CN107312439A - A kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof - Google Patents

A kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof Download PDF

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CN107312439A
CN107312439A CN201710607377.7A CN201710607377A CN107312439A CN 107312439 A CN107312439 A CN 107312439A CN 201710607377 A CN201710607377 A CN 201710607377A CN 107312439 A CN107312439 A CN 107312439A
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aqueous
parts
aqueous polyurethane
neutron irradiation
polyurethane coating
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CN107312439B (en
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陶灿
戎佳萌
徐杰
王继印
贾娟
潘轸
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HEFEI SIJINGQI CHEMICAL MATERIALS Co Ltd
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HEFEI SIJINGQI CHEMICAL MATERIALS Co Ltd
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Abstract

The present invention discloses a kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof, belongs to technical field of coatings, the aqueous polyurethane coating of the anti-neutron irradiation includes the component of following parts by weight：30 50 parts of aqueous polyurethane emulsion, 3 10 parts of graphene, 10 20 parts of rare earth oxide, 10 20 parts of boron carbide, 5 10 parts of nano aluminium oxide emulsion, 12 parts of aqueous dispersion, 12 parts of aqueous defoamer, 12 parts of aqueous wetting agent, 12 parts of aqueous levelling agent, 0.5 2 parts of aqueous suspension agent, 23 parts of water-based thickener.Aqueous polyurethane prepared by the present invention has excellent mechanical performance and adhesive property, can be with the inorganic filler of the anti-neutron irradiation of addition of vast scale.

Description

A kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of aqueous polyurethane coating of anti-neutron irradiation and its preparation Method.
Background technology
With the development of Nuclear Electricity, many seat nuclears reactor need to be built.Inside the current nuclear reactor all There are corresponding overcoat, screen layer, reflecting layer, in atomic nucleus normal work, can prevent neutron from leaking.But such as atom There is abnormal accident in nuclear reactor, will result in substantial amounts of neutron and leaks, and especially occurs in certain special cases lethal During neutron current, these neutrons that leak will bring great harm to the mankind and environment.Neutron irradiation is to compare gamma-rays in nuclear radiation More there is destructive power and dangerous radiation, thus it is even more important to the protection of neutron irradiation.
At present for nuclear radiation protection based on heavy metal and transition metal oxide, this kind of material consumptive material is big, expensive, Processing construction is difficult, and is difficult to obtain a seal shielded completely and exist potential dangerous.The invention provides one kind Anti- neutron irradiation aqueous polyurethane coating, can effectively solve the above problems.
The content of the invention
The present invention proposes a kind of aqueous polyurethane coating of anti-neutron irradiation and preparation method thereof, solves existing anti-neutron spoke Penetrate the problem of coating material consumptive material is big, expensive, processing construction is difficult.
In order to solve the above technical problems, the technical proposal of the invention is realized in this way：
A kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：
30-50 parts of aqueous polyurethane emulsion, 3-10 parts of graphene, 10-20 parts of rare earth oxide, 10-20 parts of boron carbide, receive 5-10 parts of aluminum oxide emulsion of rice, 1-2 parts of aqueous dispersion, 1-2 parts of aqueous defoamer, 1-2 parts of aqueous wetting agent, aqueous levelling agent 1-2 parts, 0.5-2 parts of aqueous suspension agent, 2-3 parts of water-based thickener；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 60-90g macromolecule dihydric alcohols and 30-120g diisocyanate and 5-25g Organic fluoride modified graphene lists Body reacts 2-4 hours in 90-100 DEG C；
(2) 20-50g small molecule chain extenders and 8-20g hydrophilic chain extender I and 20-50g solvents are added and 0.1-0.5g is urged Agent, reacts 3-6 hours in 60-80 DEG C；
(3) 20-50g solvents and 5-15g hydrophilic chain extender II are added, is reacted 0.5-1 hours in 50-60 DEG C；
(4) add and 6-15g salt forming agents are added under 50-100g solvents, high speed shear, stirring adds 300- after 1-5 minutes 800g water high speed dispersion and emulsions, then add 2-5 times of water-reducible 10-30g rear chain extender, at a high speed after scattered 30-60 minutes Desolvation obtains aqueous polyurethane under vacuum.
Wherein it is preferred to, the macromolecule dihydric alcohol is phthalic anhydride polyester diol, PCDL, polycaprolactone Any one or a few in dihydric alcohol, end hydroxy butadiene dihydric alcohol, PolyTHF dihydric alcohol, the macromolecular binary The molecular weight of alcohol is 1000-4000.
Wherein it is preferred to, the diisocyanate is toluene di-isocyanate(TDI), IPDI, 1,6- six Methylene diisocyanate, 4,4`- methyl diphenylene diisocyanates or 4,4'- dicyclohexyl methyl hydride diisocyanate.
Wherein it is preferred to, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduction graphite What the amino on alkene surface was condensed to yield.
Wherein it is preferred to, the small molecule chain extender is 1,6 cyclohexanedimethanols, 1,6- hexylene glycols or isobide.It is described Hydrophilic chain extender I is one kind in dihydromethyl propionic acid or dimethylolpropionic acid.
Wherein it is preferred to, the solvent is acetone or butanone.
Wherein it is preferred to, the catalyst is stannous octoate, tin dilaurate normal-butyl tin, organic Bi salt catalysts, organic Any one or a few in Zn salt catalysts；
Wherein it is preferred to, the hydrophilic chain extender II is ethylenediamine base Sulfonic Lithium, and the salt forming agent is triethylamine, hydrogen-oxygen Change sodium or potassium hydroxide, the rear chain extender can be IPD, ethylenediamine or 1,6 hexamethylene diamines.
Wherein it is preferred to, the rare earth oxide is lanthana, and the aqueous dispersion is Sodium Polyacrylate；The water Property defoamer be polypropylene polyoxyethylene glycerol ether；The aqueous wetting agent is polyether siloxane copolymer or polysorbate 60； The aqueous levelling agent is organic silicon modified by polyether；The aqueous suspension agent is aqueous bentonite-thickener rheology agent；It is described aqueous Thickener is hydroxymethyl cellulose or xanthans.
A kind of preparation method of the aqueous polyurethane coating of anti-neutron irradiation, comprises the following steps：
(1) aqueous dispersion, aqueous defoamer, aqueous suspension agent are added in aqueous polyurethane emulsion, are uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) aqueous wetting agent, aqueous levelling agent and water-based thickener are added, vacuum defoamation is prevented after low speed is uniformly dispersed Neutron irradiation aqueous polyurethane coating.
Beneficial effects of the present invention：
1. aqueous polyurethane prepared by the present invention has excellent mechanical performance and adhesive property, can be with the addition of vast scale The inorganic filler of anti-neutron irradiation.
2. aqueous polyurethane coating prepared by the present invention all there is selectively masking and decay to make fast neutron, slow neutron With so as to reach full protection.
3. aqueous polyurethane prepared by the present invention has excellent antiseptic property, available for extreme environment.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention Embodiment, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
Embodiment 1
The present embodiment provides a kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：It is aqueous 40 parts of polyaminoester emulsion, 5 parts of graphene, 15 parts of lanthana, 15 parts of boron carbide, 8 parts of nano aluminium oxide emulsion, Sodium Polyacrylate 1.5 parts, 1.5 parts of polypropylene polyoxyethylene glycerol ether, 1.5 parts of polyether siloxane copolymer, 1.5 parts of organic silicon modified by polyether, water 1.0 parts of bentonite-thickener rheology agent of property, 2.5 parts of xanthans；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 80g phthalic anhydrides polyester diol and 75g toluene di-isocyanate(TDI)s and 15g Organic fluoride modified graphite alkene monomers Reacted 3 hours in 90-100 DEG C；
(2) cyclohexanedimethanols of 35g 1,6 and 15g dihydromethyl propionic acids and 35g acetone are added and the organic Bi salt of 0.3g is urged Agent, reacts 4.5 hours in 60-80 DEG C；
(3) 35g acetone and 10g ethylenediamine base Sulfonic Lithiums are added, is reacted 0.5 hour in 55 DEG C；
(4) add and 10g sodium hydroxides are added under 75g acetone, high speed shear, stirring adds 500g water high speed point after 3 minutes Emulsification is dissipated, 3 times of water-reducible 20g IPDs are then added, desolvation is obtained under vacuo after disperseing 45 minutes at a high speed Obtain aqueous polyurethane.
Wherein, the molecular weight of the phthalic anhydride polyester diol is 2000.
Wherein, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduced graphene surface What amino was condensed to yield.
The preparation method of the aqueous polyurethane coating of the anti-neutron irradiation of the present embodiment, comprises the following steps：
(1) Sodium Polyacrylate, polypropylene polyoxyethylene glycerol ether, aqueous bentonite-thickener rheology agent are added to aqueous In polyaminoester emulsion, it is uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) polyether siloxane copolymer, organic silicon modified by polyether and xanthans, vacuum defoamation after low speed is uniformly dispersed are added Obtain anti-neutron irradiation aqueous polyurethane coating.
Embodiment 2
The present embodiment provides a kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：It is aqueous 30 parts of polyaminoester emulsion, 10 parts of graphene, 10 parts of lanthana, 20 parts of boron carbide, 5 parts of nano aluminium oxide emulsion, Sodium Polyacrylate 2 Part, 1 part of polypropylene polyoxyethylene glycerol ether, 2 parts of polyether siloxane copolymer, 1 part of organic silicon modified by polyether, aqueous bentonite- 2 parts of thickener rheology agent, 2 parts of xanthans；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 60g PCDLs and 120g IPDIs and 5g Organic fluoride modified graphenes Monomer reacts 4 hours in 90-100 DEG C；
(2) 20g 1,6- hexylene glycols and 20g dihydromethyl propionic acids and 20g acetone and 0.5g stannous octoates are added, in 60- 80 DEG C are reacted 3 hours；
(3) 20g acetone and 15g ethylenediamine base Sulfonic Lithiums are added, is reacted 0.5 hour in 50-60 DEG C；
(4) add and 6g triethylamines are added under 100g acetone, high speed shear, it is scattered at a high speed that stirring adds 300g water after 5 minutes Emulsification, then adds 5 times of water-reducible 10g IPDs, desolvation is obtained under vacuo after disperseing 60 minutes at a high speed Aqueous polyurethane.
Wherein, the molecular weight of the PCDL is 1000.
Wherein, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduced graphene surface What amino was condensed to yield.
The preparation method of the aqueous polyurethane coating of the anti-neutron irradiation of the present embodiment, comprises the following steps：
(1) Sodium Polyacrylate, polypropylene polyoxyethylene glycerol ether, aqueous bentonite-thickener rheology agent are added to aqueous In polyaminoester emulsion, it is uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) polyether siloxane copolymer, organic silicon modified by polyether and xanthans, vacuum defoamation after low speed is uniformly dispersed are added Obtain anti-neutron irradiation aqueous polyurethane coating.
Embodiment 3
The present embodiment provides a kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：It is aqueous 50 parts of polyaminoester emulsion, 3 parts of graphene, 20 parts of lanthana, 10 parts of boron carbide, 10 parts of nano aluminium oxide emulsion, Sodium Polyacrylate 1 Part, 2 parts of polypropylene polyoxyethylene glycerol ether, 1 part of polyether siloxane copolymer, 2 parts of organic silicon modified by polyether, aqueous bentonite- 0.5 part of thickener rheology agent, 3 parts of xanthans；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 90g polycaprolactone diolss and the organic fluorine richness stone of 30g1,6- hexamethylene diisocyanates and 25g Black alkene monomer reacts 2 hours in 90-100 DEG C；
(2) 50g isobides and 8g dihydromethyl propionic acids and 50g acetone and 0.1g tin dilaurate normal-butyl tin are added, Reacted 6 hours in 60-80 DEG C；
(3) 20g acetone and 15g ethylenediamine base Sulfonic Lithiums are added, is reacted 0.5 hour in 50-60 DEG C；
(4) add and 15g sodium hydroxides are added under 50g acetone, high speed shear, stirring adds 800g water high speed point after 1 minute Emulsification is dissipated, 2 times of water-reducible 10g ethylenediamines are then added, desolvation obtains aqueous under vacuo after disperseing 30 minutes at a high speed Polyurethane.
Wherein, the molecular weight of the polycaprolactone diols is 4000.
Wherein, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduced graphene surface What amino was condensed to yield.
The preparation method of the aqueous polyurethane coating of the anti-neutron irradiation of the present embodiment, comprises the following steps：
(1) Sodium Polyacrylate, polypropylene polyoxyethylene glycerol ether, aqueous bentonite-thickener rheology agent are added to aqueous In polyaminoester emulsion, it is uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) polyether siloxane copolymer, organic silicon modified by polyether and xanthans, vacuum defoamation after low speed is uniformly dispersed are added Obtain anti-neutron irradiation aqueous polyurethane coating.
Embodiment 4
The present embodiment provides a kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：It is aqueous 35 parts of polyaminoester emulsion, 8 parts of graphene, 12 parts of lanthana, 18 parts of boron carbide, 6 parts of nano aluminium oxide emulsion, Sodium Polyacrylate 1.5 parts, 1.5 parts of polypropylene polyoxyethylene glycerol ether, 1.5 parts of polyether siloxane copolymer, 1.5 parts of organic silicon modified by polyether, water 1.2 parts of bentonite-thickener rheology agent of property, 2.5 parts of hydroxymethyl cellulose；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 70g hydroxyl polybutadiene dihydric alcohols and 80g4,4`- methyl diphenylene diisocyanate and 20g Organic fluorides Modified graphite alkene monomer reacts 3 hours in 90-100 DEG C；
(2) 40g isobides and 12g dimethylolpropionic acids and 40g butanone and 0.2g machine Zn salt catalysts are added, in 60-80 DEG C is reacted 5 hours；
(3) 40g butanone and 12g ethylenediamine base Sulfonic Lithiums are added, is reacted 1 hour in 50-60 DEG C；
(4) add and 12g potassium hydroxide is added under 90g butanone, high speed shear, stirring adds 700g water high speed point after 3 minutes Emulsification is dissipated, 4 times of water-reducible 12g ethylenediamines are then added, desolvation obtains aqueous under vacuo after disperseing 50 minutes at a high speed Polyurethane.
Wherein, the molecular weight of the end hydroxy butadiene dihydric alcohol is 3000.
Wherein, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduced graphene surface What amino was condensed to yield.
The preparation method of the aqueous polyurethane coating of the anti-neutron irradiation of the present embodiment, comprises the following steps：
(1) Sodium Polyacrylate, polypropylene polyoxyethylene glycerol ether, aqueous bentonite-thickener rheology agent are added to aqueous In polyaminoester emulsion, it is uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) polyether siloxane copolymer, organic silicon modified by polyether and hydroxymethyl cellulose are added, low speed is true after being uniformly dispersed Empty deaeration obtains anti-neutron irradiation aqueous polyurethane coating.
Embodiment 5
The present embodiment provides a kind of aqueous polyurethane coating of anti-neutron irradiation, includes the component of following parts by weight：It is aqueous 45 parts of polyaminoester emulsion, 4 parts of graphene, 18 parts of lanthana, 12 parts of boron carbide, 8 parts of nano aluminium oxide emulsion, Sodium Polyacrylate 1.5 parts, 1.5 parts of polypropylene polyoxyethylene glycerol ether, 1.5 parts of polysorbate 60,1.5 parts of organic silicon modified by polyether, aqueous swelling 1.5 parts of soil-thickener rheology agent, 2.5 parts of hydroxymethyl cellulose；
The preparation method of the aqueous polyurethane emulsion of the anti-neutron irradiation, comprises the following steps：
(1) it is 30g PolyTHFs dihydric alcohol, 40g phthalic anhydrides polyester diol, 70g 4,4'- dicyclohexyl methyl hydrides two is different Cyanate and 20g Organic fluoride modified graphite alkene monomers react 3 hours in 90-100 DEG C；
(2) cyclohexanedimethanols of 25g 1,6 and 18g dimethylolpropionic acids and 40g butanone are added and the organic Bi salt of 0.2g is urged The organic Zn salt catalysts of agent, 0.2g, react 4 hours in 60-80 DEG C；
(3) 35g butanone and 12g ethylenediamine base Sulfonic Lithiums are added, is reacted 1 hour in 50-60 DEG C；
(4) add and 9g potassium hydroxide is added under 90g butanone, high speed shear, it is scattered at a high speed that stirring adds 400g water after 3 minutes Emulsify, then 3 times of water-reducible 20g 1 of addition, 6- ethylenediamines, desolvation obtains water under vacuo after disperseing 45 minutes at a high speed Property polyurethane.
Wherein, the phthalic anhydride polyester diol molecular weight 2500, the molecular weight of the PolyTHF dihydric alcohol is 2000.
Wherein, the Organic fluoride modified graphite alkene monomer is using the organic fluorine molecule of end carboxyl and reduced graphene surface What amino was condensed to yield.
The preparation method of the aqueous polyurethane coating of the anti-neutron irradiation of the present embodiment, comprises the following steps：
(1) Sodium Polyacrylate, polypropylene polyoxyethylene glycerol ether, aqueous bentonite-thickener rheology agent are added to aqueous In polyaminoester emulsion, it is uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) polysorbate 60, organic silicon modified by polyether and hydroxymethyl cellulose, vacuum defoamation after low speed is uniformly dispersed are added Obtain anti-neutron irradiation aqueous polyurethane coating.
Performance test：
Performance test is carried out to the aqueous polyurethane emulsion of anti-neutron irradiation made from embodiment 1~5, it is as a result as follows：
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (10)

1. a kind of aqueous polyurethane coating of anti-neutron irradiation, it is characterised in that include the component of following parts by weight：Aqueous poly- ammonia 30-50 parts of ester emulsion, 3-10 parts of graphene, 10-20 parts of rare earth oxide, 10-20 parts of boron carbide, nano aluminium oxide emulsion 5-10 Part, 1-2 parts of aqueous dispersion, 1-2 parts of aqueous defoamer, 1-2 parts of aqueous wetting agent, 1-2 parts of aqueous levelling agent, aqueous suspension agent 0.5-2 parts, 2-3 parts of water-based thickener；
The preparation method of the aqueous polyurethane emulsion, comprises the following steps：
(1) by 60-90g macromolecule dihydric alcohols and 30-120g diisocyanate and 5-25g Organic fluoride modified graphite alkene monomers in 90-100 DEG C is reacted 2-4 hours；
(2) 20-50g small molecule chain extenders and 8-20g hydrophilic chain extender I and 20-50g solvents and 0.1-0.5g catalysis are added Agent, reacts 3-6 hours in 60-80 DEG C；
(3) 20-50g solvents and 5-15g hydrophilic chain extender II are added, is reacted 0.5-1 hours in 50-60 DEG C；
(4) add and 6-15g salt forming agents are added under 50-100g solvents, high speed shear, stirring adds 300-800g water after 1-5 minutes High speed dispersion and emulsion, then adds 2-5 times of water-reducible 10-30g rear chain extender, after disperseing 30-60 minutes at a high speed under vacuo Desolvation obtains aqueous polyurethane.
2. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The macromolecular Dihydric alcohol is phthalic anhydride polyester diol, PCDL, polycaprolactone diols, end hydroxy butadiene dihydric alcohol, poly- Any one or a few in tetrahydrofuran dihydric alcohol, the molecular weight of the macromolecule dihydric alcohol is 1000-4000.
3. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：Two isocyanide Acid esters is toluene di-isocyanate(TDI), IPDI, 1,6- hexamethylene diisocyanates, 4,4`- diphenylmethyls Alkane diisocyanate or 4,4'- dicyclohexyl methyl hydride diisocyanates.
4. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The Organic fluoride Modified graphite alkene monomer is condensed to yield using the organic fluorine molecule of end carboxyl and the amino on reduced graphene surface.
5. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The small molecule Chain extender is 1,6 cyclohexanedimethanols, 1,6-HD or isobide；The hydrophilic chain extender I is dihydromethyl propionic acid or two One kind in hydroxymethylbutyrate.
6. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The solvent is Acetone or butanone.
7. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The catalyst For any one or a few in stannous octoate, tin dilaurate normal-butyl tin, organic Bi salt catalysts, organic Zn salt catalysts.
8. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The hydrophilic expansion Chain agent II is ethylenediamine base Sulfonic Lithium, and the salt forming agent is triethylamine, sodium hydroxide or potassium hydroxide；The rear chain extender can be with It is IPD, ethylenediamine or 1,6 hexamethylene diamines.
9. a kind of aqueous polyurethane coating of anti-neutron irradiation according to claim 1, it is characterised in that：The rare earth oxygen Compound is lanthana；The aqueous dispersion is Sodium Polyacrylate；The aqueous defoamer is polypropylene polyoxyethylene glycerol ether； The aqueous wetting agent is polyether siloxane copolymer or polysorbate 60；The aqueous levelling agent is organic silicon modified by polyether； The aqueous suspension agent is aqueous bentonite-thickener rheology agent；The water-based thickener is hydroxymethyl cellulose or xanthans.
10. a kind of preparation method of the aqueous polyurethane coating of the anti-neutron irradiation described in claim 1, it is characterised in that including Following steps：
(1) aqueous dispersion, aqueous defoamer, aqueous suspension agent are added in aqueous polyurethane emulsion, are uniformly dispersed；
(2) graphene, rare earth oxide, boron carbide, nano aluminium oxide emulsion are added, ball milling disperses；
(3) aqueous wetting agent, aqueous levelling agent and water-based thickener are added, vacuum defoamation obtains anti-neutron after low speed is uniformly dispersed Radiate aqueous polyurethane coating.
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CN108300239A (en) * 2018-03-02 2018-07-20 山东七维新材料有限公司 A kind of aqueous radiation resistant paint and preparation method thereof
CN108341920A (en) * 2018-02-06 2018-07-31 湖南工业大学 A kind of high intensity water dispersible rare earth fluoride up-conversion luminescent material and preparation method thereof
CN113584899A (en) * 2021-07-19 2021-11-02 安徽财纳伽善科技有限公司 Superconducting shielding paint for preventing electronic wave camouflage net

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CN102030938A (en) * 2010-10-27 2011-04-27 李勇 Foamed neutron absorber material
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CN101787242A (en) * 2010-01-19 2010-07-28 华南师范大学 Wear-resistant waterborne two-component polyurethane coating and preparation method thereof
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CN102157214A (en) * 2010-12-02 2011-08-17 卜庆革 Silver-plated cloth with rare earth-shielding composite layer, preparation method thereof and clothes made of same
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