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

A kind of preparation method of high temperature resistant emulsion polymer

An emulsion polymer, high temperature resistant technology, applied in the field of building surface waterproof and adhesion coating, building materials, can solve the problems of general mechanical properties, low film forming performance, weak adhesion, etc., to achieve excellent mechanical properties, low temperature extension The effect of good rate and large molecular weight

Active Publication Date: 2021-09-24
HUBEI UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The waterproof coatings prepared by the prior art have problems such as low film-forming performance, weak adhesion, general mechanical properties, and poor temperature resistance, that is, there is still room for improvement in comprehensive performance, and there is an urgent need for a comprehensive performance that is balanced and more efficient. excellent waterproof coating

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
  • A kind of preparation method of high temperature resistant emulsion polymer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0054] The raw materials required for the preparation of emulsion polymers for high-temperature-resistant waterproof building materials, based on 1000 total parts by mass, include the following components by mass:

[0055] Composition of methacryl alcohol and 4-(ethyleneoxy)-1-butanol with a mass ratio of 1:2: 3.5 parts

[0056] Composition of N-lauryl acrylamide and octadecyl vinyl ether with a mass ratio of 1:1: 15.5 parts

[0057] Lauryl peroxide: 0.4 parts

[0058] Sodium hypophosphite: 0.65 parts

[0059] Sodium methacrylate: 6.5 parts

[0060] N-lauryl acrylamide: 275 parts

[0061] Azobisisoheptanonitrile: 5.4 parts

[0062] Polyethylene glycol dimethacrylate: 6.5 parts

[0063] Diethanolamine: 1.4 parts

[0064] Sodium methoxide: 2.8 parts

[0065] Dicyclopentadienyl acrylate: 152 parts

[0066] Ethylene oxide and propylene oxide block polyether with a mass ratio of 2:1: 32 parts

[0067] Graphene oxide: 0.5 parts

[0068] The balance is deionized water.

[...

example 2

[0076] The raw materials required for the preparation of emulsion polymers for high-temperature-resistant waterproof building materials, based on 1000 total parts by mass, include the following components by mass:

[0077] Composition of methacryl alcohol and 4-(ethyleneoxy)-1-butanol with a mass ratio of 1:2: 3.5 parts

[0078] Composition of N-lauryl acrylamide and octadecyl vinyl ether with a mass ratio of 1:1: 15.5 parts

[0079] Lauryl peroxide: 0.4 parts

[0080] Sodium hypophosphite: 0.65 parts

[0081] Composition of sulfonic acid group hydrophilic monomer vinyl sulfonate and 2-acrylamide-2-methylpropanesulfonic acid with a mass ratio of 2:1:

[0082] 6.5 servings

[0083] The mass ratio is 1; the composition of N-dodecyl acrylamide and octadecyl vinyl ether of 1: 275 parts

[0084] Azobisisoheptanonitrile: 5.4 parts

[0085] Polyethylene glycol dimethacrylate: 6.5 parts

[0086] Diethanolamine: 1.4 parts

[0087] Sodium methoxide: 2.8 parts

[0088] Dicyclopen...

example 3

[0099] The raw materials required for the preparation of emulsion polymers for high-temperature-resistant waterproof building materials, based on 1000 total parts by mass, include the following components by mass:

[0100] Composition of methacryl alcohol and 4-(ethyleneoxy)-1-butanol with a mass ratio of 1:2: 3.5 parts

[0101] Composition of N-lauryl acrylamide and octadecyl vinyl ether with a mass ratio of 1:1: 15.5 parts

[0102] Lauryl peroxide: 0.4 parts

[0103] Sodium hypophosphite: 0.65 parts

[0104] Composition of sulfonic acid group hydrophilic monomer vinyl sulfonate and 2-acrylamide-2-methylpropanesulfonic acid with a mass ratio of 2:1:

[0105] 6.5 servings

[0106] Composition of N-lauryl acrylamide and octadecyl vinyl ether with a mass ratio of 1:1: 275 parts

[0107] Composition of azobisisobutyronitrile and azoisobutyrocyanoformamide with a mass ratio of 4:3: 5.4 parts

[0108] Polyethylene glycol dimethacrylate: 6.5 parts

[0109] Diethanolamine: 1.4 ...

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 a preparation method of a high temperature resistant emulsion polymer. Required raw materials: 2.4-4.5 parts of hydroxyl-type hydrophilic small monomers for emulsification, 8.5-19.2 parts of alkyl-type hydrophobic small monomers for emulsification, 0.3-0.55 parts of emulsion initiator a, 0.4-0.75 parts of chain transfer agent, sulfur Acid group hydrophilic small monomer 4.2-10.5 parts, ether polymer 28-43 parts, initiator b 3.5-8.4 parts, alkyl hydrophobic small monomer 240-320 parts, acrylate hard monomer 130- 180 parts, 4.6-8.5 parts of cross-linking agent, 1.2-2.6 parts of neutralizing agent, 2.3-4.0 parts of pH regulator, 0.46-0.87 parts of functional monomer, supplemented to 1000 parts by mass of deionized water. This method utilizes the strong hydrophilic effect of the sulfonic acid group to strengthen the adhesion between the coating film and the substrate, and the network combination of the crosslinking agent can significantly improve the mechanical properties between the polymers. Using a long alkyl chain hydrophobic monomer as a raw material, a polymer waterproof emulsion with good stability, high adhesion, high temperature resistance and excellent waterproof effect is synthesized through a series of processes such as dispersion pre-emulsification, constant temperature polymerization, variable speed stirring, and pH adjustment. polymer.

Description

technical field [0001] The invention belongs to the technical field of building materials, relates to the field of building surface waterproofing and attached coatings, in particular to a method for preparing an emulsion polymer for high-temperature-resistant waterproof building materials. Background technique [0002] With the advancement of society and the development of science and technology, the quality of waterproof emulsion polymers is also constantly improving and upgrading. In recent years, some polymer cement-based waterproof coatings have emerged, because they have both the high elasticity of synthetic polymer materials and the Inorganic materials have the advantages of good durability and are widely used. However, the quality of polymer waterproof coatings currently on the market is uneven, such as poor aging resistance, insufficient tensile strength, low temperature flexibility, poor elongation at break, easy aging, cracking or even peeling, and other problems a...

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 Patents(China)
IPC IPC(8): C08F265/04C08F220/54C08F2/24C08F2/44C08F216/18C08F216/04C08F216/14C09D151/00C09D7/65C09D7/61
CPCC08F2/24C08F2/44C08F220/54C08F265/04C08L2201/08C09D151/003C09D7/61C09D7/65C08F216/18C08F216/04C08F216/1416C08L71/02C08K3/042
Inventor 王迎斌宋钰莹贺行洋苏英罗人豪
Owner HUBEI UNIV OF TECH