Neutron shielding fireproof silicone adhesive and preparation method thereof

A silicone glue, neutron technology, applied in shielding, reactor, nuclear engineering and other directions, can solve the problem of undisclosed shielding neutron radiation performance, etc., to achieve the effect of protecting penetrations, improving mechanical properties, and inhibiting volatilization

Pending Publication Date: 2021-03-16
中广核高新核材科技(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN108659546A discloses a high-density, high-elasticity fire-proof and explosion-proof silicone sealing material for nuclear power. The silicone sealing material has strong impact resistance, good elasticity, fire-proof and explosion-proof, and good sealing performance. Properties of neutron radiation

Method used

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  • Neutron shielding fireproof silicone adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a neutron shielding fireproof silicone glue, which is composed of component A and component B with a mass ratio of 1:0.8;

[0031] Component A contains 100 parts of vinyl polysiloxane, 10 parts of methyl hydrogen silicone oil, 40 parts of basic magnesium sulfate whiskers, 25 parts of ammonium salt modified clay, 30 parts of boron carbide, and 30 parts of modified gas phase 8 parts of white carbon black and plasticizer.

[0032] Component B contains 80 parts of vinyl polysiloxane, 20 parts of polymethylphenylsiloxane, 0.5 parts of chloroplatinic acid, 25 parts of basic magnesium sulfate whiskers, 15 parts of organic ammonium salt modified clay, 30 parts Boron carbide, 20 parts of modified fumed silica, 3 parts of dimethyl silicone oil.

[0033] Concrete preparation steps are:

[0034] 1. Add vinyl polysiloxane, fumed silica, basic magnesium sulfate whiskers, organic ammonium salt modified clay, methyl hydrogen-containing silicone oil, boron car...

Embodiment 2

[0038] This embodiment provides a neutron shielding fireproof silicone glue, which is composed of component A and component B with a mass ratio of 1:0.8;

[0039] Component A contains 100 parts of vinyl polysiloxane, 8 parts of methyl hydrogen silicone oil, 45 parts of basic magnesium sulfate whiskers, 35 parts of ammonium salt modified clay, 30 parts of boron carbide, and 30 parts of modified fumed white Carbon black, 7 parts of simethicone.

[0040] Component B contains 70 parts of vinyl polysiloxane, 30 parts of polymethylphenylsiloxane, 0.5 parts of chloroplatinic acid, 30 parts of basic magnesium sulfate whiskers, 20 parts of organic ammonium salt modified clay, 30 parts Boron carbide, 35 parts of modified fumed silica, 3 parts of dimethyl silicone oil.

[0041] Concrete preparation steps are:

[0042]1. Add vinyl polysiloxane, modified fumed silica, basic magnesium sulfate whiskers, organic ammonium salt modified clay, methyl hydrogen silicone oil, boron carbide, and d...

Embodiment 3

[0046] This embodiment provides a neutron shielding fireproof silicone glue, which is composed of component A and component B with a mass ratio of 1:0.8;

[0047] Component A contains 100 parts of vinyl polysiloxane, 8 parts of methyl hydrogen silicone oil, 45 parts of basic magnesium sulfate whiskers, 35 parts of ammonium salt modified clay, 30 parts of boron carbide, and 30 parts of modified fumed white Carbon black, 5 parts of simethicone.

[0048] Component B contains 90 parts of vinyl polysiloxane, 2 parts of chloroplatinic acid, 10 parts of polymethylphenylsiloxane, 35 parts of basic magnesium sulfate whiskers, 25 parts of organic ammonium salt modified clay, 40 parts Boron carbide, 35 parts of modified fumed silica, 7 parts of dimethyl silicone oil.

[0049] Concrete preparation steps are:

[0050] 1. Add vinyl polysiloxane, fumed silica, basic magnesium sulfate whiskers, organic ammonium salt modified clay, methyl hydrogen-containing silicone oil, boron carbide, and ...

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Abstract

The present invention discloses a neutron shielding fireproof silicone adhesive, which comprises a component A and a component B. The mass ratio of the component A to the component B is 1: 0.7-0.9, and the component A comprises the following components in parts by weight: 100 parts of vinyl polysiloxane, 8-10 parts of methyl hydrogen-containing silicone oil, 35-40 parts of basic magnesium sulfatewhisker, 25-35 parts of organic ammonium salt modified clay, 30-40 parts of boron carbide, 25-35 parts of white carbon black, and 5-8 parts of a plasticizer; and the component B comprises the following components in parts by weight: 70-90 parts of vinyl polysiloxane, 10-30 parts of polymethylphenyl siloxane, 0.5-2 parts of a catalyst, 20-40 parts of basic magnesium sulfate whiskers, 15-35 parts oforganic ammonium salt modified clay, 25-45 parts of boron carbide, 20-40 parts of white carbon black and 3-10 parts of a plasticizer. The neutron shielding fireproof silicone adhesive disclosed by the invention has radiation shielding performance and high flame retardance on the premise of having good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of fireproof sealing materials, in particular to a neutron shielding fireproof silicone glue and a preparation method thereof. Background technique [0002] Fireproof sealing material is a material with fireproof and smokeproof functions, which is used to seal or fill empty openings, through holes and their annular gaps and building gaps. If it is used in nuclear power plants and other scenarios with nuclear radiation, it is also necessary to consider the radiation shielding performance of the material to prevent radiation from spreading from areas such as penetration holes, thereby endangering the safety of nuclear island staff. At present, most civil fireproof sealing materials do not consider the radiation shielding performance, while the special sealing materials for nuclear power generally increase the proportion of anti-radiation agents to achieve the effect of radiation shielding, but this will lead t...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/05C08L83/04C08K13/06C08K7/08C08K9/04C08K3/34C08K3/38C08K9/06C08K7/26G21F1/10
CPCC08L83/04G21F1/106C08L2201/02C08L2205/025C08L2205/035C08K2201/006C08K13/06C08K7/08C08K9/04C08K3/346C08K3/38C08K9/06C08K7/26
Inventor 刘天宇成鹏于广益姜朋飞雷伟伟
Owner 中广核高新核材科技(苏州)有限公司
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