Unlock instant, AI-driven research and patent intelligence for your innovation.

Amine-free elastic acrylate emulsion, waterproof coating material and preparation method

An acrylic ester and emulsion technology, applied in cement coatings, coatings, etc., can solve the problems of insufficient water resistance, affect the crosslinking density of emulsions, and fail to improve water resistance, so as to improve waterproof performance, improve mechanical stability, and increase water resistance. The effect of sex and mechanical strength

Active Publication Date: 2021-11-09
JIANGSU CANLON BUILDING MATERIALS
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the role of the phosphate monomer used in the waterproof coating is to improve the adhesion between the coating and the substrate, and has no effect on improving the water resistance; vinyl siloxane is added when configuring the emulsifying monomer, and it is easy to interact with each other during the reaction. The formation of oligomers affects the crosslinking density of the emulsion after film formation, and there is a problem of insufficient water resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Amine-free elastic acrylate emulsion, waterproof coating material and preparation method
  • Amine-free elastic acrylate emulsion, waterproof coating material and preparation method
  • Amine-free elastic acrylate emulsion, waterproof coating material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The acrylate emulsion provided in this example has a raw material formula as shown in Table 1, and is specifically prepared by the following method:

[0083] Step S1:

[0084] According to the formula, put water, anionic emulsifier, reactive emulsifier, stabilizing monomer, crosslinking monomer, soft monomer and hard monomer into a container with stirring function, stir and mix evenly to form monomer emulsion. The body emulsion is divided into the first monomer emulsion and the second monomer emulsion according to the mass content, for subsequent use, wherein, the first monomer emulsion accounts for 2.6%, and the second monomer emulsion accounts for 97.4%;

[0085] The initiator is divided into four parts, respectively the first initiator, the second initiator, the third initiator and the fourth initiator, and the second initiator, the third initiator and the fourth initiator are respectively formulated into aqueous solutions, spare;

[0086] Divide the reducing agent...

Embodiment 2

[0097] The raw material formula of the acrylate emulsion provided in this example is shown in Table 1, and the others are the same as in Example 1.

Embodiment 3

[0099] The raw material formula of the acrylate emulsion provided in this example is shown in Table 1, and the others are the same as in Example 1.

[0100] Table 1 is the raw material formula (by mass percentage) of the acrylate emulsion of embodiment 1~3

[0101]

[0102]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an acrylate emulsion, a waterproof coating material and a preparation method, wherein the raw material formula of the acrylate emulsion comprises an acidic functional monomer, a soft monomer, a crosslinking monomer, a hard monomer, a post-crosslinking agent and the like, an emulsifier at least contains a reactive emulsifier, the reactive emulsifier contains carbon-carbon double bonds and hydroxyl, the crosslinking monomer contains carbon-carbon double bonds, and the post-crosslinking agent is siloxane with an epoxy group. Through cooperative use of the double-bond-containing reactive emulsifier, the crosslinking monomer and the acidic functional monomer, the double bonds of the reactive emulsifier can be connected to a polymer through a reaction so as to improve the mechanical stability, and hydroxyl can react with carboxyl to form crosslinking so as to improve the crosslinking degree and improve the water resistance; the crosslinking monomer containing double bonds enables molecular chains to be crosslinked, so that the polymer is more compact, and the waterproof performance is further improved; and the post-crosslinking agent is added, so that the binding force among polymer particles is higher after the emulsion is cured into a film, so that the water resistance and the mechanical strength are further improved.

Description

technical field [0001] The invention belongs to the technical field of waterproof building materials, and in particular relates to an amine-free elastic acrylate emulsion, a waterproof coating and a preparation method. Background technique [0002] Water-based emulsions are used in architectural waterproof coatings, such as waterproof asphalt and waterproof cement mortar. In order to ensure the performance of the emulsion and reduce the production cost, the traditional waterproof emulsion contains: [0003] formaldehyde or substances that emit formaldehyde, which is a known carcinogen; [0004] Alkylphenol polyoxyethylene ether (APEO) emulsifier, APEO has a certain impact on ecological safety, such as toxicity, slow degradation, environmental hormones and harmful by-products in the production process; [0005] Amide substances, especially acrylamide, which is highly toxic, will also release ammonia when it reacts with strong alkali such as cement; [0006] Ammonia or amin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18
CPCC08F220/1804C08F2/26C09D133/064C09D7/63C09D1/08C08F212/08C08F220/40C08F220/06C08F216/1475C08K5/5435Y02W30/91
Inventor 王枫沈恒周围
Owner JIANGSU CANLON BUILDING MATERIALS