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A kind of two-component silicone acrylic anti-crack waterproof coating and preparation method thereof

A waterproof coating, two-component technology, applied in the direction of anti-corrosion coatings, fireproof coatings, coatings, etc., can solve the problems of low tensile strength and bonding strength, low elongation at break, poor high temperature crack resistance, etc., to achieve Enhance the impermeability and waterproof performance and high temperature crack resistance, improve the impermeability and waterproof performance and high temperature crack resistance, the effect of improving tensile strength and bond strength

Active Publication Date: 2020-05-22
滨州市良友防水材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing JS waterproof coating has the following disadvantages: 1. The amount of emulsion is large, and the production cost is high, which is not conducive to marketing and sales; 2. The high temperature crack resistance is poor, and the crack resistance of the coating film is small; 3. Water impermeability and poor impermeability; 4. Small tensile strength and bond strength, low elongation at break

Method used

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  • A kind of two-component silicone acrylic anti-crack waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A two-component silicone acrylic anti-cracking waterproof coating, the waterproof coating includes a liquid material and a powder material, the mass ratio of the liquid material and the powder material is 1:2, and the liquid material includes the following components in parts by weight Parts: 85 parts of acrylic emulsion; 15 parts of silicone emulsion; 3 parts of dibutyl phthalate; 10 parts of additives; 8 parts of water; the powder includes the following components by weight: 35 parts of black cement; 45 parts of powder; 15 parts of heavy calcium powder; 10 parts of talcum powder.

[0030] The index of above-mentioned used raw material is as follows:

[0031] Acrylic emulsion: solid content: 54%~56%, viscosity: 300~1500mPa·s, pH value: 7~8, Tg value: -10℃;

[0032] Silicone emulsion: solid content: 42%-45%, viscosity: 300-1500mPa·s, pH value: 7.5-8.5, Tg value: 40°C;

[0033] Dibutyl phthalate: colorless oily liquid with a density of 1.042-1.048g / ml at 20°C.

Embodiment 2

[0035] A two-component silicone acrylic anti-cracking waterproof coating, the waterproof coating includes a liquid material and a powder material, the mass ratio of the liquid material and the powder material is 1:2, and the liquid material includes the following components in parts by weight Parts: 80 parts of acrylic emulsion; 12 parts of silicone emulsion; 2 parts of dibutyl phthalate; 4 parts of modified sodium silicate; 3 parts of propylene glycol monolaurate; 1 part of penetrant T; 2 parts of penetrant JFC 7 parts of water; the powder includes the following components by weight: 40 parts of P32.5 black cement; 42 parts of 400 mesh quartz powder; 12 parts of 400 mesh heavy calcium powder; 10 parts of 400 mesh talcum powder; modified bentonite 15 parts; 5 parts of sodium tetrapolyphosphate.

[0036] The index of above-mentioned used raw material is as follows:

[0037] Acrylic emulsion: solid content: 54%~56%, viscosity: 300~1500mPa·s, pH value: 7~8, Tg value: -10℃;

[0...

Embodiment 3

[0041] A two-component silicone acrylic anti-cracking waterproof coating, the waterproof coating includes a liquid material and a powder material, the mass ratio of the liquid material and the powder material is 1:2, and the liquid material includes the following components in parts by weight Parts: 74 parts of acrylic emulsion; 15 parts of silicone emulsion; 1.5 parts of dibutyl phthalate; 6 parts of modified sodium silicate; 3 parts of propylene glycol monolaurate; 3 parts of penetrant T; 2 parts of penetrant JFC; 5 parts of water; the powder includes the following components by weight: 35 parts of P32.5 black cement; 35 parts of 400 mesh quartz powder; 15 parts of 400 mesh heavy calcium powder; 10 parts of 400 mesh talcum powder; 10 parts of modified bentonite parts; 3 parts of sodium tetrapolyphosphate.

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Abstract

The invention belongs to the field of building waterproof coatings and particularly provides a dual-component silicone-acrylic anti-cracking waterproof coating and a preparation method thereof. According to the dual-component silicone-acrylic anti-cracking waterproof coating, on the basis of a traditional JS waterproof coating, the high-temperature anti-cracking performance, the low-temperature anti-cracking performance, watertightness, anti-permeability, tensile strength, bonding strength and other performance of materials are remarkably improved while cost is reduced; the I-type solid content is larger than or equal to 70%, the tensile strength is larger than or equal to 4.8 MPa, the elongation at break is larger than or equal to 350%, watertightness is achieved for 160 min at the pressure of 0.4 MPa, no crack (phi 10mm rods) exists at the temperature of -40 DEG C according to low-temperature flexibility, and no crack exists during construction in the environment of the temperature of 45 DEG C according to high-temperature flexibility.

Description

technical field [0001] The invention belongs to the field of architectural waterproof coatings, in particular to a two-component silicon-acrylic anti-cracking waterproof coating and a preparation method thereof. Background technique [0002] JS waterproof coating refers to polymer cement waterproof coating, also known as JS composite waterproof coating. JS waterproof coating is a green and environmentally friendly material. It does not pollute the environment, has stable performance, excellent aging resistance, and long waterproof life; it is safe to use, convenient to construct, and easy to operate. Foaming, good film-forming effect, fast curing, simple construction, can be applied by brushing, rolling, and scraping. JS waterproof coating can be widely used in waterproof and anti-seepage projects in basements, roofs, toilets, pools, water towers, etc. . However, the existing JS waterproof coating has the following disadvantages: 1. The amount of emulsion is large, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D183/04C09D7/63C09D7/62C09D7/61C09D7/65C09D5/08
CPCC08K2201/014C08L2201/08C09D5/08C09D5/18C09D7/61C09D7/62C09D7/63C09D7/65C09D133/00C08L83/04C08K13/02C08K5/12C08K3/36C08K2003/265C08K3/34C08K13/06C08K9/02C08K9/08C08K3/346
Inventor 陈家兴李成顺吕海军刘楠
Owner 滨州市良友防水材料有限责任公司
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