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

A kind of two-component room temperature curing silicone rubber and preparation method thereof

A technology of room temperature curing and silicone rubber, which is applied in the field of two-component room temperature curing silicone rubber and its preparation. It can solve the problems of poor compatibility, thixotropy, and easy delamination of methyl silicone oil, and achieve excellent moisture and heat aging resistance. Effect

Active Publication Date: 2018-02-02
TONSAN ADHESIVES INC
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the scheme of "a two-component condensation type room temperature curing silicone rubber resistant to moisture and heat aging" in the publication number CN102424742A, a preparation method of a two-component condensation type room temperature curing silicone rubber resistant to moisture and heat aging is provided. Partially add compounds containing epoxy groups, and these additives, such as epoxy resins, have poor compatibility with the silicone rubber matrix, which will easily lead to a higher viscosity of component A and thixotropy, which makes certain Use in conditions where flow properties are required is limited
A two-component silicone sealant for solar modules resistant to moisture and heat aging and its preparation method are provided in the scheme of "damp heat aging resistant two-component silicone sealant for solar modules and its preparation method" in the publication number CN102977840A. It is to add silyl-terminated polyether, MQ type resin and other substances to component B. Compared with methyl silicone oil, these substances are more expensive, and their compatibility with methyl silicone oil is poor, and component B is prone to delamination Phenomenon

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 two-component room temperature curing silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] The preparation method of component A: add 10 parts of methyl silicone oil with a viscosity of 100mpa.s at 25°C to 100 parts of α,ω-dihydroxy polydimethylsiloxane with a viscosity of 5000mpa.s at 25°C, vacuum Stir for 20min under the condition that the pressure is greater than 0.095MPa. Then add 80 parts of aluminum hydroxide and 50 parts of silicon micropowder, and stir for 20 minutes under the condition of a vacuum greater than 0.095 MPa. After the dispersion is uniform and there are no particles, the glue can be produced to obtain component A.

[0035] Preparation method of component B: in N 2 Under protection, add 15 parts of tetraethoxysilane, 5 parts of methyltrimethoxysilane, 15 parts of 1,2-bis(trimethoxysilyl) to 100 parts of methyl silicone oil with a viscosity of 500mpa. ) ethane, 5 parts of 1,2-bis(triethoxysilyl)ethane, 5 parts of γ-aminopropyltriethoxysilane, 5 parts of γ-(2,3-epoxypropoxy)propane Trimethoxysilane, 2 parts of N-(β-aminoethyl)-γ-aminoprop...

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention is a two-component room temperature curing silicone rubber and a preparation method thereof, comprising two components A and B, and component A includes A1α, ω-100 parts of dihydroxy polydimethylsiloxane in parts by weight, A2 methyl silicone oil 0-20 parts, A3 filler 50-150 parts; component B includes: B1 methyl silicone oil 100 parts, B2 crosslinking agent 10-25 parts, B3. deep curing agent 10-25 parts, B4. silane 5-25 parts of coupling agent, 0.2-2 parts of B5 catalyst; the preparation method of component A is to add components A2 and A3 to component A1 in sequence, and stir under the condition of vacuum greater than 0.095MPa after each addition 10‑20min, and finally component A can be obtained; the preparation method of component B is to add B2, B3, B4 and B5 components to B1 successively under N2 protection, and stir 20‑20‑ 30min, and finally component B can be prepared. The silicone rubber provided by the invention not only cures quickly in the deep layer, but also produces alcohol after curing, which is environmentally friendly, and has excellent moisture-heat aging resistance.

Description

technical field [0001] The invention relates to a two-component room temperature curing silicone rubber and a preparation method thereof. Background technique [0002] Two-component room temperature curing silicone rubber not only has excellent high and low temperature resistance, electrical insulation performance, environmental aging resistance, etc., but also has the characteristics of adjustable mixing ratio and fast curing speed. It is widely used in photovoltaics, electronics, automobiles, construction, etc. industry. Although the curing speed of two-component room temperature curing silicone rubber is fast, the deep curing performance is greatly affected by the moisture content in component A, and due to the limitation of certain application fields or product performance, the moisture content in component A It is difficult to add water or add a small amount, which seriously affects its deep curing performance. In the scheme of "a two-component room temperature curing...

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): C08L83/06C08L83/04C08K13/02C08K3/22C08K3/36C08K5/5415C08K5/5419C08K5/544C08K5/5435C08K3/26C08K3/34
Inventor 王吉
Owner TONSAN ADHESIVES INC
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