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Fluorine-containing anti-corrosion silicone adhesive and preparation method thereof

An organic silica gel, corrosion-resistant technology, applied in the direction of adhesives, adhesive additives, epoxy resin glue, etc., can solve the problems of low adhesion, small solubility parameters of fluorine-containing materials, poor adhesion performance, etc.

Inactive Publication Date: 2017-09-08
FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adhesive adsorption on the surface of fluorine-containing materials is caused by intermolecular forces, and fluorine-containing materials can only form weak dispersion forces, so their adhesion performance is poor; Molecular additives are easy to migrate to the surface of the material to form a weak boundary layer, which seriously affects the bonding strength; (5) The solubility parameter of fluorine-containing materials is very small, so the adhesion to other substances is also very small

Method used

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  • Fluorine-containing anti-corrosion silicone adhesive and preparation method thereof
  • Fluorine-containing anti-corrosion silicone adhesive and preparation method thereof
  • Fluorine-containing anti-corrosion silicone adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Weigh 35 parts of fluorine-containing compound perfluoromethyl methacrylate, 10 parts of amine compound N'N-4,4'-dibenzomethane type bismaleimide resin (BMI), epoxy resin compound ethylene bisphenol 30 parts of F-type epoxy resin, 25 parts of phenyl hydrogen-containing silicone resin, 2 parts of toughening agent carboxyl liquid nitrile rubber, 0.001 part of catalyst triethylenetetraammonia, add to the reaction device under the protection of inert gas, stir and then add to solidify 1.5 parts of m-phenylenediamine, heated to 40°C, continued to stir for 20 minutes, cooled to room temperature to obtain a colorless transparent liquid, removed air bubbles under reduced pressure, heated and solidified at 50°C for 30 minutes, and the organic Silicone adhesive.

Embodiment 2

[0019] Weigh 42 parts of fluorine-containing compound perfluoromethyl methacrylate, 15 parts of amine compound N'N-4,4'-dibenzomethane type bismaleimide resin (BMI), epoxy resin compound quinone 35 parts of type epoxy resin, 35 parts of phenyl hydrogen-containing silicone resin, 2 parts of polysulfide rubber as toughening agent, and 0.005 part of catalyst triethylenetetraammonia. 1.3 parts of diamine, heated to 45°C, continued to stir for 25 minutes, cooled to room temperature to obtain a colorless transparent liquid, removed air bubbles under reduced pressure, heated and solidified at 60°C for 30 minutes, and the silicone adhesive was prepared .

Embodiment 3

[0021] Weigh 40 parts of fluorine-containing compound perfluoromethyl methacrylate, 13 parts of amine compound N'N-4,4'-dibenzyme type bismaleimide resin (BMI), epoxy resin compound tetraphenol group 28 parts of ethane-type epoxy resin, 35 parts of phenyl hydrogen-containing silicone resin, 4 parts of toughening agent liquid silicone rubber, 0.003 part of catalyst triethylenetetraammonia, add to the reaction device under the protection of inert gas, add curing agent after stirring 1.9 parts of m-phenylenediamine, heated to 50°C, continued to stir for 30 minutes, cooled to room temperature to obtain a colorless transparent liquid, removed air bubbles under reduced pressure, heated and solidified at 70°C for 30 minutes, and the organic silica gel was obtained adhesive.

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Abstract

The invention belongs to the technical field of high polymer materials and discloses a fluorine-containing anti-corrosion silicone adhesive and a preparation method thereof. The fluorine-containing anti-corrosion silicone adhesive comprises the following components in parts by weight: 30-50 parts of a fluorine-containing compound, 10-15 parts of an amine compound, 20-40 parts of an epoxy resin compound, 25-40 parts of hydrogen-containing phenyl silicone resin, 2-4 parts of a flexibilizer, 0.001-0.005 part of a catalyst and 1-2 parts of a curing agent. As the fluorine-containing compound is added and used in the fluorine-containing anti-corrosion silicone adhesive and can perform additive reaction with the epoxy resin compound, the silicone adhesive obtained after curing not only has high bonding strength of epoxy resin but also has corrosion resistance of the fluorine-containing compound, and therefore, has a wide application value.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a fluorine-containing corrosion-resistant organic silica gel adhesive and a preparation method thereof. Background technique [0002] Fluorine-containing materials are widely used in cutting-edge science and technology such as aerospace, rockets, missiles, atomic energy, aviation, military industry, chemical industry, Machinery, electronic appliances, textiles, transportation, construction, medical care and living appliances, etc., and play an extremely important role. [0003] However, fluorine-containing materials are typically the most "hard-to-stick" polymer materials, thus limiting their applications in many fields. The reasons why fluorine-containing materials are difficult to bond mainly include the following aspects (1) The surface energy of fluorine-containing materials is low, and the wettability is relatively poor. General adhesives cannot fully wet fluorine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/05C09J163/00C09J163/08C09J11/08C09J11/06
CPCC08L2205/03C09J11/06C09J11/08C09J163/00C09J163/08C09J183/04C08L83/04C08L13/00C08L63/00
Inventor 郭浩丁爱顺靳瑞文张彦斌顾广新严永良丁其林
Owner FUDAN UNIV
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