CN103031041A - High-solid epoxy expansion type fireproof and heat insulation coating and preparation method thereof - Google Patents
High-solid epoxy expansion type fireproof and heat insulation coating and preparation method thereof Download PDFInfo
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Abstract
The invention provides a high-solid epoxy expansion type fireproof and heat insulation coating, which comprises a component A and a component B, wherein the component A comprises modified epoxide resin, coloring pigment, fire retardant filler, addition agent and heat insulation filler; and the component B comprises liquid solvent-free epoxy curing agent. A coating layer prepared from the heat insulation coating meets the fireproof protection performance in a hydrocarbon fire, and meanwhile the prepared coating layer has good application property, good decorative effect, good coating layer compatibility, chemical resistance, abrasive resistance, adhesive force, shock resistance and antiseptic property. Meanwhile, the coating layer has good heat preservation and heat insulation performance and can provide heat insulation protection for various kinds of storage tanks, facilities and equipment.
Description
Technical field
The present invention relates to a kind of high-solid epoxy resin expansion fire-proof thermal insulating coating; filming of this coating has lower thermal conductivity; good effect of heat insulation, anti-oil property, antiseptic property and flameproof protection performance; can withstand long term exposure crude oil, the oil products such as aviation kerosene, lubricating oil, gasoline and not being destroyed; can be supporting with other corrosion-resistant epoxy paints and polyurethane finish, coating is not used as the heat insulating and corrosion coating when having presence of fire.After fire occurs, be subjected to the heat energy rapid expansion to form the very low carburization zone of thermal conductivity, intercept flame high temperature, prolong the fire endurance of protected base material.This coating can be used for storage tank, the pipeline of petrochemical plant, chemical plant, refinery etc., heat-insulation and heat-preservation and the flameproof protection of steel construction.
Background technology
Frie retardant coating is widely used in industries such as chemical industry, petrochemical industry, oil refining, protection facility, the safety of equipment in fire, reduce fire losses, the frie retardant coating that adopts at present has non-expansion type and expanded polystyrene veneer two classes, the Non-expansive fireproof paint coating is very thick, and construction is complicated, constructs affected by environment larger, exist sticking power bad, the defective such as decorative effect is poor; The expanding fire-proof paint easy construction, decorative effect is better, but not oil resistant product and the chemical mediator corrosion of traditional acrylic acid or the like expanding fire-proof paint, under the corrosion atmospheric environment, exist fire resistance to lose efficacy and work-ing life short, the defective such as fire resistance is poor in hydrocarbon fire; Expanded polystyrene veneer epoxy frie retardant coating is used by increasing petroleum and chemical industry enterprise at present because having in good chemical resistance, mechanical property, antiseptic property, the hydrocarbon fire characteristics such as fire resistance.Yet the storage tank to the ask for something thermal insulation protection; such as alkene; alkynes; gasoline; the storage tanks such as methyl alcohol; these traditional expanding fire-proof paints can not play good heat-blocking action; at sun exposure; under the hot climate condition; coating can not intercept the heat in the atmosphere; cause storage medium temperature rising in the storage tank; potential safety hazard and material loss have been increased; for the temperature that reduces the storage tank medium need to be carried out thermal insulation protection measure or cooling processing to these storage tanks; by making external thermal insulation; the methods such as extra heat insulating coat or spray water of brushing reduce medium temperature in the storage tank, and these methods have all caused increase and the wasting of resources of enterprise investment operation cost.
Document and patent about epoxy intumescent fire retardant paint are more, such as publication CN101191033A " intumescing, multi-component epoxide resin-coating composition of fire prevention usefulness and uses thereof ", publication CN1876740A " solvent-free expansion type fire-proof epoxy coating and preparation method thereof " etc. all belongs to epoxy intumescent fire retardant paint, but the coating thermal conductivity in these inventions is high, under physical environment the facilities such as storage tank is not all had incubation and thermal insulation function.The heat-insulating heat-preserving material that epoxy intumescent fire retardant paint is prepared into low heat conductivity is a difficult problem of this technical field, introduces behind some lagging materials physical and mechanical properties to coating, fire endurance etc. in the coating and can bring great negative impact.
Summary of the invention
The objective of the invention is to prepare a kind of high-solid epoxy resin expansion fire-proof thermal insulating coating; coating is in satisfying hydrocarbon fire in the flameproof protection performance; the paint coatings of preparation has good application property, decorative effect, coating matching capacity, chemical-resistant, wear resistance, sticking power, shock resistance and antiseptic property; the coating of this coating has good thermal and insulating performance concurrently simultaneously; can provide thermal insulation protection for multiple storage tank and facility, equipment; this coating is a kind of high solid coating, meets the development trend of environmental regulation.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: the first component is to make mill base with the grinding plant grinding after modified epoxy, tinting pigment, fire-retardant filler, the auxiliary agent mixing, and in this mill base, add thermal insulating filling, the component that obtains after stirring.The second component is liquid non-solvent epoxy solidifying agent.Gross weight meter modified epoxy content based on the first component in the first component is 10 ~ 50wt%, tinting pigment 5 ~ 30wt %, fire-retardant filler 0 ~ 60wt %, auxiliary agent 1 ~ 5wt %, thermal insulating filling 1 ~ 10wt %.Join the add-on of coating with lacquer solidifying agent when using and be 10 ~ 30% of first composition weight.
Modified epoxy among the present invention comprises at least a Resins, epoxy and at least a epoxy active diluent and at least a acrylic resin, and its preparation process may further comprise the steps: (1) will comprise the mixed assembly of the component of Resins, epoxy, epoxy active diluent and acrylic resin; (2) will mix the step of the product experience decompression desolvation after the assembly.Epoxy active diluent is selected from one or more the combination in butylglycidyl ether, tertiary carbonic acid glycidyl ester, cresyl glycidyl ether, polypropylene glycol diglycidyl ether, polyethyleneglycol diglycidylether, iso-octyl glycidyl ether, the trimethylphenylmethane base glycidyl ether.Resins, epoxy is one or more the combination that is selected among bisphenol A type epoxy resin, bisphenol f type epoxy resin, novolac epoxy such as E-20, E-51, E-44, the F-51.Acrylic resin is one or more the thermoplasticity solvent type acrylic resins that form by radical polymerization in methacrylic acid, methacrylic methyl esters, butyl acrylate, vinylbenzene, Propylene glycol monoacrylate, tertiary ethylene carbonate, vinyl acetate between to for plastic, vinyl cyanide, ethyl propenoate, the Isooctyl acrylate monomer.When preparation modified epoxy component, preferably acrylic resin being made into solid content is the solution use of 60wt%, and solvent is preferably N-BUTYL ACETATE.Gross weight meter based on modified epoxy in the modified epoxy comprises Resins, epoxy 40 ~ 80%, epoxy active diluent 5 ~ 30%, and acrylic resin accounts for 5 ~ 30%, solvent 1% ~ 5%.
The solid content of modified epoxy is 95 ~ 99% among the present invention, and said solid content refers to herein: the total mass of other composition beyond desolventizing accounts for the per-cent of the gross weight of all the components.
The oxirane value of modified epoxy is between 0.20 ~ 0.50.Facts have proved, oxirane value be modified epoxy between 0.20 ~ 0.50 with the epoxy hardener film-forming, can form the good coating of physical and mechanical properties and chemical resistance.
Resins, epoxy and epoxy active diluent have been adopted when preparing modified epoxy among the present invention, wherein epoxy active diluent viscosity is lower, purpose is to improve Resins, epoxy with the compatibility of acrylic resin and reduce resin viscosity, and Resins, epoxy improves the oxirane value of modified epoxy.
Preparation has added acrylic resin during modified epoxy among the present invention, purpose be improve fireproof paint coating when being foamed into charcoal the carburization zone height and the compactness of charring layer, the fire resistance of reinforced epoxy frie retardant coating.
Modified epoxy is prepared from by following methods at least among the present invention: at first prepare the solvent-borne type thermoplastic acrylic resin by solvent method, after qualified epoxy active diluent is added in the reactor, be warming up to 120 ℃ ~ 125 ℃, under reduced pressure, remove the solvent (N-BUTYL ACETATE) in the acrylic resin soln, be not less than 95% to solid content, add again Resins, epoxy and mix.
Among the modified epoxy preparation technology of the present invention, epoxy active diluent and Resins, epoxy feed intake mass ratio between 0.1 ~ 0.5.Facts have proved, in the modified epoxy, the epoxy active diluent consumption increases, and the modified epoxy reduced viscosity be fit to preparation high-solid level expanded polystyrene veneer epoxy frie retardant coating, but physicochemical property descends
Among the modified epoxy preparation technology of the present invention, acrylic resin (press solid constituent calculate) with the weight ratio of the gross weight of Resins, epoxy and epoxy active diluent between 0.1 ~ 0.5.Facts have proved, obviously improved the fire resistance of filming after introducing acrylic resin, but consumption when too much coating stability in storage, coating flame resistant deflation performance and antiseptic property be subject to impact.
Fire-retardant filler among the present invention is comprised of in ammonium polyphosphate, tetramethylolmethane, dipentaerythritol, tripentaerythritol, trimeric cyanamide, antimonous oxide, aluminium hydroxide, zinc borate, magnesium hydroxide, the phosphoric acid ester one or more.Effect is to make the expanded foamed one-tenth charcoal of coating and fire-retardant.
Thermal insulating filling among the present invention is comprised of in aluminum silicate fiber, glass fibre, carbon fiber, sepiolite cashmere, vacuum ceramic microballon, hollow glass micropearl, the closed perlite one or more, effect is the thermal conductivity that reduces coating, improves the heat insulating effect of coating.
Among the high-solid epoxy resin expansion fire-proof thermal insulating coating preparation technology of the present invention, thermal insulating filling accounts for 1 ~ 10% of coating dry film amount.Facts have proved, obviously improved the heat-proof quality of filming behind the introducing thermal insulating filling, but on coating application performance, fire resistance and physical and mechanical properties impact obviously.
Description of drawings
Accompanying drawing is modified epoxy preparation of the present invention and coating first component preparation technology schema.
Embodiment
In reaction flask, add solvent, be warming up to 85 ℃; Mixture 2.5 ~ the 3h that drips Acrylic Acid Monomer and initiator by dropping funnel drips off, insulation 2h; Add initiator, add another part initiator behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge is for subsequent use.
In reaction flask, add the solvent type acrylic resin for preparing, and a kind of epoxy active diluent, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent (N-BUTYL ACETATE) in the mixture, to the solid content of mixture 〉=95%, a kind of Resins, epoxy thing of qualified rear adding stirs 30min and mixes, and is for subsequent use.Get above-mentioned modified epoxy, add tinting pigment, fire-proof packing, auxiliary agent grinding preparation mill base, after being ground to below 80 microns, fineness adds thermal insulating filling, stir, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the component B that first component and non-solvent epoxy solidifying agent form is joined lacquer and is used.
Embodiment 1
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 65g, vinylformic acid 5g, methyl methacrylate 55g, vinylbenzene 25g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 250g, add polyethyleneglycol diglycidylether 80g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 270g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 50g, ammonium polyphosphate 140g, dipentaerythritol 20g, trimeric cyanamide 40, aluminium hydroxide 35g mix, under agitation add vacuum ceramic microballon 7.5g, aluminosilicate short fiber 7.5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance: viscosity (stormer viscosity meter) 105KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 25mg; Sticking power (pull open and send out) 5.2MPa; Coating thermal conductivity 0.19W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability coats with lacquer after half a year and occurs obvious demixing phenomenon in the liquid; Coating fire resistance: fire endurance 40min.。
Embodiment 2
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, vinylbenzene 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 250g, add polyethyleneglycol diglycidylether 80g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 270g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 50g, ammonium polyphosphate 140g, dipentaerythritol 20g, trimeric cyanamide 40, aluminium hydroxide 35g mix, under agitation add vacuum ceramic microballon 7.5g, aluminosilicate short fiber 7.5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance: viscosity (stormer viscosity meter) 97KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 29mg; Sticking power (pull open and send out) 5.1MPa; Coating thermal conductivity 0.18W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability coats with lacquer after half a year and occurs obvious demixing phenomenon in the liquid; Coating fire resistance: fire endurance 45min.
Embodiment 3
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, vinylbenzene 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 250g, add polypropylene glycol diglycidyl ether 60g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 290g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 50g, ammonium polyphosphate 170g, dipentaerythritol 20g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 10g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance: viscosity (stormer viscosity meter) 110KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 50mg; Sticking power (pull open and send out) 3.9MPa; Coating thermal conductivity 0.11W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability: obvious demixing phenomenon occurs in the lacquer liquid after half a year; Film coated surface is coarse; Coating fire resistance: fire endurance 70min.
Embodiment 4
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, vinylbenzene 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 200g, add polypropylene glycol diglycidyl ether 100g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 300g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 45g, ammonium polyphosphate 170g, dipentaerythritol 20g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance: viscosity (stormer viscosity meter) 105KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 30mg; Sticking power (pull open and send out) 5.1MPa; Coating thermal conductivity 0.11W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability coats with lacquer after half a year and occurs obvious demixing phenomenon in the liquid; Film coated surface is smooth; Coating fire resistance: fire endurance 65min.
Embodiment 5
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, Propylene glycol monoacrylate 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 220g, add polypropylene glycol diglycidyl ether 110g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 270g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, carbon black 6g, ammonium polyphosphate 160g, dipentaerythritol 30g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance: viscosity (stormer viscosity meter) 105KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 29mg; Sticking power (pull open and send out) 5.1MPa; Coating thermal conductivity 0.11W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability: coat with lacquer the obvious demixing phenomenon of appearance in the liquid after 1 year; Film coated surface is smooth; Coating fire resistance: fire endurance 66min.
Comparative Examples 1
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, Propylene glycol monoacrylate 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 220g, add poly-propyl alcohol and glycidyl ether 110g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 270g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 after above-mentioned modified epoxy 100g, carbon black 6g, ammonium polyphosphate 160g, dipentaerythritol 30g, trimeric cyanamide 50, aluminium hydroxide 30g mix and micron obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance, and contrast with embodiment 5: viscosity, petrol-resistance, water tolerance, wear resistance all do not have considerable change; Sticking power (pull open and send out) is increased to 6.7MPa; Fire endurance 69min; The coating thermal conductivity rises to 0.83W/ (mK), function of heat insulation descends obviously, apply respectively the coating of 2mm embodiment 5 and embodiment 6 preparations on two 1L iron flask surfaces, with the coated iron flask water-lute of packing into, place and be exposed to the sun in the sun 6 hours, measure the temperature of water in the iron flask, the temperature of water rises 0.5 ℃ in the iron flask of coating embodiment 5 coating, and the temperature of water rises 19 ℃ in the iron flask of coating embodiment 6 coating.
Comparative Examples 2
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, vinylbenzene 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 200g, add polypropylene glycol diglycidyl ether 150g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 250g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 45g, ammonium polyphosphate 170g, dipentaerythritol 20g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance, and compare with embodiment 4: add too much polypropylene glycol diglycidyl ether the physicochemical property of filming is descended obviously, but fire resistance is had no significant effect, coating has lower viscosity.Viscosity (stormer viscosity meter) 60KU; Petrol-resistance: the 2mm 10d that films films and feels like jelly; Water tolerance: the 2mm 3d that films films without unusual; Wear resistance (500g/500r) 60mg; Sticking power (pull open and send out) 2.5MPa; Coating thermal conductivity 0.11W/ (mK); The 2mm salt spray resistance 1000h foaming of filming of filming; Package stability coats with lacquer after half a year and occurs obvious demixing phenomenon in the liquid; Film coated surface is smooth; Coating fire resistance: fire endurance 67min.
Comparative Examples 3
Extracting epoxy resin 300g adds polypropylene glycol diglycidyl ether 100g, stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned Resins, epoxy 100g, titanium dioxide 45g, ammonium polyphosphate 170g, dipentaerythritol 20g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance, and compare with embodiment 4: the fire resistance of filming when not adding acrylic resin in the modified resin obviously descends.Viscosity (stormer viscosity meter) 97KU; Petrol-resistance: the 2mm 30d that films films without unusual; Water tolerance: the 2mm 7d that films films without unusual; Wear resistance (500g/500r) 15mg; Sticking power (pull open and send out) 7.1MPa; Coating thermal conductivity 0.13W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability coats with lacquer after 1 year and does not occur obvious demixing phenomenon in the liquid; Film coated surface is smooth; Coating fire resistance: fire endurance 20min.
Comparative Examples 4
In reaction flask, at first add N-BUTYL ACETATE 100g, be warming up to 85 ℃; Drip the mixture of Acrylic Acid Monomer and initiator benzoyl peroxide by dropping funnel, wherein butyl acrylate 35g, tertiary ethylene carbonate 35g, vinylformic acid 5g, vinyl acetate between to for plastic 30g, methyl methacrylate 25g, vinylbenzene 20g, benzoyl peroxide 1.5g, 2.5 ~ 3h drips off, insulation 2h; Add initiator 0.15g, add another part initiator 0.15g behind the insulation 1h; Be warming up to 95 ℃ of insulations 2 hours, cooling discharge, for subsequent use.Get aforesaid propylene acid resin solution 200g, add polypropylene glycol diglycidyl ether 50g, be warming up to 120 ~ 125 ℃ of decompressions and remove solvent in the mixture, to the solid content of mixture 〉=95%, qualified rear adding Resins, epoxy 150g stirs 30min and mixes, and discharging is for subsequent use.Get and be ground to fineness≤80 micron after above-mentioned modified epoxy 100g, titanium dioxide 45g, ammonium polyphosphate 170g, dipentaerythritol 20g, trimeric cyanamide 50, aluminium hydroxide 30g mix, under agitation add vacuum ceramic microballon 10g, aluminosilicate short fiber 5g after qualified, high-speed stirring is even, obtain high-solid epoxy resin expansion fire-proof thermal insulating coating first component, the proportioning of first component and 0115 polymeric amide is weight ratio 8:1.
Test coating property and film performance, and compare with embodiment 4: the fire resistance of filming when adding too much acrylic resin in the modified resin improves, but other physicochemical properties descend obviously.Viscosity (stormer viscosity meter) 107KU; Petrol-resistance: the 2mm 20d that films films and feels like jelly; Water tolerance: the 2mm 6d foaming of filming of filming; Wear resistance (500g/500r) 53mg; Sticking power (pull open and send out) 3.5MPa; Coating thermal conductivity 0.11W/ (mK); The 2mm salt spray resistance 3000h that films films without unusual; Package stability coats with lacquer after half a year and occurs obvious demixing phenomenon in the liquid; Film coated surface is smooth; Coating fire resistance: fire endurance 72min.
Claims (9)
1. high-solid epoxy resin expansion fire-proof thermal insulating coating, formed by first component and component B, it is characterized in that: the first component comprises that modified epoxy content is 10 ~ 50wt%, tinting pigment 5 ~ 30wt %, fire-retardant filler 0 ~ 60wt %, auxiliary agent 1 ~ 5wt %, thermal insulating filling 1 ~ 10wt %, above weight percentage is based on the gross weight meter of first component; Component B is liquid non-solvent epoxy solidifying agent; Described modified epoxy comprises at least a Resins, epoxy and at least a epoxy active diluent and at least a acrylic resin.
2. high-solid epoxy resin expansion fire-proof thermal insulating coating as claimed in claim 1 is characterized in that: described epoxy active diluent is selected from one or more the combination in butylglycidyl ether, tertiary carbonic acid glycidyl ester, cresyl glycidyl ether, polypropylene glycol diglycidyl ether, polyethyleneglycol diglycidylether, iso-octyl glycidyl ether, the trimethylphenylmethane base glycidyl ether; Described Resins, epoxy is selected from one or more the combination in bisphenol A type epoxy resin, bisphenol f type epoxy resin, the novolac epoxy; Described acrylic resin is the thermoplasticity solvent type acrylic resin that is formed by radical polymerization by the monomer that is selected from methacrylic acid, methacrylic methyl esters, butyl acrylate, vinylbenzene, Propylene glycol monoacrylate, tertiary ethylene carbonate, vinyl acetate between to for plastic, vinyl cyanide, ethyl propenoate and Isooctyl acrylate monomer.
3. high-solid epoxy resin expansion fire-proof thermal insulating coating as claimed in claim 1, it is characterized in that: described modified epoxy comprises Resins, epoxy 40 ~ 80%, epoxy active diluent 5 ~ 30%, and acrylic resin accounts for 5 ~ 30%, solvent 1% ~ 5% is in the gross weight of modified epoxy.
4. high-solid epoxy resin expansion fire-proof thermal insulating coating as claimed in claim 1, it is characterized in that: the solid content of described modified epoxy is 95 ~ 99%, and oxirane value is between 0.20 ~ 0.50.
5. high-solid epoxy resin expansion fire-proof thermal insulating coating as claimed in claim 1, it is characterized in that: the mass ratio of epoxy active diluent and Resins, epoxy is between 0.1 ~ 0.5.
6. the preparation method of a high-solid epoxy resin expansion fire-proof thermal insulating coating as claimed in claim 1, it is characterized in that: first component and component B are provided respectively, the first component is to make mill base with the grinding plant grinding after modified epoxy, tinting pigment, fire-retardant filler, the auxiliary agent mixing, and in this mill base, add thermal insulating filling, the component that obtains after stirring; The second component is liquid non-solvent epoxy solidifying agent.
7. method as claimed in claim 7, it is characterized in that: the preparation process of modified epoxy may further comprise the steps: (1) will comprise that the component of Resins, epoxy, epoxy active diluent and acrylic resin is mixed and piece together; (2) will mix the step of the product experience decompression desolvation after the assembly.
8. method as claimed in claim 8, it is characterized in that: described acrylic resin uses in the following manner: described acrylic resin is made into solid content is the solution of 60wt%, solvent is preferably N-BUTYL ACETATE; Described modified epoxy comprises Resins, epoxy 40 ~ 80% based on the gross weight meter of modified epoxy, epoxy active diluent 5 ~ 30%, and acrylic resin accounts for 5 ~ 30%, solvent 1% ~ 5%.
9. method as claimed in claim 5 is characterized in that: described Resins, epoxy oxirane value is between 0.20 ~ 0.50, and the solid content of the step post-modification Resins, epoxy of experience decompression desolvation is 95 ~ 99%.
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| CN103468097A (en) * | 2013-09-22 | 2013-12-25 | 苏州市湘园特种精细化工有限公司 | Expansive type fireproof and heat insulating coating |
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| CN103468097A (en) * | 2013-09-22 | 2013-12-25 | 苏州市湘园特种精细化工有限公司 | Expansive type fireproof and heat insulating coating |
| CN103788823A (en) * | 2014-01-22 | 2014-05-14 | 南通市海鸥救生防护用品有限公司 | Fireproof heat-preserving and heat-insulating coating, and preparation method thereof |
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| CN107896496B (en) * | 2015-04-24 | 2020-09-18 | Ppg涂料欧洲有限责任公司 | Intumescent coating composition |
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| CN105440829A (en) * | 2015-12-11 | 2016-03-30 | 江苏兰陵高分子材料有限公司 | Waterborne intumescent fireproof coating for steel structure |
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| CN107163849A (en) * | 2017-05-31 | 2017-09-15 | 安庆永大体育用品有限公司 | A kind of woodwork fireproof flame-retardant coating and preparation method thereof |
| CN108485461A (en) * | 2018-03-22 | 2018-09-04 | 安徽萌果科技有限公司 | Prevent the novel protected layer of rough circumstances petrochina pipeline breaking |
| CN109181481A (en) * | 2018-09-03 | 2019-01-11 | 广西南宁维防腐科技有限公司 | Pipeline corrosion protection epoxy coating and its production method |
| CN109575747A (en) * | 2018-11-16 | 2019-04-05 | 上海博歌建材有限公司 | A kind of solvent-free antistatic Self-leveling finishing coat of anti-corrosion type and preparation method thereof |
| CN109880423A (en) * | 2019-03-05 | 2019-06-14 | 中国工程物理研究院化工材料研究所 | A kind of heat-insulated protective coating of novel flame-retardant and preparation method thereof |
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| CN111253791A (en) * | 2020-01-16 | 2020-06-09 | 江苏庞捷实业发展有限公司 | Novel railway vehicle fireproof coating |
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