CN1137948C - Cross-linking highly chlorinated polyethylene resin paint and its production process - Google Patents
Cross-linking highly chlorinated polyethylene resin paint and its production process Download PDFInfo
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- CN1137948C CN1137948C CNB001165194A CN00116519A CN1137948C CN 1137948 C CN1137948 C CN 1137948C CN B001165194 A CNB001165194 A CN B001165194A CN 00116519 A CN00116519 A CN 00116519A CN 1137948 C CN1137948 C CN 1137948C
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Abstract
The present invention relates to cross-linking highly chlorinated polyethylene paint and a production method thereof. The paint comprises a component A and a component B, wherein the component A comprises highly chlorinated polyethylene resin containing hydroxy groups, pigment filler, auxiliary agents and solvent, and the component B is an isocyanate addition compound. The hydroxy of the highly chlorinated polyethylene resin containing hydroxy groups and the isocyanic acid of the molecules of the isocyanate addition compound form a spatial network structure with high cross-linking density, and thus, films formed from the paint have the advantages of good anticorrosion performance, weather resistance performance, film coating pliability, shock resistance and adhesive force. The production method of the cross-linking highly chlorinated polyethylene paint has the advantages of convenience, energy saving and low cost.
Description
Technical field
The present invention relates to a kind of cross-linking highly chlorinated polyethylene resin paint and production method thereof.
Background technology
The general steel construction coating of sewerage mainly contains chlorinated rubber coating, chlorosulfonated polythylene coatings, chlorinatedpolyethylene ether coating, epoxypaint, phthalic resin coating etc. both at home and abroad.Because the sanitary sewage of sewerage and trade effluent chemical ingredients are extremely complicated, it is relatively poor that above-mentioned way material has weathering resistance, and the shortcomings such as easy yellowing, embrittlement, efflorescence of filming are so only filmed just destroyed in 3-6 month work-ing life.The report that adopts polyurethane anticorrosive coating is also arranged, for example JP 63183838 (1988) reports the elastomeric antirust steel of coated coloured polyurethanes, JP 56133078 (1981) report erosion shield coating process, this erosion shield has salt spray resistance preferably, is a kind of rust-inhibiting paint, because coating is too thick, snappiness is poor, it is more crisp to film, and according to the test performance project analysis, this coating is not suitable for the outdoor anticorrosive coating of waste water treatment project.
Therefore as everyone knows, the performance of coating depends primarily on resin property, needs to make that a kind of to have anti-soil water medium performance good, the resin of ultraviolet light irradiation and excellent physical and mechanical performance.
Cl content is called highly-chlorinated polyethylene above 65% chlorinatedpolyethylene." chlorinated polymer " book (Ding Zhenwei, flushes one and translates, Chemical Industry Press's 1983.10 publication) introduce highly-chlorinated polyethylene and various synthetic resins and usefulness, modal is Synolac and epoxy resin and usefulness, Synolac can improve weathering resistance, Resins, epoxy has chemical stability, and can improve the gloss and the adhesive power of coating.
Highly-chlorinated polyethylene to all mineral dyes and pigment dyestuff all have good consistency, fast drying, good luster, to separate electrical property good, have the special flame retardant resistance of putting out certainly, in oxygenant medium, mineral acid, alkali, salt, organic acid, alcohol, mineral wet goods chemical, have very high stability.For example has very effective provide protection at 60% sulfuric acid, 20% caustic soda, salt solution, mineral oil and corrosive medium (ammonia, chlorine, sulfurous gas) etc.But the coating that present domestic employing HCPE is produced all is single-component volatile-type coating, can emit hydrogenchloride, easily yellowing, embrittlement, efflorescence in higher temperature or under UV-irradiation, has limited work-ing life and decorative effect.
Summary of the invention
In order to make full use of the highly-chlorinated polyethylene advantage, overcome its shortcoming, adopt the hydroxyl HCPE of hydroxy-containing resin modification and the research work that isocyanate addition product is formed sewerage steel construction coating, be that Practical significance is arranged very much.
For this reason, the object of the invention provides cross-linking highly chlorinated polyethylene resin paint and production method thereof.This coating includes hydroxyl HCPE and the isocyanate addition product with the hydroxy-containing resin modification, after this coating film forming, and the density of texture height, transparency and good mechanical property have excellent corrosion stability and ageing resistance.
Cross-linking highly chlorinated polyethylene resin paint provided by the invention is by hydroxyl HCPE and isocyanate addition product with the hydroxy-containing resin modification, and forms together with color stuffing, auxiliary agent and solvent.Hydroxy-containing resin can be a kind of in hydroxyl organosilicon acrylic resin, acrylic resin, Synolac, the Resins, epoxy.Isocyanate addition product can be selected a kind of in TD1 affixture, TD1 isocyanuric acid ester, the HDI biuret affixture.
The present invention is to provide two component cross-linking highly chlorinated polyethylene coating, comprise first, second two components, the first component comprises HCPE, hydroxy-containing resin, color stuffing, auxiliary agent and solvent, and component B is to select isocyanate addition product for use.
The proportioning of constituent is as follows in the first component:
| Constituent | Weight % |
| The hydroxyl HCPE | 50-60 |
| Pigment | 10-20 |
| Filler | 2-15 |
| Dispersion agent | 0.2-0.5 |
| Flow agent | 0.5-1 |
| Defoamer | 0.3-0.5 |
| Solvent | 15-25 |
Color stuffing and auxiliary agent constituent are the commercial goods in the above-mentioned first component prescription.Pigment can need to select arbitrarily by painting color.Filler can be mica powder, process white powder, superfine talcum powder etc.Solvent can be 260 solvents, N-BUTYL ACETATE, dimethylbenzene, butyl glycol ether, propyl carbinol etc.
The hydroxyl HCPE is made up of with weight % following thing: HCPE 25-30, hydroxy-containing resin (hydroxyl organosilicon acrylic resin, acrylic resin, Synolac or Resins, epoxy) 30-40, solvent 30-45.Non-volatile part of content is 40-50 weight % in the hydroxyl HCPE.Solvent is dimethylbenzene, 260 solvents, N-BUTYL ACETATE, butyl glycol ether, propyl carbinol etc., is to be used to dissolve HCPE.
Component B can require be selected a kind of in TD1 affixture, TD1 isocyanuric acid ester or the HD1 biuret affixture according to the coating product.The component B isocyanate addition product can be the commercial goods.
The weight proportion of first component and component B is 1: 0.25-0.3.
The production method of cross-linking highly chlorinated polyethylene coating of the present invention comprises the following steps:
The first step, at first press the proportioning weighing of hydroxyl HCPE constituent, after HCPE and the dissolving of solvent high speed dispersion, add hydroxy-containing resin again, disperse to stir, make the hydroxyl HCPE, contain non-volatile part of 40-50 weight %, contain OH2.0-3.5%.By the described proportioning weighing of above-mentioned first component, adding color stuffing, dispersion agent, flow agent, defoamer and solvent are even again, and methodology is ground after high speed dispersion and made versicolor mill base routinely, is the first component.In container, stir no caking phenomenon.
Second step, select isocyanate addition product by the requirement of coating product, be component B, affixture is light yellow or water white, contains non-volatile part of 50 weight %, viscosity 100-200mPaS, NCO content 7-8%.
The 3rd step, with first component and component B with weight proportion 1: 0.25-0.3 packs respectively, with two component mixing and stirring, uses up in 2-4 hour during use.
The production method of cross-linking highly chlorinated polyethylene coating of the present invention owing to adopt part low toxicity, little toxic solvents to reduce the consumption of aromatic hydrocarbon solvent, has reduced environmental pollution, easier, the energy conservation of processing method.First component and component B mix the back and have good film forming properties, excellent storage stability under normal temperature or low temperature.
List cross-linking highly chlorinated polyethylene coating of the present invention (A) below: with domestic and international anticorrosive coating: the performance of the coating (E) of high-chlorinated polyethylene coating (B), chlorine ether coating (C), polyvinyl chloride (PVC) coating (D) and document Japanese Patent JP 56133078 reports is relatively
| Coating (A) | Coating (B) | Coating (C) | Coating (D) | Coating (E) | |
| Outward appearance | Of all kinds | Of all kinds | Of all kinds | Of all kinds | |
| Solids content (%) | 45-50 | 47 | 39 | 20 | |
| Build (μ m) | 150-200 | 180 | 180 | 180 | 3.0mm |
| Snappiness (mm) | 1 | 1.5 | 1 | 1 | 4mm φ is no abnormal |
| Shock-resistance (cm) | 50 | 40 | 50 | 50 | 6.0Kgm |
| Sticking power (level) | 1 | 4 | 2 | 2 | |
| The artificial ageing resistance accelerated test | 1 grade of 0 grade of variable color of 1000h efflorescence | 1000h passes through | |||
| The salt-fog resistant test compound coating | 1000h passes through | 1000h passes through | 1000h is no abnormal | ||
| Natural sewage (scene) | 2400h passes through | Not anti- | Still anti- | By | |
| Natural sewage (50 ± 2 ℃ in laboratory) | 2400h passes through | Not anti- | Not anti- | By | |
| Natural sewage medium enlarges 100 times | 2400h passes through | ||||
| Sulfuric acid (10%) | 2400h passes through | ||||
| Hydrochloric acid (5%) | 2400h passes through | ||||
| Nitric acid (5%) | 2400h passes through | ||||
| Sodium hydroxide (5%) | 2400h passes through |
By above-mentioned coating (A) with (B), the performance project contrasting data of (C), (D), (E) shows:
1, high-chlorinated polyethylene coating and chlorine ether coating fail in the on-the-spot and breadboard soak test at natural sewage by, so be not suitable for the anticorrosive coating on sewerage steel construction surface.
Though 2, polyvinyl chloride (PVC) coating has resistant water medium performance preferably, the solids content of coating is low, and it is very thin to film, and reach the coating thickness of regulation, and its construction application number of plies is too many, has increased difficulty of construction, and is economical inadequately.
3, coating A and coating E compare, and coating E has salt spray resistance preferably, is a kind of rust-inhibiting paint, but because coating is too thick, and snappiness is poor, it is more crisp to film.According to the test performance project analysis, this coating is not suitable for the outdoor anticorrosive coating of waste water treatment project.And cross-linking highly chlorinated polyethylene solids coatings of the present invention reaches 45-50%, snappiness 1mm, and shock-resistance 50cm, 1 grade of sticking power has excellent ageing resistance, salt fog resistance and corrosion stability.
It is few that cross-linking highly chlorinated polyethylene resin paint of the present invention contains aromatic hydrocarbon solvent, and toxicity is low, and the construction application is convenient.Because hydroxyl and the isocyano on the affixture molecule on the hydroxyl highly-chlorinated polyethylene resin molecule are made the very high tridimensional network of cross-linking density, therefore, have the excellent snappiness of filming, sticking power, shock-resistant, weathering resistance and corrosion stability after the coating film forming, and transparency and mechanical property might as well.Be applicable to sewerage steel construction coating, also be applicable to be coated in the seawater, on the steel construction on the seashore or in the river.
Embodiment
The present invention is further elaborated by following examples, but does not place restrictions on scope of the present invention.
The starting material of using in following examples:
HCPE is available from Zhejiang Fenghua City Yue Loong new chemical materials company limited
The hydroxyl organosilicon acrylic resin is available from Shanghai remittance beautiful (group) two factories
Acrylic resin is available from Shanghai remittance beautiful (group) two factories
Synolac is available from Xinhua Resin Factory, Shanghai
E-12 Resins, epoxy is available from Xinhua Resin Factory, Shanghai
The TD1 affixture is available from Xinhua Resin Factory, Shanghai
The TD1 isocyanuric acid ester is available from chemical plant, Changzhou
HD1 biuret affixture is available from the chemical plant, Chongqing
260 solvents are available from the chemical plant of starting an undertaking, Shanghai
Dispersion agent, flow agent, defoamer are available from the embodiment of China auxiliary agent company limited 1: the preparation of hydroxyl HCPE
With HCPE (chlorinity 〉=65%, about molecular weight 35000) 25Kg, dimethylbenzene 20Kg, N-BUTYL ACETATE 8Kg, butyl glycol ether 7Kg mix, carry out dispersing and dissolving with 950 rev/mins, add hydroxyl organosilicon acrylic resin (hydroxyl 2.0-3.5%, viscosity is 500-600mPaS) again, disperse to stir, form the hydroxyl HCPE, product contains non-volatile matter 45 weight %, and viscosity is 400mPaS.
Embodiment 2: the preparation of hydroxyl HCPE
HCPE 25Kg, dimethylbenzene 20Kg, 260 solvent 7.5Kg, butyl glycol ether 7.5Kg are mixed, carry out dispersing and dissolving with 1000 rev/mins, add Synolac (hydroxyl 2.1%, solids content 50%) 40Kg disperses to stir, form the hydroxyl HCPE, product contains non-volatile matter 45 weight %, viscosity 350mPaS.
Embodiment 3: the preparation of hydroxyl HCPE
With HCPE 25Kg, dimethylbenzene 30Kg, propyl carbinol 5Kg, butyl glycol ether 5Kg, 260 solvent 10Kg mix, carry out dispersing and dissolving with 1100 rev/mins, adding E-12 Resins, epoxy (oxirane value 0.09-0.14eq/100g) 25Kg again disperses to stir, form the hydroxyl HCPE, product contains non-volatile matter 50 weight %, viscosity 200mPaS.
The preparation of embodiment 4 cross-linking highly chlorinated polyethylene coating
Hydroxyl HCPE 60Kg, the titanium dioxide 17Kg that embodiment 1 is made, carbon black 0.3Kg, mica powder 1Kg, process white powder 1Kg, superfine talcum powder 0.7Kg, dispersion agent 0.5Kg, flow agent 1Kg, defoamer 0.5Kg, 260 solvent 6Kg, N-BUTYL ACETATE 6Kg, butyl glycol ether 6Kg mix, 1200 rev/mins disperseed 30 minutes, carrying out sand mill grinds, fineness≤45 μ m promptly gets first component grey slurry.Then with this first component and component B TDI isocyanuric acid ester by weight 1: 0.3 ratio pack respectively, promptly get two jars cross-linking highly chlorinated polyethylene resin grey paint.Solids coatings is 45%, 1 grade of shock-resistance 50cm, snappiness 1mm, sticking power.
The preparation of embodiment 5 cross-linking highly chlorinated polyethylene coating
The green powder 4Kg of hydroxyl HCPE 55Kg, titanium dioxide 6Kg, titanium cyanines, mica powder 5Kg, process white powder 7Kg, superfine talcum powder 3Kg, dimethylbenzene 5Kg, 260 solvent 8Kg, N-BUTYL ACETATE 5Kg, defoamer 0.5Kg, flow agent 1Kg, dispersion agent 0.5Kg that embodiment 2 is made mix, 1200 rev/mins were disperseed 30 minutes, carried out sand mill and ground.Fineness≤45 μ m promptly gets first component light green slurry.Then with this first component light green slurry and component B HDI biuret affixture by weight 1: 0.3 ratio pack respectively, promptly get two jars cross-linking highly chlorinated polyethylene light green coating, solids coatings is 45%, 1 grade of shock-resistance 50cm, snappiness 1mm, sticking power.
The preparation of embodiment 6 cross-linking highly chlorinated polyethylene coating
Hydroxyl HCPE 55Kg, rust-stabilising pigment 8Kg, ferric oxide red powder 10Kg, mica powder 4Kg, superfine talcum powder 3Kg, dispersion agent 0.5Kg, flow agent 1Kg, defoamer 0.5Kg, 260 solvent 6Kg, N-BUTYL ACETATE 4Kg, dimethylbenzene 8Kg that embodiment 3 is made, 1200 rev/mins were disperseed 30 minutes, carried out sand mill and ground.Fineness≤70 μ m promptly gets the antirust rust slurry of first component.Then with the antirust rust slurry of first component and component B TDI affixture by weight 1: 0.25 ratio pack respectively.Promptly get two canned antirust rust coating of cross-linking highly chlorinated polyethylene, solids coatings is 50%, 1 grade of shock-resistant 50cm, snappiness 1mm, sticking power.
Claims (5)
1, a kind of cross-linking highly chlorinated polyethylene resin paint is characterized in that this coating comprises first, second two components, and the proportioning of constituent is as follows in the first component:
Constituent: weight (%):
Hydroxyl HCPE 50-60
Pigment 10-20
Filler 2-15
Dispersion agent 0.2-0.5
Flow agent 0.5-1
Defoamer 0.3-0.5
Hydroxyl HCPE described in the solvent 15-25 first component is made up of with weight % following thing: HCPE 25-30, hydroxy-containing resin 30-40, solvent 30-45;
Component B is selected from following a kind of:
The TD1 affixture; The TD1 isocyanuric acid ester; HD1 biuret affixture.
2, by the described cross-linking highly chlorinated polyethylene resin paint of claim 1, it is characterized in that filler described in the first component is two kinds or three kinds that are selected from mica powder, process white powder, the talcum powder.
3,, it is characterized in that described hydroxy-containing resin is a kind of in hydroxyl organosilicon acrylic resin, acrylic resin, Synolac, the Resins, epoxy by the described cross-linking highly chlorinated polyethylene resin paint of claim 1.
4, by the described cross-linking highly chlorinated polyethylene resin paint of claim 1, it is characterized in that described solvent be in dimethylbenzene, 260 solvents, N-BUTYL ACETATE, butyl glycol ether, the propyl carbinol more than three kinds or three kinds.
5, by the production method of the described cross-linking highly chlorinated polyethylene resin paint of claim 1, it is characterized in that the step of this method is as follows:
The first step, at first form the hydroxyl HCPE by the constituent proportioning weighing of the described hydroxyl HCPE of claim 1, again by proportioning weighing, mixing, the dispersion of the component of first described in the claim 1 constituent, grind, make versicolor mill base, be the first component;
In second step, select a kind of for component B in TD1 affixture, TD1 isocyanuric acid ester, the HD1 biuret affixture for use;
The 3rd step, with first component and component B with weight proportion 1: 0.25-0.3 packs respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001165194A CN1137948C (en) | 2000-06-14 | 2000-06-14 | Cross-linking highly chlorinated polyethylene resin paint and its production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001165194A CN1137948C (en) | 2000-06-14 | 2000-06-14 | Cross-linking highly chlorinated polyethylene resin paint and its production process |
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| CN1278541A CN1278541A (en) | 2001-01-03 |
| CN1137948C true CN1137948C (en) | 2004-02-11 |
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| CNB001165194A Expired - Fee Related CN1137948C (en) | 2000-06-14 | 2000-06-14 | Cross-linking highly chlorinated polyethylene resin paint and its production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103374266A (en) * | 2013-06-28 | 2013-10-30 | 南京市荣达树脂有限公司 | Resin coating |
| CN103773130A (en) * | 2014-01-15 | 2014-05-07 | 芜湖市宝艺游乐科技设备有限公司 | Pyrophyllite and bone black blended and modified heat dissipating coating material |
| CN104046221A (en) * | 2014-06-26 | 2014-09-17 | 无锡市崇安区科技创业服务中心 | Oil-resistant anti-rust paint and preparation method thereof |
| CN109517511A (en) * | 2018-11-15 | 2019-03-26 | 湖南哲龙科技有限公司 | A kind of photosensitive drums formulation for coating material of cross-linkable solidifying |
| CN114702884A (en) * | 2022-05-06 | 2022-07-05 | 重庆三峡油漆股份有限公司 | IPN polyvinyl chloride lead fluor anticorrosive paint |
| CN115572501A (en) * | 2022-11-04 | 2023-01-06 | 圣地(上海)高分子材料有限公司 | Preparation method of anti-corrosion sun-shading color steel plate |
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