CN104725981B - A kind of solvent borne epoxy corrosion inhibition coating and preparation method thereof - Google Patents
A kind of solvent borne epoxy corrosion inhibition coating and preparation method thereof Download PDFInfo
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- CN104725981B CN104725981B CN201510109264.5A CN201510109264A CN104725981B CN 104725981 B CN104725981 B CN 104725981B CN 201510109264 A CN201510109264 A CN 201510109264A CN 104725981 B CN104725981 B CN 104725981B
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- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 41
- 238000005260 corrosion Methods 0.000 title claims abstract description 34
- 230000007797 corrosion Effects 0.000 title claims abstract description 33
- 239000002904 solvent Substances 0.000 title claims abstract description 30
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 29
- 239000004593 Epoxy Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 38
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims abstract description 36
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003822 epoxy resin Substances 0.000 claims abstract description 24
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 24
- 239000013530 defoamer Substances 0.000 claims abstract description 20
- 229920006122 polyamide resin Polymers 0.000 claims abstract description 19
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 17
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims abstract description 14
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 13
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 12
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 17
- 238000013019 agitation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920006334 epoxy coating Polymers 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- JUMYIBMBTDDLNG-OJERSXHUSA-N hydron;methyl (2r)-2-phenyl-2-[(2r)-piperidin-2-yl]acetate;chloride Chemical compound Cl.C([C@@H]1[C@H](C(=O)OC)C=2C=CC=CC=2)CCCN1 JUMYIBMBTDDLNG-OJERSXHUSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229940099204 ritalin Drugs 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The invention discloses a kind of solvent type epoxy corrosion inhibition coating, it comprises the component of following parts by weight: the N-BUTYL ACETATE of the epoxy resin of 40 ~ 50 parts, the polyamide resin of 40 ~ 50 parts, the titanium dioxide of 10 ~ 15 parts, the talcum powder of 15 ~ 25 parts, the inhibiter of 5 ~ 10 parts, the defoamer of 0.1 ~ 0.2 part, the flow agent of 0.5 ~ 1.0 part, the propyl carbinol of 5 ~ 10 parts and 10 ~ 10 parts, wherein, the inhibiter of employing is any one or a few the mixture in morpholine, pyridine and urotropine.The coating that the present invention obtains has excellent weathering and chemical resistant properties, high gloss, wear resistance, and solvent for use is green solvent, and volatility is moderate, not only can be adapted to the anticorrosion of metallic surface, also be applicable to interior decoration, non-volatility poisonous gas, belong to the scope of environment-friendly type coating.
Description
Technical field
The present invention relates to technical field of coatings, relate to a kind of corrosion inhibition coating particularly, relate to a kind of solvent borne epoxy corrosion inhibition coating more specifically.
Background technology
Corrosion of metal brings huge loss to national economy, one of method that hardware protection against corrosion is effective, the most the most frequently used is that therefore anticorrosive coating is very extensive in department's application such as modern industry, traffic, the energy, oceanographic engineerings at metallic surface coating erosion shield.What the erosion shield of current plain metal surface application often adopted is solvent based coating, but most of solvent-borne type corrosion inhibition coating all contains benzene homologues, as benzene, toluene, chloroform, dimethylbenzene etc., very large injury can be caused to environment and human body in the process of constructing and use.Along with people are day by day to the pursuit of environment-friendly type coating, exploitation does not become main flow containing the novel environment friendly coating of the objectionable impuritiess such as benzene homologues.Present stage solvent type epoxy coating to the anticorrosion ability of metal better, but anti-corrosion performance still needs further raising.
Summary of the invention
Goal of the invention: for solving problems of the prior art, the invention provides a kind of solvent borne epoxy corrosion inhibition coating and preparation method thereof, more helping the erosion rate that slows down by adding organic inhibitor in coating, extending the work-ing life of metal.
Technical scheme: for realizing above-mentioned technical purpose, the invention provides a kind of solvent borne epoxy corrosion inhibition coating, comprise the component of following parts by weight: the N-BUTYL ACETATE of the epoxy resin of 40 ~ 50 parts, the polyamide resin of 40 ~ 50 parts, the titanium dioxide of 10 ~ 15 parts, the talcum powder of 15 ~ 25 parts, the inhibiter of 5 ~ 10 parts, the defoamer of 0.1 ~ 0.2 part, the flow agent of 0.5 ~ 1.0 part, the propyl carbinol of 5 ~ 10 parts and 10 ~ 20 parts.
Preferably, described solvent borne epoxy corrosion inhibition coating comprises the component of following parts by weight: the N-BUTYL ACETATE of the epoxy resin of 45 parts, the polyamide resin of 45 parts, the titanium dioxide of 12 parts, the talcum powder of 18 parts, the inhibiter of 8 parts, the defoamer of 0.15 part, the flow agent of 0.8 part, the propyl carbinol of 6 parts and 12 parts.
Preferably, described inhibiter is any one or a few the mixture in morpholine, pyridine and urotropine.
Preferably, described flow agent is butanols.
Described defoamer is S-910Q type defoamer.
Preferably, the weight ratio 1: 1.5 ~ 3 of propyl carbinol and ritalin coating.More preferably, the weight ratio 1: 2 of propyl carbinol and ritalin coating.
In this coating, titanium dioxide and talcous weight ratio are 2: 3, and the weight ratio of epoxy resin and polyamide resin is 1: 1.
Present invention further proposes the preparation method of above-mentioned solvent borne epoxy corrosion inhibition coating, comprise the steps:
(1) first pour in container by the propyl carbinol of formula ratio, the epoxy resin then taking formula ratio puts into container, stirs, dissolve completely to epoxy resin under the rotating speed of 45 ~ 50r/min;
(2) N-BUTYL ACETATE measuring formula ratio is poured in container, continues to stir;
(3) polyamide resin taking formula ratio joins in container, and Keep agitation is transparent to solution;
(4) take the defoamer of formula ratio, stir;
(5) titanium dioxide of formula ratio is joined in container, Keep agitation, dissolve completely to solid;
(6) inhibiter measuring formula ratio joins in container;
(7) taking formula ratio talcum powder joins in container, continues to be stirred to solid and dissolves completely;
(8) take the flow agent of formula ratio, continue to be stirred to dissolution homogeneity, obtain solvent borne epoxy corrosion inhibition coating
Beneficial effect: compared with prior art, the present invention is by selecting properly mixed epoxy resin, polyamide resin as filmogen, using propyl carbinol and N-BUTYL ACETATE as solvent, titanium dioxide and talcum powder are as auxiliary packing, and sustained release dosage is morpholine, pyridine, wherein one or more prepare corrosion inhibition coating to urotropine, the coating of preparation with the change of place, weather, can adapt to multiple construction environment, brushes two roads accessible; Have good corrosion resistance, corrosion resisting property keeps stable, and hardness is high; Be easy to keeping and transport, super quality and competitive price.
Embodiment
Embodiment 1: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes.
Concrete implementation step is as follows:
(1) take the container that deionized water washes, the propyl carbinol measuring 10ml is poured in container;
(2) epoxy resin taking 50g puts into container, stirs, dissolve completely to epoxy resin under the rotating speed of 45r/min;
(3) N-BUTYL ACETATE measuring 20ml is poured in container, continues to stir;
(4) polyamide resin taking 50g joins in container, and Keep agitation is transparent to solution;
(5) take the S-910Q type defoamer of 0.2g, stir;
(6) titanium dioxide taking 15g joins in container, and Keep agitation, dissolves completely to solid;
(7) the inhibiter urotropine measuring 10g joins in container;
(8) talcum powder taking 22.5g joins in container, continues to be stirred to solid and dissolves completely;
(9) take the flow agent butanols of 1.0g, continue to be stirred to dissolution homogeneity, can this product be prepared.
Embodiment 2: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 40g, the polyamide resin of 40g, 10g, the talcum powder of 15g, 5g, the S-910Q type defoamer of 0.1g, the butanols flow agent of 0.5g, the propyl carbinol of 5ml, the N-BUTYL ACETATE of 10ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 3: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 45g, the polyamide resin of 45g, 12g, the talcum powder of 18g, 8g, the S-910Q type defoamer of 0.15g, the butanols flow agent of 0.8g, the propyl carbinol of 8ml, the N-BUTYL ACETATE of 16ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 4: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 48g, the polyamide resin of 48g, 14g, the talcum powder of 21g, 9g, the S-910Q type defoamer of 0.2g, the butanols flow agent of 1.0g, the propyl carbinol of 10ml, the N-BUTYL ACETATE of 20ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 5: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 46g, the polyamide resin of 46g, 14g, the talcum powder of 21g, 10g, the S-910Q type defoamer of 0.1g, the butanols flow agent of 1.0g, the propyl carbinol of 9ml, the N-BUTYL ACETATE of 18ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 6: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 46g, the polyamide resin of 46g, 14g, the talcum powder of 21g, 5g and the morpholine of 5g, the S-910Q type defoamer of 0.1g, the butanols flow agent of 1.0g, the propyl carbinol of 9ml, the N-BUTYL ACETATE of 18ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 7: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 48g, the polyamide resin of 48g, 14g, the talcum powder of 21g, 7g and the morpholine of 3g, the S-910Q type defoamer of 0.2g, the butanols flow agent of 1.0g, the propyl carbinol of 8ml, the N-BUTYL ACETATE of 16ml.
Then according to method preparation prepared by embodiment 1.
Embodiment 8: the preparation of solvent borne epoxy corrosion inhibition coating.
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the inhibiter urotropine of the titanium dioxide of the epoxy resin of 48g, the polyamide resin of 48g, 14g, the talcum powder of 21g, 6g and the pyridine of 4g, the S-910Q type defoamer of 0.2g, the butanols flow agent of 1.0g, the propyl carbinol of 8ml, the N-BUTYL ACETATE of 16ml.
Then according to method preparation prepared by embodiment 1.
Comparative example 1:
Guarantee output zone and equipment clean and dry, material-compound tank is cleaned up and sterilizes, and whole valve closes, stirrer stirring velocity is 45r/min.
Formula is: the S-910Q type defoamer of the titanium dioxide of the epoxy resin of 46g, the polyamide resin of 46g, 14g, the talcum powder of 21g, 0.1g, the butanols flow agent of 1.0g, the propyl carbinol of 9ml, the N-BUTYL ACETATE of 18ml, do not add any kind of inhibiter.
Then according to method preparation prepared by embodiment 1.The traditional performance test chart that comparative example 1 does not add the aqueous epoxy coating prepared by inhibiter is as shown in table 1.
Table 1
Formula and the performance test results of embodiment 1 ~ 8 and the inhibition aqueous epoxy coating prepared by comparative example 1 are as shown in table 2.
This product embodiments of table 2 and comparative example Data Comparison
The research of above-mentioned embodiment and contrast embodiment shows, described corrosion inhibition type epoxy resin, by adding adding of inhibiter morpholine, urotropine and pyridine, improve the time extending the oxidized corrosion of solvent based coating greatly, especially the mixing application of two kinds of inhibiter, contrast does not add inhibiter and adds a kind of example of inhibiter, and the ability of its antioxidant anticorrosive is strengthened greatly, extends the erosion-resisting time greatly.
In sum, the epoxypaint obtained according to this product embodiments has higher hardness and time of drying faster, and inhibited from yellowing under uviolizing, pulverize; Meanwhile, less according to the smell of the epoxide resin material of this product embodiments gained, without toxic volatilization gas, safety and environmental protection.This product not only can apply the surface protection with metallic substance, also can as indoor interior wall coating.
The explanation of above embodiment just understands method of the present invention and core concept for helping.For member of ordinary skill in the art, under the premise of not departing from the present invention, can carry out some improvement and modification to the present invention, these improve and modify the protection domain also falling into the claims in the present invention.The present invention can not be limited only within these embodiments as herein described, but will meet the consistent most wide region of principle features shown in this article.
Claims (6)
1. a solvent borne epoxy corrosion inhibition coating, it is characterized in that, comprise the component of following parts by weight: the N-BUTYL ACETATE of the epoxy resin of 40 ~ 50 parts, the polyamide resin of 40 ~ 50 parts, the titanium dioxide of 10 ~ 15 parts, the talcum powder of 15 ~ 25 parts, the inhibiter of 5 ~ 10 parts, the defoamer of 0.1 ~ 0.2 part, the flow agent of 0.5 ~ 1.0 part, the propyl carbinol of 5 ~ 10 parts and 10 ~ 20 parts, the weight ratio 1: 1.5 ~ 3 of propyl carbinol and N-BUTYL ACETATE; Titanium dioxide and talcous weight ratio are 2: 3; The weight ratio of epoxy resin and polyamide resin is 1: 1.
2. solvent type epoxy corrosion inhibition coating according to claim 1, it is characterized in that, comprise the component of following parts by weight: the N-BUTYL ACETATE of the epoxy resin of 45 parts, the polyamide resin of 45 parts, the titanium dioxide of 12 parts, the talcum powder of 18 parts, the inhibiter of 8 parts, the defoamer of 0.15 part, the flow agent of 0.8 part, the propyl carbinol of 6 parts and 12 parts.
3. solvent borne epoxy corrosion inhibition coating according to claim 1 and 2, is characterized in that, described inhibiter is any one or a few the mixture in morpholine, pyridine and urotropine.
4. solvent type epoxy corrosion inhibition coating according to claim 1 and 2, is characterized in that, described flow agent is butanols.
5. solvent type epoxy corrosion inhibition coating according to claim 1 and 2, is characterized in that, described defoamer is S-910Q type defoamer.
6. the preparation method of solvent borne epoxy corrosion inhibition coating according to claim 1, is characterized in that, comprise the steps:
(1) first pour in container by the propyl carbinol of formula ratio, the epoxy resin then taking formula ratio puts into container, stirs, dissolve completely to epoxy resin under the rotating speed of 45 ~ 50r/min;
(2) N-BUTYL ACETATE measuring formula ratio is poured in container, continues to stir;
(3) polyamide resin taking formula ratio joins in container, and Keep agitation is transparent to solution;
(4) take the defoamer of formula ratio, stir;
(5) titanium dioxide of formula ratio is joined in container, Keep agitation, dissolve completely to solid;
(6) inhibiter measuring formula ratio joins in container;
(7) taking formula ratio talcum powder joins in container, continues to be stirred to solid and dissolves completely;
(8) take the flow agent of formula ratio, continue to be stirred to dissolution homogeneity, obtain solvent borne epoxy corrosion inhibition coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510109264.5A CN104725981B (en) | 2015-03-12 | 2015-03-12 | A kind of solvent borne epoxy corrosion inhibition coating and preparation method thereof |
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| CN201510109264.5A CN104725981B (en) | 2015-03-12 | 2015-03-12 | A kind of solvent borne epoxy corrosion inhibition coating and preparation method thereof |
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| CN104725981A CN104725981A (en) | 2015-06-24 |
| CN104725981B true CN104725981B (en) | 2016-02-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105802298A (en) * | 2016-04-22 | 2016-07-27 | 刘高志 | Corrosion inhibition coating and preparation method thereof |
| CN105694676A (en) * | 2016-04-23 | 2016-06-22 | 徐挺 | Paint for delaying metal corrosion and preparing method of paint |
| CN106752668A (en) * | 2016-05-31 | 2017-05-31 | 徐挺 | A kind of corrosion inhibition coating and preparation method thereof |
| CN106189714A (en) * | 2016-08-25 | 2016-12-07 | 太仓卡斯特姆新材料有限公司 | A kind of anti-corrosive antirusting paint for boats and ships and preparation method thereof |
| CN112625542A (en) * | 2020-12-10 | 2021-04-09 | 扬州郎康汽车水性涂料有限公司 | Water-based epoxy coating and preparation method thereof |
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Effective date of registration: 20191118 Address after: 213100 Dong'an Industrial Park (Anxi Village), Huangli Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Fengdi paint Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: Jiangsu University of Science and Technology |
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Granted publication date: 20160217 |