detected to be 0.040%. Add 0.500% of dehydrating agent ADDITIVE TI, 0.500% of dehydrating agent ADDITIVE OF, disperse evenly, after dehydration reaction for 2 hours, add 6 parts by mass of moisture-curable polyurethane resin, disperse for 0.5 hour, and then the atomic ash main ash can be obtained. The putty hardener consists of 60 parts by mass of cyclohexanone peroxide, 10 parts by mass of fum...

Embodiment 2

[0041] Embodiment 2 of the present invention provides a kind of putty for vehicles and its preparation and construction method: 60 parts by mass of unsaturated polyester resin, 5 parts by mass of styrene, 1 part by mass of AFCONA 4010, 1 part by mass of BYK110, 20 parts by mass of Put titanium dioxide and 2 parts by mass of bentonite into a dispersion kettle, disperse evenly and grind to a fineness of ≤25 μm, add 2 parts by mass of fumed silica, 0.5 parts by mass of cobalt naphthenate, 30 parts by mass of talc, and 10 parts by mass of kaolin , 10 parts by mass of precipitated barium sulfate, 0.5 parts by mass of copper naphthenate, dispersed at a high speed to a fineness of ≤25 μm, and the detected moisture content is 0.026%. Add 0.600% of dehydrating agent ADDITIVE TI, 0.600% of dehydrating agent ADDITIVE OF, disperse evenly, after dehydration reaction for 3 hours, add 15 parts by mass of moisture-curable polyurethane resin, disperse for 1 hour, and the atomic ash main ash can...

Embodiment 3

[0043] Embodiment 3 of the present invention provides a kind of putty for vehicles and its preparation and construction method: 50 parts by mass of unsaturated polyester resin, 3.5 parts by mass of styrene, 1.5 parts by mass of BYK110, 15 parts by mass of titanium dioxide, 1.5 parts by mass of Put bentonite into the dispersion kettle, disperse evenly and grind to a fineness of ≤25 μm, add 1.5 parts by mass of fumed silica, 0.3 parts by mass of cobalt naphthenate, 25 parts by mass of talc, 10 parts by mass of kaolin, and 5 parts by mass of precipitated sulfuric acid Barium and 0.3 parts by mass of copper naphthenate are dispersed at high speed to a fineness of ≤25 μm, and the water content is 0.038% after detection. Add 0.680% dehydrating agent ADDITIVE TI, 0.680% dehydrating agent ADDITIVE OF, disperse evenly, after dehydration reaction for 2.5 hours, add 12 parts by mass of moisture-curable polyurethane resin, disperse for 1 hour, and you can get the atomic ash main ash. The ...

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Abstract

The invention discloses putty for vehicles as well as a preparation method and application of the putty, and belongs to the field of coatings. The putty comprises main ash and a hardening agent, wherein the main ash comprises the following components in parts by weight: 40-60 parts of unsaturated polyester resin, 2-5 parts of styrene, 1-2 parts of a dispersing agent, 10-20 parts of titanium dioxide, 1-2 parts of bentonite, 1-2 parts of fumed silica, 0.1-0.5 part of cobalt naphthenate, 30-50 parts of filler, 0.1-0.5 part of copper naphthenate, 0.2-2 parts of a dehydrating agent and 6-15 parts of moisture curing polyurethane resin; the hardening agent is prepared from the following components in parts by weight: 50 to 60 parts of cyclohexanone peroxide, 7 to 10 parts of fumed silica and 25 to 35 parts of dibutyl phthalate. According to the putty disclosed by the invention, through a dehydration process and addition of moisture-cured polyurethane resin, the putty is good in long-term flexibility, water resistance and interlayer adhesive force with a coating, and the coating can be effectively prevented from cracking, bubbling or falling off.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to putty for vehicles and its preparation method and application. Background technique [0002] In recent years, my country's automobile industry has developed rapidly. With the increase of vehicle ownership, the automobile surface repair business has also increased, which has promoted a large number of applications of automobile repair coatings. Putty for vehicles is one of the commonly used vehicle repair coatings. Putty, commonly known as putty, is a commonly used embedded filling material. Putty is mainly made of unsaturated polyester resin, filler and other materials, and it is used with putty hardener. When in use, putty and putty hardener are evenly mixed in a certain proportion, and are used to fill up defects such as concave holes, pinholes, and scratches on the substrate by scraping. [0003] At present, the putty used in vehicle repair belongs to the primer coating i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 罗晖李树伟李桂琴赖浩城刘其平郭伟杰刘玉萍
Owner QINGYUAN HAOYU CHEM TECH