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Glycerol trilaurate-containing modified silanization metal surface pretreatment agent and preparation method thereof

A technology of silanization and treatment agent, which is applied in the coating process of metal materials, etc., can solve the problems of no “self-repair” performance, poor self-repair performance, weak corrosion resistance, etc., and achieve no hanging dust, attached The effect of strong force and strong anti-corrosion performance

Active Publication Date: 2013-04-03
蚌埠尚维知识产权运营有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The silane treatment of metal surfaces has broad application prospects, but the silane film formed by the existing technology has defects such as weak corrosion resistance, uneven film formation, no "self-repair" performance or poor "self-repair" performance, which limits its development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh raw materials (kg) according to the following weight: 100 deionized water, 12 modified coupling agents, 14 ethanol, 25 vinyl triethoxysilane, 35 vinyl tri(β-methoxyethoxy) silane, Dicumyl peroxide 1.5, sodium perfluorooctanoate 0.0024, tree ash 0.4, epoxy resin emulsion 5, sodium carboxymethyl cellulose 2, lauryl ester 0.6, polyoxyethylene oleate 0.4, lanthanum acetate 0.007, phytic acid 0.25,

[0023] Preparation:

[0024] (1) Preparation of modified coupling agent

[0025] Add water-soluble nano-scale silica sol to 4-5% nano-zinc powder, 3-5% iron oxide, 4-6% 2-aminoethylheptadecenyl imidazoline, mix and heat to 95-115°C, 20-30 After a few minutes, it can be cooled;

[0026] (2) First add vinyltriethoxysilane into the stirred tank according to the formula ratio, then add dicumyl peroxide, stir at 300-400rpm for 3-4 minutes, then add vinyltris(β - Methoxyethoxy) silane, after stirring at a speed of 300-400rpm for 3-5 minutes, add sodium perfluorooctanoate an...

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PUM

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Abstract

The invention discloses a glycerol trilaurate-containing modified silanization metal surface pretreatment agent. The glycerol trilaurate-containing modified silanization metal surface pretreatment agent comprises the following components in parts by weight: 100 of deionized water, 10-15 of modified coupling agent, 10-15 of ethanol, 30-40 of vinyl-tris(beta-methoxy-ethoxy)silane, 20-30 of vinyl triethoxysilane, 1-2 of dicumyl peroxide, 0.002-0.003 of perfluorooctanesulfonic acid sodium salt, 0.3-0.5 of tree ashes, 4-6 of epoxy resin emulsion, 2-3 of carboxymethyl cellulose sodium, 0.4-1.0 of glycerol trilaurate, 0.2-0.6 of polyoxyethylene oleate, 0.005-0.01 of lanthanum acetate, and 0.1-0.3 of phytic acid. The final glycerol trilaurate-containing modified silanization metal surface pretreatment agent is prepared by modifying through a coupling agent, compounding, adding auxiliaries for distribution, mixing and reacting. The modified silanization metal surface pretreatment agent has the characteristics of being non-toxic and environment-friendly, convenient to use, compact and even for silane membranes, strong in bonding force, and good in corrosion resistance property.

Description

technical field [0001] The invention relates to metal surface treatment agent technology, in particular to a modified silylated metal surface pretreatment agent containing lauryl ester and a preparation method thereof. Background technique [0002] Corrosion of metal materials occurs around us every moment. According to statistics, about 10% of metal materials are corroded and cannot be recycled every year. This not only causes a huge waste of metal resources, but also poses a serious threat to normal production and personal safety. Surface treatment of metal materials is a commonly used anti-corrosion method. Method, the main method currently used for metal coating pretreatment is phosphating method. However, the traditional metal surface treatment methods have problems such as pollution to the environment due to the presence of toxic and harmful substances, and are no longer suitable for the increasingly high environmental requirements of human society. [0003] After th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05C23C22/34
Inventor 张德华杨家坤陈琢
Owner 蚌埠尚维知识产权运营有限公司
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