Two-component polyaspartic acid ester sealant and preparation method thereof

A technology of aspartic acid ester and beautifying agent, applied in the field of beautifying agent, can solve the problems of large shrinkage rate of beautifying agent, poor substrate adhesion, unsatisfactory toughness, etc., and achieve good maintenance and recoating performance. , Excellent weather resistance, not easy to be scratched

Active Publication Date: 2021-06-25
山东卓高新材料有限公司
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of beautifying agent with strong adhesion, high adhesion strength, excellent mechanical toughness, not easy to yellow, and no obvious volume shrinkage after curing, so as to solve the problem of large shrinkage rate of beautifying agent in the prior art and the problem of Technical problems of poor substrate adhesion, unsatisfactory toughness, yellowing resistance and poor weather 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
  • Two-component polyaspartic acid ester sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0067] Wherein, the preparation method of the prepolymer containing polyisocyanate comprises: adding polyether diol, polyether triol and / or polyolefin into the reaction device, adding isophorone diisocyanate under stirring at 50-70°C, After mixing evenly, heat up to 80-85°C, react until the -NCO content is 9%-11%, then quickly cool down, then add hexamethylene diisocyanate trimer, and mix well to make -NCO content 15%-17% of prepolymers.

[0068] Further preferably, the polyether diol is a polyoxypropylene diol with a molecular weight of 1000-2000, the polyether triol is a polyoxypropylene triol with a molecular weight of 500-2000, and the polyolefin is a polyoxypropylene triol with a molecular weight of 2000-2500. Hydroxypolybutadiene.

[0069] Further preferably, the mass ratio of polyether diol to polyether triol and / or polyolefin is 1.5-4:1.

[0070] Further preferably, the mass ratio of polyether diol, polyether triol and polyolefin is 3-4:1:1.

[0071] Isocyanatosilan...

Embodiment 1

[0091] A two-component polyaspartic ester beauty joint agent, including A component and B component, wherein A component includes: 8kg prepolymer containing polyisocyanate, 0.9kg fumed silica, 0.4kg42.5 #Ordinary Portland cement, 0.12kg lime powder, 10g defoamer (BYK088), 50g leveling agent (BYK-306), 0.15kg 3-isocyanatopropyltriethoxysilane;

[0092] The preparation method of the prepolymer containing polyisocyanate comprises: adding in the four-necked flask that stirrer, thermometer, nitrogen protection device are housed after 4kg polyoxypropylene glycol 2000 and 1kg polyoxypropylene trihydric alcohol 1000 are dehydrated, 60 Add 5.5kg of isophorone diisocyanate under stirring at ℃, mix evenly and heat up to 80°C, react to -NCO content of 10.9% and then quickly cool down, then add 6.15kg of hexamethylene diisocyanate trimer, mix evenly Made into a prepolymer with an NCO content of 17%;

[0093] Component B includes: 8.6kg polyaspartic acid ester, 1kg titanium dioxide, 0.6kg ...

Embodiment 2

[0098] A two-component polyaspartic ester beauty joint agent, including A component and B component, wherein A component includes: 8kg prepolymer containing polyisocyanate, 0.5kg fumed silica, 0.4kg42.5 # Ordinary Portland cement, 0.2kg lime powder, 10g defoamer (BYK088), 50g leveling agent (BYK-306), 0.1kg 3-isocyanatopropyltriethoxysilane;

[0099] The preparation method of the prepolymer containing polyisocyanate comprises: adding in the four-necked flask that stirrer, thermometer, nitrogen protection device are housed after 4kg polyoxypropylene glycol 2000 and 1kg polyoxypropylene trihydric alcohol 1000 are dehydrated, 60 Add 2.85kg of isophorone diisocyanate under stirring at ℃, mix evenly and heat up to 80°C, react to -NCO content of 10% and then quickly cool down, then add 3.95kg of hexamethylene diisocyanate trimer, mix evenly Made into a prepolymer with an NCO content of 15%;

[0100] Component B includes: 7.6kg polyaspartate, 0.8kg titanium dioxide, 0.4kg molecular ...

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 the technical field of sealant, and provides a two-component polyaspartic acid ester sealant and a preparation method thereof. The two-component polyaspartic acid ester sealant comprises a component A and a component B, wherein the component A comprises a prepolymer containing polyisocyanate, fumed silica, Portland cement, lime powder, a defoaming agent, a flatting agent and isocyanate silane; and the component B is prepared from polyaspartic acid ester, titanium dioxide, a molecular sieve, fumed silica, a silane coupling agent, a dispersing agent, a defoaming agent, a flatting agent and a pigment. The two-component polyaspartic acid ester sealant provided by the invention is a solvent-free two-component sealant, and is environment-friendly, non-toxic, simple and convenient to use, small in shrinkage rate and good in maintenance and recoatability; the matrix resin does not contain an aromatic structure easy to yellow, does not yellow when being used outdoors or used for a long time, and is excellent in weather resistance; and the sealant is firm in interface bonding, high in adhesive strength, excellent in mechanical toughness, good in wear resistance and not prone to being scratched.

Description

technical field [0001] The invention relates to the technical field of beautifying agents, more specifically, to a two-component polyaspartate beautifying agent and a preparation method thereof. Background technique [0002] The gaps between tiles and marble in modern homes usually change from white to black due to the influence of smoke and oil with the use of time. If left untreated for a long time, it will not only affect the appearance, but also easily breed mold and produce peculiar smell, which will affect the home environment. , is a common problem that plagues the decoration industry and family health. Beautifying agent is an upgraded product of traditional white cement and caulking agent. It is mainly used in the joints of tiles or stones to solve the problems of unsightly joints, dirty black, and graying of tiles or stones. [0003] At present, the beautifying agents on the market can be mainly divided into one-component beautifying agents and two-component beauti...

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): C09J175/02C09J11/04C09J11/06C08G18/64
CPCC08G18/6415C08K2003/2241C08K2003/265C09J11/04C09J11/06C09J175/02C08K13/04C08K5/5455C08K7/26C08K3/26C08K3/34
Inventor 张宏强
Owner 山东卓高新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap