CN102702916B - Solvent-free tricresyl phosphate modified epoxy heavy anticorrosive coating - Google Patents
Solvent-free tricresyl phosphate modified epoxy heavy anticorrosive coating Download PDFInfo
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Abstract
The invention discloses a solvent-free tricresyl phosphate modified epoxy heavy anticorrosive coating which comprises a component A and a component B, wherein the component A comprises 5-10 percent of E44 epoxy resin, 5-10 percent of NPPN-631 epoxy resin, 1-7.5 percent of tricresyl phosphate, 1-7.5 percent of cumarone resin, 1-5 percent of activated thinner, 0.1-0.5 percent of BYK defoaming agent, 0.1-0.5 percent of HX leveling agent, 1-4 percent of multifunctional rheological agent, 5-10 percent of aluminum triphosphate, 5-10 percent of wollastonite powder, 10-20 percent of talcum powder, 5-1 percent of activated silica and 5-10 percent of other pigment fillers; and the component B comprises 10-30 percent of cardanol modified amine and 0.1-0.5 percent of modified silane coupling agent. The solvent-free tricresyl phosphate modified epoxy heavy anticorrosive coating disclosed by the invention can be sprayed by adopting single-component or dual-component high-pressure airless way and has the advantages of strong adhesive power, favorable corrosive performance, low viscosity, long working life, safety in use, energy saving and environment friendliness. One-time coating can reach 300-400mum without sagging.
Description
Technical field
The present invention relates to a kind of chemical material field technology, particularly a kind of no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating.
Background technology
China is to antiseptic projects such as boats and ships, harbour, bridge, marine drilling platform, production vessel and submerged pipelines at present; more than 80% adopt solvent epoxy coatings to protect, and solvent evaporates contaminate environment impact to HUMAN HEALTH; inflammable, the explosive unsafe factor that brings of solvent in addition; and multiple tracks application, long construction period, labour intensity is large; especially in film process; volatilization due to solvent, brings pin hole to paint film, affects preservative effect.
Solvent-free heavy-duty coating belongs to efficiently, safety, environmental protection, energy-saving coating, fine in aspect performances such as opposing burn into opposing chemical substances, to very strong through the good surface adhesion force of processing, the steel plate edge of not processing is had to powerful covering power, at film-forming, in coating drying process, shrinkage coefficient is little, after being dried, there is no extending force.Solventless coatings, when application, can obviously reduce construction road number, during joint, energy-conservation, joint cost.Because it is solvent-free, to closed in spaces, construction has reduced ventilation, and harmless to workmen, safety, and environmental protection, and coating free of pinholes, greatly improved preservative effect.
Denomination of invention is the Chinese patent CN102051105 A of < < solvent-free coumarone modified epoxy heavy-duty anticorrosive coating > >, disclose a kind of no-solvent type modified epoxy heavy-duty coating, especially referred to adopt Two-component High-pressure Airless Spraying heavy-duty coating.From patent, find out, it adopts Two-component High-pressure Airless Spraying, and this equipment is introduced relatively small-sized shipyard and engineering project, and investment is large, has increased investment risk, has reduced the use range of coating, and with the performance such as shop primer is supporting, article is set forth in addition.Through retrieval, there are no the patent report of the ester modified solvent-free epoxy heavy-duty anticorrosive coating of phosphate trimethylbenzene.
The reason that existing solvent-free epoxy heavy-duty anticorrosive coating is not yet used widely at home, high mainly due to its viscosity, it is short that the first and second components mix rear working life, poor with the matching capacity of finish paint, and more responsive to ambient moisture.
Steel structure member anticorrosion 80% in current domestic ocean environment adopts solvent epoxy coatings to carry out anticorrosion, yet solvent epoxy coatings is because it contains solvent, film process floating coat must leave pin hole, affect antiseptic property, if needing build is the paint film of 300～400 μ m, need multiple tracks application, time-consuming, separately construct due to solvent evaporates, can affect HUMAN HEALTH, and bring unsafe factor to construction, and pollute epoxy, waste resource, and existing solventless epoxy coating, because viscosity is high, working life is short, affects it and is widely used.
Need a kind ofly to realize disposable application build and reach as high as 300～400 μ m, embody low viscosity, working life is long, and anti-sag performance is good, with shop primer, coating material that various overcoatability is good.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating, a kind of strong adhesion is provided, physical strength is high, antiseptic property is excellent, construction technology performance is good, energy-conservation, environmental protection, solvent-free modified epoxy heavy-duty coating, can be used for the steel structure member in the ocean environment such as boats and ships, harbour, bridge, marine drilling platform, production vessel and submerged pipeline cheaply.
In order to realize the object solving the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating of the present invention, comprise the first and second components, wherein each raw material of first component accounts for the mass percent of the first and second component total amounts and is: E44 epoxy resin 5～10%, NPPN-631 epoxy resin 5～10%, Tritolyl Phosphate 1～7.5%, cumarone resin 1～7.5%, reactive thinner epoxy propane butyl ether 1～5%, BYK defoamer 0.1～0.5%, HX flow agent 0.1～0.5%, multi-functional rheological agent 1～4%, aluminium triphosphate 5～10%, wollastonite powder 5～10%, talcum powder 10～20%, active silica 5～10%, other color stuffing 5～10%, the mass percent that each raw material of second component accounts for the first and second component total amounts is: modified by cardanol amine 10～30%, modified silane coupler 0.1～0.5%, described multi-functional rheological agent is the mixture of recessed soil and aerosil mass ratio 3:1.
Described NPPN-631 epoxy resin belongs to liquid phenolic epoxies epoxy resin, epoxy equivalent (weight) 168～178g/eq, viscosity: 25 ℃ of 1100～1700cps.
Described reactive thinner is epoxy propane butyl ether.Specific targets are: oxirane value eq/100g: >=0.60; Organochlorine eq/100g :≤0.02; Inorganic chlorine eq/100g :≤0.001, viscosity mpa.s/25 ℃ :≤10.
Described E44 epoxy resin, epoxy equivalent (weight) 210～244g/eq, other indexs are: softening temperature: 15～23 ℃, viscosity: 25 ℃, 6～10PaS, belongs to liquid dihydroxyphenyl propane based epoxy resin.
Described BYK defoamer is silicone antifoam agent.The further preferred BYKA-530 trade mark.
Described HX flow agent is to belong to non-silicon class.The further preferred HX-3300 trade mark.
Described talcum powder is the talcum powder of ultra-fine or fiber.
Described mica powder is the mica powder of sheet.
Described active silica refers to the active silica of the sub-nano material of processing through silane coupling agent.Treatment process is: active silica and silane coupling agent are that 2:1 evenly mixes according to mass ratio, are then positioned over centrifugation in whizzer.Preferred silane coupling agent is γ-(methacryloxypropyl) propyl trimethoxy silicane, the SH-6030 of further preferred Dow corning.
Other described color stuffing is red iron oxide, iron oxide yellow or titanium dioxide.
Described modified by cardanol amine is that natural long-chain replaces pnenolic aldehyde amine hardener, contain on aliphatics amino, weakly acidic phenolic hydroxyl group and phenyl ring with containing two key C15 long-chains.The MD-2015 modified by cardanol amine hardener that further preferably Shanghai Meidong Biological Material Co., Ltd produces.
Described modified silane coupler, boiling point: 217 ℃, proportion: 0.92, flash-point: 98 ℃.Inorganic is had to good affinity interaction.Further preferred Dao Senni AD-9 modified silane coupler.
No-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating of the present invention, its preparation method is: first under 100 ℃ of steam-heated conditions, the epoxy modifying agent that fully dissolved oxygen indene resin, Tritolyl Phosphate, reactive thinner form, stirs, and filters and packages standby; Secondly the resin the epoxy modifying agent preparing and in filling a prescription, auxiliary agent, under the condition of high speed dispersion, are uniformly dispersed, and then add other color stuffing, and fineness≤100 μ m, filters and packages and can use.
The present invention is high for solving solventless epoxy coating cost, and working life is short, and complicated construction technique is supporting with finish paint, shop primer, to envrionment temperature susceptibility high-technology problem, and technical scheme principle is:
(1) in coating, add Tritolyl Phosphate, after hydrolysis, produce phosphate anion passivation steel plate, thereby make anodic polarization, greatly improved preservative property and the sticking power of coating; Solventless epoxy coating after modification, its viscosity is low, met construction process requirement working life, there is good matching capacity with shop primer, various finish paint, for extensive use on boats and ships provides the necessary technical, not only reduce coating cost, also improved the stability in storage of coating and the snappiness of paint film.
(2) in coating, add cumarone resin, not only there is good intermiscibility with Tritolyl Phosphate, epoxy resin, and its further water tolerance, resistance to acids and bases and insulativity that improves coating, improve the disadvantage that pure epoxy is easy to loss of gloss and efflorescence, also further reduced coating cost.
(3) use resin and the optimum combination of liquid bisphenol A epoxide resin that contains plural epoxy group(ing) in a molecule, effectively increase cross-linking density, make compact structure, coating is tough and tensile, non-corrosibility is good, salt spray resistance reaches 3000h, and resistance to 80 ℃ of hot salt brines soak and reach not corrosion of 1000h, do not come off, non-foaming, the excellent properties of peel off≤6mm of cut place.
(4) preferred recessed soil and aerosil form multi-functional auxiliary rheological agents, excellent performance, and production technique is simple, has good workability, and single track build reaches 300～400 μ m, environmental friendliness, time and labour saving, saving energy and cost.
(5) use the active silica through the sub-nano material of coupling agent treatment, the talcum powder of ultra-fine or fiber, the mica powder of sheet, manifest sub-nano material function, make coating more tight, perviousness reduces, preservative property are more superior, wear resistance is stronger, active silica also plays the anti-settling effect of thixotroping simultaneously, through under-1.5v electropotential condition, main coating dry film thickness is 320 μ m left and right, be painted on exposed steel plate, cathodic disbonding≤4mm, be sprayed on the shop primer being exposed to the sun 2 months of our company's production, cathodic disbonding≤8mm, reach GB/T6822-2007 and GB/T7790-2008 standard-required index completely.
(6) preferably cardanol modified amine curing agent and AD-95 modified silane coupler are combined into no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating solidifying agent, and apparent viscosity is low, and consistency is good, quick solidifying, the tough and tensile intensity of coating is high, water-tolerant, salt fog resistance is good, strong adhesion, non-corrosibility is excellent, through sticking power, pulls open more than method test reaches 5.0Mpa, impact 40cm, 2 grades of snappinesies, experimental data shows, as solvent-free modified epoxy heavy-duty coating, has reached higher standard.
Table 1 is no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating the key technical indexes.
Table 1 no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating the key technical indexes
From the key technical indexes of table 1 illustrate this coating can boats and ships, the steel structure member antiseptic project project such as harbour, bridge, marine drilling platform, production vessel and submerged pipeline, underground buried tube.
By adopting technique scheme, the present invention has following beneficial effect:
The present invention adopts the solventless epoxy coating of Tritolyl Phosphate and cumarone resin modification, can adopt two components or single-component airless spraying, there is excellent sticking power, preservative property, in the harsh corrosive environment in ocean, can obtain permanently effective protection, its viscosity is low, and first and second component mix after working life long, disposable application build can reach not sagging of 300～400 μ m, with shop primer, various overcoatabilities reduce easily application road number, shortened construction period, on HUMAN HEALTH without impact, use safety, and energy-conserving and environment-protective, extensive market, there is important economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating properties-correcting agent production scheme.
Fig. 2 is no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating first component production scheme.
Fig. 3 is no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating second component production scheme.
Fig. 4 be film, the interface schematic diagram of ground between the two.
In figure, 1-ground, 2-films.
Embodiment
The embodiment of the present invention is as follows in Table 2:
Table 2, embodiment proportioning form
| First component starting material title | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| E44 | 9 | 7.5 | 15 |
| NPPN-631 | 1 | 7.5 | 5 |
| Tritolyl Phosphate | 10 | 5 | 2 |
| Cumarone resin | 4 | 5 | 5 |
| Reactive thinner | 5 | 3 | 1 |
| BYK defoamer | 0.5 | 0.2 | 0.1 |
| HX flow agent | 0.5 | 0.3 | 0.1 |
| Multi-functional rheological agent | 3 | 2 | 1 |
| Aluminium triphosphate | 5 | 8 | 3 |
| Wollastonite powder | 15 | 8 | 9 |
| Talcum powder | 19 | 17 | 15 |
| Active silica | 11 | 8.5 | 3 |
| Other color stuffing | 8.9 | 7.7 | 10.3 |
| Second component starting material title | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Modified by cardanol amine | 8 | 20 | 30 |
| AD-95 | 0.1 | 0.3 | 0.5 |
Wherein, the reactive thinner trade mark of embodiment 1 is NC-513, the BYK defoamer trade mark is BYK-067A, HX flow agent is HX-3050, multi-functional rheological agent is that recessed soil and aerosil are according to mass ratio 4:1 ratio mixture, other color stuffings refer to red iron oxide, and cumarone resin is U.S. Cumar R-12.
The reactive thinner trade mark of embodiment 2 is 660A, the BYK defoamer trade mark is BYK-A530, and HX flows X-3300, and multi-functional rheological agent is that recessed soil and aerosil are according to mass ratio 3:1 ratio mixture, other color stuffings refer to titanium dioxide, and cumarone resin is U.S. Cumar R-16.
The reactive thinner trade mark of embodiment 3 is 6350, the BYK defoamer trade mark is BYK-A530, and HX flow agent is HX-3050, and multi-functional rheological agent is that recessed soil and aerosil are according to mass ratio 2:1 ratio mixture, other color stuffings refer to iron oxide yellow, and cumarone resin is U.S. Paradenel 35.
With embodiment 2, do performance test, obtain following data, in Table 3
The performance data of table 3 embodiment 2
Claims (6)
1. a no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating, it is characterized in that comprising the first and second components, wherein each raw material of first component accounts for the mass percent of the first and second component total amounts and is: E44 epoxy resin 5～10%, NPPN-631 epoxy resin 5～10%, Tritolyl Phosphate 1～7.5%, cumarone resin 1～7.5%, reactive thinner 1～5%, BYK defoamer 0.1～0.5%, HX flow agent 0.1～0.5%, multi-functional rheological agent 1～4%, aluminium triphosphate 5～10%, wollastonite powder 5～10%, talcum powder 10～20%, active silica 5～10%, other color stuffing 5～10%, the mass percent that each raw material of second component accounts for the first and second component total amounts is: modified by cardanol amine 10～30%, modified silane coupler 0.1～0.5%, multi-functional rheological agent is the mixture of recessed soil and aerosil mass ratio 3:1, talcum powder is the talcum powder of ultra-fine or fiber, mica powder is the mica powder of sheet, active silica refers to the active silica of the sub-nano material of processing through silane coupling agent, and silane coupling agent is γ-(methacryloxypropyl) propyl trimethoxy silicane, modified silane coupler is Dao Senni AD-9 modified silane coupler.
2. no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating according to claim 1, is characterized in that: NPPN-631 epoxy resin belongs to liquid phenolic epoxies epoxy resin epoxy equivalent (weight) 168～178g/eq, viscosity: 25 ℃ of 1100～1700cps.
3. no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating according to claim 1, is characterized in that: described reactive thinner is epoxy propane butyl ether.
4. no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating according to claim 1, is characterized in that: described BYK defoamer is BYK-A530, and HX flow agent is HX-3300.
5. no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating according to claim 1, is characterized in that: other described color stuffing is red iron oxide, iron oxide yellow or titanium dioxide.
6. no-solvent type Tritolyl Phosphate modified epoxy heavy-duty coating according to claim 1, is characterized in that: the MD-2015 modified by cardanol amine hardener that described modified by cardanol An Wei Shanghai Meidong Biological Material Co., Ltd produces.
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| CN201210160299.8A CN102702916B (en) | 2012-05-23 | 2012-05-23 | Solvent-free tricresyl phosphate modified epoxy heavy anticorrosive coating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023934A1 (en) * | 2005-08-26 | 2007-03-01 | Shikoku Research Institute Incorporated | Anticorrosion coating method for zinc-plated steel structure |
| CN101001929A (en) * | 2004-08-10 | 2007-07-18 | 中国涂料株式会社 | High-solid anticorrosive coating composition, high-solid rapidly-curable anticorrosive coating composition, method of coating ship or the like, high-solid anticorrosive film and rapidly cured high-sol |
| WO2007129564A1 (en) * | 2006-05-10 | 2007-11-15 | Chugoku Marine Paints, Ltd. | Anticorrosive coating composition |
| CN102363690A (en) * | 2011-11-09 | 2012-02-29 | 厦门双瑞船舶涂料有限公司 | High-performance high-solid general modified epoxy antirust paint and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001929A (en) * | 2004-08-10 | 2007-07-18 | 中国涂料株式会社 | High-solid anticorrosive coating composition, high-solid rapidly-curable anticorrosive coating composition, method of coating ship or the like, high-solid anticorrosive film and rapidly cured high-sol |
| WO2007023934A1 (en) * | 2005-08-26 | 2007-03-01 | Shikoku Research Institute Incorporated | Anticorrosion coating method for zinc-plated steel structure |
| WO2007129564A1 (en) * | 2006-05-10 | 2007-11-15 | Chugoku Marine Paints, Ltd. | Anticorrosive coating composition |
| CN102363690A (en) * | 2011-11-09 | 2012-02-29 | 厦门双瑞船舶涂料有限公司 | High-performance high-solid general modified epoxy antirust paint and preparation method thereof |
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