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

Two-component silicone structural sealant and preparation method thereof

A two-component, sealant technology, used in adhesives, non-polymer adhesive additives, adhesive additives, etc.

Active Publication Date: 2020-10-30
GUANGZHOU BAIYUN CHEM IND
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional two-component silicone structural sealant needs a certain curing time to form sufficient adhesion. For example, it often takes 12-72 hours to form an effective bond during use, and even longer for some substrates or low temperature conditions. time

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 silicone structural sealant and preparation method thereof
  • Two-component silicone structural sealant and preparation method thereof
  • Two-component silicone structural sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 provides a two-component silicone structural sealant that can increase the bonding speed, and its formula and preparation process are as follows:

[0031] Component A: Put 100 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 12000cps and 100 parts of nano-calcium carbonate into the kneader, and knead for 150 minutes at room temperature to ensure uniform mixing. Then cool to room temperature, add 5 parts of prehydrolyzed silaminopropyl triethoxysilane with active silanol groups in the kneader, knead at low speed for 60 minutes, control the temperature of the material not higher than 50°C, and disperse evenly;

[0032] Component B: Add 100 parts of simethicone oil, 50 parts of carbon black, 35 parts of ethyl orthosilicate, 10 parts of silane coupling agent KH-560 with epoxy functional groups and 5 parts of dibutyltin dilaurate into the disperser Inside, just disperse evenly.

[0033] Mix component A and component B evenly according to the mass ...

Embodiment 2

[0035] Embodiment 2 provides a two-component silicone structural sealant that can increase the bonding speed, and its formula and preparation process are as follows:

[0036] Component A: Put 100 parts of α, ω-dihydroxypolydimethylsiloxane with a viscosity of 12000cps, 80 parts of nano-calcium carbonate and 10 parts of light calcium carbonate into the kneader, and knead for 150 minutes at room temperature to ensure uniform mixing . Then cool to room temperature, add 5 parts of prehydrolyzed silicon glycidyl etheroxypropyltrimethoxysilane with active silanol groups in the kneader, knead at low speed for 60 minutes, the temperature of the material is not higher than 50 ° C, and the dispersion is uniform;

[0037] Component B: Add 100 parts of dimethyl silicone oil, 50 parts of carbon black, 35 parts of ethyl orthosilicate, 10 parts of silane coupling agent KH-560 with epoxy functional group, and 5 parts of dibutyltin diacetate into the disperser , evenly dispersed.

[0038] Mi...

Embodiment 3

[0040] Embodiment 3 provides a two-component silicone structural sealant that can increase the bonding speed, and its formula and preparation process are as follows:

[0041] Component A: Put 100 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 12000cps and 100 parts of nano-calcium carbonate into the kneader, and knead for 150 minutes at room temperature to ensure uniform mixing. Then cool to room temperature, add 2.5 parts of prehydrolyzed silicon aminopropyl triethoxysilane with active silanol group and 2.5 parts of prehydrolyzed silicon glycidyl etheroxypropyl trimethoxysilane with active silanol group in In the kneader, knead at low speed for 60 minutes, the temperature of the material is not higher than 50°C, and the dispersion is uniform;

[0042] Component B: 100 parts of simethicone oil, 50 parts of carbon black, 35 parts of ethyl orthosilicate, 10 parts of silane coupling agent with secondary amine functional group (the reactant of KH-560 and KH-550), 5...

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
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a double-ingredient silicone structural sealant and a preparation method thereof. The double-ingredient silicone structural sealant is characterized in that a first silane coupling agent containing silanol is added into an ingredient A containing dihydroxy polysiloxane, wherein the silanol contains active silanol groups; the active silanol groups are used as bonding promoting ingredients; after the silanol is mixed with an ingredient B, if the ingredient A and the ingredient B are mixed according to but not limited to a weight ratio of 10:1, under the effect of an organic tin catalyst in the ingredient B, the reaction is fast taken with a base material to form bonding force, so that the bonding force can be formed with the base material such as glass and aluminum materials during the curing; high intensity, high ductibility, good bonding performance and the like of the sealant are ensured; meanwhile, the curing and the effective bonding time can be effectively shortened; the production efficiency for using the double-ingredient silicone structural sealant can be improved.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a two-component silicone structural sealant and a preparation method thereof. Background technique [0002] Two-component silicone structural sealant is a sealant with excellent bonding performance, good elasticity, weather aging resistance, UV resistance, ozone resistance, water resistance, etc. The two-component silicone structural sealant also has outstanding mechanical properties such as high strength and high elongation, and it can withstand elastic bonding with structural strength as the main function in structural assembly and play a role in structural bonding. The two-component silicone structural sealant generally has two components, A and B. When using it, it is necessary to mix the two components evenly, and then inject the glue into the glued part within a certain period of time. The curing speed of the two-component silicone structural sealant can be adjusted withi...

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): C09J183/06C09J183/04C09J11/04C09J11/06
CPCC08K2201/011C08K2201/014C08L2205/02C09J11/04C09J11/06C09J183/06C08L83/04C08K13/02C08K2003/265C08K5/544C08K3/04C08K5/5435C08K5/5415C08K3/36
Inventor 江锋蒋金博
Owner GUANGZHOU BAIYUN CHEM IND
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com