CN102863854A - High chlorinated potyethlene anti-corrosive paint and preparation method thereof - Google Patents

High chlorinated potyethlene anti-corrosive paint and preparation method thereof Download PDF

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Publication number
CN102863854A
CN102863854A CN2012103957608A CN201210395760A CN102863854A CN 102863854 A CN102863854 A CN 102863854A CN 2012103957608 A CN2012103957608 A CN 2012103957608A CN 201210395760 A CN201210395760 A CN 201210395760A CN 102863854 A CN102863854 A CN 102863854A
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high chlorinated
chlorinated polyethylene
corrosive paint
resins
epoxy
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CN102863854B (en
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王兴民
庞天磊
王福忠
王从浩
段洪东
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SHANDONG LIAOCHENG QILU SPECIAL PAINT CO Ltd
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SHANDONG LIAOCHENG QILU SPECIAL PAINT CO Ltd
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Abstract

The invention relates to heat-resistant high chlorinated potyethlene anti-corrosive paint and a preparation method thereof and belongs to the field of anti-corrosive paint. The paint comprises, by weight, 10-40 parts of high chlorinated polyvinyl chloride, 5-35 parts of epoxide resin, 5-25 parts of acrylic resin containing fluorine, 10-30 parts of fillers, 0.1-1 part of pigment, 0.05-0.5 part of dispersant, 0.05-0.5 part of plasticizer, 0.1-0.5 part of defoaming agent and 20-60 parts of solvent. The paint can be used at the temperature of 50-80 DEG C. The paint has the advantages of being good in heat resistance, corrosion resistance, coating and processability.

Description

A kind of high chlorinated polyethylene anti-corrosive paint and preparation method thereof
Technical field
The invention belongs to the antifouling paste field, be specifically related to a kind of thermotolerance high chlorinated polyethylene anti-corrosive paint and preparation method thereof.
Background technology
Highly-chlorinated polyethylene, claim again the HCPE resin, cl content surpasses 60%, because molecular structure does not contain two keys, a large amount of chlorine atoms are random distribution, therefore have good weathering resistance, ozone resistance, heat-resistant aging, flame resistivity, chemical proofing and oil-proofness.
At present, along with holding of Copenhagen climate Conference, the demand that the whole world limits greenhouse-gas emissions is accelerated increasingly, and high chlorinated polyethylene anti-corrosive paint has substituted chlorinated rubber coating gradually.Protective system take highly-chlorinated polyethylene as main raw material has following characteristic: good flame retardant resistance, fungicidal properties; Excellent antiseptic property; Weathering resistance is better; Better with the consistency of other resins; Have good workability; Environmental protection.Because above-mentioned good characteristic, high chlorinated polyethylene anti-corrosive paint is widely used in the anticorrosion of the facilities such as chemical industry equipment and pipeline, ocean, naval vessel, sewage disposal, and Application Areas is very wide.But because the highly-chlorinated polyethylene thermotolerance is bad, heat resisting temperature generally is no more than 60 ℃, so the thermotolerance of high chlorinated polyethylene anti-corrosive paint is relatively poor, therefore, improve the thermotolerance of high chlorinated polyethylene anti-corrosive paint, widen the scope of application of coating, have great importance.
Summary of the invention
For the problems referred to above, the present invention is by blending and modifying, finally made a kind of can be at the 50-80 ℃ of lower high chlorinated polyethylene anti-corrosive paint that is formed by compound resin that uses.
High chlorinated polyethylene anti-corrosive paint of the present invention, by weight, raw material consists of: high chlorinated polyvinyl chloride 10-40 part, Resins, epoxy 5-35 part, fluoroacrylic resin 5-25 part, filler 10-30 part, pigment 0.1-1 part, dispersion agent 0.05-0.5 part, softening agent 0.05-0.5 part, defoamer 0.1-0.5 part, solvent 20-60 part.
High chlorinated polyvinyl chloride molecular weight of the present invention is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.Molecular weight and chlorinity be for affecting two main factors of highly-chlorinated polyethylene thermostability, molecular weight be 1.0w-3.5w, chlorinity be the highly-chlorinated polyethylene of 60%-65% have preferably thermostability and also cost not high.When high chlorinated polyvinyl chloride consumption was excessive, other raw material relative contents will reduce, thereby caused the poor heat resistance of coating; When consumption was too small, the erosion resistance of coating was not good, so its consumption is 10-40 part.
Resins, epoxy of the present invention is Resins, epoxy E51 or Resins, epoxy E55.Resins, epoxy E51 and Resins, epoxy E55 belong to bisphenol A type epoxy resin, contain larger rigid radical phenyl ring, and oxirane value is higher, and molecular chain is shorter, so thermotolerance is better, and also better with the binding property of material.Its consumption is crossed the erosion resistance that senior general reduces coating, and consumption hour then reduces the thermotolerance of coating and coating with the binding property of substrate, so the consumption that the present invention adopts is 5-35 part.
Fluoroacrylic resin of the present invention is synthetic by one or both monomer copolymerizations in trifluoroethyl methacrylate, vinylformic acid hexafluoro butyl ester, the dodecafluoroheptyl methacrylate, when only adopting wherein a kind of monomer, and this monomer generation autohemagglutination.Its synthetic method adopts the common technology of this area to get final product.The present invention adopts fluoroacrylic resin to have following advantage: 1, fluoroacrylic resin can improve gloss and the hardness of paint film, improves weathering resistance and protects the light tint retention; 2, the thermotolerance of fluoroacrylic resin is relatively good, resistance toheat that can Effective Raise coating; 3, because it is acrylic resin, thus higher film forming properties had, better with other resin compatibles.The contriver gropes to find that the fluoroacrylic resin consumption is crossed the erosion resistance that senior general reduces coating through test of long duration, consumption hour then reduces thermotolerance and the film-forming properties of coating, so the consumption of fluoroacrylic resin is 5-25 part among the present invention.
In order to reduce manufacturing cost, the present invention adds wherein as filler with titanium dioxide or zinc powder or its mixture, and amount of filler is crossed the performance that conference reduces coating; The too small cost of manufacture that then increases coating of consumption, therefore, the add-on of filler is 10-30 part.
In order further to strengthen the antiseptic property of coating of the present invention, the present invention adds zinc phosphate or aluminium triphosphate or its mixture as pigment.The pigment add-on is crossed conference increases cost, and the too small coating that then makes of consumption can't be painted, so the add-on of pigment of the present invention is 0.1-1 part.
Solvent of the present invention is selected high chlorinated polyvinyl chloride, Resins, epoxy and fluoroacrylic resin solvability preferably toluene or dimethylbenzene or N-BUTYL ACETATE or its mixture.To be easy to film forming and film forming thickness suitable for the coating that guarantees to make at last, and the add-on of solvent is 20-60 part.
Dispersion agent of the present invention is selected various raw material consistencies polyethylene wax preferably, and consumption is 0.05-0.5 part.Its consumption is excessive, causes easily the grain diameter of system to reduce, and is unfavorable for monolithic stability; The too small resin dispersion difficult that then makes in the raw material of consumption.
Described softening agent is clorafin or dibutyl phthalate or its mixture, and consumption is 0.05-0.5 part, both can stronger plasticization effect be arranged to whole system, strengthened coating intensity, be conducive to again the construction.
In order to reach defoaming effect, the defoamer that the present invention adopts is BYK065, and consumption is 0.1-0.5 part.
Through the research of contriver's test of long duration, find when high chlorinated polyvinyl chloride 15-25 part, Resins, epoxy 5-15 part, fluoroacrylic resin 5-15 part, filler 15-25 part, pigment 0.3-0.6 part, dispersion agent 0.1-0.2 part, softening agent 0.1-0.3 part, defoamer 0.1-0.3 part, during solvent 30-45 part, the better effects if of the coating that makes.
High chlorinated polyethylene anti-corrosive paint of the present invention, its preparation method is:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in fluoroacrylic resin, add solvent and dispersion agent, carry out pre-grinding; Wherein, the mass ratio of fluoroacrylic resin and solvent is 1:1-3:1;
(3) add residual solvent in the Resins, epoxy and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and filler mixing, then adding defoamer, softening agent and pigment grind to fineness is 40 μ m, gets product.
Because coating finally will be coated on the applicator, the coating that forms when coating particles is excessive can be very coarse, the appearance of coat performance is reduced and surface irregularity, thereby can adsorb some other materials at coatingsurface, and then the corrosion resistance nature of reduction material, it is that 40 μ m can its coating of Effective Raise and appearance of coat performance that the present invention finally is ground to fineness with described high chlorinated polyethylene anti-corrosive paint.
In sum, add among the present invention and have the thermotolerance that heat-resisting fluorinated acrylate resin improves coating, add simultaneously Resins, epoxy and improve coating with the bonding strength of coated material, under the effect of cooperatively interacting of various raw materials, finally making can be at 50-80 ℃ of lower use, high chlorinated polyethylene anti-corrosive paint with higher thermotolerance, splendid preservative property, good coating and excellent processibility.
Embodiment
In order to understand better technical scheme of the present invention, below further be described in detail by specific embodiment.
Embodiment 1
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 10 parts of high chlorinated polyvinyl chlorides, 35 parts of Resins, epoxy E51,15 parts of polymethyl acrylic acid trifluoro ethyl esters, 19 parts of titanium dioxides, 0.5 part of zinc phosphate, 0.15 part of polyethylene wax, 0.05 part of clorafin, 0.3 part of defoamer BYK065,20 parts of toluene.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in the polymethyl acrylic acid trifluoro ethyl ester, add toluene and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polymethyl acrylic acid trifluoro ethyl ester and toluene is 1:1;
(3) add residual toluene in the Resins, epoxy E51 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and titanium dioxide mixing, then adding defoamer BYK065, clorafin and zinc phosphate, to be ground to fineness be 40 μ m, gets product.
Embodiment 2
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 40 parts of high chlorinated polyvinyl chlorides, 5 parts of Resins, epoxy E51,5 parts of polyacrylic acid hexafluoro butyl esters, 10 parts of zinc powders, 0.6 part of aluminium triphosphate, 0.05 part of polyethylene wax, 0.15 part of clorafin, 0.2 part of defoamer BYK065,39 parts of toluene.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in polyacrylic acid hexafluoro butyl ester, add toluene and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polyacrylic acid hexafluoro butyl ester and toluene is 1:1;
(3) add residual toluene in the Resins, epoxy E51 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and zinc powder mixing, then adding defoamer BYK065, clorafin and aluminium triphosphate, to be ground to fineness be 40 μ m, gets product.
Embodiment 3
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 15 parts of high chlorinated polyvinyl chlorides, 5 parts of Resins, epoxy E55,5 parts of polymethyl acrylic acid ten difluoro heptyl esters, 15 parts of titanium dioxides, 0.3 part of zinc phosphate, 0.1 part of polyethylene wax, 0.5 part of clorafin, 0.1 part of defoamer BYK065,59 parts of dimethylbenzene.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in polymethyl acrylic acid ten difluoro heptyl esters, add dimethylbenzene and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polymethyl acrylic acid ten difluoro heptyl esters and dimethylbenzene is 1:1;
(3) add residue dimethylbenzene in the Resins, epoxy E55 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and titanium dioxide mixing, then adding defoamer BYK065, clorafin and zinc phosphate, to be ground to fineness be 40 μ m, gets product.
Embodiment 4
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 25 parts of high chlorinated polyvinyl chlorides, 15 parts of Resins, epoxy E51,5 parts of polymethyl acrylic acid trifluoro ethyl esters-vinylformic acid hexafluoro butyl ester copolymer resins, 30 parts of zinc powders, 1 part of aluminium triphosphate, 0.2 part of polyethylene wax, 0.3 part of dibutyl phthalate, 0.5 part of defoamer BYK065,33 parts of dimethylbenzene.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in polymethyl acrylic acid trifluoro ethyl ester-vinylformic acid hexafluoro butyl ester copolymer resins, add dimethylbenzene and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polymethyl acrylic acid trifluoro ethyl ester-vinylformic acid hexafluoro butyl ester copolymer resins and dimethylbenzene is 1:1;
(3) add residue dimethylbenzene in the Resins, epoxy E51 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and zinc powder mixing, then adding defoamer BYK065, dibutyl phthalate and aluminium triphosphate, to be ground to fineness be 40 μ m, gets product.
Embodiment 5
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 10 parts of high chlorinated polyvinyl chlorides, 9 parts of Resins, epoxy E55,25 parts of polymethyl acrylic acid trifluoro ethyl esters-dodecafluoroheptyl methacrylate copolymer resins, 25 parts of titanium dioxides, 0.1 part of zinc phosphate, 0.5 part of polyethylene wax, 0.1 part of dibutyl phthalate, 0.3 part of defoamer BYK065,30 parts of N-BUTYL ACETATEs.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in polymethyl acrylic acid trifluoro ethyl ester-dodecafluoroheptyl methacrylate copolymer resins, add N-BUTYL ACETATE and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polymethyl acrylic acid trifluoro ethyl ester-dodecafluoroheptyl methacrylate copolymer resins and N-BUTYL ACETATE is 3:1;
(3) add the residue N-BUTYL ACETATE in the Resins, epoxy E55 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding HCPE and titanium dioxide mixing, then adding defoamer BYK065, dibutyl phthalate and zinc phosphate, to be ground to fineness be 40 μ m, gets product.
Embodiment 6
A kind of high chlorinated polyethylene anti-corrosive paint, by weight, raw material consists of: 23 parts of high chlorinated polyvinyl chlorides, 15 parts of Resins, epoxy E55,5 parts of polyacrylic acid hexafluoro butyl esters-dodecafluoroheptyl methacrylate copolymer resins, 10 parts of zinc powders, 1 part of aluminium triphosphate, 0.2 part of polyethylene wax, 0.3 part of dibutyl phthalate, 0.5 part of defoamer BYK065,45 parts of N-BUTYL ACETATEs.
Described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
Its concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in polyacrylic acid hexafluoro butyl ester-dodecafluoroheptyl methacrylate copolymer resins, add N-BUTYL ACETATE and polyethylene wax, carry out pre-grinding; Wherein, the mass ratio of polyacrylic acid hexafluoro butyl ester-dodecafluoroheptyl methacrylate copolymer resins and N-BUTYL ACETATE is 2:1;
(3) add the residue N-BUTYL ACETATE in the Resins, epoxy E55 and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding HCPE and zinc powder mixing, then adding defoamer BYK065, dibutyl phthalate and aluminium triphosphate, to be ground to fineness be 40 μ m, gets product.
The salient features contrast of the prepared high chlorinated polyethylene anti-corrosive paint of embodiment of the invention 1-3 and common high-chlorinated polyethylene coating is as follows:
The contrast of table 1 coating property
Figure BDA0000227170241
As can be seen from the above table: the resistance to elevated temperatures of the high chlorinated polyethylene anti-corrosive paint that the present invention makes significantly improves than the resistance to elevated temperatures of common high-chlorinated polyethylene coating, can under 50-80 ℃ of condition, use, has higher thermotolerance, greatly expanded the scope of application of coating, and coating is with the also to some extent increase of bonding strength of coated material.

Claims (10)

1. high chlorinated polyethylene anti-corrosive paint, it is characterized in that: by weight, raw material consists of: high chlorinated polyvinyl chloride 10-40 part, Resins, epoxy 5-35 part, fluoroacrylic resin 5-25 part, filler 10-30 part, pigment 0.1-1 part, dispersion agent 0.05-0.5 part, softening agent 0.05-0.5 part, defoamer 0.1-0.5 part, solvent 20-60 part.
2. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: by weight, raw material consists of: high chlorinated polyvinyl chloride 15-25 part, Resins, epoxy 5-15 part, fluoroacrylic resin 5-15 part, filler 15-25 part, pigment 0.3-0.6 part, dispersion agent 0.1-0.2 part, softening agent 0.1-0.3 part, defoamer 0.1-0.3 part, solvent 30-45 part.
3. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: described high chlorinated polyvinyl chloride molecular weight is 1.0w-3.5w, and wherein the quality percentage composition of chlorine is 60%-65%.
4. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: described Resins, epoxy is Resins, epoxy E51 or Resins, epoxy E55.
5. high chlorinated polyethylene anti-corrosive paint according to claim 1 is characterized in that: described fluoroacrylic resin is synthetic by one or both monomer copolymerizations in trifluoroethyl methacrylate, vinylformic acid hexafluoro butyl ester, the dodecafluoroheptyl methacrylate.
6. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: described filler is titanium dioxide or zinc powder or its mixture.
7. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: described pigment is zinc phosphate or aluminium triphosphate or its mixture.
8. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: described solvent is toluene or dimethylbenzene or N-BUTYL ACETATE or its mixture;
Described dispersion agent is polyethylene wax;
Described softening agent is clorafin or dibutyl phthalate or its mixture;
Described defoamer is BYK065.
9. high chlorinated polyethylene anti-corrosive paint according to claim 1, it is characterized in that: the high chlorinated polyethylene anti-corrosive paint fineness is 40 μ m.
10. prepare the method for high chlorinated polyethylene anti-corrosive paint claimed in claim 1, it is characterized in that: concrete steps comprise:
(1) take by weighing each raw material by proportioning, for subsequent use;
(2) in fluoroacrylic resin, add solvent and dispersion agent, carry out pre-grinding; Wherein, the mass ratio of fluoroacrylic resin and solvent is 1:1-3:1;
(3) add residual solvent in the Resins, epoxy and carry out pre-grinding;
(4) with after above-mentioned two kinds of pre-grinding mixing of materials, to wherein adding highly-chlorinated polyethylene and filler mixing, then adding defoamer, softening agent and pigment grind to fineness is 40 μ m, gets product.
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