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

Two-component polyurethane waterproof coating containing non-polar polymer modified compound and preparation method thereof

A two-component polyurethane and non-polar polymer technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor bonding, and achieve the effect of improving construction reliability

Active Publication Date: 2020-04-14
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the application problem of poor adhesion between asphalt waterproof coiled material or polymer waterproof coiled material and polyurethane waterproof coating, and to provide a two-component polyurethane waterproof coating containing non-polar polymer modified compounds. In engineering applications, it has good adhesion with asphalt waterproof membrane or polymer waterproof membrane

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
  • Two-component polyurethane waterproof coating containing non-polar polymer modified compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] Preparation of component A:

[0065] contacting and reacting the first polyol after vacuum dehydration with isocyanate; after cooling down, discharging in the presence of inert gas to obtain component A;

[0066] Preparation of component B:

[0067] i) the main chain contains a plurality of C=C double bonds of non-polar polymers and organic peroxyacids to carry out contact reaction to obtain the epoxidation modification of the main chain containing a plurality of C=C double bonds of non-polar polymers Sexual compounds;

[0068] ii) uniformly mixing the second polyol after vacuum dehydration and the solid chain extender with the epoxidized modified compound of the non-polar polymer containing multiple C=C double bonds in the main chain to obtain the mixture; after cooling , mix the mixture with the catalyst evenly, lower the temperature again, and discharge in the presence of an inert gas to obtain component B.

[0069] Method 2:

[0070] Preparation of component A: ...

Embodiment 1

[0094] This embodiment provides a two-component polyurethane waterproof coating containing a non-polar polymer modified compound. In parts by weight, the raw material formula for preparing component A includes: 10 parts of isocyanate (TDI), polyether diol (2000D) 20 parts, polyether triol (330N) 10 parts; the raw material formula for preparing component B includes: polyether triol (330N) 10 parts, dibutyl phthalate (DBP) 10 parts, 15 parts of linear SBS polymer, 1 part of formic acid peroxide, 6 parts of chain extender MOCA, 50 parts of pigment (heavy calcium), 0.2 part of organic tin catalyst (T-12), 0.5 part of defoamer, 0.2 part of dispersant, 20 parts of xylene.

[0095] Concrete preparation steps are as follows:

[0096] Preparation of component A:

[0097] Mix 20 parts of polyether diol (2000D) and 10 parts of polyether triol (330N), heat up to 110°C, dehydrate for 5 hours under vacuum pressure of -0.095MPa; lower the temperature to below 80°C, Add 10 parts of isocyan...

Embodiment 2

[0101] This example provides a two-component polyurethane waterproof coating containing a non-polar polymer modified compound. In parts by weight, the raw material formula for preparing component A includes: 15 parts of isocyanate (MDI-50), polyether two 20 parts of polyol (2000D), 10 parts of polyether triol (330N); 10 parts of chlorinated paraffin; the raw material formula for preparing component B includes: 10 parts of polyether triol (330N), 10 parts of chlorinated paraffin , 15 parts of star-shaped SBS polymer, 1 part of formic acid peroxide, 6 parts of chain extender MOCA, 50 parts of pigment (heavy calcium), 0.2 part of organotin catalyst (T-12), 0.5 part of defoamer, 0.2 part of dispersant Parts, xylene 20 parts.

[0102] Concrete preparation steps are as follows:

[0103] Preparation of component A:

[0104] Mix 20 parts of polyether diol (2000D), 10 parts of polyether triol (330N) and 10 parts of chlorinated paraffin, heat up to 110°C, and dehydrate for 6 hours und...

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

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a two-component polyurethane waterproof coating containing a non-polar polymer modified compound and a preparation method of the two-component polyurethane waterproof coating.The two-component polyurethane waterproof coating is prepared from a component A and a component B, wherein the component A is a polyurethane prepolymer prepared from 3-15 parts by weight of isocyanate and 2-40 parts by weight of first polyol; the component B comprises 2-20 parts by weight of second polyol, 2-30 parts by weight of the compound subjected to epoxidation modification with a non-polarpolymer, 2-15 parts by weight of a chain extender and 0.1-2 parts by weight of a catalyst, and a main chain of the non-polar polymer contains multiple C=C double bonds. The polyurethane waterproof coating has good performance of adhesion with a bituminous waterproof coiled material and a polymer waterproof coiled material and is used for adhesion, composition or repair of the bituminous waterproof coiled material or the polymer waterproof coiled material.

Description

technical field [0001] The invention belongs to the technical field of waterproof materials, and more specifically relates to a two-component polyurethane waterproof coating containing a non-polar polymer modified compound and a preparation method thereof. Background technique [0002] Waterproof materials are used as building envelopes to prevent the penetration of rainwater, snow and groundwater; to prevent the erosion of moisture, steam and other harmful gases and liquids in the air; to prevent the seepage of water supply and drainage as a separation structure. Turn; these anti-penetration, leakage and erosion materials are collectively referred to as waterproof materials. There are many kinds of waterproof materials, mainly including polyurethane waterproof coating, asphalt waterproof membrane, polymer membrane and other waterproof materials. [0003] Polyurethane waterproof coating is a chemically reactive polymer waterproof coating with excellent performance. It is an...

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): C09D175/14C09D7/61C09D7/63C09D7/65C08G18/69C08G18/66C08G18/48C08G18/32
CPCC08G18/3814C08G18/4812C08G18/6685C08G18/698C08K5/12C08K2003/265C09D175/14C08L91/06C08K3/26
Inventor 李红英杨旷王新锋段文锋杨红艳贾建军于成文
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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