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Modified silanized metal surface pre-treating agent containing polyoxyethylene oleate and preparation method thereof

A technology of acid polyoxyethylene ester and treatment agent, which is applied in the field of modified silanized metal surface pretreatment agent and its preparation, can solve the problem of not having "self-healing" performance, poor self-repairing performance and weak corrosion resistance and other problems, to achieve the effect of no ash, strong adhesion and strong corrosion resistance

Active Publication Date: 2014-12-10
蚌埠尚维知识产权运营有限公司
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  • Summary
  • 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 propanol, 25 silane coupling agents KH-69, 35 silane coupling agents KH-912, dicumyl peroxide 1.5, sodium perfluorooctanoate 0.0024, monobutyl tin trichloride 0.4, acrylic acid emulsion 5, sodium carboxymethyl cellulose 2, Span 60 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-aminoethyl heptadecenyl imidazoline, mix and heat to 110°C, after 20-30 minutes Just cool down;

[0026] (2) Add the silane coupling agent KH-69 first according to the formula ratio in the stirred tank, then add dicumyl peroxide, stir at 300-400rpm for 3-4 minutes, then add the silane coupling agent KH -912, after stirring at a speed of 300-400rpm for 3-5 minutes, add sodium perfluoro...

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PUM

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Abstract

The invention discloses a modified silanized metal surface pre-treating agent containing polyoxyethylene oleate. The pre-treating agent is prepared from the following raw material components in parts by weight: 100 parts of de-ionized water, 10-15 parts of modified coupling agent, 10-15 parts of propyl alcohol, 30-40 parts of silane coupling agent KH-912, 20-30 parts of silane coupling agent KH-69, 1-2 parts of dicumyl peroxide, 0.002-0.003 part of sodium perfluorooctane sulfonate, 0.3-0.5 part of butyltin trichloride, 4-6 parts of acroleic acid emulsion, 2-3 parts of sodium carboxymethyl cellulose, 0.4-1.0 part of Span 60, 0.2-0.6 part of polyoxyethylene oleate, 0.005-0.01 part of lanthanum acetate, and 0.1-0.3 part of phytic acid. By adopting coupling agent modification and compounding, and adding auxiliary agents, the mixture reacts to obtain the end product. The modified silanized metal surface pre-treating agent has the characteristics of being non-toxic, environment-friendly, and convenient to use; and a silane film is compact, uniform, large in adhesive force and good in corrosion resistance.

Description

technical field [0001] The invention relates to metal surface treatment agent technology, in particular to a modified silanized metal surface pretreatment agent containing polyoxyethylene oleic acid 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. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D7/12
Inventor 杨家坤张德华王爱伟
Owner 蚌埠尚维知识产权运营有限公司