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A silica and treatment agent technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of gradually softening and thinning, restricting the use area, etc., and achieve the effect of improving anti-swelling, low production cost, and high mechanical strength
Inactive Publication Date: 2016-08-17
HEFEI ZHENGHAO MECHANICAL TECH
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[0003] Guo Jun proposed in the article "Development of PVA Water-Soluble Polymer Peelable Antirust Film" that by adding antirust agent and other additives to polyvinyl alcohol, it is placed in a beaker in a constant temperature water bath at a temperature of 99°C. Heating in middle temperature until completely dissolved, and then uniformly coating it on the metal surface by coating casting method, drying to form a film, and measuring the performance of the film. The experimental results show that the surface has good rust resistance. In cold water below 40 ° C, almost It is completely insoluble in water, but when placed in hot water above 40°C, the film will gradually become soft and thin, and finally dissolve completely, so the application area is limited
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[0013] A treatment agent for adding silica metal, prepared from the following raw materials in parts by weight (kg): polyvinyl alcohol 40, polyethylene glycol 12, emulsifier op100.4, glycerol 0.3, triethanolamine 0.6, Tween 800.2, Benzotriazole 6, Sodium Benzoate 6, Sodium Lauryl Sulfate 2, 3 (Trihydroxysilyl) Propane Sulfonic Acid 5, Silica Sol 3, Sodium Hydroxide 1.2, Polyetheramine 10, Succinic dialdehyde 0.4, nanocellulose 4, sodium isooctanoate 2.2, deionized water in proper amount.
[0014] Described a treatment agent for adding silicon dioxide metal is prepared by the following specific steps:
[0015] (1) Dissolve 3(trihydroxysilyl)propanesulfonic acid, silica sol and sodium hydroxide with 4 times, 2 times and 6 times of deionized water respectively to obtain a solution, and dissolve the silica sol at a rate of 3ml / min Add it dropwise to 3(trihydroxysilyl)propanesulfonic acid solution, stir evenly, adjust the pH value to 5 with sodium hydroxide, stir and raise the tem...
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Abstract
The invention discloses a silicon-dioxide-added treating agent for metals. The treating agent is prepared from the following raw materials in parts by weight: 40-50 parts of polyvinyl alcohol, 12-15 parts of polyethyleneglycol, 0.4-0.6 part of emulsifier op10, 0.3-0.5 part of glycerol, 0.6-0.8 part of triethanolamine, 0.2-0.4 part of Tween 80, 6-8 parts of benzotriazole, 6-7 parts of sodium benzoate, 2-3 parts of lauryl sodium sulfate, 5-7 parts of 3-(trihydroxysilyl)propane-1-sulfonic acid, 3-4 parts of silica sol, 1.2-2 parts of sodium hydroxide, 10-14 parts of polyetheramine, 0.4-0.6 part of succinic aldehyde, 4-5 parts of nano cellulose, 2.2-3 parts of sodium isooctoate and a right amount of deionized water. The metal surface treating agent has the advantages of low production cost, high performance, favorable rust and corrosion resistance, high adhesive force, low shedding tendency, favorable water resistance, favorable oil resistance and long anticorrosion time, can form a film on the workpiece surface, and is worthy of popularization.
Description
technical field [0001] The invention relates to the technical field of metal surface treatment agents, in particular to a treatment agent for adding silicon dioxide to metal. Background technique [0002] According to statistics, every year in the world, steel products with a total weight equivalent to 10-20% of the annual metal output cannot be used due to corrosion, rust and other reasons. For this reason, people have adopted various anti-rust methods to avoid rust and reduce loss. There are various kinds of antirust agents, among which sodium nitrite has been favored and widely used because of its excellent antirust performance and low price. A lot of research and development work has been carried out, and a variety of alkyl, alkoxy, halo, naphthoic acids and their derivatives, nitrobenzoic acids, and borates, borates, and molybdates have been prepared. The main material to replace the new water-soluble rust inhibitor of sodium nitrite. Although these new antirust agen...
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