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

Ablation type sealing silicone rubber adhesive and preparation method thereof

A silicone rubber and adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor adhesion performance, ablation resistance and scratch performance, and achieve good application prospects. The effect of excellent environmental adaptability

Pending Publication Date: 2021-11-02
贵州航天风华精密设备有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of poor bonding performance, ablation resistance, and scratching performance of existing adhesives, the present invention provides an adhesive formula suitable for high-temperature sealing of high-speed aircraft and its application method. The ablative silicone rubber adhesive is used for Bonding and sealing of missile fairing and missile body docking surface, with remarkable adhesive performance

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
  • Ablation type sealing silicone rubber adhesive and preparation method thereof
  • Ablation type sealing silicone rubber adhesive and preparation method thereof
  • Ablation type sealing silicone rubber adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. An ablative sealing silicone rubber adhesive, the composition of which is calculated in parts by weight:

[0025] Component A: 100 parts of methyl bisphenyl room temperature vulcanized silicone rubber, 1 part of fumed silica, 3 parts of talc powder, 4 parts of silane coupling agent, 3 parts of toluene;

[0026] Component B: 5 parts of tetraethyl orthosilicate;

[0027] Component C: 0.7 parts of dibutyltin dilaurate.

[0028] 2. The preparation method of the above-mentioned ablative sealing silicone rubber adhesive is to first weigh methyl biphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, silane coupling agent and toluene according to the formula to prepare component A, When in use, add component B and component C for mixing, then place the obtained mixture on the scraper with a scraper, and scrape the mixture back and forth with the scraper to further ensure the uniformity of the rubber material to obtain qualified ablation Type-sea...

Embodiment 2

[0030] A kind of ablation type sealing silicone rubber adhesive, its composition is calculated by weight:

[0031] Component A: 100 parts of methyl bisphenyl room temperature vulcanized silicone rubber, 1 part of fumed silica, 2 parts of talcum powder, 4 parts of silane coupling agent, 3 parts of toluene;

[0032] Component B: 5 parts of tetraethyl orthosilicate;

[0033] Component C: 0.3 parts of dibutyltin dilaurate.

[0034] The adhesive was prepared according to the preparation method of Example 1.

Embodiment 3

[0036] A kind of ablation type sealing silicone rubber adhesive, its composition is calculated by weight:

[0037] Component A: 100 parts of methyl bisphenyl room temperature vulcanized silicone rubber, 5 parts of fumed silica, 4 parts of talc powder, 3 parts of silane coupling agent, 6 parts of toluene;

[0038] Component B: 8 parts of tetraethyl orthosilicate;

[0039] Component C: 0.8 parts of dibutyltin dilaurate.

[0040] The adhesive was prepared according to the preparation method of 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

No PUM Login to View More

Abstract

The invention relates to the technical field of adhesive preparation, in particular to an ablation type sealing silicone rubber adhesive and a preparation method thereof. According to the ablative sealing silicone rubber adhesive, methyl biphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and methylbenzene are adopted as raw materials, tetraethoxysilane is adopted as a cross-linking agent, and dibutyltin dilaurate is adopted as a catalyst. Through reasonable proportion design, the surface of a component is coated with the adhesive, and after the adhesive is cured at normal temperature, an adhesive layer with excellent ablation resistance, adhesive performance and environmental adaptability can be formed; the elongation at break of the adhesive reaches 168%, the shear strength at the normal temperature reaches 1.63 MPa, the shear strength at the high temperature (300 DEG C) reaches 0.28 MPa, all the other indexes meet the standard requirements, and the engineering application requirements of aircraft products can be met.

Description

technical field [0001] The invention relates to the technical field of adhesive preparation, in particular to an ablation-type sealing silicone rubber adhesive and a preparation method thereof. Background technique [0002] The improvement of the comprehensive performance of aerospace vehicles in terms of range, flight speed, hit accuracy and defense penetration capability also puts forward higher requirements for the high-temperature sealing of the aircraft during flight. The single-component silicone rubber adhesive widely used at present can no longer meet the coating and sealing requirements of new aircrafts in terms of bonding performance, ablation resistance, and scratching performance. Based on the demand for the sealing technology of a new type of product fairing, the research on the molding formula and preparation process of ablative methyl biphenyl room temperature vulcanized silicone rubber adhesive was carried out. After theoretical analysis, material screening,...

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
IPC IPC(8): C09J183/04C09J11/04C09J11/06
CPCC09J183/04C09J11/04C09J11/06C08K3/36C08K3/34C08K5/5415C08K5/54C08K13/02
Inventor 胡翠张绍波黄田燕鲁学峰
Owner 贵州航天风华精密设备有限公司
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