CN103897142B - Casting type foaming-in-site deep-cooling heat insulating material for valve - Google Patents
Casting type foaming-in-site deep-cooling heat insulating material for valve Download PDFInfo
- Publication number
- CN103897142B CN103897142B CN201310566616.0A CN201310566616A CN103897142B CN 103897142 B CN103897142 B CN 103897142B CN 201310566616 A CN201310566616 A CN 201310566616A CN 103897142 B CN103897142 B CN 103897142B
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- Prior art keywords
- foam
- foaming
- heat insulating
- cooling heat
- insulating material
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- 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
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
-
- 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
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1816—Catalysts containing secondary or tertiary amines or salts thereof having carbocyclic 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
- C08G18/28—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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
-
- 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
- C08G2101/00—Manufacture of cellular products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to a casting type foaming-in-site deep-cooling heat insulating material for a valve and aims at providing a forming deep-cooling heat insulating material for the valve. The forming deep-cooling heat insulating material can be prepared under the ultra-low-temperature casting type site environment, the foaming is safe and stable and no holes and core burning occur on foam. The casting type foaming-in-site deep-cooling heat insulating material is prepared by foaming a material A and a material B, wherein the material A comprises the following material in percentage by weight: 33.25-35.25% of 403 polyether, 33.25-35.25% of 835 polyether, 3.3-3.7% of foam stabilizing agent (silicon oil), 4.3-4.7% of catalyst (Dimethyl Cyclohexyl Amine), 16-17% of foaming agent (Dichlorofluoroethane), 5.7-6.3% of flame retardant (Dimethyl Methylphosphonate) and 0.9-1.1% of auxiliary material; and the material B is polydiphenyl methylene diphenyl diisocyanate.
Description
Technical field
The present invention relates to a kind of Cryo Heat Insulation material, more particularly to a kind of watering-type foam-in-place valve deep cooling
Heat-insulating material.
Background technology
At present valve expanded material used in valve cold insulation technology is polyurethane（Polyurethane, PU）Firmly
Matter foamed plastics.By foam-in-place（A expects to be mixed with B material scene, in pouring prefabricated valve box into）
To complete cold insulation structure, and reach cold insulation effect.
The material that PU now foams is double-component：
A expects（White material）Polyether composition-and with PPG as major ingredient, foam stabiliser is added, is combined and is urged
Other auxiliary material combinations such as agent, foaming agent are produced.
B expects（Black material）Isocyanates-polymeric diphenylmethane diisocyanate
（Diphenyl-methane-diisocyanate, MDI）.
Cryo Equipment is generally used for using this scheme（- 50～-60 DEG C）Project in, but when to be used for temperature lower
（-162℃）Liquefied natural gas（Liquefied Natural Gas, LNG）In project, what PU now foamed
Can there is foaming not exclusively because temperature is too low in material, and the phenomenon in cavity occurs in foam, and affects cold insulation effect.
The content of the invention
The technical problem to be solved in the present invention be to provide one kind can ultra-low temperature surroundings issue finish it is complete and stable,
Foam occurs without empty and heartburn watering-type foam-in-place valve Cryogenic Thermal Insulating Materials.
It is the watering-type foam-in-place valve Cryogenic Thermal Insulating Materials of the present invention up to above-mentioned purpose, by A material and B material
Foaming is prepared from, wherein the A material comprising 33.25～35.25% 403 polyethers, 33.25～35.25%
835 polyethers, 3.3～3.7% foam stabiliser silicone oil, 4.3～4.7% catalyst dimethyl cyclohexyl amine,
16～17% fluorine dichloroethanes of foaming agent one, 5.7～6.3% fire retardant dimethyl methyl phosphonate and 0.9～
1.1% auxiliary material, the B material are polymeric diphenylmethane diisocyanate.
Wherein described auxiliary material is the mixed of water, stannous octoate and tetrabromo-phthalate glycol three's arbitrary proportion
Compound.
Wherein described A material and B material weight ratios are 1:1.
The preparation method difference from prior art of watering-type foam-in-place valve Cryogenic Thermal Insulating Materials of the present invention
It is that the present invention achieves following technique effect：In addition to foaming completely under except general low temperature environment can be met,
Can also be in ultralow temperature（-196℃）The stable and complete of foaming is realized under environment, foam occurs without cavity.
Description of the drawings
Fig. 1 is the watering-type foam-in-place valve Cryogenic Thermal Insulating Materials compares figure under different catalysts consumption.
（It is left）：Beyond catalyst amount of the present invention；（In）Catalyst amount of the present invention：（It is right）：Existing skill
Art catalyst amount.
Specific embodiment
With reference to embodiments, above-mentioned to the present invention and other technical characteristic and advantage are made in more detail
It is bright.
Embodiment 1
Preprepared 240g A1 material and 240g B material are poured in stirring container and be stirred at room temperature
It is even, start to foam after 21 seconds and pour into equipped with liquid nitrogen（-196℃）Foaming vessel in foam, observation 120
Foaming process in second, continues waiting for 3 minutes or more long time, and the formula materials can not be in liquid nitrogen ring
Foam completely in border, wherein the A1 is expected by 403 polyethers 84g, 835 polyethers 84g, foam stabiliser silicon
Oily 8.4g, catalyst dimethyl cyclohexyl amine 7.2g, the fluorine dichloroethanes 39.6g of foaming agent one, fire retardant methylphosphine
Dimethyl phthalate 14.4g and auxiliary material 2.4g（Water 0.4g, stannous octoate 1g and tetrabromo-phthalate glycol
1g）, the B material are polymeric diphenylmethane diisocyanate.
Embodiment 2
Preprepared 240g A2 material and 240g B material are poured in stirring container and be stirred at room temperature
It is even, just start to foam and be poured into equipped with liquid nitrogen after 19 seconds（-196℃）Foaming vessel in foam, see
The foaming process in 116 seconds is examined, 3 minutes or more long time is continued waiting for, the formula materials can be in liquid nitrogen
Foam completely in environment, wherein the A2 is expected by 403 polyethers 82.2g, 835 polyethers 82.2g, foam stabilization
Agent silicone oil8.4g, catalyst dimethyl cyclohexyl amine 10.8g, the fluorine dichloroethanes 39.6g of foaming agent one, fire retardant
Dimethyl methyl phosphonate 14.4g and auxiliary material 2.4g（Water 0.4g, stannous octoate 1g and four Australia's phthalic acids
Esterdiol 1g）, the B material are polymeric diphenylmethane diisocyanate.
Embodiment 3
Preprepared 240g A3 material and 240g B material are poured in stirring container and be stirred at room temperature
It is even, just start to foam and be poured into equipped with liquid nitrogen after 15 seconds（-196℃）Foaming vessel in foam, see
The foaming process in 104 seconds is examined, 3 minutes or more long time is continued waiting for, the formula materials can be in liquid nitrogen
Foam completely in environment, wherein the A3 is expected by 403 polyethers 81.6g, 835 polyethers 81.6g, foam stabilization
Agent silicone oil 8.4g, catalyst dimethyl cyclohexyl amine 12g, the fluorine dichloroethanes 39.6g of foaming agent one, fire retardant first
Base dimethyl phosphonate 14.4g and auxiliary material 2.4g（Water 0.4g, stannous octoate 1g and four Australia's phthalic acid esters
Glycol 1g）, the B material are polymeric diphenylmethane diisocyanate.
Table 1 is embodiment 1（Raw catalyst consumption formula materials）With embodiment 2（Catalyst amount of the present invention
Formula materials）Foaming materials result and performance parameter prepared by two kinds of formulas, it is former as can be seen from the table
The former foaming formulation of A1+B material compositions can not foam completely under ultralow temperature, and the A2+B material groups after newly improving
Into new foaming formulation under ultralow temperature（-196℃）Can foam completely, and its technical requirements bulk density
For 44～54kg/m3, thermal conductivity factor≤0.03W/M*K, compression strength >=0.15MPa, be entirely capable of meet
LNG（- 162 DEG C of low temperature）The requirement of project；And the heat conduction of bubble formula materials primary for the A1+B not detected
Coefficient will be far longer than 0.03W/M*K certainly（It is known that for the bigger thermal conductivity factor of PU density of material more
It is high）, and density has substantially exceeded 54kg/m3Maximum restriction, LNG can not have been met（Low temperature -162
℃）The requirement of project.
Embodiment 3 exceeds catalyst amount formula materials of the present invention（A3+B）, appearance do not see there is what defect,
Inner core has cavity after cutting because of foam（It is heartburn）, and the material size after cutting（Remove heartburn）Up to not
It is off quality to detection specification（Density unevenness, resistance to compression inequality, heat conduction are uneven）Therefore do not detect, show
So it is used to be difficult to find during practical operation, and heartburn position cannot be determined, it is impossible to meets LNG（Low temperature -162
℃）The requirement of project.
Material property table after the original formulation material of table 1 and inventive formulation foaming materials situation and foaming
Embodiment described above is only that the preferred embodiment of the present invention is described, not to this
Bright scope is defined, on the premise of without departing from design spirit of the present invention, those of ordinary skill in the art
The various modifications made to technical scheme and improvement, all should fall into claims of the present invention determination
Protection domain in.
Claims (3)
1. a kind of watering-type foam-in-place valve Cryogenic Thermal Insulating Materials, it is characterised in that：It is to be ready in advance
A material and B material pour in stirring container and be stirred at room temperature uniform, start to foam and be poured into equipped with -196
DEG C liquid nitrogen foaming vessel in foam and be prepared from, wherein A material are comprising the 403 of 33.25～35.25%
Polyethers, 33.25～35.25% 835 polyethers, 3.3～3.7% foam stabiliser silicone oil, 4.3～4.7%
Catalyst dimethyl cyclohexyl amine, 16～17% the fluorine dichloroethanes of foaming agent one, 5.7～6.3% fire retardant first
Base dimethyl phosphonate and 0.9～1.1% auxiliary material, the B material are polymeric diphenylmethane diisocyanate.
2. watering-type foam-in-place valve Cryogenic Thermal Insulating Materials according to claim 1, it is characterised in that：
The auxiliary material is the mixture of water, stannous octoate and tetrabromo-phthalate glycol three's arbitrary proportion.
3. watering-type foam-in-place valve Cryogenic Thermal Insulating Materials according to claim 1, it is characterised in that：
The A material are 1 with B material weight ratios:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566616.0A CN103897142B (en) | 2013-11-13 | 2013-11-13 | Casting type foaming-in-site deep-cooling heat insulating material for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566616.0A CN103897142B (en) | 2013-11-13 | 2013-11-13 | Casting type foaming-in-site deep-cooling heat insulating material for valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103897142A CN103897142A (en) | 2014-07-02 |
| CN103897142B true CN103897142B (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310566616.0A Active CN103897142B (en) | 2013-11-13 | 2013-11-13 | Casting type foaming-in-site deep-cooling heat insulating material for valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN103897142B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397707A (en) * | 2016-08-31 | 2017-02-15 | 天津市管道工程集团有限公司 | Polyurethane material for reinforcement and restoration of foundation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079803A (en) * | 2009-11-27 | 2011-06-01 | 上海东大聚氨酯有限公司 | Full-water-type combined polyether and application method thereof, and polyurethane rigid foam composition |
-
2013
- 2013-11-13 CN CN201310566616.0A patent/CN103897142B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079803A (en) * | 2009-11-27 | 2011-06-01 | 上海东大聚氨酯有限公司 | Full-water-type combined polyether and application method thereof, and polyurethane rigid foam composition |
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| Publication number | Publication date |
|---|---|
| CN103897142A (en) | 2014-07-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB02 | Change of applicant information |
Address after: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Applicant after: China Global Engineering Co. Ltd. Applicant after: Zhejiang Zhenshen Thermal Insulation Technology Co., Ltd. Address before: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Applicant before: China Huanqiu Engineering Co. Applicant before: Zhejiang Zhenshen Thermal Insulation Technology Co., Ltd. |
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| GR01 | Patent grant |