CN104693780A - Preparation method of polyurethane insulation board - Google Patents
Preparation method of polyurethane insulation board Download PDFInfo
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- CN104693780A CN104693780A CN201510099096.6A CN201510099096A CN104693780A CN 104693780 A CN104693780 A CN 104693780A CN 201510099096 A CN201510099096 A CN 201510099096A CN 104693780 A CN104693780 A CN 104693780A
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- insulation board
- preparation
- styrene
- inorganics
- thermal insulation
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract
The invention discloses a preparation method of a polyurethane insulation board. The preparation method comprises the following steps: (1) blending and mixing inorganic matters, foamed styrene particles and water for 30 minutes, coating the mixture on glass fiber cloth, placing the glass fiber cloth in a constant temperature room at 30-40 DEG C, airing, then cutting to the size of a die for later used so as to obtain an inorganic matter/styrene mixture layer; and (2) putting the cut inorganic matter/styrene mixture layer in a moulding die, spraying fully mixed polyether polyol for hard bubbles and polyisocyanate into the die, maintaining the temperature of the die at 110-150 DEG C and the pressure of 20-30MPa, and curing and cutting to obtain the inorganic matter/styrene blend composite polyurethane insulation board. According to the preparation method disclosed by the invention, high flame retardance of the inorganic insulating board and high heat isolation of the polyurethane insulation board are combined, so that the polyurethane insulation board for insulating an exterior wall with grade A flame retardance without adding a flame retardant is manufactured.
Description
Technical field
The present invention relates to a kind of polyurethane thermal insulation board, belong to lagging material technical field.
Background technology
Existing external-wall heat-insulation material, main point two large class, inorganic heat-insulation board and organic heat-insulating plates.Inorganic heat-insulation board has good flame retardant properties, but thermal conductivity is higher, generally more than 0.2w/ (m.k), organic heat-insulating plate has good heat-proof quality, thermal conductivity is generally lower than 0.05w/ (m.k), but the shortcoming such as have generally inflammable or intensity less than normal.Common inorganic modified polyurethane warming plate, can improve the flame retardant properties of polyurethane thermal insulation board, but obviously can affect the heat-proof quality of polyurethane thermal insulation board.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of polyurethane thermal insulation board is provided.
The present invention is achieved through the following technical solutions:
A preparation method for polyurethane thermal insulation board, comprises following two steps:
(1) by the styrene pellets of inorganics, foaming and water blending and stirring 30 minutes, be coated on glasscloth, place 30 ~ 40 DEG C of thermostatic chambers and dry, flash-off time is 24 ~ 48 hours, be cut to mould size after drying for subsequent use, obtain inorganics/styrene mixture layer;
(2) inorganics/styrene mixture layer after cutting is positioned in forming mould, spurt in mould after polyether polyvalent alcohol and polyisocyanates are fully mixed, keep temperature 110 DEG C ~ 150 DEG C in mould, pressure 20 ~ 30Mpa, namely obtains inorganics/styrene blend composite polyurethane heat-insulating board after slaking cutting.
The preparation method of described a kind of polyurethane thermal insulation board, in step (1), inorganics, the styrene pellets of foaming and the mass ratio of water are 70: 20: 10.
The preparation method of described a kind of polyurethane thermal insulation board, in step (1), coating thickness is 10mm ~ 15mm.According to the polyurethane thermal insulation board that the preparation method of described a kind of polyurethane thermal insulation board obtains.
The beneficial effect that the present invention reaches:
First preparation method of the present invention prepares inorganics/vinylbenzene blended layer, adopt water, inorganics and foamed styrene blended shaping, be positioned over forming mould inner position after cutting, then polyether glycol and polyisocyanates fully mixed in rear injection injection mould, form unified entirety.The high thermal insulation of inorganic heat-insulation board high flame retardant and polyurethane thermal insulation board combines, manufacture a kind of have do not add fire retardant and the polyurethane thermal insulation board for exterior-wall heat insulation with A level flame retardant properties.
Embodiment
Below in conjunction with embodiment, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1
In the present embodiment, a kind of preparation method of polyurethane thermal insulation board, comprises following two steps:
(1) by the styrene pellets of inorganics, foaming and water blending and stirring 30 minutes, the ratio of three is the mass ratio of inorganics, foamed styrene and water is 70: 20: 10, be coated on glasscloth, coating thickness is 10mm, place 40 DEG C of thermostatic chambers to dry, flash-off time is 24 hours, is cut to mould size for subsequent use after drying;
(2) inorganics/styrene mixture layer after cutting is positioned in forming mould, spurt in mould after polyether polyvalent alcohol and polyisocyanates are fully mixed, keep temperature 110 DEG C in mould, pressure 30MPa, namely obtains inorganics/styrene blend composite polyurethane heat-insulating board after slaking cutting.
Embodiment 2
In the present embodiment, a kind of preparation method of polyurethane thermal insulation board, comprises following two steps:
(1) by the styrene pellets of inorganics, foaming and water blending and stirring 30 minutes, the ratio of three is the mass ratio of inorganics, foamed styrene and water is 70: 20: 10, be coated on glasscloth, coating thickness is 15mm, place 30 DEG C of thermostatic chambers to dry, flash-off time is 48 hours, is cut to mould size for subsequent use after drying;
(2) inorganics/styrene mixture layer after cutting is positioned in forming mould, spurt in mould after polyether polyvalent alcohol and polyisocyanates are fully mixed, keep temperature 150 DEG C in mould, pressure 20MPa, namely obtains inorganics/styrene blend composite polyurethane heat-insulating board after slaking cutting.
Embodiment 3
In the present embodiment, a kind of preparation method of polyurethane thermal insulation board, comprises following two steps:
(1) by the styrene pellets of inorganics, foaming and water blending and stirring 30 minutes, the ratio of three is the mass ratio of inorganics, foamed styrene and water is 70: 20: 10, be coated on glasscloth, coating thickness is 12mm, place 40 DEG C of thermostatic chambers to dry, flash-off time is 36 hours, is cut to mould size for subsequent use after drying;
(2) inorganics/styrene mixture layer after cutting is positioned in forming mould, spurt in mould after polyether polyvalent alcohol and polyisocyanates are fully mixed, keep temperature 120 DEG C in mould, pressure 25MPa, namely obtains inorganics/styrene blend composite polyurethane heat-insulating board after slaking cutting.
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 (4)
1. a preparation method for polyurethane thermal insulation board, is characterized in that, comprises following two steps:
(1) by the styrene pellets of inorganics, foaming and water blending and stirring 30 minutes, be coated on glasscloth, place 30 ~ 40 DEG C of thermostatic chambers and dry, flash-off time is 24 ~ 48 hours, be cut to mould size after drying for subsequent use, obtain inorganics/styrene mixture layer;
(2) inorganics/styrene mixture layer after cutting is positioned in forming mould, spurt in mould after polyether polyvalent alcohol and polyisocyanates are fully mixed, keep temperature 110 DEG C ~ 150 DEG C in mould, pressure 20 ~ 30Mpa, namely obtains inorganics/styrene blend composite polyurethane heat-insulating board after slaking cutting.
2. the preparation method of a kind of polyurethane thermal insulation board according to claim 1, is characterized in that, in step (1), inorganics, the styrene pellets of foaming and the mass ratio of water are 70: 20: 10.
3. the preparation method of a kind of polyurethane thermal insulation board according to claim 1, is characterized in that, in step (1), coating thickness is 10mm ~ 15mm.
4. the polyurethane thermal insulation board that the preparation method of a kind of polyurethane thermal insulation board according to above arbitrary claim obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099096.6A CN104693780A (en) | 2015-03-04 | 2015-03-04 | Preparation method of polyurethane insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099096.6A CN104693780A (en) | 2015-03-04 | 2015-03-04 | Preparation method of polyurethane insulation board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104693780A true CN104693780A (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510099096.6A Pending CN104693780A (en) | 2015-03-04 | 2015-03-04 | Preparation method of polyurethane insulation board |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275594A (en) * | 1999-05-26 | 2000-12-06 | 武建民 | Polyurethane, polystyrene foam composite material |
| CN1971120A (en) * | 2005-11-23 | 2007-05-30 | 吉林石油集团有限责任公司 | Hard polyurethane polystyrene foam plastic composite thermal-insulating pipe case |
| CN102794817A (en) * | 2011-07-30 | 2012-11-28 | 刘海锋 | Method for preparing inorganic foaming heat preservation material with low thermal conductivity |
| CN103172940A (en) * | 2013-04-15 | 2013-06-26 | 山东圣泉化工股份有限公司 | Modified polystyrene heat insulation material and preparation method thereof |
| CN103450579A (en) * | 2013-09-16 | 2013-12-18 | 内蒙古大学 | Method for preparing board from waste polyurethane foam, kaolin and waste polystyrene foam |
-
2015
- 2015-03-04 CN CN201510099096.6A patent/CN104693780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275594A (en) * | 1999-05-26 | 2000-12-06 | 武建民 | Polyurethane, polystyrene foam composite material |
| CN1971120A (en) * | 2005-11-23 | 2007-05-30 | 吉林石油集团有限责任公司 | Hard polyurethane polystyrene foam plastic composite thermal-insulating pipe case |
| CN102794817A (en) * | 2011-07-30 | 2012-11-28 | 刘海锋 | Method for preparing inorganic foaming heat preservation material with low thermal conductivity |
| CN103172940A (en) * | 2013-04-15 | 2013-06-26 | 山东圣泉化工股份有限公司 | Modified polystyrene heat insulation material and preparation method thereof |
| CN103450579A (en) * | 2013-09-16 | 2013-12-18 | 内蒙古大学 | Method for preparing board from waste polyurethane foam, kaolin and waste polystyrene foam |
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Application publication date: 20150610 |
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| RJ01 | Rejection of invention patent application after publication |