CN102391775A - High-temperature-resistant composite material for polyurethane heat-preserving pipeline - Google Patents
High-temperature-resistant composite material for polyurethane heat-preserving pipeline Download PDFInfo
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- CN102391775A CN102391775A CN2011102714604A CN201110271460A CN102391775A CN 102391775 A CN102391775 A CN 102391775A CN 2011102714604 A CN2011102714604 A CN 2011102714604A CN 201110271460 A CN201110271460 A CN 201110271460A CN 102391775 A CN102391775 A CN 102391775A
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Abstract
The invention discloses a high-temperature-resistant composite material for a polyurethane heat-preserving pipeline. The high-temperature-resistant composite material for the polyurethane heat-preserving pipeline comprises the following components in parts by weight: 1) 10 to 60 parts of polyester polyol with hydroxyl value of 150 to 300 mg KOH/g, 2) 15 to 30 parts of polyester polyol with hydroxyl value of 150 to 250 mg KOH/g, 3) 25 to 60 parts of polyether polyol with hydroxyl value of 100 to 500 mg KOH/g, 4) 0.5 to 3.0 parts of catalyst, 5) 1.0 to 5.0 parts of foam stabilizing agent, 6) 10 to 30 parts of foaming agent, 7) 1.0 to 5.0 parts of water, 8) 1.0 to 6.0 parts of exothermal agent and 9) 150 to 230 parts of isocyanate. The composite material for the polyurethane heat-preserving pipeline has excellent high temperature resistance, does not lose mechanical properties at the high temperature of above 120 DEG C and is not carbonized at the high temperature of 200 DEG C.
Description
Technical field
The present invention relates to a kind of polyurethane coating combination material, particularly relate to a kind of high temperature resistant polyurethane heat-insulation pipeline with the combination material.
Background technology
Along with the Application Areas expansion of polyurethane foam, the whole world is increasing rapidly the demand of urethane foam.
Hard polyurethane foams thermal conductivity in lagging material is minimum, and heat insulation effect is best, so it is widely used in the thermal insulation layer of refrigerator, freezer, building board, utilidor, thermal container etc.
Hard polyurethane foams is through a react to each other base polymer of formation-NHCOO-repeated structural unit of-OH and-NCO; It can make the mechanical property forfeiture of polymkeric substance under high temperature more than 120 ℃; So use temperature is before the foaming of the utilidor more than 120 ℃; Behind the heat-stable materials such as general needs winding spun glass, carry out polyurethane foam again.
For manufacturers; Reducing cost, enhancing productivity is the direction of making great efforts always; And the hard polyurethane foams non-refractory is to cause adding the main factor that twines links such as spun glass in high temperature resistant polyurethane heat-insulation pipeline production process, is the major reason that improves production cost, reduces production efficiency.
Summary of the invention
The objective of the invention is to overcome polyurethane heat-insulation pipeline of the prior art with combination material non-refractory defective, provide a kind of high temperature resistant polyurethane heat-insulation pipeline, can prepare resistant to elevated temperatures utilidor and use rigid polyurethane foam with the combination material.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high temperature resistant polyurethane heat-insulation pipeline comprises the component of following weight part with the combination material:
1) hydroxyl value is the polyester polyol of 150 ~ 300mgKOH/g: 10 ~ 60 parts;
2) hydroxyl value is the polyester polyol of 150 ~ 250mgKOH/g: 15 ~ 30 parts;
3) hydroxyl value is the polyether glycol of 100 ~ 500mgKOH/g: 25 ~ 60 parts;
4) catalyzer: 0.5 ~ 3.0 part;
5) suds-stabilizing agent: 1.0 ~ 5.0 parts;
6) whipping agent: 10 ~ 30 parts;
7) water: 1.0 ~ 5.0 parts;
8) heat-generating agent is 1.0 ~ 6.0 parts;
9) isocyanic ester: 150 ~ 230 parts.
Described catalyzer is one or more in potassium octanoate, Potassium ethanoate, metal species catalyzer or the amines catalyst; The metal catalyst T-9 of described metal species catalyzer such as U.S. gas products company, T-45 or T-11 etc.; Described amines catalyst such as five methyl diethylentriamine or two (dimethylamino is base) ether.
Described suds-stabilizing agent is a kind of tensio-active agent, adopts the silicon class tensio-active agent that contains the Si-C structure.Suds-stabilizing agent can be buied from market, comprises the suds-stabilizing agent that dolantin generation wound company produces, like AK8805, AK8830, AK8818 etc.; Suds-stabilizing agent B8462, B8461, B8544, the B-8494 of Degussa (Degusa); The L6900 of Mai Tu company (Momentive), L6863 etc.
Described whipping agent is selected from HCFC-141b, HFC-245fa, one or more among the HFC-365mfc.
Described heat-generating agent is a carbonic ether, preferred NSC 11801, propylene carbonate etc.
The preferred NCO content of described isocyanic ester is 31 ~ 32% polymerization 4,4-ditolyl methane vulcabond.
High temperature resistant hard polyurethane foams of the present invention is compared with the combination material with polyurethane heat-insulation pipeline of the prior art, has good temperature resistance.Can not lose its mechanical property under the high temperature more than 120 ℃, 200 ℃ of high temperature no carbonizations down.Hard polyaminoester combination material of the present invention is used for the utilidor material, need not to twine heat-stable materials such as spun glass, can effectively reduce production costs, enhance productivity.
Describe the present invention below in conjunction with specific embodiment.Protection scope of the present invention is not exceeded with embodiment, but is limited claim.
Embodiment
Embodiment 1
A kind of high temperature resistant polyurethane heat-insulation pipeline comprises the component of following weight part with the combination material:
1) polyester polyol A:30 part, hydroxyl value are 150 ~ 300mgKOH/g;
2) polyester polyol B:30 part, hydroxyl value are 150 ~ 250mgKOH/g;
3) polyether glycol C:40 part, hydroxyl value are 100 ~ 500mgKOH/g;
4) catalyzer: 1.3. part, wherein metal catalyst T-9 is 0.8 part, 0.5 part of amines catalyst five methyl diethylentriamine;
5) suds-stabilizing agent: 2.0 parts;
6) 15.0 parts of whipping agent: HCFC-141b;
7) water: 1.3 parts;
8) heat-generating agent: 3.0 parts of NSC 11801s;
9) isocyanic ester: NCO content is 31 ~ 32% polymerization 4,225 parts of 4-ditolyl methane vulcabond, isocyanate index 330.
Above-mentioned polyurethane heat-insulation pipeline is seen table 1 with its performance of combination material.
Embodiment 2
A kind of high temperature resistant polyurethane heat-insulation pipeline comprises the component of following weight part with the combination material:
1) polyester polyol A:20 part, hydroxyl value are 150 ~ 300mgKOH/g;
2) polyester polyol B:30 part, hydroxyl value are 150 ~ 250mgKOH/g;
3) polyether glycol C:50 part, hydroxyl value are 100 ~ 500mgKOH/g;
4) catalyzer: 1.3. part, wherein metal catalyst T-45 is 0.8 part, 0.5 part in amines catalyst two (dimethylamino is base) ether;
5) suds-stabilizing agent: 2.0 parts;
6) 15.0 parts of whipping agent: HCFC-141b;
7) water: 1.3 parts;
8) heat-generating agent: 3.0 parts of propylene carbonates;
9) isocyanic ester: NCO content is 31 ~ 32% polymerization 4,225 parts of 4-ditolyl methane vulcabond, isocyanate index 330.
Above-mentioned polyurethane heat-insulation pipeline is seen table 1 with its performance of combination material.
Comparative example
A kind of polyurethane heat-insulation pipeline comprises the component of following weight part with the combination material:
1) polyether glycol C:45, hydroxyl value is 100 ~ 500mgKOH/g;
2) polyether glycol D:55 part, general rigid polyurethane foam is used polyethers;
3) amines catalyst: 1.0 parts of five methyl diethylentriamines;
4) suds-stabilizing agent: 2.0 parts;
5) 15 parts of whipping agent: HCFC-141b;
6) water: 1.3 parts;
7) heat-generating agent: 3.0 parts of NSC 11801s;
8) isocyanic ester: NCO content is 31 ~ 32% polymerization 4,183 parts of 4-ditolyl methane vulcabond, isocyanate index 330.
Above-mentioned polyurethane heat-insulation pipeline is seen table 1 with its performance of combination material.
Table 1 polyurethane heat-insulation pipeline is with combination material performance
Isocyanate index is meant the weight ratio of actual add-on of isocyanic ester and Theoretical Calculation amount in the last table.
Thermal test testing method in the last table: 200 ℃ of baking ovens keepings of adding were confirmed thermotolerance after 120 hours after the combination material of use the foregoing description and comparative example prepared polyurethane foam.Product size is 100 * 100 * 50mm.
Last table SMIS density, thermal conductivity, compressive strength, rate of closed hole, interior pipe cohesive force are all measured by national standard.
Last table 1 shows that the polyurethane heat-insulation pipeline of the embodiment of the invention is compared with comparative example with the combination material, has better high thermal resistance, and has favorable mechanical performance and heat-insulating property.
Described embodiment helps understanding of the present invention and enforcement; Be not that formation is to any restriction of the present invention; Every content that does not break away from technical scheme of the present invention; Any being equal to or equivalent variation or replacement of within the scope of the present invention embodiment being carried out, all still belong in the scope of technical scheme of the present invention.
Claims (8)
1. a high temperature resistant polyurethane heat-insulation pipeline is characterized in that comprising the component of following weight part with the combination material:
1) hydroxyl value is the polyester polyol of 150 ~ 300mgKOH/g: 10 ~ 60 parts;
2) hydroxyl value is the polyester polyol of 150 ~ 250mgKOH/g: 15 ~ 30 parts;
3) hydroxyl value is the polyether glycol of 100 ~ 500mgKOH/g: 25 ~ 60 parts;
4) catalyzer: 0.5 ~ 3.0 part;
5) suds-stabilizing agent: 1.0 ~ 5.0 parts;
6) whipping agent is 10 ~ 30 parts;
7) water: 1.0 ~ 5.0 parts;
8) heat-generating agent is 1.0 ~ 6.0 parts;
9) isocyanic ester: 150 ~ 230 parts.
2. high temperature resistant polyurethane heat-insulation pipeline according to claim 1 is characterized in that with the combination material described catalyzer is one or more in potassium octanoate, Potassium ethanoate, metal species catalyzer or the amines catalyst.
3. high temperature resistant polyurethane heat-insulation pipeline according to claim 2 is characterized in that with the combination material described metal species catalyzer is T-9, T-45 or T-11; Described amines catalyst is five methyl diethylentriamine or two (dimethylamino is base) ether.
4. high temperature resistant polyurethane heat-insulation pipeline according to claim 1 is characterized in that with the combination material described suds-stabilizing agent is the silicon class tensio-active agent that contains the Si-C structure.
5. high temperature resistant polyurethane heat-insulation pipeline according to claim 1 is characterized in that with the combination material described whipping agent is selected from one or more among HCFC-141b, HFC-245fa or the HFC-365mfc.
6. high temperature resistant polyurethane heat-insulation pipeline according to claim 1 is characterized in that with the combination material described heat-generating agent is to be carbonic ether.
7. high temperature resistant polyurethane heat-insulation pipeline according to claim 6 is characterized in that with the combination material described heat-generating agent is NSC 11801 or propylene carbonate.
8. kind according to claim 1 is high temperature resistant, and the polyurethane heat-insulation pipeline is expected with combination, it is characterized in that described isocyanic ester is that NCO content is 31 ~ 32% polymerization 4,4-ditolyl methane vulcabond.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159908A (en) * | 2013-04-03 | 2013-06-19 | 天津市管道工程集团有限公司 | Polyurethane for coating and winding prefabricated directly buried insulating pipe |
| CN105371059A (en) * | 2015-12-08 | 2016-03-02 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Hard polyurethane foam plastic spraying heat preservation pipe and spraying method |
| CN106632967A (en) * | 2015-10-29 | 2017-05-10 | 中国石油化工股份有限公司 | Polyurethane composition for thermal-insulation pipeline |
| CN107266643A (en) * | 2017-07-04 | 2017-10-20 | 扬中市天正合成材料研究中心 | A kind of driver's cabin kuppe environmental protection flame retardant polyurethane foam material and preparation method |
| CN107312143A (en) * | 2017-06-29 | 2017-11-03 | 扬中市天正合成材料研究中心 | A kind of bumper environmental protection flame retardant expanded material and preparation method |
| CN107459812A (en) * | 2017-08-26 | 2017-12-12 | 安徽智博新材料科技有限公司 | Construction material based on cyclic carbonate |
| CN107474213A (en) * | 2017-06-29 | 2017-12-15 | 扬中市天正合成材料研究中心 | Thick stick environmental protection flame retardant polyurethane foam material and preparation method under a kind of bumper |
| CN108264625A (en) * | 2017-12-21 | 2018-07-10 | 万华化学集团股份有限公司 | A kind of LNG thermal insulation materials |
| CN108559385A (en) * | 2018-05-23 | 2018-09-21 | 浙江清优材料科技有限公司 | A kind of new energy resource power battery lagging casing and preparation method thereof |
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| CN105371059A (en) * | 2015-12-08 | 2016-03-02 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Hard polyurethane foam plastic spraying heat preservation pipe and spraying method |
| CN107312143A (en) * | 2017-06-29 | 2017-11-03 | 扬中市天正合成材料研究中心 | A kind of bumper environmental protection flame retardant expanded material and preparation method |
| CN107474213A (en) * | 2017-06-29 | 2017-12-15 | 扬中市天正合成材料研究中心 | Thick stick environmental protection flame retardant polyurethane foam material and preparation method under a kind of bumper |
| CN107266643A (en) * | 2017-07-04 | 2017-10-20 | 扬中市天正合成材料研究中心 | A kind of driver's cabin kuppe environmental protection flame retardant polyurethane foam material and preparation method |
| CN107459812A (en) * | 2017-08-26 | 2017-12-12 | 安徽智博新材料科技有限公司 | Construction material based on cyclic carbonate |
| CN108264625A (en) * | 2017-12-21 | 2018-07-10 | 万华化学集团股份有限公司 | A kind of LNG thermal insulation materials |
| CN108264625B (en) * | 2017-12-21 | 2020-11-24 | 万华化学集团股份有限公司 | LNG thermal insulation material |
| CN108559385A (en) * | 2018-05-23 | 2018-09-21 | 浙江清优材料科技有限公司 | A kind of new energy resource power battery lagging casing and preparation method thereof |
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Application publication date: 20120328 |