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High-strength epoxy sealing adhesive for watertight connectors and preparation method thereof

A watertight connector and epoxy sealing technology, which is applied in the directions of epoxy resin glue, adhesives, adhesive additives, etc., can solve the problems of the complex control method of uniform dispersion of nanoparticles, and it is difficult to solve the problems of high-efficiency sealing of watertight connectors in the deep sea, etc. Achieve the effect of improving the force integrity, reducing the rigidity of the material and improving the strength of the material

Pending Publication Date: 2021-03-30
胡清波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this research is still in the laboratory stage, and the uniform dispersion control method of nanoparticles is relatively complicated, and it is difficult to solve the problem of high-efficiency deep-sea sealing of watertight connectors on a large scale.

Method used

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  • High-strength epoxy sealing adhesive for watertight connectors and preparation method thereof
  • High-strength epoxy sealing adhesive for watertight connectors and preparation method thereof
  • High-strength epoxy sealing adhesive for watertight connectors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing a high-strength epoxy sealing adhesive for watertight connectors, comprising the following steps.

[0035] Step 1. According to the formula of component A of Example 1 in Table 1, each raw material is weighed according to parts by weight.

[0036] Step 2: Put the epoxy resin in the dispersing tank, add colored fillers, dispersing aids, defoamers, and thixotropic agents, and disperse at high speed at 800r / min until uniform.

[0037] Step 3, then add reinforcing filler and silane coupling agent to the dispersion tank in sequence, and disperse at a high speed at 1200r / min until the fineness is below 80μm to obtain component A.

[0038] Step 4. Mix component A and component B according to the weight ratio of 2.5:1, stir well and evenly to obtain high-strength epoxy sealing adhesive.

Embodiment 2

[0040] A method for preparing a high-strength epoxy sealing adhesive for watertight connectors, comprising the following steps.

[0041] Step 1. According to the formula of component A in Example 2 in Table 1, each raw material is weighed according to parts by weight.

[0042] Step 2: Put the epoxy resin in the dispersing tank, then add colored fillers, dispersing aids, defoamers, and thixotropic agents, and disperse at high speed at 900r / min until uniform.

[0043] Step 3, then add reinforcing filler and silane coupling agent to the dispersion tank in sequence, and disperse at a high speed at 1300r / min until the fineness is below 80μm to obtain component A.

[0044] Step 4. Mix component A and component B according to the weight ratio of 3:1, stir well and evenly to obtain high-strength epoxy sealing adhesive.

Embodiment 3

[0046]A method for preparing a high-strength epoxy sealing adhesive for watertight connectors, comprising the following steps.

[0047] Step 1. According to the formula of component A of Example 3 in Table 1, each raw material is weighed according to parts by weight.

[0048] Step 2: Put the epoxy resin in the dispersing tank, then add colored fillers, dispersing aids, defoamers, and thixotropic agents, and disperse at a high speed at 1000r / min until uniform.

[0049] Step 3, then add reinforcing filler and silane coupling agent to the dispersion tank in sequence, and disperse at a high speed at 1500r / min until the fineness is below 80μm to obtain component A.

[0050] Step 4. Mix component A and component B according to the weight ratio of 3.5:1, stir well and evenly to obtain high-strength epoxy sealing adhesive.

[0051] The epoxy sealing adhesive obtained in Example 2 was made into a sample (film thickness 150±10 μm), immersed in artificial seawater, and the surface state...

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Abstract

The invention relates to a high-strength epoxy sealing adhesive for watertight connectors and a preparation method thereof, the adhesive is composed of a component A and a component B, and the mass ratio of the component A to the component B is (2.5-3.5):1; the component A is prepared from the following raw materials in parts by weight: 70-80 parts of epoxy resin, 15-25 parts of reinforcing filler, 0.1-0.5 part of coloring filler, 0-2 parts of a silane coupling agent, 0.5-1 part of a dispersing aid, 0.5-1 part of a defoaming agent and 0.5-1 part of a thixotropic agent; and the component B is apolyimide reinforced amine curing agent. The excellent mechanical property and excellent connecting property of a polyimide structure are utilized, the polyimide structure is compounded with epoxy resin, and when the polyimide structure is applied to a watertight connector, a high-strength epoxy sealing adhesive material suitable for the marine environment with the water depth larger than 2,000 mand the environment with the pressure larger than 20 MPa is expected to be obtained.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and in particular relates to a high-strength epoxy sealing adhesive for watertight connectors and a preparation method thereof. Background technique [0002] With the continuous development of my country's marine industry and the continuous development of marine resources, the advancement of deep-sea engineering has become a powerful means of supporting the future development of marine industry. As an important component in the development of the marine industry, watertight connectors are an important carrier for signal and power transmission, and the application performance of watertight connectors is often greatly affected by the complexity and particularity of the deep sea pressure environment. Common problems include poor contact, affecting the stability of signal and power transmission; watertightness failure, poor sealing of watertight connectors; vibration disintegration, affect...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J163/02C09J11/04C09J11/06C08G59/40
CPCC08G59/4042C08K2003/2227C09J11/04C09J11/06C09J163/00C08K13/04C08K7/26C08K7/14C08K5/544C08K3/04C08L21/00C08K5/5435C08L77/00C08K3/22C08K5/5425
Inventor 胡清波
Owner 胡清波
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