CN103059695B - Long-acting corrosion-proof solvent-free nontoxic paint for fresh water tank of boat - Google Patents
Long-acting corrosion-proof solvent-free nontoxic paint for fresh water tank of boat Download PDFInfo
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- CN103059695B CN103059695B CN201310039117.6A CN201310039117A CN103059695B CN 103059695 B CN103059695 B CN 103059695B CN 201310039117 A CN201310039117 A CN 201310039117A CN 103059695 B CN103059695 B CN 103059695B
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Abstract
The invention discloses a long-acting corrosion-proof solvent-free nontoxic paint for a fresh water tank of a boat. The paint consists of epoxy resin, toughened resin, a modified aromatic amine curing agent, a color filler, a thixotropic agent and an additive, wherein the modified aromatic amine curing agent is obtained by bisphenol F type epoxy modified m-xylylenediamine. The paint is applicable to painting protection on the inner walls of a boat fresh water tank, a ballast tank, a water tank, a civic water pipe, a power plant sewage pool, a storage tank and a groove of food fermentation industries and the like.
Description
Technical field
The present invention relates to the coating manufacture in chemical industrial field, relate to a kind of manufacture method and the constructional method thereof with the solvent-free non-toxic long-acting protective system of boats and ships fresh-water tank of 15 years preservative effects.
Background technology
At present, domestic boats and ships fresh-water tank, large-scale splendid attire eat the protective coating of article (as tap water etc.) container inner wall, most employing be solvent-borne type, high solid pure epoxy coating, these coating production, in construction process often along with a large amount of solvent evaporates, this not only pollutes the environment, in production, construction process, need special skill security to protect; And the solvent in these coating can not absolutely vapor away, the paint film formed is " micro-poison " in fact, if crewman drink for a long time the water that contacts with this type of paint film can serious harm healthy.
Large ship requires that the work-ing life of fresh-water tank coating is more than 10 years, and used boats and ships fresh-water tank no-solvent type coating, be difficult to actual service life meet the needs that boats and ships develop particularly large ship development.
Summary of the invention
An object of the present invention is to provide a kind of boats and ships fresh-water tank non-toxic coatings, meets national drinking water related product hygienic standard and to require and the preservative effect with 15 years meets the needs of shipbuilding development now.
Two of the object of the invention is to provide a kind of curing agent.
Boats and ships fresh-water tank nonpoisonous anti-corrosive paint of the present invention is made up of A and B component, and the content of each component is as follows:
Component A is made up of following material:
B component is made up of following material:
Raw material weight number
Curing agent 15 ~ 22 weight part
Curing catalyst 3 ~ 10 weight part
The bisphenol A type epoxy resin that described epoxy resin is 0.48 ~ 0.54 by oxirane value is formed.This resin viscosity is little, and pole is suitable for preparation solventless coatings.Conventional commercially available prod is epoxy resin 618(blue star new chemical materials), R140(Mitsui chemistry), Epikote828(shell), DER331(Dow Chemical).
The active epoxy toughening resin of described toughened resin to be Ka Delai NC-513 be a kind of uniqueness, national sanitary foundation international (NSF) is approved.The each molecule of this low viscous liquid has an active epoxy-functional, thus it can be made to be entered in epoxy systems coating by the mode of chemical reaction.While maintenance coating performance, improve snappiness and reduce viscosity, improving the consistency of resin and solidifying agent.
Its molecular formula is:
Described component A, adds suitable color stuffing.Select titanium dioxide, process white, the talcum powder to human non-toxic, they can be that one or more are also used.According to the physical and mechanical properties of film, its total consumption is 100 parts by weight with component A weight, within the scope of 40 ~ 50 weight parts.
Described thixotropic agent is aerosil, because solventless coatings viscosity is comparatively large by the impact of temperature, carrys out the thixotropic effects of adjusting coating, can improve anti-settling, the sag prevention effect of coating simultaneously by adding aerosil.Consumption is 100 parts by weight with component A weight, is 0.5 ~ 3 weight part.
Described auxiliary agent comprises defoamer, wetting dispersing agent, flow agent.
Because solventless coatings viscosity is comparatively large, easily produces bubble in agitation, and not easily eliminate, need to add suitable defoamer to eliminate the bubble of paint film generation.By a large amount of tests we select AFCONA2723 and AFCONA2020 two kinds of defoamers according to 4: 1 weight ratios with the use of, best defoaming effect can be obtained; According to the dispersion of solventless coatings difficulty, the feature being not easy levelling, wetting dispersing agent selects BYK-P104S or AFCONA5065, and flow agent selects AFCONA3700.The total consumption of auxiliary agent is 100 parts by weight with component A weight, should rest within the scope of 2 ~ 5.5 weight parts.
The preparation technology of described curing agent is as follows: mixed with ethanol 10 weight part by bisphenol F type epoxy YDF-17035 weight part.Again m-xylene diamine 60 weight part, silane coupling agent KH5605 weight part are joined in reactor, be warming up to 80 DEG C, slowly drip the mixed solution of bisphenol F type epoxy YDF-170 and ethanol while stirring, 2 hours are reacted while stirring under 80 DEG C of insulations, adopt the mode of air distillation to be fallen by the ethanol distillation not participating in reaction, obtain the curing agent of light yellow clear liquid state.Obtain curing agent and not only can improve the cross-linking density with epoxy resin, strengthen the medium-resistance of coating; The snappiness of epoxy coat can also be improved.Obtaining modified aromatic amine molecule formula is:
Described solidifying agent altax P-30 is commercially available prod, and this product adds appropriate low-molecular-weight epoxy resin modification by two aminodiphenylmethane (DDM) to make.Modified aromatic race solidifying agent does not substantially have unhindered amina and separates out, and can not produce harm to human body.
Described epoxy coating is mixed with A, B two component, the formation of component A: epoxy resin 30 ~ 45 weight part, toughened resin 10 ~ 15 weight part, color stuffing 40 ~ 50 weight part, thixotropic agent 0.5 ~ 3 weight part, auxiliary agent 2 ~ 5.5 weight part; The formation of B component: modified aromatic race solidifying agent 15 ~ 22 weight part, curing catalyst 3 ~ 10 weight part.
Coating of the present invention is in use according to A: B=4: 1 weight ratio mixing, as follows through spraying the coating performance index formed:
1, sticking power 20 ~ 30MPa(GB/T5210-2006 paint and varnish pulls open method adhesion test)
2, salt spray resistance (film thickness about 500um) 5000 hours paint films intact (mensuration of the resistance to neutral salt spray performance of GB/T1771-2007 paint and varnish)
3, alternately (-55 ~ 80 DEG C, circulation in 2 hours 1) 12 circulation paint films are intact for paint film cold-hot.(GJB GJB150.5-1986 temperature shock test)
4, resistance to distilled water, tap water 15000 hours, paint film unchanged (mensuration of GB/T9274-1988 paint and varnish resistant to liquid medium);
5, sea water resistance 8000 hours, paint film unchanged (mensuration of GB/T9274-1988 paint and varnish resistant to liquid medium).
6, this coating detects through Disease Control and Prevention Center of Shandong Province and Chinese Disease Control and Prevention Center, and the inspection of its toxicology comprises acute oral toxicity test (LD
50all be greater than 5000mg/kg), mouse marrow cell micro nuclear test, Salmonella reversion test, hygienic safety soak test comprises look, opacity, smelly and taste, naked eyes visible, PH, total dissolved solid, oxygen-consumption, heavy metal (arsenic, cadmium, sexavalent chrome etc.) content, volatile phenol, trichloromethane increasing amount < 0.5ug/L, tetracol phenixin increasing amount < 0.1ug/L, epoxy chloropropane increasing amount < 0.002ug/L, vinylbenzene increasing amount < 0.002ug/L all meets the Ministry of Health to drinking water related product hygienic requirements (" Drinking Water transmission & distribution wetting system and protective material Hygienic safety evaluation specification " (2001)).
Do not add solvent in epoxy coating formula of the present invention, ambient cure, production and construction process meet environmental requirement, the coating of formation accelerates salt-fog test checking in room by experiment, has the preservative effect of more than 15 years.This coating not only can be applicable to boats and ships fresh-water tank, also can be applicable to the inner wall anti-corrosive of the storage tank of city water pipe, water reservoir and food chemistry industry.
Embodiment
Further illustrate the present invention below in conjunction with embodiment, but the present invention is not limited to these embodiments.
The preparation of embodiment 1 curing agent
First bisphenol F type epoxy YDF-17035 weight part is mixed with ethanol 10 weight part by as above proportioning.Again m-xylene diamine 60 weight part, silane coupling agent KH5605 weight part are joined in reactor, be warming up to 80 DEG C, slowly drip the mixed solution of bisphenol F type epoxy and ethanol while stirring, 2 hours are reacted while stirring under 80 DEG C of insulations, adopt the mode of air distillation to be fallen by the ethanol distillation not participating in reaction, obtain the curing agent of light yellow clear liquid state.
Embodiment 2
Take DER331 epoxy resin 30 weight part, adopt toughened resin NC-513 15 weight part, put in stainless cylinder of steel and stir with homogenizer, add defoamer (AFCONA2723,2020) 1.5 weight parts, wetting dispersing agent (BYK-P104S) 1.5 weight part, flow agent (AFCONA3700) 1.5 weight part, with resin agitating evenly after add titanium dioxide 10 weight part, talcum powder 40 weight part, thixotropic agent 0.5 weight part stir further, then be ground to standard fineness with sand mill or three-roll grinder, filtering barrelling becomes coating component A.
Take curing agent 15 weight part prepared by embodiment 1, adhesion promoter 10 weight part, stirs further, filters the B component that barrelling becomes coating.
During use by A, B two component mix by weight the ratio of 4:1, mechanical stirring is even, as follows through spraying the coating performance index formed:
Sticking power 20 ~ 30MPa; Salt spray resistance (film thickness about 500um) 5000 hours paint films are intact; Paint film cold-hot alternately (-55 ~ 80 DEG C, circulation in 2 hours 1) 12 circulation paint films is intact.Under normal temperature condition, resistance to distilled water, tap water 15000 hours paint films are unchanged; It is unchanged that sea water resistance soaks 8000 hours paint films.
Embodiment 3
Adopt R140 epoxy resin 45 weight part and toughened resin NC-513 10 weight part, put in stainless cylinder of steel and stir with homogenizer, add defoamer (AFCONA2723, 2020) 0.6 weight part, wetting dispersing agent (BYK-P104S) 0.8 weight part, flow agent (AFCONA3700) 0.6 weight part, titanium dioxide 8 weight part is added after even with resin agitating, process white 32 weight part, thixotropic agent aerosil 3 weight part, stir further, then standard fineness is ground to sand mill or three-roll grinder, filter barrelling and become coating component A.
Adopt curing agent 22 weight part prepared by embodiment 1, curing catalyst 3 weight part uses high speed dispersor to stir, and filters the B component that barrelling becomes coating.
During use by A, B two component mix by weight the ratio of 4:1, mechanical stirring is even, identical with embodiment 2 through spraying the coating performance index formed.
Embodiment 4
At plant resources in Wenling shipyard, newly make the boats and ships fresh-water tank of fishing boat, during construction by the process of fresh-water tank bulkhead surface sand-blasting to Sa2.5.Adopt coating prepared by embodiment 2, by A, B two component by A: B=4: 1 weight part take cooperation, stir, special high-pressure Airless spraying equipment is adopted to spray, detect thickness, qualified rear coating normal temperature (25 DEG C) solidification of thickness seven days, uses with after water cleaning.The coating obtained is smooth, surface-brightening, and use after 6 months and check, coating is intact.
Embodiment 5
At From Shandong Rizhao shipyard, the boats and ships fresh-water tank of new shipbuilding, during construction by the process of fresh-water tank bulkhead surface sand-blasting to Sa2.5.Adopt the coating prepared by embodiment 2, by A, B two component by A: B=4: 1 weight part take cooperation, stir, adopt special high-pressure Airless spraying equipment to spray, coating normal temperature (25 DEG C) solidification, after seven days, is cleaned after whole cabin fresh water at least deposits 48 hours with water and is used.The coating obtained is smooth, surface-brightening, and use after 12 months and check, coating is intact.
Embodiment 6
The application of paints of employing prepared by embodiment 3 is in Qingdao Sanli German-US water equipment Co.ltd's tank product.Water receptacle inwall through sandblasting to Sa2.5, A, B two components are heated between 70 ~ 75 DEG C respectively, adopt special Two-component High-pressure Airless Spraying equipment, in the ratio mixing spraying of A: B=4: 1 (weight ratio), normal temperature (25 DEG C) solidification seven days, uses after rinsing with clear water.The appearance of coat obtained is smooth, surface-brightening, and anti-permeability is better.Use 18 months, check that coating does not ftracture, do not come off, coating is intact.
Embodiment 7
Adopt the coating prepared by embodiment 3, the PP pellet silo inwall being applied to Teng Hui boiler plant company limited of Foshan City does anti-corrosion protection material.First the process of top tank structure surface sand-blasting is reached Sa2.5 during construction.By A, B two component by A: B=4: 1 weight part take cooperation, stir, A, B two components are heated between 70 ~ 75 DEG C respectively, adopt special Two-component High-pressure Airless Spraying equipment, in the ratio mixing spraying of A: B=4: 1 (weight ratio), normal temperature (25 DEG C) solidification was come into operation after seven days.The coating obtained is smooth, surface-brightening, and use open tank inspection after 12 months, coating is intact.
Claims (6)
1. a boats and ships fresh-water tank nonpoisonous anti-corrosive paint, is characterized in that, two-component coating, is made up of, wherein component A and B component
Component A is made up of following material:
B component is made up of following material:
Raw material weight number
Curing agent 15 ~ 22
Curing catalyst 5 ~ 10
A and B presses 4:1 weight ratio mixing spraying;
Wherein, described toughened resin is the NC-513 cardanol resin of Ka Delai company, described curing agent is bisphenol F type epoxy YDF-170 and m-xylene diamine Reactive Synthesis, described curing catalyst is commercially available DMP-30, and it adds appropriate low-molecular-weight epoxy resin modification by diaminodiphenyl-methane to make.
2. boats and ships fresh-water tank nonpoisonous anti-corrosive paint according to claim 1, is characterized in that described epoxy resin to be oxirane value is the bisphenol A type epoxy resin of 0.48 ~ 0.54.
3. boats and ships fresh-water tank nonpoisonous anti-corrosive paint according to claim 1, is characterized in that, described auxiliary agent is defoamer, wetting dispersing agent, flow agent.
4. boats and ships fresh-water tank nonpoisonous anti-corrosive paint according to claim 1, is characterized in that, described color stuffing is one or more in titanium dioxide, process white, talcum powder.
5. boats and ships fresh-water tank nonpoisonous anti-corrosive paint according to claim 3, it is characterized in that described defoamer be Ai Fukena company AFCONA-2723 and AFCONA2020 according to 4:1 weight ratio with the use of.
6. boats and ships fresh-water tank nonpoisonous anti-corrosive paint according to claim 1, it is characterized in that, the preparation method of described curing agent comprises the following steps: mixed with ethanol 10 weight part by 35 parts by weight of bisphenol F type epoxy YDF-170, again by m-xylene diamine 60 weight part, 5 weight part silane coupling agent KH560 join in reactor, be warming up to 80 DEG C, slowly drip the mixed solution of bisphenol F type epoxy YDF-170 and ethanol while stirring, 2 hours are reacted while stirring under 80 DEG C of insulations, the mode of air distillation is adopted to be fallen by the ethanol distillation not participating in reaction, obtain the curing agent of light yellow clear liquid state.
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| CN106928890A (en) * | 2015-12-30 | 2017-07-07 | 卡本复合材料（天津）有限公司 | A kind of hot setting high temperature resisting dipping glue and preparation method thereof |
| CN105778722A (en) * | 2016-04-28 | 2016-07-20 | 安徽开林新材料股份有限公司 | Solvent-free paint for drinking water cabins of ships |
| CN105965122B (en) * | 2016-06-25 | 2018-12-28 | 天津泊荣石油科技发展有限公司 | A kind of ocean engineering steel surface anti-fouling corrosion resistant alloy and pricker coating method |
| CN106675321B (en) * | 2016-11-22 | 2019-02-01 | 海洋化工研究院有限公司 | A kind of heatproof durably anticorrosion paint for vessel sewage cabin |
| CN108795222A (en) * | 2017-05-03 | 2018-11-13 | 海洋化工研究院有限公司 | High Performance Corrosion Protective Coatings for ship power axis non-working surface |
| CN110238014A (en) * | 2019-06-12 | 2019-09-17 | 浙江国际海运职业技术学院 | A kind of construction method of ship fresh-water tank coating |
| CN112680105A (en) * | 2020-12-28 | 2021-04-20 | 大连油漆有限公司 | Environment-friendly anticorrosive paint, hyperbranched epoxy resin and preparation method thereof |
| CN113583538B (en) * | 2021-07-15 | 2022-07-26 | 海洋化工研究院有限公司 | Solvent-free nontoxic anticorrosive paint for marine culture cabin |
| CN115286972B (en) * | 2022-07-28 | 2023-05-23 | 国能(山东)能源环境有限公司 | Anticorrosive paint and preparation method of anticorrosive paint |
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