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Method of preparing unsaturated polyester putty for automobile repair

A technology for putty and automobiles, which is applied in filling slurry and other directions, which can solve the problems that affect the quality and performance of domestic putty, the coating is easy to crack and peel, and the production process is unstable, so as to achieve good fast drying effect and improve flexibility. sex, strength-enhancing effect

Inactive Publication Date: 2012-06-20
TIANCHANG CITY TONGTIAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in recent years, the application and substitution of imports in automobiles are expanding and increasing, but domestic putty is hard after curing, difficult to polish, and has a high shrinkage rate, which makes the coating easy to crack and peel off, and the production process is not good. Stability affects the quality and performance of domestic putty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing putty for automobile repair, said putty is composed of two components of base material and curing agent, wherein the base material is composed of the following components in parts by weight, 100 parts of air-drying unsaturated polyester resin , 0.5 parts of cobalt isooctanoate, 7 parts of dimethylaniline, 0.8 parts of tert-butylcatechol, 8 parts of white carbon black, 8 parts of titanium dioxide, 55 parts of -325 mesh talc powder, 25 parts of -325 mesh diatomite powder , gas phase SiO 2 5 parts of powder, 8 parts of attapulgite, 1 part of ultramarine blue, wherein curing agent is made up of following components by weight: be 35 parts of cyclohexanone peroxide, 45 parts of benzoyl peroxide, 2 parts of acetone, white carbon 15 parts of black, described preparation method comprises the steps:

[0017] 1) Base material: Put the air-drying water-based unsaturated polyester resin into the reaction kettle according to the above ratio, and add cobalt iso...

Embodiment 2

[0021] A method for preparing putty for automobile repair, said putty is composed of two components of base material and curing agent, wherein the base material is composed of the following components in parts by weight, 100 parts of air-drying unsaturated polyester resin , 1 part of cobalt isooctanoate, 5 parts of dimethylaniline, 1.0 part of tert-butylcatechol, 6 parts of white carbon black, 10 parts of titanium dioxide, 45 parts of -325 mesh talc powder, 35 parts of -325 mesh diatomite powder , gas phase SiO 2 3 parts of powder, 10 parts of attapulgite, 0.5 part of ultramarine blue, wherein curing agent is made up of following components in parts by weight: 45 parts of cyclohexanone peroxide, 35 parts of benzoyl peroxide, 3 parts of acetone, white carbon 13 parts of black, described preparation method comprises the steps:

[0022] 1) Base material: Put the air-drying water-based unsaturated polyester resin into the reaction kettle according to the above ratio, and add coba...

Embodiment 3

[0026] A method for preparing putty for automobile repair, said putty is composed of two components of base material and curing agent, wherein the base material is composed of the following components in parts by weight, 100 parts of air-drying unsaturated polyester resin , 0.8 parts of cobalt isooctanoate, 6 parts of dimethylaniline, 0.9 parts of tert-butylcatechol, 7 parts of white carbon black, 9 parts of titanium dioxide, 50 parts of -325 mesh talc powder, 30 parts of -325 mesh diatomite powder , gas phase SiO 2 4 parts of powder, 9 parts of attapulgite, 0.8 part of ultramarine blue, wherein curing agent is made up of following components in parts by weight: be 40 parts of cyclohexanone peroxide, 40 parts of benzoyl peroxide, 2.5 parts of acetone, white carbon 14 parts of black, described preparation method comprises the steps:

[0027] 1) Base material: Put the air-drying water-based unsaturated polyester resin into the reaction kettle according to the above ratio, and a...

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PUM

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Abstract

The invention discloses a method of preparing unsaturated polyester putty for automobile repair, which includes: firstly, proportionally adding air-dry water based unsaturated polyester resin into a reactor, mixing under rotation at speed of 350-450r / min, respectively adding cobalt iso-octoate, xylidine and 4-tert-butylcatechol prior to mixing for 10-15 minutes, then adding white carbon black and titanium dioxide prior to mixing under rotation at 600-650r / min for 10-15 minutes, adding -325-mesh pulvistalci, -325-mesh diatomite powder, gaseous SiO2 powder, palygouskite and ultramarine prior to mixing under rotation at 950-1000r / min for 35-45 minutes, and using a colloid mill to grind the mixture to obtain finished base stock; secondly, proportionally adding cyclohexanone peroxide, benzoyl peroxide, acetone and white carbon black into the reactor prior to mixing under rotation at 600-800r / min for 15-25 minutes, and grinding the product of mixing into paste to obtain finished curing agent; and thirdly, well mixing the prepared base stock and the curing agent according to a proportion 100:2.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a preparation method of putty for automobile repair. Background technique [0002] The official name of putty is polymerized putty, that is, unsaturated polyester resin putty. Because of its unique advantages such as fast curing, easy grinding, less organic solvent emission, strong adhesion, and no cracking, it has become an ideal filling material with active research and rapid development at home and abroad. Widely used in automobile manufacturing, machinery, shipbuilding, locomotives, vehicle manufacturing, and repair industries. Putty is a compound product, which consists of two parts: main agent and curing agent. Agents (such as fumed silica, organic bentonite) are mixed and ground. The curing agent is composed of organic peroxides (such as cyclohexanone peroxide, methyl ethyl ketone peroxide, etc.), and pigments. Putty with excellent performance should have good air-dryi...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 卢齐元
Owner TIANCHANG CITY TONGTIAN CHEM
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