阅读说明：本技术 一种醇酸树脂类自干型腻子及其制备方法 (Alkyd resin air-drying putty and preparation method thereof ) 是由 徐国宏 于 2020-08-12 设计创作，主要内容包括：本发明公开一种醇酸树脂类自干型腻子,先将改性醇酸树脂18.5％、醋酸正丁酯5.4％、分散剂0.6％、气相二氧化硅1％、聚酰胺蜡1％、钛白粉20％、氧化铁黄2％、超细优质滑石粉18.5％和硫酸钡12％进行混合搅拌,再加入膨润土1％进行混合搅拌,最后加入硝化棉溶液20％进行搅拌,制得自干型腻子相比以往传统的硝基底漆,其涂装过程大幅减少挥发性有机物的排放量,符合我国现行环保标准要求,还方便提高涂装效率、缩短了维修工时。(The invention discloses an alkyd resin self-drying putty, which is prepared by mixing and stirring 18.5% of modified alkyd resin, 5.4% of n-butyl acetate, 0.6% of dispersing agent, 1% of fumed silica, 1% of polyamide wax, 20% of titanium dioxide, 2% of iron oxide yellow, 18.5% of superfine high-quality talcum powder and 12% of barium sulfate, adding 1% of bentonite, mixing and stirring, and finally adding 20% of nitrocotton solution for stirring.)

1. The alkyd resin air-drying putty is characterized by being prepared from the following raw materials in percentage by weight: 18.5 percent of modified alkyd resin, 5.4 percent of n-butyl acetate, 0.6 percent of dispersant, 1 percent of fumed silica, 1 percent of polyamide wax, 20 percent of titanium dioxide, 2 percent of iron oxide yellow, 18.5 percent of superfine high-quality talcum powder, 12 percent of barium sulfate, 1 percent of bentonite and 20 percent of nitrocotton solution.

2. The alkyd resin air-drying putty as set forth in claim 1, wherein: the solid content of the nitrocotton in the nitrocotton solution is 23.2%.

3. The method for preparing the alkyd resin self-drying putty as claimed in claim 1, which is characterized by comprising the following steps:

step 1: putting 18.5% of modified alkyd resin, 5.4% of n-butyl acetate, 0.6% of dispersing agent, 1% of fumed silica, 1% of polyamide wax, 20% of titanium dioxide, 2% of iron oxide yellow, 18.5% of superfine high-quality talcum powder and 12% of barium sulfate into a dispersing cylinder, and dispersing at high speed for 20-30 minutes under the condition of 1200-1600r/pm to obtain a first mixed material with the fineness of less than 60 microns for later use;

step 2: 1% of bentonite is added into the first mixed material in the step 1, and the bentonite is dispersed for 20 minutes at a high speed under the condition of 1200-1600r/pm to obtain a second mixed material with the fineness less than 60 microns for later use;

and step 3: and (3) putting 20% of the nitrocotton solution into the second mixed material in the step (1), and dispersing at a high speed for 20 minutes under the condition of 1000-1200r/pm, so that the second mixed material and the nitrocotton solution are uniformly mixed to obtain a finished product for later use.

4. The method for preparing alkyd resin self-drying putty as claimed in claim 3, wherein the method comprises the following steps: and (3) if the finished product prepared in the step (3) is applied to small-area quick repair, adopting branch-mounted extrusion packaging.

5. The method for preparing alkyd resin self-drying putty as claimed in claim 3, wherein the method comprises the following steps: and (3) if the finished product prepared in the step (3) is applied to large-area quick repair, filling and packaging by adopting a large container.

Technical Field

The invention relates to a primer used in automobile repairing and coating operation, in particular to an acid resin self-drying putty and a preparation method thereof.

Background

In the past coating, the automobile repair primer is sprayed by multi-purpose nitrolacquer, and the problems of low construction solid content, long drying time, thin one-time sprayed paint film, poor filling property and mark covering property and the like exist, the social holdup of the current vehicles is huge, and the requirements on repair coating are fast, efficient, energy-saving and environment-friendly as far as possible.

Disclosure of Invention

In view of the above, the present invention aims to provide an alkyd resin air-drying putty which not only greatly reduces the emission of volatile organic compounds after coating, but also conveniently improves the coating efficiency and shortens the maintenance time, and also provides a preparation method for producing the alkyd resin air-drying putty.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the alkyd resin air-drying putty is prepared from the following raw materials in percentage by weight: 18.5 percent of modified alkyd resin, 5.4 percent of n-butyl acetate, 0.6 percent of dispersant, 1 percent of fumed silica, 1 percent of polyamide wax, 20 percent of titanium dioxide, 2 percent of iron oxide yellow, 18.5 percent of superfine high-quality talcum powder, 12 percent of barium sulfate, 1 percent of bentonite and 20 percent of nitrocotton solution.

Further, the solid content of the nitrocotton in the nitrocotton solution is 23.2%.

A preparation method of alkyd resin self-drying putty comprises the following steps:

step 1: putting 18.5% of modified alkyd resin, 5.4% of n-butyl acetate, 0.6% of dispersing agent, 1% of fumed silica, 1% of polyamide wax, 20% of titanium dioxide, 2% of iron oxide yellow, 18.5% of superfine high-quality talcum powder and 12% of barium sulfate into a dispersing cylinder, and dispersing at high speed for 20-30 minutes under the condition of 1200-1600r/pm to obtain a first mixed material with the fineness of less than 60 microns for later use;

step 2: 1% of bentonite is added into the first mixed material in the step 1, and the bentonite is dispersed for 20 minutes at a high speed under the condition of 1200-1600r/pm to obtain a second mixed material with the fineness less than 60 microns for later use;

and step 3: and (3) putting 20% of the nitrocotton solution into the second mixed material in the step (1), and dispersing at a high speed for 20 minutes under the condition of 1000-1200r/pm, so that the second mixed material and the nitrocotton solution are uniformly mixed to obtain a finished product for later use.

Further, if the finished product prepared in the step 3 is applied to small-area rapid repair, branch-mounted extrusion packaging is adopted;

further, if the finished product prepared in the step 3 is applied to large-area rapid repair, a large container is adopted for filling and packaging.

The technical effects of the invention are mainly reflected in the following aspects: 18.5 percent of modified alkyd resin, 5.4 percent of n-butyl acetate, 0.6 percent of dispersant, 1 percent of fumed silica, 1 percent of polyamide wax, 20 percent of titanium dioxide, 2 percent of iron oxide yellow, 18.5 percent of superfine high-quality talcum powder and 12 percent of barium sulfate are mixed and stirred, then 1 percent of bentonite is added for mixing and stirring, and finally 20 percent of nitrocotton solution is added for stirring to prepare the self-drying putty.

Detailed Description

The embodiments of the present invention are described in further detail to make the technical solutions of the present invention easier to understand and master.