CN107760119A - A kind of preparation method for the thermal insulation coatings of resistance to cold water pipe - Google Patents
A kind of preparation method for the thermal insulation coatings of resistance to cold water pipe Download PDFInfo
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- CN107760119A CN107760119A CN201710911717.5A CN201710911717A CN107760119A CN 107760119 A CN107760119 A CN 107760119A CN 201710911717 A CN201710911717 A CN 201710911717A CN 107760119 A CN107760119 A CN 107760119A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C08K2003/0893—Zinc
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- 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
- C08K2003/2248—Oxides; Hydroxides of metals of copper
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K3/20—Oxides; Hydroxides
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of preparation method for the thermal insulation coatings of resistance to cold water pipe, it is related to thermal insulation coatings technical field, its composition includes：Isopropyl acetate, anthracene sesame oil, Triethyleneglycol di n heptanoate, PVC paste resin, epoxyfuoic-oleic, mineral oil, polytetrafluoroethylene (PTFE), organo-bismuth antioxidant, cupric oxide powder, silane, antioxygen auxiliary agent, propylene asphaltic resin, hard polyurethane foams, 3,4 dimethyl pyrazole hydrochlorates, sodium aluminate, polyglyceryl fatty acid ester, p-methyl benzenesulfonic acid, terpene resin, triphenyl phosphate, microcrystalline cellulose, extension agent, aqueous slkali；The thermal insulation coatings of resistance to cold water pipe prepared by the present invention; high insulating effect in cold environments; paint ingredient is safe and non-toxic; do not corrode pipeline; pressure-resistant, impact resistance; stable material quality, and the thermal insulation coatings of resistance to cold water pipe can be used for protection of the waterway pipe in each position and each flex point, not by external environment because low temperature high temperature repeatedly temperature difference cataclysm and crack, the damage such as breach.
Description
Technical field：
The present invention relates to thermal insulation coatings technical field, more particularly to prepare a kind of preparation side for the thermal insulation coatings of resistance to cold water pipe
Method.
Background technology：
Thermal insulation coatings are a kind of new insulation materials, and the one of heat-insulation and heat-preservation is realized by low thermal conductivity and high thermal resistance
Kind coating.The product adds chemical addition agent and high temperature stick by high-quality natural mineral matter, by slurrying, enters mould, sizing, baking
The techniques such as dry, finished product, packaging are fabricated.Coating is a kind of new insulation material, this product be collection closed pore structure with
The high-quality and efficient insulation material that reticular fiber structure is integrated.In use temperature range.Can be long-term use of, it is non-aging, no
Rotten, nonpoisonous and tasteless, heat-insulating property does not subtract for a long time, has that body is light, thermal conductivity factor is small, every cold, heat-insulated, the shockproof, sound-absorbing the features such as,
It can be widely used in the industries such as metallurgy, chemical industry, oil, ship, weaving, medicine, traffic, thermoelectricity, building, be easy to construct, it is not dirty
Environment is contaminated, skin is not stimulated, constructs the features such as lossless.
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 preparation method for the thermal insulation coatings of resistance to cold water pipe, coating peace
Atoxic, convenient use, in cold snap, when being particularly placed in sub-zero environment for a long time, coating can avoid pipeline because
Prolonged and repeated freeze and cause crackle, water quality freeze phenomena such as.The present invention specially prepares pipe for waterway pipe prolonged cold
Road insulation, a kind of thermal insulation coatings of resistance to cold water pipe preparation method of cold-proof, resistance to jelly.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of preparation method for the thermal insulation coatings of resistance to cold water pipe：Its composition includes the raw material of following number：
Isopropyl acetate 5-20 parts, anthracene sesame oil 4-17 parts, Triethyleneglycol di n heptanoate 3-10 parts, PVC paste resin 4-
18 parts, epoxyfuoic-oleic 3-19 parts, mineral oil 2-19 parts, polytetrafluoroethylene (PTFE) 23-50 parts, organo-bismuth antioxidant 2-16 parts,
Cupric oxide powder 2-40 parts, silane 5-21 parts, antioxygen auxiliary agent 2-10 parts, propylene asphaltic resin 4-11 parts, hard polyurethane foams
6-20 parts, 3,4- dimethyl pyrazole hydrochlorate 1-13 parts, sodium aluminate 15-30 parts, polyglyceryl fatty acid ester 2-10 parts, to methylbenzene sulphur
Sour 8-18 parts, terpene resin 5-20 parts, triphenyl phosphate 2-10 parts, microcrystalline cellulose 2-20 parts, extension agent 10-30 parts, alkali soluble
Liquid 10-17 parts.
In the thermal insulation coatings of resistance to cold water pipe raw material, the antioxygen auxiliary agent includes by weight：2- methyl heptane 20-23 parts, N-
Isopropyl-N- phenyl-pphenylenediamine's 11-14 parts, foaming agent OBSH3-6 parts, ammonium hydrogen carbonate 15-18 parts.
In the thermal insulation coatings of resistance to cold water pipe raw material, the organo-bismuth antioxidant includes by weight：Zinc oxide 1.5-2.5 parts,
Laurate bismuth 1-3 parts, aluminum stearate 3-6 parts, urea 5-8 parts, polysiloxanes-more alkoxies ether copolymer 2-3 parts.
The preparation method for the thermal insulation coatings of resistance to cold water pipe is as follows：
1st, polytetrafluoroethylene (PTFE), mineral oil 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 isopropyl acetate, synchronized stirring until hard polyurethane foams melting is complete, after will be mixed
Close uniform material and place and melt in stove 200-327 DEG C and preserve that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into organo-bismuth antioxidant, cupric oxide powder
End, heat 30-70 DEG C and dissolve and be well mixed mixed material, propylene asphaltic resin 4-11 parts are then added dropwise, then heat up, and add
Enter remaining organo-bismuth antioxidant backflow, carry out nitrogen protection in reflux course, then clean, vacuum drying obtains material II；
3rd, terpene resin, triphenyl phosphate, microcrystalline cellulose are heated into 40-80 DEG C to be well mixed, it is anti-then carries out hydro-thermal
Should, add remaining cupric oxide powder, be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, temperature-rise period
Middle addition aqueous slkali maintains 6.5-8.5 to mixed solution Ph, is incubated afterwards, does not stop to stir 25-40min in insulating process, rear quiet
Cooling is put, washs into filtrate without phosphate anion, dries, grinding obtains organic filler；
4th, material I is warming up to molten condition, adds material II, organic filler and anthracene sesame oil, two positive enanthic acid of triethylene glycol
After ester is well mixed, it is subsequently added into PVC paste resin, epoxyfuoic-oleic, extension agent and is well mixed, then add silicon
Alkane, antioxygen auxiliary agent 1000-2000rpm/min, which are uniformly mixed, produces cold water water pipe heat insulation coating, and cold water water pipe is incubated
Coating be stored in holding furnace 50-100 DEG C it is stand-by.
In the step 2 of the thermal insulation coatings of resistance to cold water pipe preparation method, 40-45 DEG C is warming up to, flow back 8-9h.
In the step 3 of the thermal insulation coatings of resistance to cold water pipe preparation method, the temperature of hydro-thermal reaction is 180-200 DEG C, hydro-thermal reaction
Time be 2-3h.
In the step 4 of the thermal insulation coatings of resistance to cold water pipe preparation method, 40-45 DEG C is warming up to, is incubated 2-2.5h.
The microcrystalline cellulose is prepared by cellulose by acidization, and its preparation method is：By cellulose and necessarily
It is placed on after amount deionized water mixing in ice bath, the concentrated sulfuric acid is added dropwise while stirring until 0.1-1.0mol/L, mixed liquor is heated
To 30-90 DEG C, 0-5min is heated, temperature is quickly stirred to acidolysis reaction 2-30min so as to obtain part microcrystalline cellulose after reaching
Element, stop heating and being rapidly added 10 times of deionized water dilutions with terminating reaction, gained suspension is put into supercentrifuge
5000-12000rpm/min centrifuges 5-20min, removes supernatant liquor afterwards, and the deionized water stirring of equivalent is being added into precipitation
New suspension is formed, continues high speed centrifugation 2-15min and removes supernatant liquor, is so centrifuged 4-6 times altogether until without precipitation repeatedly
Produce；The suspension that gained is centrifuged to last time with bag filter is dialysed, until the PH of dialyzate no longer changes, is finally led to
Cross freeze-drying and obtain microcrystalline cellulose.
The extension agent composition includes：PVC paste resin 4-18 parts, PLA 3-6 parts, saualane 2-14 parts, fine coal
Grey 2-14 parts, Sodium Polyacrylate 1-12 parts, epoxidized soybean oil 1-13 parts, stearic amide 1-21 parts, nano zinc powder 5-10 parts, chlorine
Change hydroxyl aluminium 5-11 parts, trimellitic anhydride 0.3-0.5 parts, its preparation method is：Into PVC paste resin add PLA and
Epoxidized soybean oil, it is sufficiently mixed after microwave treatment 5min under microwave frequency 2450MHz, power 700W, is stored at room temperature after 1h again
Secondary microwave treatment 5min, adds saualane, Sodium Polyacrylate, stearic amide and trimellitic anhydride, continues after well mixed
Microwave treatment 5min, freezing in -5-0 DEG C of environment is transferred to immediately after and stands 3h, then adds flyash, nano zinc powder and chlorination
Hydroxyl aluminium, and 95-120 DEG C of insulation mixing 15min is heated to, gained mixture, which is transferred in nano-level grinder, to be ground, and produces extension agent.
The beneficial effects of the invention are as follows：The thermal insulation coatings of resistance to cold water pipe 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 paint ingredient 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 resistance to
Cold water pipe thermal insulation coatings can be used for protection of the waterway pipe in each position and each flex point, 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.
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 preparation method for the thermal insulation coatings of resistance to cold water pipe：Its composition includes the raw material of following number：
15 parts of isopropyl acetate, 14 parts of anthracene sesame oil, 10 parts of Triethyleneglycol di n heptanoate, 14 parts of PVC paste resin, ring
9 parts of oxygen oil extracted from rice husks acid butyl ester, 12 parts of mineral oil, 23 parts of polytetrafluoroethylene (PTFE), 6 parts of organo-bismuth antioxidant, 20 parts of cupric oxide powder, silane
11 parts, 9 parts of antioxygen auxiliary agent, 6 parts of propylene asphaltic resin, 6 parts of hard polyurethane foams, 9 parts of 3,4- dimethyl pyrazoles hydrochlorate, aluminic acid
16 parts of sodium, 7 parts of polyglyceryl fatty acid ester, 8 parts of p-methyl benzenesulfonic acid, 10 parts of terpene resin, 8 parts of triphenyl phosphate, microcrystalline cellulose
12 parts of element, 13 parts of extension agent, 7 parts of aqueous slkali.
In the thermal insulation coatings of resistance to cold water pipe 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 the thermal insulation coatings of resistance to cold water pipe raw material, organo-bismuth antioxidant includes by weight：2.5 parts of zinc oxide, laurate bismuth 3
Part, 4 parts of aluminum stearate, 5 parts of urea, polysiloxanes -2 parts of more alkoxies ether copolymer.
The preparation method for the thermal insulation coatings of resistance to cold water pipe is as follows：
1st, polytetrafluoroethylene (PTFE), mineral oil are added into high-temperature smelting pot and is warming up to 330 DEG C, heating simultaneously 1500rpm/min stirrings
Melted completely to polytetrafluoroethylene (PTFE), the hard polyurethane for having shredded a width of 5-10cm × 5-10cm that grows up is added in backward fused materials
Ester foam and isopropyl acetate, synchronized stirring until hard polyurethane foams melting is complete, after will be well mixed material place
Melt in stove 280 DEG C and preserve that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into organo-bismuth antioxidant, cupric oxide powder
End, heat 70 DEG C and dissolve and be well mixed mixed material, propylene asphaltic resin is then added dropwise, then heats up, and add residue to have
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, triphenyl phosphate, microcrystalline cellulose are heated into 80 DEG C to be well mixed, then carry out hydro-thermal reaction,
Add remaining cupric oxide powder, be washed out, dry, add p-methyl benzenesulfonic acid and be well mixed, heat up, add in temperature-rise period
Enter aqueous slkali and maintain 7.0 to mixed solution Ph, be incubated afterwards, do not stop to stir 40min in insulating process, rear stand cools down, washed
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 anthracene sesame oil, two positive enanthic acid of triethylene glycol
After ester is well mixed, it is subsequently added into PVC paste resin, epoxyfuoic-oleic, extension agent and is well mixed, then add silicon
Alkane, antioxygen auxiliary agent 1000rpm/min, which are 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 100 DEG C it is stand-by.
In the step 2 of the thermal insulation coatings of resistance to cold water pipe preparation method, 45 DEG C are warming up to, flow back 8h.
In the step 3 of the thermal insulation coatings of resistance to cold water pipe preparation method, the temperature of hydro-thermal reaction is 200 DEG C, hydro-thermal reaction when
Between be 2h.
In the step 4 of the thermal insulation coatings of resistance to cold water pipe preparation method, 40 DEG C are warming up to, is incubated 2.5h.
The microcrystalline cellulose is prepared by cellulose by acidization, and its preparation method is：By cellulose and necessarily
It is placed on after amount deionized water mixing in ice bath, the concentrated sulfuric acid is added dropwise while stirring until 0.5mol/L, 90 are heated to by mixed liquor
DEG C, 5min is heated, temperature is quick after reaching to be stirred to acidolysis reaction 20min so as to obtain portions microcrystalline cellulose, stops heating
And be rapidly added the dilution of 10 times of deionized waters with terminating reaction, by gained suspension be put into supercentrifuge 5000rpm/min from
Heart 10min, supernatant liquor is removed afterwards, stir to form new suspension in the deionized water for adding equivalent into precipitation, continued high
Speed centrifugation 10min removes supernatant liquor, so centrifuges 4 times altogether repeatedly until being produced without precipitation；With bag filter to last time from
Suspension obtained by the heart is dialysed, until the PH of dialyzate no longer changes, microcrystalline cellulose is obtained finally by freeze-drying
Element.
The extension agent composition includes：8 parts of PVC paste resin, 3 parts of PLA, 11 parts of saualane, 12 parts of flyash,
9 parts of Sodium Polyacrylate, 8 parts of epoxidized soybean oil, 13 parts of stearic amide, nano zinc powder 5- parts, 7 parts of chlorination hydroxyl aluminium, trimellitic acid
0.5 part of acid anhydride, its preparation method are：PLA and epoxidized soybean oil are added into PVC paste resin, is sufficiently mixed after micro-
Microwave treatment 5min under wave frequency rate 2450MHz, power 700W, microwave treatment 5min again is stored at room temperature after 1h, adds spiny dogfish
Alkane, Sodium Polyacrylate, stearic amide and trimellitic anhydride, continue microwave treatment 5min after being well mixed, be transferred to immediately after-
Freezing stands 3h in 5-0 DEG C of environment, then adds flyash, nano zinc powder and chlorination hydroxyl aluminium, and is heated to 95-120 DEG C of insulation
15min is mixed, gained mixture, which is transferred in nano-level grinder, to be ground, and produces extension agent.
Embodiment 2：
A kind of preparation method for the thermal insulation coatings of resistance to cold water pipe：Its composition includes the raw material of following number：
14 parts of isopropyl acetate, 7 parts of anthracene sesame oil, 5 parts of Triethyleneglycol di n heptanoate, 11 parts of PVC paste resin, epoxy
9 parts of oil extracted from rice husks acid butyl ester, 12 parts of mineral oil, 30 parts of polytetrafluoroethylene (PTFE), 6 parts of organo-bismuth antioxidant, 12 parts of cupric oxide powder, silane 11
Part, 7 parts of antioxygen auxiliary agent, 9 parts of propylene asphaltic resin, 16 parts of hard polyurethane foams, 9 parts of 3,4- dimethyl pyrazoles hydrochlorate, aluminic acid
17 parts of sodium, 9 parts of polyglyceryl fatty acid ester, 8 parts of p-methyl benzenesulfonic acid, 10 parts of terpene resin, 7 parts of triphenyl phosphate, microcrystalline cellulose
8 parts of element, 14 parts of extension agent, 7 parts of aqueous slkali.
In the thermal insulation coatings of resistance to cold water pipe raw material, antioxygen auxiliary agent includes by weight：22 parts of 2- methyl heptanes, N- isopropyls-
12 parts of N- phenyl-pphenylenediamines, 4 parts of foaming agent OBSH, 16 parts of ammonium hydrogen carbonate.
In the thermal insulation coatings of resistance to cold water pipe raw material, organo-bismuth antioxidant includes by weight：2.5 parts of zinc oxide, laurate bismuth 3
Part, 4 parts of aluminum stearate, 6 parts of urea, polysiloxanes -3 parts of more alkoxies ether copolymer.
The preparation method for the thermal insulation coatings of resistance to cold water pipe is as follows：
1st, polytetrafluoroethylene (PTFE), mineral oil 1 are added into high-temperature smelting pot and is warming up to 327 DEG C, heating simultaneously 2000rpm/min stirrings
Melted completely to polytetrafluoroethylene (PTFE), the hard polyurethane for having shredded a width of 5-10cm × 5-10cm that grows up is added in backward fused materials
Ester foam and isopropyl acetate, synchronized stirring until hard polyurethane foams melting is complete, after will be well mixed material place
Melt in stove 260 DEG C and preserve that to obtain material I stand-by；
2nd, 3,4- dimethyl pyrazoles hydrochlorate, sodium aluminate, polyglyceryl fatty acid ester are added into organo-bismuth antioxidant, cupric oxide powder
End, heat 65 DEG C and dissolve and be well mixed mixed material, propylene asphaltic resin is then added dropwise, then heats up, and add residue to have
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, triphenyl phosphate, microcrystalline cellulose are heated into 75 DEG C to be well mixed, then carry out hydro-thermal reaction,
Add remaining cupric oxide powder, be washed out, dry, add 8 parts of p-methyl benzenesulfonic acid and be well mixed, heating, temperature-rise period
Middle addition aqueous slkali maintains 7.5 to mixed solution Ph, is incubated afterwards, does not stop to stir 30min in insulating process, and rear stand cools down,
Washing, without phosphate anion, is dried into filtrate, and grinding obtains organic filler；
4th, material I is warming up to molten condition, adds material II, organic filler and anthracene sesame oil, two positive enanthic acid of triethylene glycol
After ester is well mixed, it is subsequently added into PVC paste resin, epoxyfuoic-oleic, extension agent and is well mixed, then add silicon
Alkane, antioxygen auxiliary agent 1600rpm/min, which are 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 90 DEG C it is stand-by.
In the step 2 of the thermal insulation coatings of resistance to cold water pipe preparation method, 43 DEG C are warming up to, flow back 9h.
In the step 3 of the thermal insulation coatings of resistance to cold water pipe preparation method, the temperature of hydro-thermal reaction is 200 DEG C, hydro-thermal reaction when
Between be 2h.
In the step 4 of the thermal insulation coatings of resistance to cold water pipe preparation method, 45 DEG C are warming up to, is incubated 2.5h.
The microcrystalline cellulose is prepared by cellulose by acidization, and its preparation method is：By cellulose and necessarily
It is placed on after amount deionized water mixing in ice bath, the concentrated sulfuric acid is added dropwise while stirring until 0.25mol/L, 80 are heated to by mixed liquor
DEG C, 5min is heated, temperature is quick after reaching to be stirred to acidolysis reaction 15min so as to obtain portions microcrystalline cellulose, stops heating
And be rapidly added the dilution of 10 times of deionized waters with terminating reaction, by gained suspension be put into supercentrifuge 5000rpm/min from
Heart 10min, supernatant liquor is removed afterwards, stir to form new suspension in the deionized water for adding equivalent into precipitation, continued high
Speed centrifugation 10min removes supernatant liquor, so centrifuges 4 times altogether repeatedly until being produced without precipitation；With bag filter to last time from
Suspension obtained by the heart is dialysed, until the PH of dialyzate no longer changes, microcrystalline cellulose is obtained finally by freeze-drying
Element.
The extension agent composition includes：14 parts of PVC paste resin, 3 parts of PLA, 4 parts of saualane, 11 parts of flyash,
8 parts of Sodium Polyacrylate, 9 parts of epoxidized soybean oil, 10 parts of stearic amide, 9 parts of nano zinc powder, 10 parts of chlorination hydroxyl aluminium, trimellitic acid
0.5 part of acid anhydride, its preparation method are：PLA and epoxidized soybean oil are added into PVC paste resin, is sufficiently mixed after micro-
Microwave treatment 5min under wave frequency rate 2450MHz, power 700W, microwave treatment 5min again is stored at room temperature after 1h, adds spiny dogfish
Alkane, Sodium Polyacrylate, stearic amide and trimellitic anhydride, continue microwave treatment 5min after being well mixed, be transferred to immediately after-
Freezing stands 3h in 5-0 DEG C of environment, then adds flyash, nano zinc powder and chlorination hydroxyl aluminium, and is heated to 95-120 DEG C of insulation
15min is mixed, gained mixture, which is transferred in nano-level grinder, to be ground, and produces extension agent.
To carrying out experiment investigation respectively in embodiment provided by the invention, by embodiment 1 and the made resistance to cold water pipe of embodiment 2
Thermal insulation coatings are investigated, the reference GB-T9756-2009 and HG/T3362-203 standard detections thermal insulation coatings of resistance to cold water pipe, as a result
As shown in table 1；
The thermal insulation coatings of resistance to cold water pipe of table 1 investigate result
Wherein：Thermal conductivity factor refers under the conditions of steady heat transfer, material thick 1m, the temperature difference of both side surface for 1 degree (K,
DEG C), in 1 hour, by the heat of 1 square metre of area transmission, unit for watt/ meter Du (W/mK, is herein available DEG C of K
Instead of).
The thermal insulation coatings of resistance to cold water pipe 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 paint ingredient 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 the thermal insulation coatings of resistance to cold water pipe can be used for waterway pipe in the protection of each position and each flex point, can close installation
Water pipe around, not by external environment because low temperature high temperature repeatedly temperature difference cataclysm and crack, the damage such as breach, protected outside water pipe
Sheath is durable, and service life is permanent, can reduce water pipe protection input economic cost, cost-effective.
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 (4)
- A kind of 1. preparation method for the thermal insulation coatings of resistance to cold water pipe, it is characterised in that：The thermal insulation coatings of resistance to cold water pipe include following number Raw material：Isopropyl acetate 5-20 parts, anthracene sesame oil 4-17 parts, Triethyleneglycol di n heptanoate 3-10 parts, PVC paste resin 4-18 Part, epoxyfuoic-oleic 3-19 parts, mineral oil 2-19 parts, polytetrafluoroethylene (PTFE) 23-50 parts, organo-bismuth antioxidant 2-16 parts, oxygen Change copper powders 2-40 parts, silane 5-21 parts, antioxygen auxiliary agent 2-10 parts, propylene asphaltic resin 4-11 parts, hard polyurethane foams 6- 20 parts, 3,4- dimethyl pyrazole hydrochlorate 1-13 parts, sodium aluminate 15-30 parts, polyglyceryl fatty acid ester 2-10 parts, p-methyl benzenesulfonic acid 8-18 parts, terpene resin 5-20 parts, triphenyl phosphate 2-10 parts, microcrystalline cellulose 2-20 parts, extension agent 10-30 parts, aqueous slkali 10-17 parts.In the thermal insulation coatings of resistance to cold water pipe raw material, the 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 the thermal insulation coatings of resistance to cold water pipe raw material, the 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.
- 2. the preparation method of the thermal insulation coatings of resistance to cold water pipe according to claim 1, it is characterised in that：Resistance to cold water pipe insulation applies The preparation method of material is as follows：(1) polytetrafluoroethylene (PTFE) 23-50 parts, mineral oil 2-19 parts part, are added into high-temperature smelting pot and are warming up to 327-350 DEG C, heating And 1000-2000rpm/min is stirred to polytetrafluoroethylene (PTFE) and melted completely, added in backward fused materials and shredded a width of 5- of growth 10cm × 5-10cm hard polyurethane foams 6-20 part and isopropyl acetate 5-20 parts, synchronized stirring is until rigid polyurethane foam Foam melting is complete, after well mixed material is placed melt in stove 200-327 DEG C and preserve that to obtain material I stand-by；(2), 3,4- dimethyl pyrazole hydrochlorate 1-13 parts, sodium aluminate 15-30 parts, polyglyceryl fatty acid ester 2-10 parts are added organic Bismuth antioxidant 2-10 parts, cupric oxide powder 2-20 parts, heat 30-70 DEG C and dissolve and be well mixed mixed material, be then added dropwise third Alkene asphaltic resin 4-11 parts, are then heated up, and add remaining organo-bismuth antioxidant backflow, and nitrogen protection is carried out in reflux course, Then clean, vacuum drying obtains material II；(3) terpene resin 5-20 parts, 7 parts of triphenyl phosphate, microcrystalline cellulose 2-20 parts, are heated into 40-80 DEG C to be well mixed, connect Carry out hydro-thermal reaction, remaining cupric oxide powder is added, is washed out, is dried, adds the mixing of p-methyl benzenesulfonic acid 8-18 parts Uniformly, heat up, aqueous slkali 10-17 parts are added in temperature-rise period and maintain 6.5-8.5 to mixed solution Ph, rear insulation, were incubated Do not stop to stir 25-40min in journey, it is rear to stand cooling, wash into filtrate without phosphate anion, dry, grinding obtains organic fill out Material；(4) material I, is warming up to molten condition, is adding material II, organic filler and anthracene sesame oil 4-17 parts, triethylene glycol two just After heptanoate 3-10 parts are well mixed, it is subsequently added into PVC paste resin 4-18 parts, epoxyfuoic-oleic 3-19 parts, extends Agent 10-30 parts are well mixed, and then add silane 5-21 parts, antioxygen auxiliary agent 2-10 parts 1000-2000rpm/min is stirred It is even to produce cold water water pipe heat insulation coating, and by cold water water pipe heat insulation coating be stored in holding furnace 50-100 DEG C it is stand-by.
- 3. the preparation method of the thermal insulation coatings of resistance to cold water pipe according to claim 2, it is characterised in that：The microcrystalline cellulose It is prepared by cellulose by acidization, its preparation method is：It is placed on after cellulose is mixed with a certain amount of deionized water In ice bath, the concentrated sulfuric acid is added dropwise while stirring until 0.1-1.0mol/L, is heated to 30-90 DEG C, heating 0-5min, temperature by mixed liquor Degree is quick after reaching to be stirred to acidolysis reaction 2-30min so as to obtain portions microcrystalline cellulose, stops heating and being rapidly added 10 Gained suspension is put into supercentrifuge 5000-12000rpm/min centrifugations 5- by the dilution of times deionized water with terminating reaction 20min, supernatant liquor is removed afterwards, stir to form new suspension in the deionized water for adding equivalent into precipitation, continue at a high speed Centrifuge 2-15min and remove supernatant liquor, so centrifuge 4-6 times altogether repeatedly until being produced without precipitation；With bag filter to last time The suspension of centrifugation gained is dialysed, until the PH of dialyzate no longer changes, crystallite fibre is obtained finally by freeze-drying Dimension element.
- 4. the preparation method of the thermal insulation coatings of resistance to cold water pipe according to claim 3, it is characterised in that：The extension agent composition Including：PVC paste resin 4-18 parts, PLA 3-6 parts, saualane 2-14 parts, flyash 2-14 parts, Sodium Polyacrylate 1- 12 parts, epoxidized soybean oil 1-13 parts, stearic amide 1-21 parts, nano zinc powder 5-10 parts, chlorination hydroxyl aluminium 5-11 parts, trimellitic acid Acid anhydride 0.3-0.5 parts, its preparation method are：PLA and epoxidized soybean oil are added into PVC paste resin, after being sufficiently mixed The microwave treatment 5min under microwave frequency 2450MHz, power 700W, microwave treatment 5min again is stored at room temperature after 1h, is added Saualane, Sodium Polyacrylate, stearic amide and trimellitic anhydride, continue microwave treatment 5min after being well mixed, immediately after It is transferred to freezing in -5-0 DEG C of environment and stands 3h, then adds flyash, nano zinc powder and chlorination hydroxyl aluminium, and be heated to 95-120 DEG C Insulation mixing 15min, gained mixture, which is transferred in nano-level grinder, to be ground, and produces extension agent.
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Application publication date: 20180306 |