CN104403083A - PIR material for high-density cold insulation pipe bracket and preparing method thereof - Google Patents
PIR material for high-density cold insulation pipe bracket and preparing method thereof Download PDFInfo
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- CN104403083A CN104403083A CN201410699393.XA CN201410699393A CN104403083A CN 104403083 A CN104403083 A CN 104403083A CN 201410699393 A CN201410699393 A CN 201410699393A CN 104403083 A CN104403083 A CN 104403083A
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- Prior art keywords
- cold insulation
- insulation pipe
- component
- polyester polyol
- pipe carrier
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- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 6
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 27
- 239000003063 flame retardant Substances 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- -1 polyphenol isocyanate Chemical class 0.000 claims abstract description 6
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 19
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- 150000001412 amines Chemical class 0.000 claims description 5
- 125000002524 organometallic group Chemical group 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001228 polyisocyanate Polymers 0.000 claims description 2
- 239000005056 polyisocyanate Substances 0.000 claims description 2
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 2
- 239000011495 polyisocyanurate Substances 0.000 abstract description 16
- 238000005187 foaming Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 abstract description 2
- 229920000582 polyisocyanurate Polymers 0.000 abstract 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 235000013824 polyphenols Nutrition 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
- C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of polyurethane foaming plastics and particularly relates to a PIR (Polyisocyanurate Foam) material for a high-density cold insulation pipe bracket and a preparing method thereof. The PIR material consists of a component A and a component B, wherein the component A consists of polyester polyol A, polyester polyol B, a foam stabilizer, water, a catalyst and a flame retardant; polymethyl polyphenol isocyanate is used as the component B; flame retardant modified aromatic polyester polyol is used as the polyester polyol A; modified phthalic aromatic polyester polyol is used as the polyester polyol B. The PIR material has the characteristics of low thermal conductivity, high compressive strength, low water absorption rate and high flame retardance. The preparing method is reasonable in technology and easy to realize.
Description
Technical field
The invention belongs to urethane foam field, be specifically related to a kind of high-density cold insulation pipe carrier PIR material and preparation method thereof.
Background technology
High density polyurethane conduit saddle is a kind of novel energy-saving environment-friendly conduit saddle, be again HDPU cold insulation pipe carrier, there is density high, the high-performance that thermal conductivity is low and water-intake rate is low, timber can be replaced completely, this novel cold insulation pipe carrier, its structure is made up of high density polyurethane foam and steel mounting block, tool useful life longevity is long, structure is simple, processing ease is installed, be convenient to safeguard, be applicable to the support force part that working medium is the e-quipment and pipe of light hydrocarbon cryogenic piping equipment and all refrigeration and transmission refrigeration agent, and be applicable to acid or alkali environment, moist environment, as petroleum chemical plant, lng plant, freezer and central air conditioner system and other have the delivery medium of particular requirement and the special pipe support laying environment, suspension bracket.The base body foam of high-density cold insulation pipe carrier is made up of thousands of atomic little uniform independent cell, the spatially structure of honeycomb fashion, its thermal conductivity is low, ultimate compression strength is high, water-intake rate is low, there is the advantageous property that bituminous wood goods and other class backings hardly match, the most ideal material of deep cooling pipeline conduit saddle, saddle and cyrogenic equipment cushion block, at home and American-European countries be used for petrochemical industry, LNG lng plant, the conduit saddle of cold chain base and central air conditioner system, suspension and support and cushion block etc.
At present, in cryogenic insulating application process, under often there is cold condition, foams are out of shape, the problems such as base body position pipeline condensation, simultaneously in order to reach the higher fire-retardant rank of base body, needing on-the-spot interpolation fire retardant, affecting the interior slaking performance of foam, open time is caused to extend, the problems such as foam surface defect.
Present commercially available conventional high density cold insulation pipe carrier material ubiquity flame retardant resistance is low, easily occur the problem of potential safety hazard in use procedure.Meanwhile, conventional products uses polyethers system mostly, add catalyzer, fire retardant and other additives use unreasonable, cause fire block articles and ultimate compression strength low, interior detail tiny crack, cause in use stress concentration cause cracking.Meanwhile, commercially available conventional products uses pneumatogen to carry out density domination usually, and Traditional blowing agents itself containing chlorion, while producing destruction, also can have corrosive nature to line of pipes to atmospheric ozone layer, shortens pipeline work-ing life.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide the high-density cold insulation pipe carrier PIR material that a kind of thermal conductivity is low, ultimate compression strength is high, water-intake rate is low, flame retardant resistance is high, the present invention provides its preparation method simultaneously.
High-density cold insulation pipe carrier PIR material of the present invention, is made up of component A and B component, wherein:
Component A is made up of the raw material of following weight percentage:
B component is:
Many methyl polyphenyl polyisocyanate;
Polyester polyol A is flame-retardant modified Aromatic Polyester Polyols, and functionality is 2-3, molecular weight 400-500, and viscosity is 13000-17000mPa.s/25 DEG C, acid number≤2.0mgKOH/g; Preferred CF-6255 (Jiangsu Fu Sheng novel material company limited);
Polyester polyol B is modification phthalic anhydride aromatic polyester polyol, and functionality is 2-3, molecular weight 400-500, and viscosity is 2000-4500mPa.s/25 DEG C; Preferred PS-2412 (Nanjing, Nanjing Si Taipan Chemical Co., Ltd.).
The weight ratio of component A and B component is 100:150-155.
In suds-stabilizing agent, the mass percent shared by flame-retardant foam stablizer is 1.0-1.5%.Two kinds in suds-stabilizing agent preferred L6920, L6952 (Mitugao New Material Group), Dabco S14202 (air Chemicals Investment Co., Ltd) or L-6100NT (Mitugao New Material Group); Wherein, Dabco S14202 (air Chemicals Investment Co., Ltd) and L-6100NT (Mitugao New Material Group) belongs to flame-retardant foam stablizer.
The preferred deionized water of water.
Catalyzer is made up of amines catalyst and organo-metallic salt catalyzer; Preferred PC8 (the N of amines catalyst, N-dimethylcyclohexylamine), Dabco JXP508 (air Chemicals Investment Co., Ltd), Dabco JXP509 (air Chemicals Investment Co., Ltd), the preferred Dabco K15 of organo-metallic salt catalyzer (air Chemicals Investment Co., Ltd).
Fire retardant is phosphate ester flame retardants; Preferred TEP (Jiangsu Yoke Technology Co., Ltd.).
The preparation method of described high-density cold insulation pipe carrier PIR material, comprises the following steps:
(1) preparation of component A: first load weighted polyester polyol A, polyester polyol B are loaded in reactor; Add suds-stabilizing agent, deionized water, catalyzer, fire retardant, mix under normal temperature, stir 0.5-1.5h, get final product barrelling;
(2) A, B component are mixed, obtain high-density cold insulation pipe carrier PIR material.
Have prior art to compare, the present invention has following beneficial effect:
(1) component A material produces at normal temperatures, not only save energy but also reduce equipment energy consumption and loaded down with trivial details operation;
(2) simple by the technique of PIR material through high-pressure foam device fabrication high-density cold insulation pipe carrier, easy to operate by A, B component material, without destroying atmospheric layer gaseous volatilization, constant product quality, production cost is low;
(3) the present invention to arrange in pairs or groups compound flame retardant by using modification aromatic hydrocarbons flame retardant polyester polyvalent alcohol and modification phthalic anhydride aromatic polyester polyol, under the acting in conjunction of amines catalyst and organo-metallic salt catalyzer, the trimerization transformation efficiency of further raising and isocyanic ester, under the condition not using other pneumatogens, make goods foam reach high flame resistance (oxygen index 32), achieve goods life-time service stability under cryogenic;
(4) structure of material internal of the present invention spatially honeycomb fashion, its thermal conductivity is low, ultimate compression strength is high, water-intake rate is low, there is the advantageous property that bituminous wood goods and other class backings hardly match, the completely shaping complete environmental protection of poly-isocyanurate finished product base body, chlorion not containing corroded pipeline, base body position pipeline does not condense, and reduces the corrosion of pipeline, further increases long-term resistance to low temperature and the self stability of goods;
(5) after testing, high-density cold insulation pipe carrier PIR material can reach following index request:
Thermal conductivity :≤0.040W/ (m.k)
Compressive strength: >=15MPa
Water-intake rate :≤1%
Rate of closed hole: >=88%
Low-Temperature Size stability (-80 DEG C): ± 1.0%
Oxygen index: >=32
Foams chloride ion content < 0.05%
Performance reaches the performance requriements of correlation standard completely;
(6) the present invention also provides its preparation method, rational technology.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The all raw materials used in embodiment, except specified otherwise, are commercial.
Embodiment 1
(1) preparation of component A: prepare 100 kilograms of component A material, need to weigh following raw material: polyester polyol CF-6255:50 kilogram, polyester polyol PS-2412:20 kilogram, suds-stabilizing agent L6952:1 kilogram, flame-retardant foam stablizer DabcoS14202:1 kilogram, deionized water: 0.1 kilogram, PC8 (N, N-dimethylcyclohexylamine): 0.1 kilogram, Dabco JXP508:1 kilogram, Dabco JXP509:0.65 kilogram, Dabco K15:0.25 kilogram, TEP:25.9 kilogram, load weighted various raw material is loaded in reactor and stirs 0.5h, taking-up is tested, meet setting foaming parameter, obtain component A qualified product, barrelling warehouse-in is taken out from reactor,
(2) A, B component material are mixed through foaming machine by A:B=100:150 weight proportion, make high-density cold insulation pipe carrier PIR material.
Test article index is as follows:
Thermal conductivity: 0.032W/ (m.k)
Compressive strength: 17.8MPa
Water-intake rate: 0.56%
Rate of closed hole: 90%
Low-Temperature Size stability (-80 DEG C) :-0.11%
Oxygen index: 33.2%
Performance reaches the performance requriements that standard specifies completely.
Embodiment 2
(1) preparation of component A: prepare 100 kilograms of component A material, need to weigh following raw material: polyester polyol CF-6255:65 kilogram, polyester polyol PS-2412:15 kilogram, suds-stabilizing agent L6952:1.2 kilogram, flame-retardant foam stablizer DabcoS14202:1 kilogram, deionized water: 0.1 kilogram, PC8 (N, N-dimethylcyclohexylamine): 0.15 kilogram, Dabco JXP508:1 kilogram, Dabco JXP509:0.75 kilogram, Dabco K15:0.3 kilogram, TEP:15.5 kilogram, load weighted various raw material is loaded in reactor and stirs 1h, taking-up is tested, meet setting foaming parameter, obtain component A qualified product, barrelling warehouse-in is taken out from reactor,
(2) A, B component material are mixed through foaming machine by A:B=100:152 weight proportion, make high-density cold insulation pipe carrier PIR material.
Test article index is as follows:
Thermal conductivity: 0.031W/ (m.k)
Compressive strength: 16.9MPa
Water-intake rate: 0.55%
Rate of closed hole: 89%
Low-Temperature Size stability (-80 DEG C) :-0.11%
Oxygen index: 32.6%
Performance reaches the performance requriements that standard specifies completely.
Embodiment 3
(1) preparation of component A: prepare 100 kilograms of component A material, need to weigh following raw material: polyester polyol CF-6255:80 kilogram, polyester polyol PS-2412:5 kilogram, suds-stabilizing agent L6952:1.2 kilogram, flame-retardant foam stablizer L-6100NT:1 kilogram, deionized water: 0.1 kilogram, PC8 (N, N-dimethylcyclohexylamine): 0.1 kilogram, Dabco JXP508:1.1 kilogram, Dabco JXP509:0.6 kilogram, Dabco K15:0.3 kilogram, TEP:10.6 kilogram, load weighted various raw material is loaded in reactor and stirs 1.5h, taking-up is tested, meet setting foaming parameter, obtain component A qualified product, barrelling warehouse-in is taken out from reactor,
(2) A, B component material are mixed through foaming machine by A:B=100:155 weight proportion, make high-density cold insulation pipe carrier PIR material.
Test article index is as follows:
Thermal conductivity: 0.032W/ (m.k)
Compressive strength: 17.8MPa
Water-intake rate: 0.55%
Rate of closed hole: 90%
Low-Temperature Size stability (-80 DEG C) :-0.12%
Oxygen index: 32.8%
Performance reaches the performance requriements that standard specifies completely.
Claims (10)
1. a high-density cold insulation pipe carrier PIR material, is characterized in that: be made up of component A and B component, wherein:
Component A is made up of the raw material of following weight percentage:
B component is:
Many methyl polyphenyl polyisocyanate;
Polyester polyol A is flame-retardant modified Aromatic Polyester Polyols, and functionality is 2-3, molecular weight 400-500, and viscosity is 13000-17000mPa.s/25 DEG C, acid number≤2.0mgKOH/g;
Polyester polyol B is modification phthalic anhydride aromatic polyester polyol, and functionality is 2-3, molecular weight 400-500, and viscosity is 2000-4500mPa.s/25 DEG C.
2. high-density cold insulation pipe carrier PIR material according to claim 1, is characterized in that: polyester polyol A is CF-6255; Polyester polyol B is PS-2412.
3. high-density cold insulation pipe carrier PIR material according to claim 1, is characterized in that: the weight ratio of component A and B component is 100:150-155.
4. high-density cold insulation pipe carrier PIR material according to claim 1, it is characterized in that: in suds-stabilizing agent, the mass percent shared by flame-retardant foam stablizer is 1.0-1.5%.
5. high-density cold insulation pipe carrier PIR material according to claim 4, is characterized in that: suds-stabilizing agent is two kinds in L6920, L6952, Dabco S14202 or L-6100NT; Wherein, flame-retardant foam stablizer is Dabco S14202 and L-6100NT.
6. high-density cold insulation pipe carrier PIR material according to claim 1, is characterized in that: catalyzer is made up of amines catalyst and organo-metallic salt catalyzer.
7. high-density cold insulation pipe carrier PIR material according to claim 6, is characterized in that: amines catalyst is PC8, Dabco JXP508 and Dabco JXP509; Organo-metallic salt catalyzer is Dabco K15.
8. high-density cold insulation pipe carrier PIR material according to claim 1, is characterized in that: fire retardant is phosphate ester flame retardants.
9. high-density cold insulation pipe carrier PIR material according to claim 8, is characterized in that: phosphate ester flame retardants is TEP.
10. a preparation method for high-density cold insulation pipe carrier PIR material according to claim 1, is characterized in that: comprise the following steps:
(1) preparation of component A: first load weighted polyester polyol A, polyester polyol B are loaded in reactor; Add suds-stabilizing agent, water, catalyzer, fire retardant, mix under normal temperature, stir 0.5-1.5h, get final product barrelling;
(2) A, B component are mixed, obtain high-density cold insulation pipe carrier PIR material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410699393.XA CN104403083B (en) | 2014-11-27 | 2014-11-27 | High density cold insulation pipe carrier PIR materials and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699393.XA CN104403083B (en) | 2014-11-27 | 2014-11-27 | High density cold insulation pipe carrier PIR materials and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104403083A true CN104403083A (en) | 2015-03-11 |
| CN104403083B CN104403083B (en) | 2017-11-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017774A (en) * | 2017-12-22 | 2018-05-11 | 上海东大聚氨酯有限公司 | Flame retardant combination polyethers, containing its hard polyurethane foams and preparation method thereof |
| CN108299620A (en) * | 2018-02-07 | 2018-07-20 | 烟台市顺达聚氨酯有限责任公司 | A kind of polyurethane combined material, its building structure prepared cold bridge high-strength thermal insulation polyurethane material and preparation method thereof that breaks |
| CN109293868A (en) * | 2018-09-30 | 2019-02-01 | 山东诺威新材料有限公司 | It is a kind of applied to combined polyether and the high fire-retardance polyester polyol compound of foam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108017774A (en) * | 2017-12-22 | 2018-05-11 | 上海东大聚氨酯有限公司 | Flame retardant combination polyethers, containing its hard polyurethane foams and preparation method thereof |
| CN108017774B (en) * | 2017-12-22 | 2020-05-05 | 上海东大聚氨酯有限公司 | Flame-retardant combined polyether, rigid polyurethane foam containing flame-retardant combined polyether and preparation method of rigid polyurethane foam |
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| CN109293868A (en) * | 2018-09-30 | 2019-02-01 | 山东诺威新材料有限公司 | It is a kind of applied to combined polyether and the high fire-retardance polyester polyol compound of foam |
| CN110186777A (en) * | 2019-05-30 | 2019-08-30 | 浙江大学城市学院 | It is a kind of simulation soil body confining pressure under the conditions of Frozen-thawed cycled testing equipment |
| CN115926092A (en) * | 2022-11-25 | 2023-04-07 | 上海东大聚氨酯有限公司 | B1 grade, low mold temperature, quick-release polyurethane shell composite polyether and its shell preparation method |
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