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Modified silane surface pretreating agent containing polyoxyethylene octadecanol ether and preparation method of modified silane surface pretreating agent

A technology of stearyl polyoxyethylene ether and treatment agent, which is applied in the field of modified silylated surface pretreatment agent and its preparation, and can solve the problems of self-healing problems such as lack of "self-repairing" performance, weak corrosion resistance "Poor performance and other problems, to achieve the effect of no hanging dust, strong corrosion resistance and strong adhesion

Active Publication Date: 2013-03-20
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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  • Modified silane surface pretreating agent containing polyoxyethylene octadecanol ether and preparation method of modified silane surface pretreating agent

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Embodiment 1

[0022] Weigh raw materials according to the following weight (kg): 100 deionized water, 13 modified coupling agents, 14 ethanol, 702 35 silane coupling agents, 25 silane coupling agents KH-550, 1.5 dicumyl peroxide, and perfluorooctanoic acid Sodium 0.0025, tree ash 0.4, acrylic emulsion 5, stearyl polyoxyethylene ether 0.9, lanthanum acetate 0.05, 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, 4% iron oxide, and 5% 2-aminoethylheptadecenyl imidazoline, mix and heat to 100°C, and cool after 25 minutes;

[0026] (2) First add silane coupling agent 702 in the mixing tank according to the formula ratio, then add dicumyl peroxide, stir at 200-300rpm for 3-4 minutes, then add silane coupling agent KH-550 , after stirring at a speed of 300-400rpm for 3-5 minutes, adding sodium perfluorooctanoate and tree ash, stirring at a speed of 350-450rpm for 30-40 minutes a...

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Abstract

The invention discloses a modified silane surface pretreating agent containing polyoxyethylene octadecanol ether. The modified silane surface pretreating agent is prepared from the following raw material components in parts by weight: 100 parts of deionized water, 10-15 parts of modified coupling agent, 10-15 parts of ethanol, 30-40 parts of silane coupling agent 702, 20-30 parts of silane coupling agent KH-550, 1-2 parts of dicumyl peroxide, 0.002-0.003 part of sodium perfluorooctanoate, 0.3-0.5 part of tree ash, 4-6 parts of polyacrylic emulsion, 0.8-1.2 parts of polyoxyethylene octadecanol ether, 0.05-0.1 part of lanthanum triacetate and 0.2-0.3 part of phytic acid. The final product is obtained through modifying by using the coupling agent, compounding, adding additives, distributing, mixing and reacting. The modified silane surface pretreating agent provided by the invention has the characteristics of no toxicity, environment friendliness, convenience in use, compact and uniform silane membrane, strong adhesion and high corrosion resistance property.

Description

technical field [0001] The invention relates to metal surface treatment agent technology, in particular to a modified silylated surface pretreatment agent containing stearyl polyoxyethylene ether 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. [000...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D133/00C09D7/12C09D5/08
Inventor 杨家坤张德华徐勇
Owner 蚌埠尚维知识产权运营有限公司
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