CN115368787A - Novel tritium-proof coating and preparation method thereof - Google Patents

Novel tritium-proof coating and preparation method thereof Download PDF

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Publication number
CN115368787A
CN115368787A CN202210954574.7A CN202210954574A CN115368787A CN 115368787 A CN115368787 A CN 115368787A CN 202210954574 A CN202210954574 A CN 202210954574A CN 115368787 A CN115368787 A CN 115368787A
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China
Prior art keywords
tritium
proof coating
percent
novel
asphalt
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Application number
CN202210954574.7A
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CN115368787B (en
Inventor
游国强
刘晓明
金潮
蘧艳峰
吴尧
赵怀璞
郝杰
刘凯
马跃峰
郑建国
杜旭红
赵凯杰
路文芳
路晶
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China Institute for Radiation Protection
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China Institute for Radiation Protection
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C09D127/08—Homopolymers or copolymers of vinylidene chloride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/14—Gas barrier composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/10—Nuclear fusion reactors

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The invention discloses a novel tritium-proof coating and a preparation method thereof, the novel tritium-proof coating adopts polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt and methyl acrylate as main components, has low permeability, difficult aging and good sealing property, can play a role in preventing radiation and preventing water on the inner and outer walls of a building, and the tritium-proof coating has the tritium concentration of 10 6 Bq/m 3 ～10 12 Bq/m 3 The adsorption capacity is less than or equal to 5 percent within 4 hours under the environment; the novel tritium-proof coating disclosed by the invention is simple in preparation method, and the tritium-proof coating can be quickly and effectively prepared.

Description

Novel tritium-proof coating and preparation method thereof
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a novel tritium-proof coating and a preparation method thereof.
Background
Tritium can be subjected to exchange reaction with water and isotopes in organisms, exists in air, water, real objects and all organisms, is combined with DNA and RNA in cells, directly generates irradiation effect and generates radiation hazard to human bodies. In the prior art, epoxy resin is often adopted to spray a concrete coating in a tritium environment. In a radiation environment, the epoxy resin used as a tritium-proof coating has the defects of poor tritium-proof performance and easy aging, and the sprayed coating often has the phenomena of cracking and the like; but the poor leakproofness of seam welding department causes tritium to permeate into the building to use stainless steel material, and is great to the intensity influence such as reinforcing bar, cement in the building.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a novel tritium-proof coating which has low permeability, is not easy to age, has good sealing property and can effectively reduce the influence of tritium on the strength of reinforcing steel bars, cement and the like in a building after the coating is carried out on the surface of the building, and a preparation method thereof.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows: a novel tritium-proof coating comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water.
Preferably, the novel tritium-proof coating comprises, by mass, 50-73% of polyvinylidene chloride copolymer emulsion, 5-8% of chlorinated butyl rubber, 5-20% of asphalt, 2-5% of methyl acrylate, 1-2% of ethanol, 0.5-2% of palm wax, 1-3% of sodium hydroxide, and the balance of purified water.
The embodiment of the invention also provides a preparation method of the novel tritium-proof coating, which comprises the steps of placing polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate and purified water in a reaction kettle, heating to 150-180 ℃, stirring for 1-2 hours, and sequentially adding ethanol, sodium hydroxide and palm wax in the stirring process; cooling to room temperature.
The technical scheme adopted by the invention has the beneficial effects that the novel tritium-proof coating adopts polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt and methyl acrylate as main components, has low permeability, is not easy to age, has good sealing property, and can play a role in preventing radiation and preventing water on the inner and outer walls of a building; the novel tritium-proof coating disclosed by the invention is simple in preparation method, does not need large-scale vacuum equipment, is convenient to regulate and control, and can be used for quickly and effectively preparing the tritium-proof coating.
Detailed Description
The present invention will be described in detail with reference to examples.
Example one
The embodiment of the invention provides a novel tritium-proof coating which comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water.
Preferably, the novel tritium-proof coating comprises, by mass, 50-73% of polyvinylidene chloride copolymer emulsion, 5-8% of chlorinated butyl rubber, 5-20% of asphalt, 2-5% of methyl acrylate, 1-2% of ethanol, 0.5-2% of palm wax, 1-3% of sodium hydroxide, and the balance of purified water.
The embodiment of the invention also provides a preparation method of the novel tritium-proof coating, the polyvinylidene chloride copolymer emulsion, the chlorinated butyl rubber, the asphalt, the methyl acrylate and the purified water are placed in a reaction kettle, the heating is carried out to 150-180 ℃, the stirring is carried out for 1-2 hours, and the ethanol, the sodium hydroxide and the palm wax are sequentially added in the stirring process; cooling to room temperature.
The novel tritium-proof coating prepared by the method provided by the embodiment of the invention has a tritium concentration of 10 6 Bq/m 3 ～10 12 Bq/m 3 The adsorption capacity is less than or equal to 5 percent within 4 hours under the environment.
Example two
The embodiment of the invention provides a novel tritium-proof coating which comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water.
Preferably, the novel tritium-proof coating comprises, by mass, 60% of polyvinylidene chloride copolymer, 7% of chlorinated butyl rubber, 15% of asphalt, 4% of methyl acrylate, 1.5% of ethanol, 1% of palm wax, 1.5% of sodium hydroxide and 10% of purified water.
The embodiment of the invention also provides a preparation method of the novel tritium-proof coating, wherein the polyvinylidene chloride copolymer emulsion, the chlorinated butyl rubber, the asphalt, the methyl acrylate and the purified water with the contents are placed in a reaction kettle, the temperature is heated to 155-160 ℃, the stirring is carried out for 1 hour, and the ethanol, the sodium hydroxide and the palm wax are sequentially added in the stirring process; cooling to room temperature.
The novel tritium-proof coating prepared by the method provided by the embodiment of the invention has a tritium concentration of 10 9 Bq/m 3 The adsorption capacity in 4 hours under the environment is 4 percent.
EXAMPLE III
The embodiment of the invention provides a novel tritium-proof coating which comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water.
Preferably, the novel tritium-proof coating comprises, by mass, 72% of polyvinylidene chloride copolymer emulsion, 5% of chlorinated butyl rubber, 10% of asphalt, 3% of methyl acrylate, 1.5% of ethanol, 0.5% of palm wax, 1.5% of sodium hydroxide and 6.5% of purified water.
The embodiment of the invention also provides a preparation method of the novel tritium-proof coating, wherein the polyvinylidene chloride copolymer emulsion, the chlorinated butyl rubber, the asphalt, the methyl acrylate and the purified water with the contents are placed in a reaction kettle, the temperature is heated to 165-175 ℃, the stirring is carried out for 2 hours, and the ethanol, the sodium hydroxide and the palm wax are sequentially added in the stirring process; cooling to room temperature.
The novel tritium-proof coating prepared by the method provided by the embodiment of the invention has the tritium concentration of 10 8 Bq/m 3 The adsorption capacity in 4h under the environment is 3.7%.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims (9)

1. A novel tritium-proof coating is characterized in that: the tritium-proof coating comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water; the content of each component is calculated by mass percent, 50-73% of polyvinylidene chloride copolymer emulsion, 5-8% of chlorinated butyl rubber, 5-20% of asphalt, 2-5% of methyl acrylate, 1-2% of ethanol, 0.5-2% of palm wax, 1-3% of sodium hydroxide, and the balance of purified water.
2. A novel tritium-proof coating according to claim 1, characterized in that: the tritium-proof coating comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water; the content of each component is calculated by mass percent, 60 percent of polyvinylidene chloride copolymer, 7 percent of chlorinated butyl rubber, 15 percent of asphalt, 4 percent of methyl acrylate, 1.5 percent of ethanol, 1 percent of palm wax, 1.5 percent of sodium hydroxide and 10 percent of purified water.
3. A novel tritium-proof coating according to claim 1, characterized in that: the tritium-proof coating comprises polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate, ethanol, palm wax, sodium hydroxide and purified water; the contents of the components by mass percent are 72 percent of polyvinylidene chloride copolymer, 5 percent of chlorinated butyl rubber, 10 percent of asphalt, 3 percent of methyl acrylate, 1.5 percent of ethanol, 0.5 percent of palm wax, 1.5 percent of sodium hydroxide and 6.5 percent of purified water.
4. A novel tritium-proof coating according to claim 1, characterized in that: the tritium-proof coating has tritium concentration of 10 6 Bq/m 3 ～10 12 Bq/m 3 The adsorption capacity is less than or equal to 5 percent within 4 hours under the environment.
5. A novel tritium-proof coating according to claim 2, characterized in that: the tritium-proof coating has tritium concentration of 10 9 Bq/m 3 The adsorption capacity in 4h under the environment is 4%.
6. A novel tritium-proof coating according to claim 3, characterized in that: the tritium-proof coating has tritium concentration of 10 8 Bq/m 3 The adsorption capacity in 4 hours under the environment is 3.7 percent.
7. A method for preparing a novel tritium-proof coating according to any one of claims 1 to 6, which is characterized in that: placing the polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate and purified water in a reaction kettle, heating to 150-180 ℃, stirring for 1-2 hours, and sequentially adding ethanol, sodium hydroxide and palm wax in the stirring process; and cooling to room temperature to obtain the novel tritium-proof coating.
8. The preparation method of the novel tritium-proof coating as claimed in claim 7, characterized in that: placing the polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate and purified water in a reaction kettle, heating to 155-160 ℃, stirring for 1 hour, and sequentially adding ethanol, sodium hydroxide and palm wax in the stirring process; cooling to room temperature to obtain the novel tritium-proof coating.
9. The preparation method of the novel tritium-proof coating as claimed in claim 7, characterized in that: placing the polyvinylidene chloride copolymer emulsion, chlorinated butyl rubber, asphalt, methyl acrylate and purified water in a reaction kettle, heating to 165-175 ℃, stirring for 2 hours, and sequentially adding ethanol, sodium hydroxide and palm wax in the stirring process; and cooling to room temperature to obtain the novel tritium-proof coating.
CN202210954574.7A 2022-08-10 2022-08-10 Tritium-proof paint and preparation method thereof Active CN115368787B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083128A (en) * 1992-08-20 1994-03-02 中国原子能科学研究院 Process for preparing tritium-permeation-resistant stainless steel material
CN1342715A (en) * 2000-09-07 2002-04-03 三井化学株式会社 Olefine copolymer containing polar group, preparation method thereof, thermoplastic resin composition containing it and application thereof
CN104046233A (en) * 2014-06-26 2014-09-17 无锡市崇安区科技创业服务中心 High-toughness coating for external wall and preparation method thereof
CN106459241A (en) * 2014-06-20 2017-02-22 住友化学株式会社 Aqueous emulsion, coating film, cured product, and laminate
CN106929831A (en) * 2015-12-30 2017-07-07 核工业西南物理研究院 A kind of preparation method of aluminum oxide tritium permeation coating
CN109712736A (en) * 2018-12-25 2019-05-03 西南科技大学 A kind of Tritium Protection material and preparation method thereof
WO2019113273A1 (en) * 2017-12-07 2019-06-13 Gcp Applied Technologies Inc. Integrated air barrier assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083128A (en) * 1992-08-20 1994-03-02 中国原子能科学研究院 Process for preparing tritium-permeation-resistant stainless steel material
CN1342715A (en) * 2000-09-07 2002-04-03 三井化学株式会社 Olefine copolymer containing polar group, preparation method thereof, thermoplastic resin composition containing it and application thereof
CN106459241A (en) * 2014-06-20 2017-02-22 住友化学株式会社 Aqueous emulsion, coating film, cured product, and laminate
CN104046233A (en) * 2014-06-26 2014-09-17 无锡市崇安区科技创业服务中心 High-toughness coating for external wall and preparation method thereof
CN106929831A (en) * 2015-12-30 2017-07-07 核工业西南物理研究院 A kind of preparation method of aluminum oxide tritium permeation coating
WO2019113273A1 (en) * 2017-12-07 2019-06-13 Gcp Applied Technologies Inc. Integrated air barrier assembly
CN109712736A (en) * 2018-12-25 2019-05-03 西南科技大学 A kind of Tritium Protection material and preparation method thereof

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