CN104693908A - Polystyrene styrene-butadiene rubber anticorrosive coating - Google Patents
Polystyrene styrene-butadiene rubber anticorrosive coating Download PDFInfo
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- CN104693908A CN104693908A CN201310660650.4A CN201310660650A CN104693908A CN 104693908 A CN104693908 A CN 104693908A CN 201310660650 A CN201310660650 A CN 201310660650A CN 104693908 A CN104693908 A CN 104693908A
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- butadiene rubber
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention refers to a polystyrene styrene-butadiene rubber anticorrosive coating. Polystyrene resin is modified by adding styrene-butadiene rubber and epoxy resin. The novel anticorrosive coating with high anticorrosive performance is prepared by thin passing, mixing and dissolving as well as grinding. The anticorrosive coating has the characteristics of high solid content, low viscosity, high film drying speed, convenient construction, excellent anticorrosive performance and the like. The anticorrosive coating can be widely applied to the inner and outer walls of equipment, pipelines and buildings seriously and chronically corroded by acid, alkali and all chemical agents in the industries of oil refining, chemical industry, machinery, chemical fibers, rubber, printing and dying, fertilizers, buildings and metallurgy.
Description
Technical field
The present invention relates to thermoset, thermoplasticity protective system, particularly relate to polystyrene styrene-butadiene rubber anticorrosive coating.
Background technology
After " the Seventh Five-Year Plan ", China successively have developed anti-corrosive paint of epoxy resin, drinks wake up resin anti-corrosive paint, polyurethane protective system, chlorinated polyvinyl chloride protective system, chlorinated rubber protective system etc., but often purposes is single, over-all properties is poor for they, as excellent in its antiseptic property of anti-corrosive paint of epoxy resin, but its water tolerance, weathering resistance and thermotolerance are all poor.Along with the progress of science and technology, after the eighties, there is the chlorosulfonated polythylene coatings of excellent performance, it has excellent resistance to Light chlorimation, resistance to weathering energy, excellent chemical resistance, excellent humidity resistance, cold-resistant thermotolerance, excellent physical and mechanical properties etc., but its price is relatively high.Therefore research and develop a kind of protective system inexpensive, efficient, durable, easy to use and become an important research topic.
Polystyrene (PS) has that resistant to chemical media is good, paint film appearance is good, the fireballing feature of drying varniss, but PS also has shortcoming clearly: poor adhesive force, paint film toughness and poor impact resistance.According to the feature of polystyrene, do film-forming resin with it and can produce the good protective system of antiseptic property.Many research work have been carried out both at home and abroad in this field, as patent CN1162611 adopts method p-poly-phenyl ethenoid resin polystyrene resin and styrene-butadiene rubber(SBR) being carried out hot tears refining to carry out modification, then add appropriate color stuffing and a kind of protective system developed by auxiliary agent.Its antiseptic property is pretty good, paint film toughness and shock-resistance are also improved, but due to the inherent defect of polystyrene and butylbenzene phase glue, the sticking power of coating and hardness have certain defect: patent CN1056397 directly makes film-forming resin with deposed polystyrene, and with epoxy resin, modification is carried out to it, the sticking power of resin is improved significantly, but the hardness of paint film and antiseptic property have certain defect.
Summary of the invention
The object of the invention is to the weak point overcoming above-mentioned polystyrene protective system, prepare novel polyphenyl ethene styrene-butadiene rubber anticorrosive coating that is efficient, durable, excellent performance.
Object of the present invention can be realized by following technical scheme:
Protective system a, containing solvent, film-forming resin, auxiliary agent, color stuffing, it is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(80-180): (3-50): 100-200), be preferably (100 ~ 150): (5 ~ 20): (120 ~ 170).
The number-average molecular weight of polystyrene of the present invention is 5 ~ 80,000.It can adopt waste old polystyrene foamed plastic to obtain through thin-pass degraded, also can directly adopt low-molecular-weight polystyrene: the number-average molecular weight of styrene-butadiene rubber(SBR) of the present invention is 6 ~ 100,000.It can adopt industrial styrene-butadiene rubber(SBR) to obtain through thin-pass degraded, also can directly adopt low-molecular-weight styrene-butadiene rubber(SBR).
Epoxy resin of the present invention is the epoxy resin of E type epoxy resin, linear loop epoxy resins or other types.Their oxirane value is 0.3 ~ 0.6 equivalent/100g resin.
Solvent selected by the present invention is that fourth is intoxicated, toluene, dimethylbenzene, acetic acid fourth vinegar etc.
The weight proportion of composing of the main composition of protective system a is: solvent: film-forming resin: auxiliary agent: color stuffing=(350 ~ 650): (150 ~ 250): (5 ~ 50): (150 ~ 300).
Protective system a is prepared by the following step and obtains:
(1) by number-average molecular weight be 5 ~ 80,000 polystyrene resin wiring solution-forming:
(2) by number-average molecular weight be 6 ~ 100,000 styrene-butadiene rubber(SBR) wiring solution-forming:
(3) step (1) gained solution, step (2) gained solution and epoxy resin are fully uniformly mixed by recipe requirements admixture batch can:
(4) add auxiliary agent, color stuffing fully stirs, grind, filter.
This coating can be used as priming paint and commercially available any colored paint, finish paint with the use of, also can press coating specification brushing as protective system separately.
Protective system b, containing solvent, film-forming resin, auxiliary agent, color stuffing, it is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(150 ~ 250): (3 ~ 50): (50 ~ 150), are: polystyrene resin: styrene-butadiene rubber(SBR) preferably: epoxy resin=(170 ~ 230): (5 ~ 20): (70 ~ 130).
The number-average molecular weight of polystyrene of the present invention is 5----8 ten thousand.It can adopt waste old polystyrene foamed plastic to obtain through thin-pass degraded, also can directly adopt low-molecular-weight polystyrene: the number-average molecular weight of styrene-butadiene rubber(SBR) of the present invention is 6 ~ 100,000.It can adopt industrial styrene-butadiene rubber(SBR) to obtain through thin-pass degraded, also can directly adopt low-molecular-weight styrene-butadiene rubber(SBR).
Epoxy resin of the present invention is the epoxy resin of E type epoxy resin, linear loop epoxy resins or other types.Their oxirane value is 0.3 ~ 0.6 equivalent/100g resin.
Solvent selected by the present invention is fourth heir, toluene, dimethylbenzene, acetic acid fourth enzyme etc.
The weight proportion of composing of the main composition of protective system C is: solvent: film-forming resin: auxiliary agent=(350 ~ 650): (250 ~ 50): (5 ~ 50).
Protective system C is prepared by the following step and obtains:
(1) by number-average molecular weight be 5 ~ 80,000 polystyrene resin wiring solution-forming:
(2) by number-average molecular weight be 6 ~ 100,000 styrene-butadiene rubber(SBR) wiring solution-forming:
(3) step (1) gained solution, step (2) gained solution and epoxy resin are fully uniformly mixed by recipe requirements admixture batch can:
(4) add auxiliary agent to be uniformly mixed.
This coating can be used as finish paint and commercially available any priming paint, colored paint with the use of, also can with protective system a of the present invention and protective system b with the use of.
Now by as follows for technical scheme concrete analysis of the present invention:
1. filmogen
Polystyrene has that resistant to chemical media is good, paint film appearance is good, the fireballing feature of drying varniss, but polystyrene also has shortcoming clearly: poor adhesive force, paint film toughness and poor impact resistance.We find, styrene-butadiene rubber(SBR) can improve toughness and the shock-resistance of coating well.And epoxy resin can improve viscosity and the sticking power of coating well, and polystyrene, styrene-butadiene rubber(SBR), epoxy resin intermiscibility are fine.Through repeatedly screening, being finally specified to film resin system is: polystyrene one styrene-butadiene rubber(SBR) one epoxy resin.
2. the formulating of recipe of film-forming resin
The feature of protective system a is that, rate of drying good to the sticking power on coated article surface soon, and has certain toughness, shock-resistance and resistant to chemical media, and therefore in formula, polystyrene is less, styrene-butadiene rubber(SBR) is appropriate, epoxy resin is some more.The feature of protective system b is that resistant to chemical media is good, paint film toughness and shock-resistance good, and rate of drying is fast, and therefore in formula, polystyrene is some more, styrene-butadiene rubber(SBR) appropriate, epoxy resin is some more.
The feature of protective system c is that outward appearance is good, resistant to chemical media is good, toughness and shock-resistance good, therefore in formula, polystyrene is some more, styrene-butadiene rubber(SBR) appropriate, epoxy resin is less.Through repeatedly repetition test screening; the weight proportion of composing of the film-forming resin of protective system a is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(80 ~ 180): (3 ~ 50): (100 ~ 200), is preferably (100 ~ 150): (5 ~ 20): (120 ~ 170); The weight proportion of composing of the film-forming resin of protective system b is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(120 ~ 220): (3 ~ 50): (50 ~ 150), are: polystyrene resin: styrene-butadiene rubber(SBR) preferably: epoxy resin two (140 ~ 190): (5 ~ 20): (70 ~ 120); The weight proportion of composing of the film-forming resin of anticorrosion painting c is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(150 ~ 250): (3 ~ 50): (50 ~ 150). be preferably: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(170 ~ 230): (5 ~ 20): (70 ~ 130).
3. the degraded of polystyrene, styrene-butadiene rubber(SBR) molecular weight
Under normal circumstances, the molecular weight of polystyrene, styrene-butadiene rubber(SBR), generally 10 ~ more than 200,000, dissolves difficulty, and intermiscibility is very poor, even if after dissolving, the concentration of solution is not high yet, viscosity is also very large, is unfavorable for the preparation of coating, their molecular weight must be degraded.In the present invention, the degraded of polystyrene, styrene-butadiene rubber(SBR) molecular weight is mainly realized by thin-pass technique.Namely plasticate on two volumes of machines, to reach the object of molecular weight degradation.
4. the selection of solvent
In order to make coating itself have uniform continuity, to keep good bonding force, no matter be polymkeric substance or solvent, its mutual solubility parameter is more close, and its mutual solubility is better.Therefore we select that fourth is intoxicated, solvent made by toluene, dimethylbenzene, acetic acid fourth vinegar etc.
5. the selection of auxiliary agent
Protective system not only needs higher impact strength, and needs good toughness.Determine that phthalic acid vinegar is as softening agent through test: select the intoxicated class of two phenylpropyl alcohols to make anti-aging agent: UV light absorber, anti-sedimentation agent, flow agent, binding agent etc. can also be added.
6. the selection of pigment and filler
The present invention's pigment used is the same with other coating with filler, but light calcium carbonate, oxidation diction etc. acid nonfastly can not use.Conventional pigment has iron oxide red, rod pellet, diction inscription Huang, mica powder, rutile sections white powder etc.Conventional filler has sulfuric acid to pause powder, mica powder, terra alba, talcum powder etc.
In sum, the present invention has the following advantages:
(1) adopt styrene-butadiene rubber(SBR) p-poly-phenyl ethene to carry out modification, the snappiness of coating, wear resistance, erosion-resisting characteristics improve greatly.
(2) adopt epoxy resin p-poly-phenyl ethene to carry out modification, tack and the mechanical property of coating improve greatly.
(3) employing thin-pass degradation technique p-poly-phenyl ethene, styrene-butadiene rubber(SBR) are degraded, and molecular resin amount is reduced greatly,
Consistency improves greatly, and solubility property also significantly improves simultaneously.
(4) protective system coating rate of drying of the present invention is fast, and resistant to chemical media, paint film toughness and shock-resistance are superior.
Embodiment
In order to better the present invention is described, be described further below in conjunction with embodiment, but the present invention is not limited to down
State embodiment.
(1) preparation of styrene resin solutions
1000.0g polystyrene resin is carried out thin-pass degraded by test 1., packing thin-pass 20 times, controls to plasticate the time
At 20 minutes, then the polystyrene resin after degraded is dissolved, obtain the styrene resin solutions that concentration is 25%.The method that degraded polystyrene resin solution prepare in test 2 ~ 4 is identical with testing 1, degradation technique condition and
The performance test results is listed in table 1.
Table 1
(2) preparation of styrene-butadiene rubber(SBR) solution
500.0g styrene-butadiene rubber(SBR) is carried out thin-pass degraded by test 5., packing thin-pass 20 times, controls to plasticate the time 30
Minute, then the styrene-butadiene rubber(SBR) after degraded is dissolved, obtain the styrene-butadiene rubber(SBR) solution that concentration is 5%.The method that test 6----7 prepares degraded styrene-butadiene rubber(SBR) solution is identical with test 5, and degradation technique condition and the performance test results are listed in table 2.
Table 2
(3) preparation of protective system a
350.0g is tested the styrene resin solutions in I by test 9., and the styrene-butadiene rubber(SBR) solution in 100.0g test 5,100.0g epoxy resin adds in 1000ml beaker, is fully uniformly mixed.Then in beaker, add red iron oxide 200.0g, softening agent 15.0g, coupling agent 5.0g, toluene 230.0g, fully stirs, and then grinds with sand mill.Fineness is surveyed in sampling, when fineness reaches below 50 microns, carries out filtration blowing with gauze on the 120th.Get the tinplate of 6 pieces of 150mmX70 sun, repeatedly polish with 120 order sand paper, removing surface dirt, then draw main scrub with oil, dry.Adopt brush coating process, obtained paint film.Get wherein one piece of model to test.
The preparation method of test 10-12 is identical with test 9, and just proportioning raw materials is different.
J-52-2 chlorosulfonated polyethylene anti-corrosion primer 30 grams is got in test 13., prepares 6 pieces of priming paint models by coating specification.
H mono-52-33 epoxy anticorrosion primer 30 grams is got in test 14., prepares 6 pieces of priming paint models by coating specification.
The test-results of test 9-14 lists in table 3.
Table 3
(4) preparation of protective system b
Test 15. is by the styrene resin solutions in 500.0g test 2, and the styrene-butadiene rubber(SBR) solution in 150.0g test 6,80.0g epoxy resin adds in 1000ml beaker, is fully uniformly mixed.Then in beaker, add red iron oxide 100.0g, 100.0g iron white powder, softening agent 10.0g, coupling agent 10.0g, toluene 50.0g, fully stirs, and then grinds with sand mill.Fineness is surveyed in sampling, when fineness reaches below 50 microns, filters blowing with 120 order gauzes.
The preparation process of revision test 15, carries out test 16 ~ 18 by the composition of raw materials in table 4.
Get the paint film model prepared in 4 pieces of tests 11 ~ 12 respectively, get coating prepared by test 15 ~ 16, adopt
Brush coating process is prepared into coating a mono-coating b model, gets wherein one piece of model respectively and tests.
Get the paint film model prepared in 4 pieces of tests 13 ~ 14 respectively, get coating prepared by test 17----18, adopt brush coating process to be prepared into coating J-52-2 mono-coating b model and coating H-52-33 mono-coating b model, get wherein one piece of model respectively and test.
The paint film model prepared in 4 pieces of tests 9 is got in test 19., gets J-52-90 chlorosulfonated polyethylene anticorrosive paint 30 grams, adopts brush coating process to be prepared into coating a coating J-52-90 model, gets wherein one piece of model and test.
The paint film model prepared in 4 pieces of tests 10 is got in test 20., gets G-52-31 and crosses chlorine sulphur ethylene antifouling paste 30 grams, adopts brush coating process to be prepared into coating a coating G-52-31 model, gets wherein one piece of model and test.
Test-results lists in table 4.
Table 4
Claims (10)
1. a protective system, containing solvent, film-forming resin, auxiliary agent, color stuffing, it is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(80 ~ 180): (3 ~ 50): (100 ~ 200).
2. protective system as claimed in claim 1, is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(100 ~ 150): (5 ~ 20): (120 ~ 170).
3. protective system as claimed in claim 1, it is characterized in that the number-average molecular weight of described polystyrene is 5 ~ 80,000, the number-average molecular weight of described styrene-butadiene rubber(SBR) is 6 ~ 100,000.
4. protective system as claimed in claim 1, is characterized in that the oxirane value of described epoxy resin is 0.3 ~ 0.6 equivalent/100g resin.
5. protective system as claimed in claim 1, is characterized in that the weight proportion of composing that it mainly forms is: solvent: film-forming resin: auxiliary agent: color stuffing=(350 ~ 650): (150 ~ 250): (5 ~ 50): (150 ~ 300).
6. a protective system, containing solvent, film-forming resin, auxiliary agent, color stuffing, it is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(120 ~ 220): (3 ~ 50): (50 ~ 150).
7. protective system as claimed in claim 6, is characterized in that the weight proportion of composing of described film-forming resin is: polystyrene resin: styrene-butadiene rubber(SBR): epoxy resin=(140 ~ 190): (5 ~ 20): (70 ~ 120).
8. protective system as claimed in claim 6, it is characterized in that the number-average molecular weight of described polystyrene is 5 ~ 80,000, the number-average molecular weight of described styrene-butadiene rubber(SBR) is 6 ~ 100,000.
9. protective system as claimed in claim 6, is characterized in that the oxirane value of described epoxy resin is 0.3 ~ 0.6 equivalent/100g resin.
10. protective system as claimed in claim 6, is characterized in that the weight proportion of composing that it mainly forms is:
Solvent: film-forming resin: auxiliary agent: color stuffing=(350 ~ 650): (180 ~ 300): (5 ~ 50): (150 ~ 250).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118161A (en) * | 2016-06-30 | 2016-11-16 | 成都华聚杨武家具有限公司 | A kind of furniture fast setting environmental protection coating material |
| CN108916699A (en) * | 2018-09-04 | 2018-11-30 | 嘉善阳安电子科技有限公司 | A kind of LED light having water-proof function |
| CN109997265A (en) * | 2017-07-25 | 2019-07-09 | 株式会社Lg化学 | For the copper foil and its manufacturing method of secondary cell and including the secondary cell of the copper foil |
| CN113174178A (en) * | 2016-02-09 | 2021-07-27 | 太阳化学公司 | High molecular weight polystyrene in inks and coatings |
| US11306216B2 (en) | 2016-02-09 | 2022-04-19 | Sun Chemical Corporation | High molecular weight polystyrene in inks and coatings |
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- 2013-12-05 CN CN201310660650.4A patent/CN104693908A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174178A (en) * | 2016-02-09 | 2021-07-27 | 太阳化学公司 | High molecular weight polystyrene in inks and coatings |
| US11306216B2 (en) | 2016-02-09 | 2022-04-19 | Sun Chemical Corporation | High molecular weight polystyrene in inks and coatings |
| CN113174178B (en) * | 2016-02-09 | 2023-02-03 | 太阳化学公司 | High molecular weight polystyrene in inks and coatings |
| CN106118161A (en) * | 2016-06-30 | 2016-11-16 | 成都华聚杨武家具有限公司 | A kind of furniture fast setting environmental protection coating material |
| CN109997265A (en) * | 2017-07-25 | 2019-07-09 | 株式会社Lg化学 | For the copper foil and its manufacturing method of secondary cell and including the secondary cell of the copper foil |
| US11367876B2 (en) * | 2017-07-25 | 2022-06-21 | Lg Energy Solution, Ltd. | Copper foil for secondary battery, method of manufacturing the same, and secondary battery including the same |
| CN108916699A (en) * | 2018-09-04 | 2018-11-30 | 嘉善阳安电子科技有限公司 | A kind of LED light having water-proof function |
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Application publication date: 20150610 |