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

Anti-cracking flexible vinyl versatate-acrylate stone-like coating emulsion and preparation method thereof

A flexible, real stone paint technology, applied in the field of crack-resistant flexible tert-acrylic real stone paint emulsion and its preparation, can solve the problems of discounted decorative effect, poor stain resistance, brittle paint film, etc., to increase hydrophobicity , enhance the appearance, improve the effect of stain resistance

Inactive Publication Date: 2018-06-15
上海巴德富实业有限公司
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the real stone paint emulsions commonly used in the market are styrene-acrylic emulsions with a high glass transition temperature. Although the formed paint film has high hardness, it lacks sufficient toughness.
In a cold environment or after a long time, the paint film tends to become brittle, and it is easy to crack due to the stress of the substrate, and the decorative effect is greatly reduced
In addition, due to the dense pores on the surface of the real stone paint film, the flexible real stone paint is easy to stick when exposed to heat, resulting in obvious natural dust adsorption and poor stain 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
  • Anti-cracking flexible vinyl versatate-acrylate stone-like coating emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] In addition, the present invention also provides the preparation method of described anti-cracking flexible tert-acrylic real stone paint emulsion, comprising the following steps:

[0028] a) Preparation of base liquid A: Add 40-80 parts of deionized water and 1-2 parts of emulsifier to a polymerization kettle equipped with a stirrer, condenser, and constant-flow pump feeding device, and heat up until the temperature in the kettle reaches 75 -80°C;

[0029] b) Preparation of pre-emulsion B: add the remaining deionized water, remaining emulsifier, and all formula quantities of vinyl acetate and methacrylic acid to the pre-emulsification tank with monomer metering tank and agitator at normal temperature and pressure n-butyl ester, alkyl acrylate, crosslinking agent, silane coupling agent, vinyl tertiary carbonate and initiator, stir for 10-30 minutes and mix well for later use;

[0030] c) When the temperature in the polymerization kettle in step a) reaches 75-80°C, quic...

Embodiment 1

[0034] An anti-cracking flexible tert-acrylic real stone paint emulsion, comprising 30 parts of vinyl acetate, 5 parts of n-butyl methacrylate, 10 parts of alkyl acrylate, 0.1 part of crosslinking agent, and silane coupling agent by weight 0.1 parts, 20 parts of vinyl tertiary carbonate, 0.1 parts of initiator, 2 parts of emulsifier, 50 parts of deionized water, and 0.7 parts of ammonia water.

[0035] The alkyl acrylate is n-butyl acrylate.

[0036] The crosslinking agent is acrylic acid.

[0037] The silane coupling agent is vinyltrimethoxysilane.

[0038] The initiator is ammonium persulfate.

[0039] The emulsifier is sodium dodecylbenzenesulfonate.

[0040] In addition, the present invention also provides the preparation method of described anti-cracking flexible tert-acrylic real stone paint emulsion, comprising the following steps:

[0041] a) Preparation of base material liquid A: Add 40 parts of deionized water and 1 part of emulsifier to a polymerization kettle e...

Embodiment 2

[0047] A kind of anti-cracking flexible tert-acrylic genuine stone paint emulsion, comprising 45 parts of vinyl acetate, 10 parts of n-butyl methacrylate, 25 parts of alkyl acrylate, 1.5 parts of crosslinking agent, silane coupling agent by weight 1 part, 25 parts of vinyl tertiary carbonate, 0.5 parts of initiator, 3 parts of emulsifier, 100 parts of deionized water, 10.5 parts of ammonia water.

[0048] The alkyl acrylate is 2-ethylhexyl acrylate.

[0049] The crosslinking agent is trimethylolpropane trimethacrylate.

[0050] The silane coupling agent is γ-methacryloxypropyltrimethoxysilane.

[0051] The initiator is sodium persulfate.

[0052] Described emulsifier is sodium lauryl sulfate.

[0053] In addition, the present invention also provides the preparation method of described anti-cracking flexible tert-acrylic real stone paint emulsion, comprising the following steps:

[0054] a) Preparation of base liquid A: Add 60 parts of deionized water and 1.5 parts of emuls...

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 discloses an anti-cracking flexible vinyl versatate-acrylate stone-like coating emulsion and a preparation method thereof. The emulsion comprises the following components in parts by weight: 30-60 parts of vinyl acetate, 5-15 parts of n-butyl methacrylate, 10-40 parts of alkyl acrylate, 0.1-3 parts of a cross-linking agent, 0.1-1.5 parts of a silane coupling agent, 20-30 parts of vinyl versatate, 0.1-1 part of an initiator, 2-4 parts of an emulsifier, 50-150 parts of deionized water and 0.7-2.1 parts of ammonia water. According to the method provided by the invention, the mannerof adding the vinyl versatate to overcome the influence brought by strong hydrophilicity of the vinyl acetate, and the cross-linking agent is used to solve the problem of poor copolymerization of thevinyl acetate and the alkyl methacrylate; and in the cross-linking effect of silicon, silane molecules are associated and oligomerize with each other to cover the surfaces of latex particles; when a coating film is formed, a compact hydrophobic layer can be formed on the surface of the coating film, so that hydrophobicity of the surface of the coating film is increased, the stain resistance of thecoating film is effectively improved, and the appearance of the coating film is enhanced.

Description

technical field [0001] The invention relates to an anti-cracking flexible tert-acrylic real stone paint emulsion and a preparation method thereof, belonging to the field of real stone paint emulsion additives for construction. Background technique [0002] Real stone varnish is a kind of imitation stone paint with a decorative effect similar to granite and marble. It is mainly made of natural stone powder of various colors. The decorated wall has natural and real natural color, giving people an elegant, harmonious and solemn aesthetic feeling. It has the characteristics of fire prevention, waterproof, acid and alkali resistance, pollution resistance, non-toxic, tasteless, strong adhesion, and never fades. It can effectively prevent the harsh external environment from eroding buildings and prolong the life of buildings. It has good adhesion and freeze-thaw resistance, so it is suitable for use in cold regions. [0003] However, most of the real stone paint emulsions commonly...

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
IPC IPC(8): C08F218/08C08F220/18C08F220/06C08F218/00C08F230/08C08F222/14C09D131/04C08F2/26C08F2/30C09D5/16
CPCC09D131/04C08F2/26C08F2/30C08F218/08C09D5/1662C08F220/1804C08F220/1806C08F222/103C08F218/24C08F230/08C08F220/06
Inventor 莫广强
Owner 上海巴德富实业有限公司