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Room curing fluoro rubber adhesive and preparation method

A room temperature curing, fluorine rubber raw rubber technology, applied in the direction of adhesives, etc., can solve the problems of low initial adhesion, low bonding strength, slow curing speed, etc., achieve high initial adhesion, low cost, and improve initial adhesion Effect

Inactive Publication Date: 2009-09-16
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low initial adhesion, slow curing speed and low bonding strength in existing fluororubber adhesives; and provide a room temperature curing fluororubber adhesive and a preparation method thereof

Method used

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  • Room curing fluoro rubber adhesive and preparation method

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specific Embodiment approach 1

[0018] Embodiment 1: In this embodiment, the room temperature curing fluororubber adhesive is composed of component A and component B, wherein component A is composed of 100 parts of fluororubber raw rubber, 5 to 15 parts of acid absorbing agent, 5-20 parts of reinforcing filler, 2-10 parts of vulcanizing agent, 10-30 parts of epoxy resin, 5-20 parts of polyurethane emulsion, 300-400 parts of organic solvent; component B is composed of 1-5 parts by weight It is made of 1 part of organic amine curing agent, 1-5 parts of silane coupling agent and 10-50 parts of organic solvent.

[0019] In this embodiment, before sizing, component A and component B are uniformly mixed in a weight ratio of 100:5-15.

specific Embodiment approach 2

[0020] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: Group A consists of 100 parts of fluororubber raw rubber, 8 to 12 parts of acid absorbing agent, 8 to 15 parts of reinforcing filler, 5 to 10 parts by weight. It is made of 8 parts of vulcanizing agent, 12-25 parts of epoxy resin, 8-16 parts of polyurethane emulsion and 320-380 parts of organic solvent.

specific Embodiment approach 3

[0021] Specific embodiment three: the difference between this embodiment and specific embodiment one is that: Group A consists of 100 parts of fluororubber raw rubber, 10 parts of acid absorbing agent, 12 parts of reinforcing filler, 6 parts of vulcanizing agent, 15 parts of Part epoxy resin, 12 parts polyurethane emulsion and 350 parts organic solvent.

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Abstract

The invention relates to a room curing fluoro rubber adhesive and a preparation method, solving the problems of low initial adhesive force, low curing rate and low adhesive intensity of current fluoro rubber adhesives. The adhesive of the invention comprises a component A and a component B; wherein, the component A is prepared by a fluoroelastomer compound, an epoxy resin, polyurethane emulsion and organic solvent; the component B is prepared by an organic amine curing agent, a silane coupling agent and solvent. The method is as follows: a. compounding raw fluorubber, an acid-acceptor, reinforcing fillers and a vulcanizing agent, dissolving the components in the organic solvent, adding the epoxy resin and polyurethane emulsion and evenly stirring the mixture to obtain the component A; b. evenly stirring the organic amine curing agent, silane coupling agent and organic solvent to obtain the component B. The adhesive of the invention has the advantages of high initial adhesive force, high room curing rate and adhesive intensity and can be used for adhesion of the fluorubber and metallic materials. The preparation of the adhesive is simple in technology and low in cost.

Description

technical field [0001] The invention relates to a fluorine rubber adhesive and a preparation method thereof. Background technique [0002] Fluorine rubber adhesive is a special adhesive product with fluorine rubber as the main material. It has excellent heat resistance, oil resistance and air aging resistance. It is mainly used for bonding fluorine rubber and metal materials. According to the curing process, fluorine rubber adhesives can be divided into high temperature vulcanization type and room temperature curing type. High-temperature vulcanized fluororubber adhesive needs to be cured under high temperature and high pressure. For example, CN101157832A discloses a high-temperature vulcanized fluororubber adhesive, which has higher bonding strength after being vulcanized at 170°C and 230°C. Room temperature curing fluororubber adhesives can complete the curing reaction at room temperature and under contact pressure, especially suitable for working conditions that cannot b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J127/16C09J127/18C09J127/20
Inventor 李欣刘晓辉孔宪志赵颖张大勇王刚朱金华
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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