Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Precise polymer sealing waterproof agent for grouting

A polymer and waterproofing agent technology, applied in the field of building materials, can solve the problems of low monomer conversion rate, large average particle size, high gelation rate, etc., achieve high system stability, increase gelation rate, and ensure smooth progress Effect

Inactive Publication Date: 2021-09-03
深圳市跃浪供应链有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a precision polymer grouting sealing and waterproofing agent, which solves the problems of low monomer conversion rate, high gel rate and large average particle size in the preparation process of the current sealing and waterproofing agent. and low stability

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A sealing and waterproofing agent for precision polymer grouting, its raw materials include by weight: 20 parts of methyl methacrylate, 6 parts of butyl acrylate, 2 parts of acrylic acid, 0.8 parts of silicon-containing acrylic acid monomer, hexafluoromethacrylate 3 parts of butyl ester, 4 parts of dodecafluoroheptyl methacrylate, 0.4 part of ammonium persulfate, 1 part of compound emulsifier, 40 parts of deionized water;

[0037] The sealing and waterproofing agent for precision polymer grouting is prepared by the following method:

[0038] Step 1, adding deionized water and compound emulsifier to the tank equipped with mechanical stirrer, constant pressure dropping funnel, N 2 Pass into the three-necked flask A of the tube, utilize a mechanical stirrer to stir and dissolve the compound emulsifier in deionized water, then add dropwise the mixed monomers of methyl methacrylate, butyl acrylate and acrylic acid in the three-necked flask A, at a speed of Stir for 30 minut...

Embodiment 2

[0050] A sealing and waterproofing agent for precision polymer grouting, its raw materials include by weight: 28 parts of methyl methacrylate, 10 parts of butyl acrylate, 4 parts of acrylic acid, 1.2 parts of silicon-containing acrylic acid monomer, hexafluoromethacrylate 5 parts of butyl ester, 8 parts of dodecafluoroheptyl methacrylate, 0.8 parts of ammonium persulfate, 3 parts of compound emulsifier, 60 parts of deionized water;

[0051] The sealing and waterproofing agent for precision polymer grouting is prepared by the following method:

[0052] Step 1, adding deionized water and compound emulsifier to the tank equipped with mechanical stirrer, constant pressure dropping funnel, N 2 Pass into the three-necked flask A of the tube, utilize a mechanical stirrer to stir and dissolve the compound emulsifier in deionized water, then add dropwise the mixed monomers of methyl methacrylate, butyl acrylate and acrylic acid in the three-necked flask A, at a speed of Stir for 30 mi...

Embodiment 3

[0064] A sealing and waterproofing agent for precision polymer grouting, its raw materials include by weight: 24 parts of methyl methacrylate, 8 parts of butyl acrylate, 3 parts of acrylic acid, 1.0 parts of silicon-containing acrylic acid monomer, hexafluoromethacrylate 4 parts of butyl ester, 6 parts of dodecafluoroheptyl methacrylate, 0.6 parts of ammonium persulfate, 2 parts of compound emulsifier, 50 parts of deionized water;

[0065] The sealing and waterproofing agent for precision polymer grouting is prepared by the following method:

[0066] Step 1, adding deionized water and compound emulsifier to the tank equipped with mechanical stirrer, constant pressure dropping funnel, N 2Pass into the three-necked flask A of the tube, utilize a mechanical stirrer to stir and dissolve the compound emulsifier in deionized water, then add dropwise the mixed monomers of methyl methacrylate, butyl acrylate and acrylic acid in the three-necked flask A, at a speed of Stir for 30 minu...

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 precise polymer sealing waterproof agent for grouting. The sealing waterproof agent is prepared from methyl methacrylate, butyl acrylate, acrylic acid, a silicon-containing acrylic monomer, hexafluorobutyl methacrylate, dodecafluoroheptyl methacrylate, ammonium persulfate, a compound emulsifier and deionized water. The precise high-molecular sealing waterproof agent for grouting is prepared by the following steps: preparing monomer solutions of a pre-emulsifier I, a pre-emulsifier II, a pre-emulsifier III and an ammonium persulfate solution, adding all the monomer solutions into an emulsification system in advance at a certain rate, dropwise adding an emulsion into a reactor at a certain rate. The pre-emulsified monomer no longer captures the compound emulsifier on the surface of the water phase or surrounding latex particles, and the monomer in the polymerization reactor is always in a starvation state, so that the reaction is stably and uniformly carried out, and system stability is higher; therefore, the problems of low monomer conversion rate, high gel rate, large average particle size and low stability in the preparation process of the waterproof agent are effectively solved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a sealing and waterproofing agent for precision polymer grouting. Background technique [0002] With the rapid development of society, various buildings continue to appear, and people have higher and higher requirements for the safety and reliability of buildings. Concrete is the main building material, and concrete is a brittle material with low tensile strength and limit The tensile strain is small. When the internal stress caused by volume shrinkage due to drying shrinkage, chemical shrinkage, and carbonation shrinkage exceeds its own tensile strength during the setting and hardening process, the concrete will inevitably crack. Therefore, the anti-seepage and waterproofing of construction projects has attracted people's attention, so people invented waterproofing agents for cement concrete. With the advancement of science and technology, people's requirements for co...

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): C08F220/14C08F220/18C08F220/06C08F230/08C08F220/24C08F2/26C08F2/30C04B24/42C04B103/65
CPCC08F220/14C08F2/26C08F2/30C04B24/42C04B2103/65C08F220/1804C08F220/06C08F230/085C08F220/24
Inventor 丁晓春张冬明侯凤港
Owner 深圳市跃浪供应链有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com