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

Self-spraying self-adhesive type environment-friendly silica gel adhesive and preparation method thereof

A silicone glue, self-adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of the decline of the mechanical properties of the silica gel, the poisoning of the platinum catalyst, the poor compatibility of the silica gel, etc., and achieve easy operation. , good adhesion, good transparency

Inactive Publication Date: 2016-12-07
岳胜武
View PDF10 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN102010598 discloses a tackifier synthesized by the addition reaction of isocyanurate groups and triethoxysilane. The tackifier can be added to the addition-type liquid silicone rubber to achieve good adhesion between silica gel and plastics. , but due to the nitrogen functional group, it is easy to poison the platinum catalyst and its use is limited
U.S. Patent No. 4,525,400 discloses a tetramethyltetramethoxycyclotetrasiloxane tackifier, adding 0.75 parts, which can be well bonded to aluminum sheets, stainless steel, PVC, but has disadvantages such as slow curing time.
European Patent EP2158258 discloses a kind of tackifier synthesized with 1,2-epoxy 4-vinylcyclohexane, methylstyrene and tetramethylcyclotetrasiloxane, and this tackifier is effective to fuel cell electrolyte film Good adhesion, but the adhesive also has disadvantages such as poor compatibility with silica gel
Chinese patent CN103351467A discloses a compound such as acrylic acid and hydrogen-containing silicone oil to synthesize a tackifier by hydrosilicon addition. The tackifier can achieve bonding with silica gel and thermoplastics, but it also has poor compatibility. Mechanical properties decline and other issues
[0004] Although there have been reports on addition-type adhesive liquid silicone rubber, most of them have the characteristics of poor compatibility, easy catalyst poisoning, decreased mechanical properties of silicone rubber, and insufficient environmental protection level.
In particular, there has been no in-depth research on the field of spraying, so the present invention focuses on the development of an environmentally friendly sprayable glue

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
  • Self-spraying self-adhesive type environment-friendly silica gel adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] see figure 1 , the present invention also provides a preparation method of sprayable self-adhesive environmental protection silicone glue, comprising the following steps:

[0032] Step S1, take 100 parts of base glue, add 1-5 parts of coupling agent, then add 0.2-2.5 parts of hydrogen-containing silicone oil, 0.005-0.01 parts of inhibitor, dilute to 20-50% solid content with solvent, and Get component B;

[0033] Step S2, taking 100 parts of base glue and adding 0.5 parts of 1-10ppm platinum catalyst, diluting with solvent to 20-50% solid content, and obtaining A component;

[0034] In step S3, the component A and the component B are mixed and stirred evenly at a ratio of 1:1 by mass to obtain an environmentally friendly sprayable glue.

[0035] In this embodiment, the gum base includes the following components in terms of parts by mass: 40-60 parts of vinyl-terminated polydimethylsiloxane with a viscosity of 20,000-80,000, vinyl-terminated 20-40 parts of polydimethy...

Embodiment 1

[0043] Glue preparation and application

[0044] 50 parts of vinyl-terminated polydimethylsiloxane with a viscosity of 60,000, 18 parts of vinyl-terminated polydimethylsiloxane with a viscosity of 20,000, and 3 parts with a viscosity of 300 mPa.s vinyl mass fraction of 1% vinyl silicone oil, 26 parts of fumed silica, 5 parts of hexamethyldisilazane, 1.53 parts of water, add to kneader at room temperature and stir evenly, then heat up to 180°C, vacuum degree is 0.01MPa, After treatment for 3 hours, the base rubber was obtained after three-roll grinding.

[0045] Take 100 parts of base glue, add 5 parts of self-made coupling agent, then add 1.5 parts of hydrogen-containing silicone oil with hydrogen content of 0.85, 0.02 parts of inhibitor, dilute to 20% solid content with dimethylcyclosiloxane solvent, Obtain the B component.

[0046] Then take 100 parts of gum base, add 0.5 parts of 4000ppm platinum catalyst, and dilute to 20% solid content with dimethylcyclosiloxane solvent...

Embodiment 2

[0049] On the basis of Example 1, the solvent was diluted to a solid content of 30% with a mixed solvent of dimethyl carbonate and dimethylcyclosiloxane with a mass ratio of 1:1, and tested by the same method.

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 discloses a self-spraying self-adhesive type environment-friendly silica gel adhesive and a preparation method thereof. The preparation method comprises the following steps that 100 parts of a base adhesive is taken, 1-5 parts of a coupling agent is added, then, after 0.2-2.5 parts of containing hydrogen silicone oil and 0.005-0.01 part of an inhibitor are added, a solvent is used for dilution till the solid content is 20-50%, and a component B is obtained; 100 parts of the base adhesive is taken, 0.5 part of a 1-10 ppm platinum catalyst is added, a solvent is used for dilution till the solid content is 20-50%, and a component A is obtained; after the component A and the component B are mixed and stirred on the basis of the mass ratio being 1:1 to be uniform, the environment-friendly silica gel adhesive capable of being sprayed is obtained. The adhesive coats glass and ceramic, good adhesion can be achieved, silica gel cohesive failure can be achieved, and the solvent is environmentally friendly and free of odor. The adhesive coats the glass ceramic, so that the good adhesion can be achieved, and adhesive failure will not occur after water boiling is performed for 2 h. The prepared adhesive can be well adhered to the glass ceramic, the obtained silica gel is good in strength, good in transparency and easy to operate, and the adhered material obtained after spraying is resistant to boiling.

Description

technical field [0001] The invention relates to the technical field of silicone material bonding and spraying, in particular to a sprayable self-adhesive environment-friendly silicone glue and a preparation method thereof. Background technique [0002] Addition-type liquid silicone rubber (LSR) is a higher-grade variety of silicone rubber. Compared with condensation-type liquid silicone rubber, it has the advantages of no by-products during the vulcanization process, minimal shrinkage, and deep vulcanization. The tightness of the seal is also better than that of the condensation type. In addition, LSR also has the outstanding advantages of simple process and low cost. Because liquid silicone rubber has small molecular weight, low viscosity, and convenient processing and molding, it can save mixing, preforming, finishing and other processes, and it is easy to realize automation, save energy and labor, and have short production cycle and high efficiency. It is widely used in...

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): C09J183/07C09J183/05C09J11/04C09J11/06
CPCC08L2205/025C08L2205/035C09J11/04C09J11/06C09J183/04C08L83/04C08K13/02C08K3/36C08K5/544
Inventor 岳胜武李龙谢海龙
Owner 岳胜武
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