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Air-dried type acrylic ester waterproof paint and preparation method thereof

An acrylate and waterproof coating technology, applied in the coating and other directions, can solve the problem that the sealing wax cannot effectively solve the problems of oxygen inhibition and incomplete curing, and achieves the effect of flexible design formula, good film performance and good curing effect.

Active Publication Date: 2016-01-13
FOSHAN KESHUN BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of incomplete curing due to the fact that the sealing wax cannot effectively solve the problem of oxygen inhibition in the actual construction of acrylate waterproof coatings, a reactive air-drying agent resin is introduced to replace the sealing wax

Method used

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  • Air-dried type acrylic ester waterproof paint and preparation method thereof
  • Air-dried type acrylic ester waterproof paint and preparation method thereof
  • Air-dried type acrylic ester waterproof paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An air-drying acrylic waterproof coating is composed of component A and component B, and its formula composition is shown in Table 1.

[0032] Table 1 Embodiment 1 coating formula

[0033]

[0034] The preparation method of the reactive air-drying agent resin in embodiment 1:

[0035] Under the protection of nitrogen, accurately weigh 40g of IPDI aliphatic isocyanate, 0.05g of catalyst T-120.05g, 30g of trimethylolpropane diallyl ether and 29.95g of hydroxyethyl acrylate, and add IPDI and catalyst to a closed dispersion tank , heated and stirred until the system temperature was 40° C., slowly added dropwise weighed trimethylolpropane diallyl ether, and the system was heated to 60-65° C. and maintained for 3 hours. Then add the weighed hydroxyethyl acrylate, stir to raise the temperature to 80°C and keep it for 2 hours; then lower the temperature to below 60°C, filter and seal the package to obtain the reactive air-drying agent resin.

[0036] Embodiment 1 performan...

Embodiment 2

[0051] An air-drying acrylic waterproof coating is composed of component A and component B, and its formula composition is shown in Table 5. Table 5 Embodiment 2 coating formula

[0052]

[0053]

[0054] The preparation method of the reactive air-drying agent resin in embodiment 2:

[0055] Under the protection of nitrogen, accurately weigh 38g of IPDI aliphatic isocyanate, organic bismuth catalyst Bi16100.1g, 32g of diethylene glycol monoallyl ether and 29.9g of hydroxypropyl acrylate, and add IPDI and catalyst to a closed dispersion tank , heated and stirred until the system temperature was 40° C., slowly added dropwise weighed diethylene glycol monoallyl ether, and the system was heated to 60-65° C. and maintained for 3 hours. Then add the weighed hydroxypropyl acrylate, stir to raise the temperature to 80°C and keep it for 2 hours; then lower the temperature to below 60°C, filter and seal the package to obtain the reactive air-drying agent resin.

Embodiment 3

[0064] An air-drying acrylic waterproof coating is composed of component A and component B, and its formula composition is shown in Table 7.

[0065] Table 7 Embodiment 3 coating formula

[0066]

[0067]

[0068] The preparation method of the reactive air-drying agent resin in embodiment 3:

[0069] Under the protection of nitrogen, accurately weigh 45g of IPDI aliphatic isocyanate, bismuth-zinc mixed catalyst Zb10010.1g, pentaerythritol triallyl ether 40g, butyl acrylate 9.9g and hydroxyethyl methacrylate 5g and add IPDI and catalyst Put it into a closed dispersing tank, heat and stir until the system temperature is 40°C, slowly add the weighed pentaerythritol triallyl ether dropwise, the system temperature rises to 60-65°C and maintains for 3 hours. Then add weighed butyl acrylate and hydroxyethyl methacrylate, stir to raise the temperature to 80°C and keep it for 2 hours; then lower the temperature to below 60°C, filter and seal the package to obtain the reactive ai...

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Abstract

The invention provides air-dried type acrylic ester waterproof paint and a preparation method thereof. For solving the problem that in actual construction of the acrylic ester waterproof paint, the sealing wax cannot effectively solve the oxygen inhibition problem and the problems such as incomplete curing exist, reaction type air drying agent resin is introduced to replace sealing wax. Allyl ether in the reaction type air drying agent resin contains an allyl double bond and an ether bond, and hydrogen on a positive carbon atom in the double bond is very prone to being lost and then becomes free radicals to be combined with oxygen in air to generate hyperoxide; meanwhile, the hyperoxide generates free radicals with the high activity to promote continuing of the next-step reaction, therefore, a series of double-bond crosslinking reactions take place, and the inhibition action of oxygen on PMMA paint reacting is effectively isolated, so that the paint is cured in the air but is not tacky.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to an air-drying acrylate waterproof coating and a preparation method thereof. Background technique [0002] Acrylate waterproof coating is a reactive liquid resin with acrylate monomer as the main monomer base material and acrylate resin as the main component. Other additives and powders are added to form a strong and tough acrylate through polymerization reaction of double bonds. Waterproof coating of polymer compound. Acrylic polymers have the characteristics of ultra-low temperature curing, fast curing, and no small molecule residues after complete curing. The prepared coating film has good aging resistance, light resistance, weather resistance, and excellent resistance to acids, alkalis, salts, and oils. Durability, low price, simple synthesis process and other advantages, it has been widely used in municipal roads, concrete bridge decks, steel structure bridge decks, piers, pipelines,...

Claims

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Application Information

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IPC IPC(8): C09D151/00C09D7/12C08F291/12C08F291/06C08F291/10C08F220/14C08F220/28C08G18/67
Inventor 陈伟忠林焕章龚兴宇游启明
Owner FOSHAN KESHUN BUILDING MATERIAL CO LTD
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