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

A fast-curing silicone sealant

A fast-curing, silicone-based technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of high metering accuracy, inability to increase curing speed, and slow curing speed

Active Publication Date: 2021-12-10
深圳市宝力科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional condensation-type two-component silicone sealant has a mixing ratio of 6:1-20:1. In actual construction, there are many requirements for the measurement accuracy of the mixing equipment, and the curing speed is relatively slow. It usually takes more than 24 hours. And the curing speed cannot be increased by heating
This will inevitably affect the assembly efficiency of the material
The use of organic tin catalysts with high activity can properly increase the curing rate, but the increase is limited, and the catalysts with high activity contain volatile low-molecular-weight acids. In addition to making the potting tape have a pungent smell, electronic components There is also a risk of corrosion

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 fast-curing silicone sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A condensation-type fast-curing silicone sealant, including A and B components. Component A includes 100 parts of α, ω-dihydroxy polydimethylsiloxane (viscosity 36000mPa·s), 50 parts of monohydroxyl-terminated simethicone oil (0.6% volatile content), 15 parts of dimethyl silicone oil, Calcium carbonate and white carbon black mixture (10:1) 60 parts, glycerin 5 parts, methyltrimethoxysilane 0.3 parts, dibutyltin dilaurate 0.5 parts; B component includes simethicone oil 45 parts, 5 parts of N-aminoethylpiperazine, 1.5 parts of tetrabutylammonium bromide, 20 parts of amino silicone oil, 0.2 part of methyltrimethoxysilane, said amino silicone oil is octamethylcyclotetrasiloxane and N-( β-Aminoethyl)-γ-aminopropylmethyldimethoxysilane (HD103) is prepared by mixing at a mass ratio of 1:1 and reacting at 110-120°C.

[0029] The preparation of component A includes the following two steps:

[0030] (1) Calcium carbonate, white carbon black and methyltrimethoxysilane are weighe...

Embodiment 2

[0036] A condensation-type fast-curing silicone sealant, including A and B components. Component A includes 100 parts of α, ω-dihydroxy polydimethylsiloxane (viscosity 25000mPa·s), 50 parts of monohydroxyl-terminated dimethyl silicone oil (0.6% volatile content), 18 parts of dimethyl silicone oil, Calcium carbonate and white carbon black mixture (12:1) 60 parts, ethylene glycol 5 parts, methyltrimethoxysilane 0.3 part, dibutyltin dilaurate 0.5 part; B component and preparation method are the same as the examples 1.

Embodiment 3

[0038] A condensation-type fast-curing silicone sealant, including A and B components. Component A includes 100 parts of α, ω-dihydroxy polydimethylsiloxane (viscosity 25000mPa·s), 50 parts of monohydroxyl-terminated dimethyl silicone oil (0.7% volatile content), 15 parts of dimethyl silicone oil, Calcium carbonate and white carbon black mixture (12:1) 60 parts, glycerol 5 parts, dimethyldimethoxysilane 3 parts, dibutoxydihexyltin 2 parts; B component includes dimethyl 40 parts of silicone oil, 5 parts of N-aminoethylpiperazine, 2 parts of tetraethylammonium bromide, 20 parts of amino silicone oil, 0.2 part of methyltrimethoxysilane, the amino silicone oil is octamethylcyclotetrasiloxane It is prepared by mixing with N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane (HD103) at a mass ratio of 1:1 and reacting at 110-120°C.

[0039] The preparation method of A and B components is the same as in Example 1.

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 relates to the technical field of silicone sealants, in particular to the technical field of fast-curing silicone sealants. The sealant includes A and B components. Component A includes 100 parts of α, ω-dihydroxy polydimethylsiloxane, 50 parts of hydroxyl-terminated dimethyl silicone oil, 10-20 parts of dimethicone oil, 50-100 parts of filler, and 1-13 parts of toughening agent 0.1-5 parts of coupling agent, 0.2-4 parts of catalyst; B component includes 30-60 parts of dimethyl silicone oil, 5-10 parts of curing agent, 1-5 parts of curing accelerator, 20-35 parts of amino silicone oil , 0.1-5 parts of coupling agent. The invention makes full use of the reactivity of the hydroxyl group and the organic amine through formula preparation, and realizes rapid curing at low temperature.

Description

technical field [0001] The invention belongs to the technical field of sealants, and in particular relates to the technical field of fast-curing silicone sealants. Background technique [0002] Silicone sealants have excellent weather resistance, UV resistance, high and low temperature resistance and hydrophobicity, and can maintain good physical properties even in harsh environments, so they are widely used in construction, electronics, electrical appliances, automobiles, New energy and other fields. With the improvement of production efficiency and product quality stability requirements in various industries, higher requirements are put forward for the performance of silicone sealants. [0003] The existing two-component transparent potting silicone usually has two types: addition and condensation. The addition type solidifies the system through the reaction of silicon hydrogen and vinyl silicone oil to form a C-C bond; the condensation type usually uses an organotin cat...

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): C09J183/04C09J183/08C09J11/04C09J11/06
CPCC09J183/04C09J11/04C09J11/06C08L2205/025C08L2205/035C08K2003/265C08L83/04C08L83/08C08K9/06C08K3/26C08K3/36C08K5/053C08K5/06
Inventor 罗青菊王能文
Owner 深圳市宝力科技有限公司
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