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Radon-adsorbing and anti-radiation coating as well as preparation method and application thereof

A technology for anti-radiation coatings and raw materials, applied in the field of coatings, can solve the problems of hidden safety hazards, shortages, and high radon content, and achieve the effects of reducing the harm to human health, saving manpower and material resources, and reducing radon content.

Active Publication Date: 2017-11-17
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Radon widely exists in people's living environment, especially the radon released from indoor building materials and house foundation soil is very easy to accumulate indoors, resulting in a high content of indoor radon, which brings great safety hazards to people
At present, there is still a lack of relevant research on the prevention and control of indoor radon, and there are few reports on products that reduce indoor radon content.

Method used

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  • Radon-adsorbing and anti-radiation coating as well as preparation method and application thereof
  • Radon-adsorbing and anti-radiation coating as well as preparation method and application thereof
  • Radon-adsorbing and anti-radiation coating as well as preparation method and application thereof

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preparation example Construction

[0055] According to another aspect of the present invention, the present invention provides the preparation method of above-mentioned radon-absorbing anti-radiation coating, comprising the steps of:

[0056] (A) Preparation of modified graphene

[0057] Dissolving graphene in N,N-dimethylformamide, adding hexamethylene diisocyanate to react with graphene, centrifuging and washing to remove unreacted hexamethylene diisocyanate, to obtain modified graphene;

[0058] (B) Preparation of graphene-polyacrylic acid

[0059] Dissolving the modified graphene in N,N-dimethylformamide, adding polyacrylic acid, and continuously stirring, so that the graphene and polyacrylic acid undergoes urethane reaction, that is, the graphene-polyacrylic acid is obtained;

[0060] (C) Preparation of radon-absorbing anti-radiation coating

[0061] The graphene-polyacrylic acid, matrix resin, pigments and fillers, deionized water and optional additives are evenly mixed to prepare the radon-absorbing ra...

Embodiment 1

[0073] The present embodiment provides a radon-absorbing anti-radiation coating, which is prepared from the following raw materials by mass fraction: 5 parts of graphene-polyacrylic acid, 120 parts of styrene-acrylic resin, 340 parts of deionized water, 500 parts of pigments and fillers, 6.5 parts of thickener, 1 part of viscosity modifier, 8 parts of antifreeze, 4 parts of dispersant, 1 part of wetting agent, 3 parts of defoamer, 1.5 parts of preservative, 10 parts of film-forming aids, of which, pigments and fillers It is a mixture of calcined kaolin, washed kaolin, titanium dioxide and heavy calcium, and the mass ratio of the four is 1:1:1:7; the thickener includes hydroxyethyl cellulose and polyurethane thickener RM-8W, and the two The mass ratio is 11:1; the viscosity regulator is AMP-95; the antifreeze is ethylene glycol; the dispersant is sodium lauryl sulfate; the wetting agent is PE-100; the defoamer is emulsified dimethyl Silicone oil; preservative is BIT; film-formi...

Embodiment 2

[0075] The present embodiment provides a radon-absorbing anti-radiation coating. The difference between the present embodiment and embodiment 1 is that the graphene-polyacrylic acid is 50 parts, the styrene-acrylic resin is 90 parts, and the deionized water is 360 parts. 465 parts of pigments and fillers.

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Abstract

The invention provides a radon-adsorbing and anti-radiation coating as well as a preparation method and an application thereof and relates to the technical field of coatings. The radon-adsorbing and anti-radiation coating is mainly prepared from raw materials in parts by mass as follows: 5-50 parts of graphene-polyacrylic acid, 90-120 parts of matrix resin, 330-370 parts of deionized water and 450-550 parts of pigment and filler, and the sum of the raw materials is 1000 parts, wherein graphene-polyacrylic acid is prepared from modified graphene and polyacrylic acid through urethanation. The technical problem of big potential safety hazard caused by high content of radioactive radon gas indoors due to the fact that radon released from building materials and building foundation soil is accumulated indoors easily is solved, precipitation of gas in walls and formations can be hindered, radon in air can also be efficiently adsorbed, so that dwelling environment is effectively improved, harm of radon to human health is reduced, and body health of people is guaranteed.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a radon-absorbing anti-radiation coating and its preparation method and application. Background technique [0002] Radon is a chemically inactive elemental inert gas, colorless, odorless, and tasteless. It is difficult to chemically react with other elements, but after being inhaled into the human body, it will decay and generate alpha particles, causing radiation damage to the respiratory system and causing lung cancer. . According to the International Cancer Research Center of the World Health Organization, radon is one of the main environmental carcinogens, and its radiation damage to the human body accounts for more than 55% of all radiation damage received by the human body in its lifetime. There are one-fifth of lung cancer patients in the world. Associated with radon gas. [0003] Radon widely exists in people's living environment, especially the radon released from ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/14C09D7/12
CPCC08K2003/2241C08K2003/265C08K2201/003C08K2201/014C08L2205/035C09D5/14C09D125/14C08L1/284C08L75/04C08L83/04C08K13/06C08K9/04C08K9/08C08K3/04C08K3/346C08K3/26C08K5/103
Inventor 张琦朱巍张舒羽郝丽娟
Owner SUZHOU UNIV
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