Special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature and preparation method of special single-component jointing and gap filling silicon rubber

A room temperature curing, one-component technology, applied in the field of silicone rubber, can solve the problems of not being able to meet the EMAS system, poor natural aging resistance, and difficult repairs, and achieve unaffected flame retardancy, low thickening, and excellent reinforcement effect of effect

Inactive Publication Date: 2015-06-03
CHENGDU TALY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the caulking glue on the market is mainly based on epoxy resin and polyurethane. Epoxy resin and polyurethane generally have problems su...

Method used

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  • Special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature and preparation method of special single-component jointing and gap filling silicon rubber
  • Special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature and preparation method of special single-component jointing and gap filling silicon rubber
  • Special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature and preparation method of special single-component jointing and gap filling silicon rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Select 90 parts of α, ω-dihydroxypolydimethylsiloxane (molecular weight 70000, produced by Shin-Etsu Japan), 1 part of linear polydimethylsiloxane with hydroxyl end group (molecular weight 10000, produced by Dow Corning), and after three 5 parts of fumed silica pretreated by functional siloxane and hexamethyldisilazane, 10 parts of aluminum hydroxide pretreated by trifunctional siloxane and D4, 15 parts of melamine cyanurate , mix evenly in the kneader, transfer the rubber material to a three-roll machine for grinding, and then transfer it to the kneader to heat up and stir, keep the temperature of the rubber material at 100°C, and vacuum degree ≥ 0.085Mpa, stir and vacuum dry 2 hours. figure 1 It is a flowchart of the drying of the sizing material of the present invention. Such as figure 1 The specific steps of rubber drying in the actual production process can be obtained.

[0035] Put the dried rubber material into the planetary stirring tank, and when the sealing t...

Embodiment 2

[0037] Select 110 parts of α, ω-dihydroxypolydimethylsiloxane (molecular weight 70000, produced by Shin-Etsu, Japan), and 5 parts of linear polydimethylsiloxane (molecular weight 10000, produced by Dow Corning) whose terminal groups are hydroxyl groups. 10 parts of fumed silica pretreated by functional siloxane and hexamethyldisilazane, 20 parts of aluminum hydroxide pretreated by trifunctional siloxane and D4, 10 parts of melamine cyanurate Mix evenly in the kneader, transfer the rubber material to the three-roll machine for grinding, and then transfer it to the kneader to heat up and stir, keep the temperature of the rubber material at 120°C, and the vacuum degree ≥ 0.095Mpa, stir and evacuate Let dry for 3 hours.

[0038] Put the dried rubber into the planetary stirring tank. When the sealed temperature of the rubber is within 80°C, add 0.5 parts of black color masterbatch, catalyst: 2 parts of organotin chelate, crosslinking agent: 4 parts of methyl Tributylketoxime silan...

Embodiment 3

[0040] Select 120 parts of α, ω-dihydroxy polydimethylsiloxane (molecular weight 70000, produced by Shin-Etsu, Japan), and 10 parts of linear polydimethylsiloxane (molecular weight 10000, produced by Dow Corning) whose end group is hydroxyl, after three 15 parts of fumed silica pretreated by functional siloxane and hexamethyldisilazane, 17 parts of aluminum hydroxide pretreated by trifunctional siloxane and D4, 20 parts of melamine cyanurate Mix evenly in the kneader, transfer the rubber material to the three-roll machine for grinding, and then transfer it to the kneader to heat up and stir, keep the temperature of the rubber material at 150°C and the vacuum degree ≥ 0.1Mpa, stir and evacuate Let dry for 4 hours.

[0041] Put the dried rubber into the planetary stirring tank. When the sealing temperature of the rubber is within 100°C, add 1 part of black color masterbatch, catalyst: 3 parts of organotin chelate, crosslinking agent: 5 parts of methyl Tributylketoxime silane, 5...

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Abstract

The invention discloses special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature and a preparation method of the special single-component jointing and gap filling silicon rubber. Low-viscosity alpha, omega-dihydroxy-polydimethylsiloxane is used as base rubber, linear polydimethylsiloxane is used as an additive, the hydroxyl content is increased, a fumed silica is adopted for reinforcing, a mixture of aluminum hydroxide and melamine cyanurate is used as flame-resistant filler, methyltris(methylethylketoxime)silane and tri(2-butaneneoxime)cinylsilane are used as crosslinking agents, aminopropyltriethoxysilane and gamma-methacryloxypropyltrimethoxysilane are used as adhesives, a production process is controlled, and then, the special single-component jointing and gap filling silicon rubber for curing EMAS at room temperature, which is good in flowability, capable of rapidly curing, good in flame retardance, moderate in strength and good in adhesive strength, is obtained, so that the application requirement of an EMAS system is met.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber, and more specifically relates to a single-component room-temperature curing EMAS special joint-filling silicone rubber and a preparation method. Background technique [0002] Although air travel is the safest way of travel in the world, due to operational errors, mechanical failures, bad weather and other reasons, the aircraft may rush out of the runway during take-off and landing, causing serious accidents and incidents, which is harmful to aviation safety. one of the main threats. [0003] In recent years, with the continuous increase of flight volume, the number of aircraft overshooting the runway is also on the rise. With the overall accident rate in the civil aviation industry stabilizing and declining, how to avoid serious accidents involving aircraft crashes and fatalities after overrunning the runway has become an important issue for the civil aviation industry. Especially for s...

Claims

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Application Information

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IPC IPC(8): C08L83/06C08K13/06C08K9/06C08K3/36C08K3/22C08K5/3492C08K5/57C08K5/5465C08K5/544C08K5/5425C08J3/24
Inventor 姜春水陶云峰刘平张先银刘洪史亚杰唐先成赵阳
Owner CHENGDU TALY TECH CO LTD
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