CN1044612C - Paint capable of removing radioactive pollution by stripping - Google Patents
Paint capable of removing radioactive pollution by stripping Download PDFInfo
- Publication number
- CN1044612C CN1044612C CN95103656A CN95103656A CN1044612C CN 1044612 C CN1044612 C CN 1044612C CN 95103656 A CN95103656 A CN 95103656A CN 95103656 A CN95103656 A CN 95103656A CN 1044612 C CN1044612 C CN 1044612C
- Authority
- CN
- China
- Prior art keywords
- polyvinyl alcohol
- restrains
- grams
- coating
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003973 paint Substances 0.000 title abstract description 6
- 238000003904 radioactive pollution Methods 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 30
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 14
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 14
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000000049 pigment Substances 0.000 claims abstract description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000005202 decontamination Methods 0.000 claims description 10
- 230000003588 decontaminative effect Effects 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- -1 polyethylene vinyl acetate Polymers 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical group [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 229920000136 polysorbate Polymers 0.000 claims description 4
- 230000002285 radioactive effect Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 2
- 239000008157 edible vegetable oil Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The present invention relates to strippable paint capable of removing radioactive pollution. The strippable paint is prepared by proportionally mixing two kinds of high molecular materials which are butyraldehyde modified polyvinyl alcohol and polyethylene-vinyl acetate as main components with a decontaminating agent, a lubricating agent, pigments, a surface active agent, filling materials, a solvent, etc. The paint can be coated by various methods, and a coating film has the functions of resisting water, weak acid and weak alkali and also has high tensile strength for complete stripping. The strippable paint has the advantage of high pollution removing effect, and can be used for civil use and various facilities and places in general industry and nuclear industry.
Description
The present invention relates to a kind of coating that is used to remove nuclear pollution, belong to the chemical coating technical field.
During the nuclear installation operation, can pollute more or less inevitably.To surfaces such as contaminated facility, equipment, places, all pollution accumulations are handled to a certain degree carrying out decontamination.Usually detergency processing method has; Mechanical means is as rejecting friction removal etc.; Water law, as with acidity or basic solution, or the aqueous solution that contains stain remover, tensio-active agent soaks, and cleans, even uses high pressure water washing; Solvent method cleans with organic solvent; Certainly, also can utilize the coating of strippability.Will produce bigger secondary pollution with first three methods, as wider pollution dust, more pollutant effluents, waste liquid will be so will bring bigger workload to go to handle this secondary pollution.And utilize its dry film to have the coating of peelable high-performance radioactive decontamination, be coated on contaminated surface, treat the short period of time seasoning after, will film divests, and its surface contamination is reduced, and reaches the purpose of decontamination.Filming of staiing can be through simple burning disposal, and level of residue is few, and the refuse amount is few, and secondary pollution is few, thus says on the whole economize the energy, save time, saving of labor, material-saving, be particularly useful for the occasion of some other decontamination methods inconvenience enforcements.Owing to use it to have high economic benefit, thereby come into one's own recently.
Remove in order to make the surface contamination capacity, done more comprehensive commentary in the eighties abroad, at document RFP-2929, AECP1002, proposed rule of handling and the material that may adopt among the 1057R AERE and 11054, but with which kind of concrete material and production technique do not appeared in the newspapers actually.
The product A lara of U.S. Amercoat company, its component is water base vinyl polymer coating, its soil removal efficiency is right
239Pu is 63%.But coating composition and preparation technology that it is detailed do not see open report.
The objective of the invention is to prepare the coating of the dirty material of a kind of peelable removing radioactive, with two kinds of macromolecular materials is matrix, is aided with stain remover, sequestrant, lubrication prescription, solvent etc., makes its soil removal efficiency height, the decontamination film that divests is easily handled, and can be widely used in various material, multiple facility.
The peelable radioactive decontamination coating of the present invention's preparation is made up of A, B two class materials and auxiliary material.The A material is the polyethylene vinyl acetate emulsion, and therein ethylene is 1: 4～6 with the ratio of vinyl acetate between to for plastic two group weight; The B material is the water-base emulsion that T aldehyde modified polyvinyl alcohol is prepared into; The phase mixing ratio of A, two kinds of materials of B is: A: B=0～0.3: 1～0.7; Two kinds of materials of A, B are mixed mutually and close, and add auxiliary material, and supplementary product consumption (total amount in A+B is 100 grams) is:
1. disodium ethylene diamine tetraacetate (is EDTA-
Na
2) 0.35～1.0 gram
2. lubrication prescription, for edible oil or machine with in the oil
Any 2.1～4.0 the gram
3. filler is in kaolin, the potter's clay
Any 2.1～4.0 grams
4. pigment 0～7.0 restrains
5. anion surfactant 0.84～1.5 restrains
6. nonionogenic tenside 2.1～3.5 restrains
7. ethanol 3.6～15 restrains
8. water 17.5～30 restrains
Above-mentioned B material is that the preparation technology of butyraldehyde modified polyvinyl alcohol water-base emulsion is:
(1) be properties-correcting agent with the butanols, in the aqueous solution polyvinyl alcohol (concentration is 10～20%) carried out modified-reaction, the ratio of butyraldehyde and polyvinyl alcohol is 15-30% for making its modification degree;
(2) with acid be catalyzer, reacted 10～20 hours down, reacted 0.5～2.0 hour down at 50～55 ℃ then, fully stir during reaction at 10 ℃～35 ℃;
(3) reaction finishes, and the pH value of above-mentioned solution is transferred to 4～8, and this is butyraldehyde modified polyvinyl alcohol water material.
In the preparation process of above-mentioned B material, be any in hydrochloric acid, sulfuric acid or the acetic acid as the acid of catalyzer.Anion surfactant as auxiliary material is sodium oleate or sodium stearate.Nonionogenic tenside as auxiliary material is: alkyl phenyl polyoxyethylene groups ether (OP) or tween (Tween).
This coating can adopt multiple coating method: brush, spray, roll etc. and coat various substrate surfaces, drying, it is filmed and has certain anti-water, anti-weak acid, weakly alkaline ability, has suitable stretching again and becomes so that more intactly peel off by force, and it has high clean effect: to α-nucleic
239The soil removal efficiency of Pu is greater than 90%.The decontamination film that divests only stays a spot of solid dirt through burning, and secondary pollution is few.Therefore, not only can be applicable to civilian, general industry, as for stainless steel, glass even cement surface, the decontamination on plastics and plain carbon stool surface more is applicable to the usefulness of depolluting in the multiple places such as facility of nuclear industry.
Exemplify embodiments of the invention below:
Embodiment 1:
Polyvinyl alcohol (PVA) 16 grams are put in three mouthfuls of round-bottomed flasks, added 110ml water, be heated to 80 ℃ of stirrings.Fully after the dissolving, be cooled to room temperature, add butyraldehyde 3.84ml, add HCl1.5ml, fully stir, reaction is 20 hours under room temperature (or＜30 ℃) condition, heats up 55 ℃ and reacts 2 hours again, the product of gained washed with water or alkali cleaning near neutral, must be about the wet thing of 110 grams is material B for the butyraldehyde modified polyvinyl alcohol.In the wet thing B of 100 grams, add EDTA-Na
21.0 gram, Viscotrol C 4.0 grams, kaolin 4.0 grams, iron oxide yellow 1.5 grams, sodium oleate 1.5 grams, the OP3.5 gram, 95% ethanol, 15 grams, water 30 grams are stirred to evenly, are coating.Do the decontamination experiment with this coating, for α-nucleic
239The soil removal efficiency of Pu can reach 96%.
Embodiment 2:
With PVA16.7 gram, press embodiment 1 and handle, but its difference is in adding 7.2 gram acetic acid and reacts, the product B of gained, the about 6ml of decantation reacts clear liquid and gets final product.Get this wet product 70 grams, add EDTA Na
20.35 gram, castor woods oil 2.1 grams, kaolin 2.1 grams, iron oxide yellow 4.0 grams, sodium oleate 0.64 gram, the OP2.1 gram, 95% ethanol, 3.6 grams add entry 17.5 grams, after stirring, add A material (buying from the shop) 30 grams, after fully stirring evenly, can use.Its soil removal efficiency can reach 94%.
Embodiment 3:
Press the synthetic B of embodiment 2, but add acetic acid 3.6 grams, after reaction is finished, do not wash with water or alkali cleaning, also decantation clear liquid not.These product weight in wet base 80 grams add EDTA-Na
20.4 gram, Viscotrol C 2.4 grams, kaolin 2.4 grams, iron oxide yellow 4.0 grams, sodium oleate 60 grams, the OP2.4 gram, 95% ethanol, 4.0 grams, water 20 grams add A material (buying from the shop) 20 grams again after fully stirring evenly, continue fully to stir evenly, and can use.Its soil removal efficiency can reach 98%.
Embodiment 4:
Press embodiment 1 synthetic B, but add 12M H
2SO
41.5ml replacement hydrochloric acid.When preparation coating, do not add iron oxide yellow, and water only adds 18 grams, its soil removal efficiency is 96%.
Claims (3)
1. the coating of a peelable radioactive decontamination is characterized in that this coating is made up of A, B two class materials and auxiliary material; The A material is the polyethylene vinyl acetate emulsion, and therein ethylene is 1: 4～6 with the ratio of vinyl acetate between to for plastic two group weight; The water-base emulsion that the B material is prepared into for the butyraldehyde modified polyvinyl alcohol; The phase mixing ratio of A, two kinds of materials of B is: A: B=0～0.3: 1～0.7; Two kinds of materials of A, B are mixed mutually and close, and add auxiliary material, and supplementary product consumption (total amount in A+B is 100 grams) is:
1. disodium ethylene diamine tetraacetate (is EDTA-
Na
2) 0.35～1.0 gram
2. lubrication prescription, for edible oil or machine with in the oil
Any 2.1～4.0 the gram
3. filler is in kaolin, the potter's clay
Any 2.1～4.0 grams
4. pigment 0～7.0 restrains
5. anion surfactant 0.84～1.5 restrains
6. nonionogenic tenside 2.1～3.5 restrains
7. ethanol 3.6～15 restrains
8. water 17.5～30 restrains
Above-mentioned anion surfactant is sodium oleate or sodium stearate, and above-mentioned nonionogenic tenside is: alkyl phenyl polyoxyethylene groups ether (OP) or tween (Tween).
2. coating as claimed in claim 1 is characterized in that the preparation technology of wherein said butyraldehyde modified polyvinyl alcohol water-base emulsion is:
(1) being properties-correcting agent with the butanols, is that 10～20% polyvinyl alcohol carries out modified-reaction to concentration in the aqueous solution, and the ratio of butyraldehyde and polyvinyl alcohol is that to make its modification degree be 15-30%;
(2) with acid be catalyzer, reacted 10～20 hours down, reacted 0.5～2.0 hour down at 50～55 ℃ then, fully stir during reaction at 10 ℃～35 ℃;
(3) reaction finishes, and the pH value of above-mentioned solution is transferred to 4～8, and this is butyraldehyde modified polyvinyl alcohol water material.
3. coating as claimed in claim 2 is characterized in that wherein acid as catalyzer is any in hydrochloric acid, sulfuric acid or the acetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103656A CN1044612C (en) | 1995-04-07 | 1995-04-07 | Paint capable of removing radioactive pollution by stripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103656A CN1044612C (en) | 1995-04-07 | 1995-04-07 | Paint capable of removing radioactive pollution by stripping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1111666A CN1111666A (en) | 1995-11-15 |
| CN1044612C true CN1044612C (en) | 1999-08-11 |
Family
ID=5074770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95103656A Expired - Fee Related CN1044612C (en) | 1995-04-07 | 1995-04-07 | Paint capable of removing radioactive pollution by stripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044612C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061070C (en) * | 1997-06-24 | 2001-01-24 | 中国原子能科学研究院 | Strippable radioactive contamination removing coating film |
| CN1073136C (en) * | 1998-03-05 | 2001-10-17 | 晏林宝 | Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof |
| CN102664053A (en) * | 2012-04-26 | 2012-09-12 | 广东白云国际科学研究院有限公司 | Electrolyte for radioactive contamination electrochemical cleaning |
| CN102690579B (en) * | 2012-06-18 | 2014-10-15 | 西南科技大学 | Reparation method of self-embrittled radioactive decontamination coating |
| CN102876155A (en) * | 2012-09-26 | 2013-01-16 | 苏州汾湖电梯有限公司 | Strippable anti-pollution coating for decorative layer of elevator and preparation method for strippable anti-pollution coating |
| CN103214903A (en) * | 2013-03-27 | 2013-07-24 | 北京鸿业润升科技有限公司 | Peelable nano-grade decontamination coating |
| CN108034324B (en) * | 2018-01-09 | 2020-03-10 | 中国工程物理研究院材料研究所 | Radioactive decontamination high-strength peelable film, and preparation method and application thereof |
| CN111303704B (en) * | 2020-04-08 | 2021-11-30 | 西南科技大学 | Preparation and use method of low-temperature sprayable strippable radioactive contamination decontaminant |
| CN111909558B (en) * | 2020-08-14 | 2022-09-16 | 西南科技大学 | Polyvinyl alcohol-based strippable membrane detergent and preparation method and use method thereof |
| CN111909559B (en) * | 2020-08-14 | 2022-05-10 | 西南科技大学 | Radioactive surface strippable detergent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1416180A (en) * | 1971-12-28 | 1975-12-03 | Kao Corp | Easily strippable coating composition for temporary surface protection |
| CN1065282A (en) * | 1992-01-18 | 1992-10-14 | 中国人民解放军驻太原地区军事代表室 | Protection method for prolonging storage period of antifouling paint layer in air and protective agent thereof |
| JPH0559310A (en) * | 1991-09-04 | 1993-03-09 | Denki Kagaku Kogyo Kk | Easily peelable paint composition |
| JPH05171069A (en) * | 1991-12-18 | 1993-07-09 | Denki Kagaku Kogyo Kk | Easily strippable coating composition |
-
1995
- 1995-04-07 CN CN95103656A patent/CN1044612C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1416180A (en) * | 1971-12-28 | 1975-12-03 | Kao Corp | Easily strippable coating composition for temporary surface protection |
| JPH0559310A (en) * | 1991-09-04 | 1993-03-09 | Denki Kagaku Kogyo Kk | Easily peelable paint composition |
| JPH05171069A (en) * | 1991-12-18 | 1993-07-09 | Denki Kagaku Kogyo Kk | Easily strippable coating composition |
| CN1065282A (en) * | 1992-01-18 | 1992-10-14 | 中国人民解放军驻太原地区军事代表室 | Protection method for prolonging storage period of antifouling paint layer in air and protective agent thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111666A (en) | 1995-11-15 |
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