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Strong and tough back side waterproof coating

A waterproof coating and backwater technology, applied in the field of coatings, can solve the problems of water resistance, poor low temperature film formation, dry cracking, deformation cracking, etc., and achieve excellent bending resistance, improved service life, and good self-healing performance. Effect

Active Publication Date: 2018-01-19
盛隆建材(河南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is the necessary prerequisite for its waterproofing to rely on water, so the protective layer formed by crystalline waterproofing is incomplete. Generally, its compressive capacity is 0.3-0.4 MPa, and the waterproof effect is not good.
[0005] In general, the waterproof coating on the backwater surface still has low bonding strength with the substrate, will deform and crack, cannot withstand high osmotic water pressure, poor water resistance, low-temperature film-forming performance, and poor temperature adaptability , It is easy to cause aging, cracking, breaking, deformation and other bad phenomena that need to be solved urgently

Method used

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  • Strong and tough back side waterproof coating

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preparation example Construction

[0076] Second aspect of the present invention provides the preparation method of strong and tough water surface waterproof coating, comprises the steps:

[0077] a: Dehydration treatment of polyols and dioximes, taking specified parts by weight and adding them to a reaction kettle equipped with a stirrer, and adding the first batch of isocyanate, the temperature is controlled at 65 ~ 75 ° C, and in N 2 React in the atmosphere for 1.5 to 3 hours, then add the second batch of isocyanate, polyethyleneimine, amino acid and acrylic acid mixture dropwise, and stir for 30 to 45 minutes to obtain component A;

[0078] b: Take specified weight parts of nano-titanium dioxide, nano-silica, film-forming aids, and water into the high-speed dispersant, stir and disperse evenly for 20-30 minutes; then add acrylic acid emulsion and stir for 10-20 minutes to obtain component B;

[0079] c: Mix and stir components A and B for 15-30 minutes, and filter to obtain a strong and tough water surface ...

Embodiment 1

[0085] Embodiment 1 provides a kind of strong and tough waterproof coating on the back surface, the waterproof coating on the back surface includes two components A and B, the weight ratio of the two components is A:B=1:1;

[0086] The raw materials for the preparation of the A component, in parts by weight, consist of 42 polyols, 76 isocyanates, 3.9 dioximes, 10.5 polyethyleneimines, 0.6 amino acids, and 4.5 acrylic acid; In parts by weight, it consists of 15 acrylic emulsions, 0.5 nano titanium dioxide, 2 nano silicon dioxide, 1 film-forming aid and 15 water.

[0087] Described polyhydric alcohol is polyethylene glycol, is purchased from Sinopharm Chemical Reagent, and trade mark is 30150928; Described isocyanate is L-lysine triisocyanate and hexamethylene diisocyanate, and its molar ratio is L-lysine triisocyanate : Hexamethylene diisocyanate = 1: 3, wherein the CAS number of L-lysine triisocyanate is 69878188, purchased from Hangzhou Yilian Chemical Co., Ltd.; the divalent...

Embodiment 2

[0093] Embodiment 2 provides a kind of strong and tough waterproof paint on the back surface, the waterproof paint on the back water surface includes two components A and B, and the weight ratio of the two components is A:B=1:4;

[0094] The raw materials for the preparation of the A component, in parts by weight, consist of 42 polyols, 76 isocyanates, 3.9 dioximes, 10.5 polyethyleneimines, 0.6 amino acids, and 4.5 acrylic acid; In parts by weight, it consists of 40 acrylic emulsions, 4 nano-titanium dioxide, 8 nano-silicon dioxide, 4 film-forming aids, and 35 water.

[0095] Described polyhydric alcohol is polyethylene glycol, is purchased from Sinopharm Chemical Reagent, and trade mark is 30150928; Described isocyanate is L-lysine triisocyanate and hexamethylene diisocyanate, and its molar ratio is L-lysine triisocyanate : Hexamethylene diisocyanate = 1: 3, wherein the CAS number of L-lysine triisocyanate is 69878188, purchased from Hangzhou Yilian Chemical Co., Ltd.; the di...

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Abstract

The invention relates to the technical field of coating, and particularly relates to strong and tough back side waterproof coating. The strong and tough back side waterproof coating comprises a component A and a component B in a weight ratio of 1:(1-4), wherein the component A is prepared from the following raw materials in parts by weight: 40-95 parts of polyol, 70-80 parts of isocyanate, 3-15 parts of binary oxime, 10-35 parts of polyethyleneimine, 0.2-0.8 part of amino acid and 3-8 parts of acrylic acid; and the component B is prepared from the following raw materials in parts by weight: 15-40 parts of acrylic emulsion, 0.5-4 parts of nano-titanium dioxide, 2-8 parts of nano-silicon dioxide, 1-4 parts of a coalescing agent and 15-35 parts of water.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a strong and tough waterproof coating on the water surface. technical background [0002] Building waterproof materials refer to a class of building materials used in buildings and structures to prevent moisture, leaks, and protect buildings and structures and their components from water erosion. The anti-moisture effect refers to preventing corrosive substances such as groundwater or salt in the foundation from penetrating into the interior of the building components. The anti-leakage effect refers to preventing rainwater and snow from leaking into the interior of the building components from the joints of the roof, wall or concrete components. And the water in the water storage structure leaks outwards and the mutual water-proofing inside the buildings and structures. The development of building waterproof materials has gone through three stages: rigid waterproof materials (f...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D133/00C09D7/61C08G18/12C08G18/64C08G18/66C08G18/48C08G18/38C08G18/65
Inventor 李昂汪晓雨赵森光
Owner 盛隆建材(河南)有限公司
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