CN105199373A - Compression-resistant thermal-insulation material for low-temperature pipelines and preparation method thereof - Google Patents
Compression-resistant thermal-insulation material for low-temperature pipelines and preparation method thereof Download PDFInfo
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- CN105199373A CN105199373A CN201510652330.3A CN201510652330A CN105199373A CN 105199373 A CN105199373 A CN 105199373A CN 201510652330 A CN201510652330 A CN 201510652330A CN 105199373 A CN105199373 A CN 105199373A
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Abstract
The invention relates to the technical field of thermal-insulation materials, more specifically a compression-resistant thermal-insulation material for low-temperature pipelines and a preparation method thereof. The invention is characterized in that the compression-resistant thermal-insulation material for low-temperature pipelines is prepared from the following raw materials in parts by weight: 80-90 parts of hard foam polyether glycol, 40-50 parts of polyMDI (polymethylenediphenyl diisocyanate), 10-15 parts of modified coal slag, 20-30 parts of reinforcing fiber, 0.5-1 part of barium sulfate, 1-2 parts of flame retardant, 0.1-0.8 part of waterproofing agent, 5-8 parts of phenolic resin, 2-3 parts of polyisobutylene, 2-4 parts of foaming agent and 1-2 parts of catalyst. The modified coal slag and reinforcing fiber contained in the thermal-insulation material greatly enhance the strength and compression resistance on the premise of keeping the thermal-insulation effect.
Description
Technical field:
The present invention relates to lagging material technical field, more specifically to resistance to compression lagging material that a kind of cryogenic piping uses and preparation method thereof.
Background technology:
Hard polyurethane foam be with isocyanic ester and polyethers for main raw material, under the effect of the multiple auxiliary agents such as whipping agent, catalyzer, fire retardant, mixed by specific equipment, through the high molecular polymer of high pressure painting foam-in-place.Polyurethane foam has soft bubble and hard bubbles two kinds.Soft bubble is open-celled structure, hard bubbles as unicellular structure; Soft bubble is divided into again skinning and not skinning two kinds.The major function of flexible PU foam is buffering.Flexible PU foam is usually used in sofa furniture, pillow, cushion, toy, clothes and sound insulation liner.Spray polyurethane foam is a kind of novel synthetic material with insulation and water-proof function, and its thermal conductivity is low, is equivalent to the half of extruded sheet, is that in current all lagging materials, thermal conductivity is minimum.Rigid urethane foam is mainly used in skin insulation, waterproofing and thermal insulation of roofing integration, heat preservation of refrigeration storage heat insulation, pipe insulation material, building board, refrigerator car and the heat insulation material of freezer etc.But spray polyurethane foam crushing resistance is not fine, is easily out of shape, impacts heat insulation effect after bearing gravity.
Summary of the invention:
Technical problem to be solved by this invention is to overcome resistance to compression lagging material that existing technological deficiency provides a kind of cryogenic piping to use and preparation method thereof.
Technical problem to be solved by this invention adopts following technical scheme to realize:
The resistance to compression lagging material that cryogenic piping uses, is characterized in that being made up of the raw material of following weight part: 80-90 part rigid-foam polyether polyol, 40-50 part polymeric MDI, 10-15 part modified coal slag, 20-30 part fortifying fibre, 0.5-1 part barium sulfate, 1-2 part fire retardant, 0.1-0.8 part water-resisting agent, 5-8 part resol, 2-3 part polyisobutene, 2-4 part whipping agent, 1-2 part catalyzer.
Further, described modified coal slag is made up of the raw material of following weight part: 100-110 part cinder, 2-3 part ptfe micropowder, 1-2 part ammonium sulfate, 0.5-1 part sodium lignosulfonate, 3-4 part epoxy resin, 1-1.5 part diatomite, 0.5-1 part trisodium phosphate, 1-2 part Xylo-Mucine.
Further, described modified coal slag preparation method is: cinder is sintered 3-4 hour again at 1000-1200 DEG C, is then ground into powder, adds surplus stock and stir, dry, grinding is in Powdered.
Further, described fortifying fibre comprises the component of following weight part: 50-60 part polycrystalline mullite fibre, 10-15 part mineral wool fibre, 6-11 part aluminum silicate fiber, 12-18 part boron nitride fibre, 15-24 part silicon carbide fiber, 3-7 part zirconium fiber.
A preparation method for the resistance to compression lagging material that cryogenic piping uses, is characterized in that comprising the following steps: each raw material to be fully uniformly mixed, is then poured into free foaming in mould, obtains mould base; Then, together with mould, mould base is sent in tunnel type baking oven, at temperature-gradient method: 40-45 DEG C, reaction 15-25 minute; Again at 55-65 DEG C, reaction 10-15 minute; Again at 75-85 DEG C, reaction 5-10 minute; Finally slaking 5-7 hour at 90-100 DEG C.
Lagging material obtained by the present invention contains modified coal slag and fortifying fibre, while reservation heat insulation effect, greatly strengthen again intensity and crushing resistance.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1: the resistance to compression lagging material that a kind of cryogenic piping uses, is characterized in that being made up of the raw material of following weight part: 80 parts of rigid-foam polyether polyols, 40 parts of polymeric MDIs, 10 parts of modified coal slags, 20 parts of fortifying fibres, 0.5 part of barium sulfate, 1 part of fire retardant, 0.1 part of water-resisting agent, 5 parts of resol, 2 parts of polyisobutene, 2 parts of whipping agents, 1 part of catalyzer.
Modified coal slag is made up of the raw material of following weight part: 100 parts of cinders, 2 parts of ptfe micropowders, 1 part of ammonium sulfate, 0.5 part of sodium lignosulfonate, 3 parts of epoxy resin, 1 part of diatomite, 0.5 part of trisodium phosphate, 1 part of Xylo-Mucine.
Modified coal slag preparation method is: cinder is sintered 3 hours again at 1000 DEG C, is then ground into powder, adds surplus stock and stir, dry, and grinding is in Powdered.
Fortifying fibre comprises the component of following weight part: 50 parts of polycrystalline mullite fibres, 10 parts of mineral wool fibres, 6 parts of aluminum silicate fibers, 12 parts of boron nitride fibres, 15 parts of silicon carbide fibers, 3 parts of zirconium fibers.
Embodiment 2: the resistance to compression lagging material that a kind of cryogenic piping uses, is characterized in that being made up of the raw material of following weight part: 90 parts of rigid-foam polyether polyols, 50 parts of polymeric MDIs, 15 parts of modified coal slags, 30 parts of fortifying fibres, 1 part of barium sulfate, 2 parts of fire retardants, 0.8 part of water-resisting agent, 8 parts of resol, 3 parts of polyisobutene, 4 parts of whipping agents, 2 parts of catalyzer.
Modified coal slag is made up of the raw material of following weight part: 110 parts of cinders, 3 parts of ptfe micropowders, 2 parts of ammonium sulfate, 1 part of sodium lignosulfonate, 4 parts of epoxy resin, 1.5 parts of diatomite, 1 part of trisodium phosphate, 2 parts of Xylo-Mucines.
Modified coal slag preparation method is: cinder is sintered 4 hours again at 1200 DEG C, is then ground into powder, adds surplus stock and stir, dry, and grinding is in Powdered.
Fortifying fibre comprises the component of following weight part: 60 parts of polycrystalline mullite fibres, 15 parts of mineral wool fibres, 11 parts of aluminum silicate fibers, 18 parts of boron nitride fibres, 24 parts of silicon carbide fibers, 7 parts of zirconium fibers.
A preparation method for the resistance to compression lagging material that cryogenic piping uses, is characterized in that comprising the following steps: each raw material to be fully uniformly mixed, is then poured into free foaming in mould, obtains mould base; Then, together with mould, mould base is sent in tunnel type baking oven, at temperature-gradient method: 40-45 DEG C, reaction 15-25 minute; Again at 55-65 DEG C, reaction 10-15 minute; Again at 75-85 DEG C, reaction 5-10 minute; Finally slaking 5-7 hour at 90-100 DEG C.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a resistance to compression lagging material for cryogenic piping use, is characterized in that being made up of the raw material of following weight part: 80-90 part rigid-foam polyether polyol, 40-50 part polymeric MDI, 10-15 part modified coal slag, 20-30 part fortifying fibre, 0.5-1 part barium sulfate, 1-2 part fire retardant, 0.1-0.8 part water-resisting agent, 5-8 part resol, 2-3 part polyisobutene, 2-4 part whipping agent, 1-2 part catalyzer.
2. the resistance to compression lagging material that a kind of cryogenic piping according to right 1 uses, is characterized in that described modified coal slag is made up of the raw material of following weight part: 100-110 part cinder, 2-3 part ptfe micropowder, 1-2 part ammonium sulfate, 0.5-1 part sodium lignosulfonate, 3-4 part epoxy resin, 1-1.5 part diatomite, 0.5-1 part trisodium phosphate, 1-2 part Xylo-Mucine.
3. the resistance to compression lagging material that a kind of cryogenic piping according to right 2 uses, it is characterized in that described modified coal slag preparation method is: cinder is sintered 3-4 hour again at 1000-1200 DEG C, then be ground into powder, add surplus stock and stir, dry, grinding is in Powdered.
4. the resistance to compression lagging material that a kind of cryogenic piping according to right 1 uses, is characterized in that described fortifying fibre comprises the component of following weight part: 50-60 part polycrystalline mullite fibre, 10-15 part mineral wool fibre, 6-11 part aluminum silicate fiber, 12-18 part boron nitride fibre, 15-24 part silicon carbide fiber, 3-7 part zirconium fiber.
5. a preparation method for the resistance to compression lagging material of cryogenic piping use, is characterized in that comprising the following steps: each raw material to be fully uniformly mixed, is then poured into free foaming in mould, obtains mould base; Then, together with mould, mould base is sent in tunnel type baking oven, at temperature-gradient method: 40-45 DEG C, reaction 15-25 minute; Again at 55-65 DEG C, reaction 10-15 minute; Again at 75-85 DEG C, reaction 5-10 minute; Finally slaking 5-7 hour at 90-100 DEG C.
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| CN201510652330.3A CN105199373A (en) | 2015-10-09 | 2015-10-09 | Compression-resistant thermal-insulation material for low-temperature pipelines and preparation method thereof |
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| CN201510652330.3A CN105199373A (en) | 2015-10-09 | 2015-10-09 | Compression-resistant thermal-insulation material for low-temperature pipelines and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106700427A (en) * | 2016-12-30 | 2017-05-24 | 深圳先进技术研究院 | Boron nitride/epoxy resin composite material and preparation method thereof |
| CN107964236A (en) * | 2017-12-20 | 2018-04-27 | 安徽力峰建材科技有限公司 | A kind of preparation method of high-strength insulation composite material |
| CN114876106A (en) * | 2022-05-05 | 2022-08-09 | 广东五恒新材料有限公司 | Polyurethane material for curtain wall, building curtain wall profile and preparation method thereof |
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| CN106700427A (en) * | 2016-12-30 | 2017-05-24 | 深圳先进技术研究院 | Boron nitride/epoxy resin composite material and preparation method thereof |
| CN107964236A (en) * | 2017-12-20 | 2018-04-27 | 安徽力峰建材科技有限公司 | A kind of preparation method of high-strength insulation composite material |
| CN114876106A (en) * | 2022-05-05 | 2022-08-09 | 广东五恒新材料有限公司 | Polyurethane material for curtain wall, building curtain wall profile and preparation method thereof |
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Application publication date: 20151230 |