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A kind of microspherical ion exchange anti-flash rust and anti-rust metal primer and preparation method thereof

An ion exchange, anti-flash rust technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of poor paint film compactness, poor flash rust resistance, poor anti-rust effect, etc., to achieve uniform paint film, strong adhesion, paint Excellent effect of film compactness

Active Publication Date: 2020-12-01
哈尔滨雨阳佳泰环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the deficiencies of existing anti-rust primer products, the purpose or technical problem to be solved of the present invention is to provide a water-based anti-rust primer suitable for metal substrates, which can solve the problem of water-based anti-rust primers in the prior art. Poor flash rust resistance, poor anti-rust effect, poor adhesion, and poor paint film compactness

Method used

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  • A kind of microspherical ion exchange anti-flash rust and anti-rust metal primer and preparation method thereof
  • A kind of microspherical ion exchange anti-flash rust and anti-rust metal primer and preparation method thereof
  • A kind of microspherical ion exchange anti-flash rust and anti-rust metal primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0049] Embodiment A: Preparation of microspherical silica gel containing calcium ions

[0050] Prepare 3-aminopropyltriethoxysilane, ethanol, deionized water, 25% ammonia water, anhydrous calcium chloride, PAA-Br, dichloromethane and other raw materials, and prepare them according to the following steps:

[0051] Disperse a certain amount of silicon dioxide in a mixed solution of ethanol: water = 5: 1 by ultrasonic waves, then add 25% ammonia water and 3-aminopropyltriethoxysilane, stir at 25°C for 24h, filter, wash, Vacuum drying for 10 hours to obtain A;

[0052] Disperse A in dichloromethane and NaHPO 4 -NaH 2 PO 4 (pH=6) into the mixed solution, add PAA-Br, 0°C, 10min, then raise the temperature to 25°C, stir for 24h, centrifuge, wash, and vacuum dry for 10h to obtain A 1 ;

[0053] Will A 1 Disperse in deionized water, add 3% CaCl2, stir for 24 hours, centrifuge, wash, and vacuum dry for 10 hours to obtain the surface calcium ionized silica A 2 .

[0054] figure ...

Embodiment B

[0055] Example B: Formulation of a mixture of hydroxyethyl cellulose ether and non-associative polyurethane

[0056] Prepare Dow Chemical's 250MBR (hydroxymethyl cellulose ether with a number average molecular weight of 25000-30000) and Names Deqian's HX6008 (non-associative polyurethane), according to m (250MBR): m ( HX6008) = 1:9 for preparation, using a rotational viscometer (No. 3 rotor) to measure the viscosity of the mixture, which was 30000pa.s.

Embodiment 1

[0057] Embodiment 1: preparation is applicable to the waterborne antirust primer of metal substrate

[0058] Prepare each raw material: 120g deionized water, 350g polyacrylic acid emulsion (AS9519 of Dow Chemical Company), 80g hollow structure polymer emulsion (excellent creation E of Dow Chemical Company), 30g film-forming aid (Eastman Company's Alcohol ester 12), 15g thickening agent (250MBR of Dow Chemical Company and the HX6008), 0.5g pH adjuster (DMAE of Hai Mingsi Company), 0.5g anti-flash rust agent (dimension of Hai Mingsi Company FA 179), 250g body filler (1250 mesh heavy calcium carbonate of Linkou Omiya Company), 25g microspherical calcium ion-containing silica gel (AC3 of Grace Company), 15g strontium phosphate (SZP-391 of Halox Company), 0.5g Bentonite (Hemingsi company's LT).

[0059] Then proceed as follows to prepare:

[0060] Put deionized water into the mixer, and stir for 10 minutes at 600 rpm;

[0061] Under stirring conditions, add film-forming aid...

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Abstract

The invention provides aqueous anti-rust metal primers, and in particular relates to microspheric ion exchange flash-rust-resistant anti-rust metal primer and a preparation method thereof. The primeris prepared from polyacrylic emulsion, polymer emulsion of a hollow structure, a coalescing agent, a thickening agent, a pH regulator, a flash-rust-resistant agent, a body filler, microspheric calcium-ion-containing silica gel, strontium phosphate, bentonite and water. The environmentally friendly anti-rust metal primer provided by the invention has excellent salt fog resistance and flash rust resistance; the film density is excellent, and the dry film of 0.5 mm can bear a water pressure of 0.3MPa for 30 minutes; the adhesive force is extremely high, and the national standard of automotive anti-rust primers can be reached; the content of prohibited substances is far lower than the content required in relevant laws and regulations.

Description

technical field [0001] The invention relates to a metal antirust primer, in particular to a microspherical ion exchange anti-flash rust and antirust metal primer and a preparation method thereof. Background technique [0002] The loss caused by metal corrosion to human beings is staggering, and the global economic loss caused by corrosion is about 1,000 billion U.S. dollars every year. According to the latest statistics from relevant departments, the economic loss of corrosion in my country is as high as 280 billion yuan, accounting for about 4% of the gross national product (GNP), and about 30% of steel is corroded and scrapped every year. Corrosion is not only causing huge economic losses, but also stimulating the development of anti-corrosion coatings. At present, countries all over the world have competed to develop a variety of corrosion coatings with good performance, which are widely used in various corrosion environments and have produced obvious economic benefits. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D125/14C09D5/08C09D7/44C09D7/62C09D7/65C09D7/61
CPCC08K2003/265C08K2003/325C08K2201/011C08L2205/035C08L2205/20C09D5/08C09D125/14C09D133/04C08L1/284C08L75/04C08K13/06C08K9/10C08K3/36C08K3/26C08K3/32C08K3/346
Inventor 郑荣荣张文惠于海泉杨洋王维全吕魁奇
Owner 哈尔滨雨阳佳泰环保新材料有限公司
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