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A kind of potting glue suitable for alpine environment and its preparation method and application

A potting glue and environmental technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve problems such as unsatisfactory use, and achieve the effect of convenient operation and simple preparation process

Active Publication Date: 2016-09-28
GUANGZHOU HUINA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although silicone rubber is excellent in weather resistance and low temperature resistance, the temperature range of existing silicone rubber products under low temperature conditions is -50~-20°C, which obviously cannot meet the use under extreme conditions.

Method used

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  • A kind of potting glue suitable for alpine environment and its preparation method and application
  • A kind of potting glue suitable for alpine environment and its preparation method and application
  • A kind of potting glue suitable for alpine environment and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. In this embodiment, a potting compound suitable for use in an alpine environment is formed by mixing component A and component B; the raw material compositions of component A and component B are as follows in parts by weight:

[0027] Component A:

[0028]

[0029] Component B:

[0030]

[0031] *The coupling agent is: a mixture of γ-aminopropyltriethoxysilane:γ-(2,3-glycidoxy)propyltrimethoxysilane=1:1 by weight.

[0032] 2. In this embodiment, a method for preparing a potting compound suitable for use in an alpine environment is as follows:

[0033] Preparation of component A:

[0034] Put the raw materials of the above-mentioned component A in a vacuum disperser at a vacuum degree of -0.09MPa, a stirring speed of 25Hz, and a dispersion speed of 35Hz, and stir and mix for 40 minutes to obtain component A;

[0035] Preparation of component B:

[0036] Mix the raw materials of component B above for 20 minutes under nitrogen protection to obtain component B....

Embodiment 2

[0038] 1. In this embodiment, a potting compound suitable for use in an alpine environment is formed by mixing component A and component B; the raw material compositions of component A and component B are as follows in parts by weight:

[0039] Component A:

[0040]

[0041] Component B:

[0042]

[0043] 2. In this embodiment, a method for preparing a potting compound suitable for use in an alpine environment is as follows:

[0044] Preparation of component A:

[0045] Put the raw materials of the above-mentioned component A in a vacuum disperser at a vacuum degree of -0.07MPa, a stirring speed of 5 Hz, and a dispersion speed of 15 Hz, and stir and mix for 40 minutes to obtain component A;

[0046] Preparation of component B:

[0047] Mix the raw materials of the above component B with stirring and mixing for 10 minutes under the protection of nitrogen to obtain the component B.

Embodiment 3

[0049] 1. In this embodiment, a potting compound suitable for use in an alpine environment is formed by mixing component A and component B; the raw material compositions of component A and component B are as follows in parts by weight:

[0050] Component A:

[0051]

[0052] Component B:

[0053]

[0054] 2. In this embodiment, a method for preparing a potting compound suitable for use in an alpine environment is as follows:

[0055] Preparation of component A:

[0056] Put the raw materials of the above-mentioned component A in a vacuum disperser at a vacuum degree of -0.08MPa, a stirring speed of 10Hz, and a dispersion speed of 15Hz, and stir and mix for 45min to obtain component A;

[0057] Preparation of component B:

[0058] Mix the raw materials of the above component B with stirring and mixing for 10 minutes under the protection of nitrogen to obtain the component B.

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Abstract

The invention discloses a pouring sealant suitable for use in a high and cold environment. The pouring sealant is prepared by mixing a component A with a component B together, wherein the component A consists of the following raw materials in parts by weight: 80-130 parts of alpha, omega-dihydroxy polydimethylsiloxane, 20-50 parts of methyl silicone oil, 50-100 parts of retardant filler, 50-100 parts of calcium carbonate, 2-15 parts of a deep vulcanizing agent and 1-10 parts of carbon black; the component B comprises the following raw materials in parts by weight: 60-100 parts of methyl silicone oil, 10-30 parts of a crosslinking agent, 5-20 parts of a coupling agent and 0.2-5 parts of a catalyst. Besides, the invention also discloses a preparation method and an application of the pouring sealant suitable for use in the high and cold environment. By virtue of a formula design, shrinkage of the sealant in a low-temperature environment and damages caused by irregular particles to the sealant are reduced, so that the sealant can still work normally at a temperature lower than -60 DEG C. The preparation method disclosed by the invention is simple and is convenient to operate, and the pouring sealant is suitable for scientific researches, detecting instruments and equipment in extremely low temperature environments.

Description

technical field [0001] The invention relates to the technical field of polymer potting materials, in particular to a potting compound suitable for use in alpine environments, a preparation method and application thereof. Background technique [0002] In an extremely cold environment, the temperature may reach minus 60°C or even lower. With the needs of polar development and exploration research, more and more electronic instruments and equipment need to be used in extremely cold environments. Although silicone rubber is excellent in weather resistance and low temperature resistance, the temperature range of the current prior art silicone rubber products under low temperature conditions is -50 to -20°C, which obviously cannot be used under extreme conditions. Therefore, it is extremely urgent and necessary to research and develop silicone rubber potting products suitable for use in alpine environments. Contents of the invention [0003] The purpose of the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/06C09J11/04
Inventor 李大卿廖帮伟黄剑文黄坚林鸿李彬诚
Owner GUANGZHOU HUINA NEW MATERIAL TECH