CN107474654A - A kind of cold water water pipe heat insulation coating - Google Patents
A kind of cold water water pipe heat insulation coating Download PDFInfo
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- CN107474654A CN107474654A CN201710909186.6A CN201710909186A CN107474654A CN 107474654 A CN107474654 A CN 107474654A CN 201710909186 A CN201710909186 A CN 201710909186A CN 107474654 A CN107474654 A CN 107474654A
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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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of cold water water pipe heat insulation coating, is related to water pipe line protection technique field, and its composition includes：Polytetrafluoroethylene (PTFE), organo-bismuth antioxidant, cupric oxide powder, concentrated hydrochloric acid, silane, antioxygen auxiliary agent, propylene asphaltic resin, aqueous slkali, deionized water, ethanol, hard polyurethane foams, ultra-low density polyethylene, trichloro ethylene, carboxymethyl chitosan, 3,4 dimethyl pyrazole hydrochlorates, sodium aluminate, polyglyceryl fatty acid ester, dicyclohexylcarbodiimide, 4 dimethylamino naphthyridines, p-methyl benzenesulfonic acid, terpene resin, APP, triphenyl phosphate, polyamide modified novolac epoxy resin, aquadag；Cold water water pipe heat insulation coating of the present invention, in cold environments heat-insulated to pipeline, cold significant effect；Coating is safe and non-toxic, does not corrode pipeline, pressure-resistant, impact resistance, in the presence of a harsh environment stable material quality, relative Soft, foldable when prepared by coating, available for waterway pipe in each position and flex point, does not crack, breach etc. damages.
Description
Technical field：
The present invention relates to water pipe line protection technique field, more particularly to prepare a kind of cold water water pipe heat insulation coating.
Background technology：
Vast northern area in China, velocity of medium is zero in feedwater piping, fire protection pipeline, in order to ensure that each pipe network exists
Winter normal operation, it is desirable to which various pipelines do not freeze knot in case using at any time, it is necessary to anti-freeze processing mesh is carried out to pipeline
It is preceding implement freezing prevention tubing knot method it is relatively more, but substantially same engineering is only with a certain single scheme, not to not Tongfang
Case carries out the com-parison and analysis of system
Freezing prevention tubing antifreeze method most long at present is respectively：Using originally water temperature thermal insulation it is antifreeze, utilize heating system
For the adiabatic companion of backwater is warm, filling anti-icing fluid is antifreeze, steam hot-water heating is antifreeze and the antifreeze five kinds of antifreeze modes of electric tracing.Above-mentioned four kinds of pipes
The antifreeze mode in road respectively has advantage and disadvantage, and suitable antifreeze mode is only best for freezing prevention tubing.
When in cold snap, when being particularly placed in sub-zero environment for a long time, once because weather was too cold in your family,
Water pipe from freezing crack is crossed so as to ' water overflows Kingsoft 'Any pipeline all can cause to destroy because pipeline repeatedly freezes.To avoid because long-term
Low temperature destroys to caused by pipeline, and the present invention specially prepares a kind of cold water water pipe insulation for pipe insulation, cold-proof, resistance to jelly and applied
Layer.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of cold water water pipe heat insulation coating, and coating is safe and non-toxic, side
Just use, in cold snap, when being particularly placed in sub-zero environment for a long time, coating can avoid pipeline because of prolonged and repeated jelly
Phenomena such as tying and causing crackle, water quality to freeze.The present invention specially prepares pipe insulation for waterway pipe prolonged cold, prevented
The cold water water pipe heat insulation coating of cold, resistance to jelly.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of cold water water pipe heat insulation coating, include the raw material of following number：
Polytetrafluoroethylene (PTFE) 23-50 parts, organo-bismuth antioxidant 2-16 parts, cupric oxide powder 2-40 parts, concentrated hydrochloric acid 2-30 parts, silicon
Alkane 5-21 parts, antioxygen auxiliary agent 2-10 parts, propylene asphaltic resin 4-11 parts, aqueous slkali 10-17 parts, deionized water 2-10 parts, ethanol
1-6 parts, hard polyurethane foams 6-20 parts, ultra-low density polyethylene 5-20 parts, trichloro ethylene 1-10 parts, carboxymethyl chitosan 5-
15 parts, 3,4- dimethyl pyrazole hydrochlorate 1-13 parts, sodium aluminate 15-30 parts, polyglyceryl fatty acid ester 2-10 parts, dicyclohexyl carbon two
Imines 12-36 parts, DMAP 6-15 parts, p-methyl benzenesulfonic acid 8-18 parts, terpene resin 5-20 parts, APP 2-
10 parts, triphenyl phosphate 2-10 parts, polyamide modified novolac epoxy resin 2-20 parts, aquadag 10-30 parts.
In cold water water pipe heat insulation coating raw material, antioxygen auxiliary agent includes by weight：2- methyl heptane 20-23 parts, N- isopropyls
Base-N- phenyl-pphenylenediamine's 11-14 parts, foaming agent OBSH3-6 parts, ammonium hydrogen carbonate 15-18 parts.
In cold water water pipe heat insulation coating raw material, organo-bismuth antioxidant includes by weight：Zinc oxide 1.5-2.5 parts, bay
Sour bismuth 1-3 parts, aluminum stearate 3-6 parts, urea 5-8 parts, polysiloxanes-more alkoxies ether copolymer 2-3 parts.
The preparation method of cold water water pipe heat insulation coating is as follows：
1st, polytetrafluoroethylene (PTFE), deionized water are added into high-temperature smelting pot and is warming up to 327-350 DEG C, heated and 1000-
2000rpm/min is stirred to polytetrafluoroethylene (PTFE) and melted completely, added in backward fused materials shredded a width of 5-10cm of growth ×
5-10cm hard polyurethane foams and ultra-low density polyethylene, synchronized stirring is complete up to hard polyurethane foams melting, after
Well mixed material is placed and melts in stove 200-327 DEG C and preserves that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into trichloro ethylene 1-10 parts heating 30-
70 DEG C dissolve and are well mixed mixed material, and dicyclohexylcarbodiimide is then added dropwise, DMAP, then heats up,
And the backflow of organo-bismuth antioxidant is added, nitrogen protection is carried out in reflux course, is then cleaned, vacuum drying obtains material II；
3rd, terpene resin, APP, triphenyl phosphate are heated into 40-80 DEG C to be well mixed, then carry out hydro-thermal reaction,
Add cupric oxide powder to be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, alkali is added in temperature-rise period
Solution maintains 6.5-8.5 to mixed solution Ph, is incubated afterwards, does not stop to stir 25-40min in insulating process, rear stand cools down, washed
Wash into filtrate without phosphate anion, dry, grinding obtains organic filler；
4th, material I is warming up to molten condition, adds material II, organic filler and polyamide modified epoxy novolac tree
After fat, aquadag are well mixed, it are subsequently added into concentrated hydrochloric acid, silane, propylene asphaltic resin, ethanol and are well mixed, then adds anti-
Oxygen auxiliary agent 1000-2000rpm/min, which is uniformly mixed, produces cold water water pipe heat insulation coating, and cold water water pipe heat insulation coating is protected
Be stored in holding furnace 50-100 DEG C it is stand-by.
In cold water water pipe heat insulation coating in the step 2 of preparation method, 40-45 DEG C is warming up to, flow back 8-9h.
In cold water water pipe heat insulation coating in the step 3 of heat-insulation layer preparation method, the temperature of hydro-thermal reaction is 180-200 DEG C,
The time of hydro-thermal reaction is 2-3h.
In the step 4 of cold water water pipe heat insulation coating preparation method, 40-45 DEG C is warming up to, is incubated 2-2.5h.
The polyamide modified novolac epoxy resin preparation method is：By the polyamide modified second order phenolic resin after purification
1-5 part epoxychloropropane is dissolved in, is placed in four-hole boiling flask, oil bath heating heating, is divided by with TMP1/1 mol ratios configuration quality
Number is 20-40% NaOH solution, when temperature of charge reaches 50-75 DEG C, NaOH solution is added dropwise by 15 drops/min, continues to heat up
To 62-80 DEG C of Open loop temperature, reaction is kept until alkali lye is added dropwise；85-90 DEG C of closed loop thermal is warming up to, keeps reaction, when
There is white NaCl to separate out, reaction product is gradually transparent, and cyclization terminates, and stops heating, and stirring is cooled to room temperature, and reaction is produced
Thing stratification, liquid separation remove NaCl and saturation NaCl solution, subtracted under the conditions of vacuum 0.1-0.3MPa, 115-125 DEG C
Pressure is distilled to recover epoxychloropropane, finally obtains polyamide modified novolac epoxy resin；
Preferably, the aquadag preparation method is：Natural flake graphite is soaked in titanium dioxide oxidizer and 1-
Mercaptopropyi -2,3, in 4- triethoxysilicane solution, it is oxidized in 30-70 DEG C of wet film in the presence of strong oxidizer, causes stone
Neutral net plane macromolecular in layer of ink becomes the plane macromolecular with positive charge, because the plane with positive charge is divided greatly
The repulsive interaction of same sex positive charge between sublayer, graphite layers distance increase, and final 1- mercaptopropyis -2,3,4- triethoxysilicanes enter
Enter graphite layers, and high temperature molten glass fiber warp added into graphite silicon solution, after melting emulsion is added through high temperature furnace high temperature
Hot banburying 20-30min, you can aquadag is made.
The beneficial effects of the invention are as follows：Cold water water pipe heat insulation coating prepared by the present invention, pipeline is protected in cold environments
Temp effect is good, and the temperature difference on coating isolation both sides, heat-insulated, cold significant effect；Another coating material is safe and non-toxic, does not corrode pipe
Road, pressure-resistant, impact resistance, extremely strong resistance chilling temperatures, stable material quality, Stability Analysis of Structures, saves material in the presence of a harsh environment, and cold
With respect to Soft, foldable when prepared by water water pipe heat insulation coating, available for waterway pipe each position and each flex point protection,
Can around the water pipe of close installation, not by external environment because low temperature high temperature repeatedly temperature difference cataclysm and crack, the damage such as breach
Bad, water pipe external protection is durable, and service life is permanent, can reduce water pipe protection input economic cost, cost-effective.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1：
A kind of cold water water pipe heat insulation coating, include the raw material of following number：
23 parts of polytetrafluoroethylene (PTFE), 6 parts of organo-bismuth antioxidant, 24 parts of cupric oxide powder, 10 parts of concentrated hydrochloric acid, 5 parts of silane, antioxygen
It is 6 parts of auxiliary agent, 5 parts of propylene asphaltic resin, 11 parts of aqueous slkali, 8 parts of deionized water, 6 parts of ethanol, 15 parts of hard polyurethane foams, super
16 parts of low density polyethylene (LDPE), 9 parts of trichloro ethylene, 11 parts of carboxymethyl chitosan, 9 parts of 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate 17
Part, 5 parts of polyglyceryl fatty acid ester, 21 parts of dicyclohexylcarbodiimide, 15 parts of DMAP, p-methyl benzenesulfonic acid 13
Part, 15 parts of terpene resin, 8 parts of APP, 6 parts of triphenyl phosphate, 12 parts of polyamide modified novolac epoxy resin, aquadag 11
Part.
In cold water water pipe heat insulation coating raw material, antioxygen auxiliary agent includes by weight：20 parts of 2- methyl heptanes, N- isopropyls-
11 parts of N- phenyl-pphenylenediamines, foaming agent OBSH3 parts, 15 parts of ammonium hydrogen carbonate.
In cold water water pipe heat insulation coating raw material, organo-bismuth antioxidant includes by weight：2.5 parts of zinc oxide, laurate bismuth 2
Part, 3 parts of aluminum stearate, 5 parts of urea, polysiloxanes -3 parts of more alkoxies ether copolymer.
The preparation method of cold water water pipe heat insulation coating is as follows：
1st, polytetrafluoroethylene (PTFE), deionized water are added into high-temperature smelting pot and is warming up to 330 DEG C, heated and 2000rpm/min is stirred
Mix to polytetrafluoroethylene (PTFE) and melt completely, added in backward fused materials and shredded a width of 5-10cm × 5-10cm that grows up hard and gather
Urethane foam and ultra-low density polyethylene, synchronized stirring until hard polyurethane foams melting is complete, after will be well mixed thing
Material placement melts in stove 200 DEG C and preserves that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into trichloro ethylene and heats 60 DEG C of dissolvings
And well mixed mixed material, dicyclohexylcarbodiimide is then added dropwise, DMAP, then heats up, and addition has
Machine bismuth antioxidant is flowed back, and nitrogen protection is carried out in reflux course, is then cleaned, and vacuum drying obtains material II；
3rd, terpene resin, APP, triphenyl phosphate are heated into 75 DEG C to be well mixed, then carries out hydro-thermal reaction, add
Enter cupric oxide powder to be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, alkali soluble is added in temperature-rise period
Liquid maintains 7.0 to mixed solution Ph, is incubated afterwards, does not stop to stir 25min in insulating process, rear stand cools down, washed to filtrate
Middle no phosphate anion, dry, grinding obtains organic filler；
4th, material I is warming up to molten condition, adds material II, organic filler and polyamide modified epoxy novolac tree
After fat, aquadag are well mixed, it are subsequently added into concentrated hydrochloric acid, silane, propylene asphaltic resin, ethanol and are well mixed, then adds anti-
Oxygen auxiliary agent 1000rpm/min, which is uniformly mixed, produces cold water water pipe heat insulation coating, and cold water water pipe heat insulation coating is stored in
In holding furnace 80 DEG C it is stand-by.
In cold water water pipe heat insulation coating in the step 2 of preparation method, 45 DEG C are warming up to, flow back 8h.
In cold water water pipe heat insulation coating in the step 3 of heat-insulation layer preparation method, the temperature of hydro-thermal reaction is 180 DEG C, hydro-thermal
The time of reaction is 2.5h.
In the step 4 of cold water water pipe heat insulation coating preparation method, 45 DEG C are warming up to, is incubated 2h.
The polyamide modified novolac epoxy resin preparation method is：By the polyamide modified second order phenolic resin after purification
Be dissolved in 5 parts of epoxychloropropane, be placed in four-hole boiling flask, oil bath heating heating, by with TMP1/1 mol ratio configuration quality fractions
For 20% NaOH solution, when temperature of charge reaches 55 DEG C, NaOH solution is added dropwise by 15 drops/min, is continuously heating to open loop temperature
62 DEG C of degree, reaction is kept until alkali lye is added dropwise；It is warming up to 85 DEG C of closed loop thermal, keeps reaction, when there is white NaCl to separate out,
Reaction product is gradually transparent, and cyclization terminates, and stops heating, stirring is cooled to room temperature, by reaction product stratification, liquid separation
NaCl and saturation NaCl solution are removed, recovery epoxy chlorine is evaporated under reduced pressure under the conditions of vacuum 0.1-0.3MPa, 115-125 DEG C
Propane, finally obtain polyamide modified novolac epoxy resin；
Preferably, the aquadag preparation method is：Natural flake graphite is soaked in titanium dioxide oxidizer and 1-
Mercaptopropyi -2,3, in 4- triethoxysilicane solution, it is oxidized in 60 DEG C of wet films in the presence of strong oxidizer, causes graphite linings
In neutral net plane macromolecular become the plane macromolecular with positive charge, due to the plane macromolecule layer with positive charge
Between same sex positive charge repulsive interaction, graphite layers distance increases, and final 1- mercaptopropyis -2,3,4- triethoxysilicanes enter stone
Between layer of ink, and high temperature molten glass fiber warp is added into graphite silicon solution, after will melting emulsion be heated at high temperature through high temperature furnace it is close
Refine 25min, you can aquadag is made.
The application method of cold water water pipe heat insulation coating is as follows：
1st, cold water water tube surfaces are first rinsed well with clear water；
2nd, cleaned again with 0.02mlo/l hydrochloric acid solution, remove water tube surfaces stain, rusty stain etc.；
3rd, water tube surfaces water mark evaporation drying is treated under 10-20 DEG C of environment of room temperature；
4th, one layer of gluing jelly of commercial metals of water tube surfaces brushing, adhesive surface coating are uniform after the drying；
5th, cold water water pipe heat insulation coating is brushed after coated with adhesive at once, cold water water pipe heat insulation coating thickness 1cm, has been brushed
Finish, dry solidification to be coated is solid.
Embodiment 2：
A kind of cold water water pipe heat insulation coating, include the raw material of following number：
It is 34 parts of polytetrafluoroethylene (PTFE), 12 parts of organo-bismuth antioxidant, 25 parts of cupric oxide powder, 8 parts of concentrated hydrochloric acid, 16 parts of silane, anti-
8 parts of oxygen auxiliary agent, 10 parts of propylene asphaltic resin, 10 parts of aqueous slkali, 8 parts of deionized water, 6 parts of ethanol, 13 parts of hard polyurethane foams,
15 parts of ultra-low density polyethylene, 8 parts of trichloro ethylene, 12 parts of carboxymethyl chitosan, 11 parts of 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate
23 parts, 9 parts of polyglyceryl fatty acid ester, 13 parts of dicyclohexylcarbodiimide, 12 parts of DMAP, p-methyl benzenesulfonic acid 10
Part, 15 parts of terpene resin, 9 parts of APP, 5 parts of triphenyl phosphate, 11 parts of polyamide modified novolac epoxy resin, aquadag 17
Part.
In cold water water pipe heat insulation coating raw material, antioxygen auxiliary agent includes by weight：21 parts of 2- methyl heptanes, N- isopropyls-
12 parts of N- phenyl-pphenylenediamines, 4 parts of foaming agent OBSH, 15 parts of ammonium hydrogen carbonate.
In cold water water pipe heat insulation coating raw material, organo-bismuth antioxidant includes by weight：2.5 parts of zinc oxide, laurate bismuth 2
Part, 4 parts of aluminum stearate, 5 parts of urea, polysiloxanes -2 parts of more alkoxies ether copolymer.
The preparation method of cold water water pipe heat insulation coating is as follows：
1st, polytetrafluoroethylene (PTFE), deionized water are added into high-temperature smelting pot and is warming up to 350 DEG C, heated and 1500rpm/min is stirred
Mix to polytetrafluoroethylene (PTFE) and melt completely, added in backward fused materials and shredded a width of 5-10cm × 5-10cm that grows up hard and gather
Urethane foam and ultra-low density polyethylene, synchronized stirring until hard polyurethane foams melting is complete, after will be well mixed thing
Material placement melts in stove 280 DEG C and preserves that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into trichloro ethylene and heats 70 DEG C of dissolvings
And well mixed mixed material, dicyclohexylcarbodiimide is then added dropwise, DMAP, then heats up, and addition has
Machine bismuth antioxidant is flowed back, and nitrogen protection is carried out in reflux course, is then cleaned, and vacuum drying obtains material II；
3rd, terpene resin, APP, triphenyl phosphate are heated into 75 DEG C to be well mixed, then carries out hydro-thermal reaction, add
Enter cupric oxide powder to be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, alkali soluble is added in temperature-rise period
Liquid maintains 7.5 to mixed solution Ph, is incubated afterwards, does not stop to stir 30min in insulating process, rear stand cools down, washed to filtrate
Middle no phosphate anion, dry, grinding obtains organic filler；
4th, material I is warming up to molten condition, adds material II, organic filler and polyamide modified epoxy novolac tree
After fat, aquadag are well mixed, it are subsequently added into concentrated hydrochloric acid, silane, propylene asphaltic resin, ethanol and are well mixed, then adds anti-
Oxygen auxiliary agent 1000rpm/min, which is uniformly mixed, produces cold water water pipe heat insulation coating, and cold water water pipe heat insulation coating is stored in
In holding furnace 100 DEG C it is stand-by.
In cold water water pipe heat insulation coating in the step 2 of preparation method, 45 DEG C are warming up to, flow back 9h.
In cold water water pipe heat insulation coating in the step 3 of heat-insulation layer preparation method, the temperature of hydro-thermal reaction is 180 DEG C, hydro-thermal
The time of reaction is 2h.
In the step 4 of cold water water pipe heat insulation coating preparation method, 40 DEG C are warming up to, is incubated 2.5h.
The polyamide modified novolac epoxy resin preparation method is：By the polyamide modified second order phenolic resin after purification
Be dissolved in 4 parts of epoxychloropropane, be placed in four-hole boiling flask, oil bath heating heating, by with TMP1/1 mol ratio configuration quality fractions
For 35% NaOH solution, when temperature of charge reaches 50 DEG C, NaOH solution is added dropwise by 15 drops/min, is continuously heating to open loop temperature
70 DEG C of degree, reaction is kept until alkali lye is added dropwise；It is warming up to 85 DEG C of closed loop thermal, keeps reaction, when there is white NaCl to separate out,
Reaction product is gradually transparent, and cyclization terminates, and stops heating, stirring is cooled to room temperature, by reaction product stratification, liquid separation
NaCl and saturation NaCl solution are removed, recovery epoxy chlorine is evaporated under reduced pressure under the conditions of vacuum 0.1-0.3MPa, 115-125 DEG C
Propane, finally obtain polyamide modified novolac epoxy resin；
The aquadag preparation method is：Natural flake graphite is soaked in titanium dioxide oxidizer and 1- sulfydryls third
Base -2,3, in 4- triethoxysilicane solution, it is oxidized, causes in graphite linings in the presence of strong oxidizer in 30-70 DEG C of wet film
Neutral net plane macromolecular become the plane macromolecular with positive charge, due between the plane macromolecule layer with positive charge
The repulsive interaction of same sex positive charge, graphite layers distance increase, and final 1- mercaptopropyis -2,3,4- triethoxysilicanes enter graphite
Interlayer, and high temperature molten glass fiber warp is added into graphite silicon solution, after melting emulsion is heated at high temperature banburying through high temperature furnace
20-30min, you can aquadag is made.
Preferably, the application method of cold water water pipe heat insulation coating is as follows：
1st, cold water water tube surfaces are first rinsed well with clear water；
2nd, cleaned again with 0.05mlo/l hydrochloric acid solution, remove water tube surfaces stain, rusty stain etc.；
3rd, water tube surfaces water mark evaporation drying is treated under 20 DEG C of environment of room temperature；
4th, one layer of gluing jelly of commercial metals of water tube surfaces brushing, adhesive surface coating are uniform after the drying；
5th, cold water water pipe heat insulation coating is brushed after coated with adhesive at once, cold water water pipe heat insulation coating thickness 2cm, has been brushed
Finish, dry solidification to be coated is solid.
To carrying out experiment investigation respectively in embodiment provided by the invention, by 2 chilled water water pipes of embodiment 1 and embodiment
Heat insulation coating is investigated, reference GB-T9756-2009 and HG/T3362-203 standard detection cold water water pipe heat insulation coatings, as a result
As shown in table 1；
1 chilled water water pipe heat insulation coating of table investigates result
The cold water water pipe heat insulation coating prepared from embodiment 1 and the testing result of embodiment 2, the present invention, in cold ring
It is good to pipeline heat insulation effect under border, and the temperature difference on coating isolation both sides, heat-insulated, cold significant effect；Another coating material safety nothing
Poison, do not corrode pipeline, pressure-resistant, impact resistance, extremely strong resistance chilling temperatures, stable material quality, Stability Analysis of Structures, is saved in the presence of a harsh environment
About material, and with respect to Soft, foldable during the preparation of cold water water pipe heat insulation coating, available for waterway pipe in each position and each
The protection of flex point, can around the water pipe of close installation, not by external environment because low temperature high temperature repeatedly temperature difference cataclysm and produce and split
Line, breach etc. damage, and water pipe external protection is durable, and service life is permanent, can reduce water pipe protection input economic cost, cost performance
It is high.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
- A kind of 1. cold water water pipe heat insulation coating, it is characterised in that：Include the raw material of following number：Polytetrafluoroethylene (PTFE) 23-50 parts, organo-bismuth antioxidant 2-16 parts, cupric oxide powder 2-40 parts, concentrated hydrochloric acid 2-30 parts, silane 5- 21 parts, antioxygen auxiliary agent 2-10 parts, propylene asphaltic resin 4-11 parts, aqueous slkali 10-17 parts, deionized water 2-10 parts, ethanol 1-6 Part, hard polyurethane foams 6-20 parts, ultra-low density polyethylene 5-20 parts, trichloro ethylene 1-10 parts, carboxymethyl chitosan 5-15 Part, 3,4- dimethyl pyrazole hydrochlorate 1-13 parts, sodium aluminate 15-30 parts, polyglyceryl fatty acid ester 2-10 parts, dicyclohexyl carbon two are sub- Amine 12-36 parts, DMAP 6-15 parts, p-methyl benzenesulfonic acid 8-18 parts, terpene resin 5-20 parts, APP 2-10 Part, triphenyl phosphate 2-10 parts, polyamide modified novolac epoxy resin 2-20 parts, aquadag 10-30 parts.In warming plate coating material, the antioxygen auxiliary agent includes by weight：2- methyl heptane 20-23 parts, N- isopropyl-N- benzene Base-p-phenylenediamine 11-14 parts, foaming agent OBSH3-6 parts, ammonium hydrogen carbonate 15-18 parts；In warming plate coating material, the organo-bismuth antioxidant includes by weight：Zinc oxide 1.5-2.5 parts, laurate bismuth 1-3 Part, aluminum stearate 3-6 parts, urea 5-8 parts, polysiloxanes-more alkoxies ether copolymer 2-3 parts.
- 2. cold water water pipe heat insulation coating according to claim 1, it is characterised in that：The preparation side of cold water water pipe heat insulation coating Method is as follows：(1) polytetrafluoroethylene (PTFE), deionized water, are added into high-temperature smelting pot and are warming up to 327-350 DEG C, is heated and 1000- 2000rpm/min is stirred to polytetrafluoroethylene (PTFE) and melted completely, added in backward fused materials shredded a width of 5-10cm of growth × 5-10cm hard polyurethane foams and ultra-low density polyethylene, synchronized stirring is complete up to hard polyurethane foams melting, after Well mixed material is placed and melts in stove 200-327 DEG C and preserves that to obtain material I stand-by；(2) 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester, are added into trichloro ethylene and heat 30-70 DEG C of dissolving And well mixed mixed material, dicyclohexylcarbodiimide is then added dropwise, DMAP, then heats up, and addition has Machine bismuth antioxidant is flowed back, and nitrogen protection is carried out in reflux course, is then cleaned, and vacuum drying obtains material II；(3) terpene resin, APP, triphenyl phosphate, are heated into 40-80 DEG C to be well mixed, hydro-thermal reaction is then carried out, adds Enter cupric oxide powder to be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, alkali soluble is added in temperature-rise period Liquid maintains 6.5-8.5 to mixed solution Ph, is incubated afterwards, does not stop to stir 25-40min in insulating process, rear stand cools down, washed Into filtrate without phosphate anion, dry, grinding obtains organic filler；(4) material I, is warming up to molten condition, add material II, organic filler and polyamide modified novolac epoxy resin, After aquadag is well mixed, it is subsequently added into concentrated hydrochloric acid, silane, propylene asphaltic resin, ethanol and is well mixed, then adds antioxygen and help Agent 1000-2000rpm/min, which is uniformly mixed, produces cold water water pipe heat insulation coating, and cold water water pipe heat insulation coating is stored in In holding furnace 50-100 DEG C it is stand-by.
- 3. cold water water pipe heat insulation coating according to claim 2, it is characterised in that：Preparation side in cold water water pipe heat insulation coating In the step 2 of method, 40-45 DEG C is warming up to, flow back 8-9h.
- 4. insulation plate coating according to claim 3, it is characterised in that：Heat-insulation layer preparation side in cold water water pipe heat insulation coating In the step 3 of method, the temperature of hydro-thermal reaction is 180-200 DEG C, and the time of hydro-thermal reaction is 2-3h.
- 5. insulation plate coating according to claim 4, it is characterised in that：The step of cold water water pipe heat insulation coating preparation method In 4,40-45 DEG C is warming up to, is incubated 2-2.5h.
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| CN201710909186.6A CN107474654A (en) | 2017-09-29 | 2017-09-29 | A kind of cold water water pipe heat insulation coating |
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| CN201710909186.6A CN107474654A (en) | 2017-09-29 | 2017-09-29 | A kind of cold water water pipe heat insulation coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322214A (en) * | 2018-09-29 | 2019-02-12 | 漳州市天辰纸品包装有限公司 | A kind of dedicated corrugated paper of weatherable medicine |
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| CN102993855A (en) * | 2012-12-06 | 2013-03-27 | 沈阳洪达信息科技有限公司 | Heat insulation coating and preparation method thereof |
| CN103160172A (en) * | 2013-03-29 | 2013-06-19 | 南通好的防腐装备有限公司 | Curable anticorrosion coating for teflon/polyethylene lining and coating method of curable anticorrosion coating |
| CN106833326A (en) * | 2016-12-14 | 2017-06-13 | 池州市小康人家科技有限公司 | A kind of thermal insulation coatings |
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2017
- 2017-09-29 CN CN201710909186.6A patent/CN107474654A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993855A (en) * | 2012-12-06 | 2013-03-27 | 沈阳洪达信息科技有限公司 | Heat insulation coating and preparation method thereof |
| CN103160172A (en) * | 2013-03-29 | 2013-06-19 | 南通好的防腐装备有限公司 | Curable anticorrosion coating for teflon/polyethylene lining and coating method of curable anticorrosion coating |
| CN106833326A (en) * | 2016-12-14 | 2017-06-13 | 池州市小康人家科技有限公司 | A kind of thermal insulation coatings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109322214A (en) * | 2018-09-29 | 2019-02-12 | 漳州市天辰纸品包装有限公司 | A kind of dedicated corrugated paper of weatherable medicine |
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