Waterproof paint, and preparation method thereof

A technology for waterproof coatings and raw materials, applied in the field of coatings, can solve problems affecting appearance and waterproof performance, dark bubbles in waterproof coating films, aging defects, etc., to improve activity and storage stability, improve plasticization, and increase contact area effect

Inactive Publication Date: 2018-11-30
南宁马瑞娜装饰工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the two-component waterproof coating has a long shelf life, the A and B components are prone to foaming during the stirring process, which is easy to produce dark bubbles and pinholes in the middle of the waterproof coating film, which affects the appearance and waterproof performance.
And components A and B must be used up within their curing time after mixing, otherwise, the construction will be affected or the coating film will fail due to the increase of viscosity, and there will be aging defects.

Method used

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  • Waterproof paint, and preparation method thereof
  • Waterproof paint, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A waterproof coating, comprising the following raw materials in parts by weight: 35 parts of modified polyether polyols, 15 parts of aluminum silicate powder, 8 parts of benzoyl peroxide, 5 parts of phosphoric acid, and 5 parts of diphenylmethane diisocyanate , 8 parts of dioctyl phthalate, 1 part of polyether modified polysiloxane defoamer, 8 parts of nano titanium dioxide, 3 parts of hydroquinone, 5 parts of UV-531, 1,2-benzo 1 part of isothiazolin-3-one, 3 parts of 4-hydroxybenzenesulfonic acid.

[0024] The preparation method of the modified polyether polyol: add propylene oxide and half the amount of calcium hydride into the reaction kettle, 40°C, pressure less than 1MPa, constant temperature reaction for 1.5h; add ethylene oxide and sodium hydroxide under reduced pressure And the other half of calcium hydride, 80 ℃, pressure less than 1.5 MPa, constant temperature reaction for 5 hours; decompression and cooling, add boric acid, 100 ℃, pressure less than 1 MPa, rea...

Embodiment 2

[0031] A waterproof coating, comprising the following raw materials in parts by weight: 50 parts of modified polyether polyols, 8 parts of aluminum silicate powder, 12 parts of benzoyl peroxide, 2 parts of phosphoric acid, and 8 parts of diphenylmethane diisocyanate , 5 parts of dioctyl phthalate, 3 parts of polyether modified polysiloxane defoamer, 5 parts of nano titanium dioxide, 5 parts of hydroquinone, 2 parts of UV-531, 1,2-benzo 3 parts of isothiazolin-3-one, 1 part of 4-hydroxybenzenesulfonic acid.

[0032]The preparation method of the modified polyether polyol: add propylene oxide and half the amount of calcium hydride into the reaction kettle, 60 ℃, pressure less than 1MPa, constant temperature reaction for 1h; add ethylene oxide, sodium hydroxide and The other half of calcium hydride, 100 ℃, pressure less than 1.5 MPa, constant temperature reaction for 3 hours; decompression and cooling, add boric acid, 110 ℃, pressure less than 1 MPa, reaction 3 hours, in which pro...

Embodiment 3

[0039] A waterproof coating, comprising the following raw materials in parts by weight: 46 parts of modified polyether polyols, 13 parts of aluminum silicate powder, 10 parts of benzoyl peroxide, 4 parts of phosphoric acid, 6 parts of diphenylmethane diisocyanate , 7 parts of dioctyl phthalate, 1.5 parts of polyether modified polysiloxane defoamer, 6 parts of nano titanium dioxide, 4 parts of hydroquinone, 4 parts of UV-531, 1,2-benzo 1.5 parts of isothiazolin-3-one, 2 parts of 4-hydroxybenzenesulfonic acid.

[0040] The preparation method of the modified polyether polyol: add propylene oxide and half the amount of calcium hydride into the reaction kettle, 50°C, pressure less than 1MPa, constant temperature reaction for 1.5h; add ethylene oxide and sodium hydroxide under reduced pressure And the other half of calcium hydride, 90 ℃, pressure less than 1.5 MPa, constant temperature reaction for 4 hours; decompression and cooling, add boric acid, 100 ℃, pressure less than 1 MPa, ...

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Abstract

The invention discloses a waterproof paint, and a preparation method thereof. The waterproof paint comprises, by weight, 35 to 50 parts of a grafted type polyether polyol, 8 to 15 parts of alumina silicate powder, 8 to 12 parts of benzoyl peroxide, 2 to 5 parts of phosphoric acid, 5 to 8 parts of Diphenyl-methane-diisocyanate, 5 to 8 parts of dicapryl phthalate, 1 to 3 parts of polyether modifiedpolysiloxane antifoaming agent, 5 to 8 parts of nanometer titanium dioxide powder, 3 to 5 parts of hydroquinone, 2 to 5 parts of UV-531, 1 to 3 parts of 1,2-Benzisothiazolin-3-one, and 1 to 3 parts of4-hydroxy benzenesulfonic acid. The waterproof paint is capable of increasing physical properties such as tensile strength and tearing strength, improving the performance such as adhesiveness, mildewresistance, bacterinertness, weatherability, wear resistance, flame resistance, chemical medium resistance, and ultraviolet ray resistance, is excellent in physical properties, high in anchoring strength, and convenient in construction, is friendly to the environment, is capable of saving energy, and is durable.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a waterproof coating. Background technique [0002] Waterproof coating is a viscous liquid polymer synthetic material with no fixed shape at room temperature. After coating, it is a general term for materials that form a tough waterproof film on the base surface after solvent volatilization or water evaporation or reaction curing. Waterproof coating is a vital protective layer in buildings. Its anti-oxidation, anti-ultraviolet, anti-weather, anti-mold and other properties directly affect the waterproof and environmental problems of buildings. [0003] At present, bituminous waterproof coatings and polyurethane waterproof coatings are common in the market. Among them, the asphalt waterproof coating needs to be melted at high temperature during the construction process before it can be coated and scraped. The asphalt material itself has the characteristics of "cold, brittle and...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D5/08C09D7/61C09D7/63C09D7/65C09D5/14C09D5/18C08G18/48C08G65/08C08G65/06C08G65/337
CPCC08G18/485C08G65/06C08G65/08C08G65/337C08L2201/02C09D5/14C09D5/18C09D175/08C08L83/12C08K13/02C08K3/34C08K5/14C08K2003/329C08K5/12C08K2003/2241C08K5/13C08K5/132C08K5/47C08K5/42
Inventor 梁剑斌
Owner 南宁马瑞娜装饰工程有限公司
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