CN102817474A - Polyurethane rigid foam used for thermal insulation technique of wall - Google Patents
Polyurethane rigid foam used for thermal insulation technique of wall Download PDFInfo
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- CN102817474A CN102817474A CN2011101561387A CN201110156138A CN102817474A CN 102817474 A CN102817474 A CN 102817474A CN 2011101561387 A CN2011101561387 A CN 2011101561387A CN 201110156138 A CN201110156138 A CN 201110156138A CN 102817474 A CN102817474 A CN 102817474A
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Abstract
The invention relates to a polyurethane rigid foam used for a thermal insulation process of a wall, wherein the process flow comprises cleaning a foundation wall, coating an anti-mist polyurethane primer, spraying the thermal insulation polyurethane rigid foam, coating interface treating agent, plastering anti-crack mortar, laying fiberglass mesh, plastering the anti-crack mortar for the second time, pressing the second fiberglass mesh and conducting exterior decoration. Compared with prior art, the polyurethane rigid foam adopted in the invention has a stronger adhesion force. As the overall construction is conducted, there is no assemble joint or construction joint in a thermal insulation layer; the phenomenon of 'hot-cold bridge' is avoided; the service life of the thermal insulation layer of the wall is prolonged; and in addition, as the adopted polyurethane rigid foam is low in heat conductivity factor, the thermal insulation performance of the wall adopting the process is better.
Description
Technical field
The present invention relates to wall thermal insulation technology, relate in particular to the hard polyurethane foam body and be used for wall thermal insulating technology.
Background technology
In China, 40% energy is heating (heating) and the hot water that is used for floor space in the building energy consumption, so the heating of the space in house has maximum and the most lasting energy-saving potential.In general building; With the dwelling house is example: the heat output through space enclosing structure is about 72% of building use energy consumption; The air leakage amount is about building and uses 28% of energy consumption, and the heat output of exterior wall is 24% in the heat transfer across wall amount, roof and ground generally are about 10%, the staircase wall is about 10%, the heat output of window is 22%.According to China's heating residential building second stage energy conservation standard, the Beijing area heat transfer coefficient of outer wall is 1.16W/ (m
2K) and 0.82W/ (m
2K), the heat transfer coefficient of outer wall in severe cold area Hailaer, area, Manzhouli is 0.52W/ (m
2K) and 0.40W/ (m
2K).Therefore must increase substantially the thermal property of space enclosing structure material, use energy consumption to have a very important role for reducing whole building.
The wall insulated board that has occurred various unlike materials in the market; An important indicator weighing wall insulated board is: " coefficient of thermal conductivity "; Coefficient of thermal conductivity is low more; Heat-insulating property is good more, and applied thickness and unit weight also can correspondingly reduce the load-carry duty that helps saving building area He alleviate building.The better wall insulated board of domestic coefficient of thermal conductivity is polyphenyl foam warming plate and extruded polystyrene foam heat-insulating board, and what these two kinds of plates adopted all is polystyrene material, and the problem that they exist is: poor fire; Poor heat resistance: fusing point is low, and safety is not high; Poor heat stability: run into naked light, as common plastics, the demand of structural fire protection safety can not be well satisfied in material deliquescing and shrinking.In addition, because not good enough with the adhesion stress of body of wall, assembly unit or constuction joint can appear in insulation layer in the work progress, occur " hot cold bridge " phenomenon easily, and security-hidden trouble such as have cracking, infiltration freeze thawing, come off shortens service life of wall insulating layer greatly.
Summary of the invention
The object of the invention is exactly that assembly unit or constuction joint can appear in insulation layer in the existing polyphenyl material wall thermal insulating technology in order to overcome, and occurs " hot cold bridge " phenomenon easily, the defective of security-hidden trouble such as have cracking, infiltration freeze thawing, come off and provide a kind of; Strong with the adhesion stress of body of wall; Carried out integral construction, insulation layer has no assembly unit or constuction joint, " hot cold bridge " phenomenon can not occur; Coefficient of thermal conductivity is low simultaneously, and the better hard polyurethane foam body of heat-insulating property is used for wall thermal insulating technology.
The object of the invention can be realized through following technical scheme: the hard polyurethane foam body is used for wall thermal insulating technology, and its processing step is basic unit's body of wall cleaning; The moistureproof priming paint of brushing polyurethane; Spray coating polyurethane rigid foam body heat insulating material is coated with boundary mortar, smears anticracking grout, shop pressure grid cloth; Smearing second time anticracking grout, be pressed into second layer glass fiber reticular cloth, is outer decoration construction at last.
It is preferably, said that what smear that anticracking grout, shop press that grid cloth step middle berth presses is alkaline-resisting grid cloth.
Preferably, added flexibilizer in the said rigid polyurethane foam.
Preferably, said flexibilizer is glass fiber.
Preferably, said flexibilizer is polyster fibre.
What preferably, said spray coating polyurethane rigid foam body heat insulating material step adopted is airless spraying.
Compared with prior art, beneficial effect of the present invention is following:
The coefficient of thermal conductivity of the rigid polyurethane foam that 1, adopts has only 0.018～0.027W/mK, is the half the of extruded polystyrene board coefficient of thermal conductivity; It is 1/3rd of polystyrene granule insulating mortar coefficient of thermal conductivity.Its coefficient of thermal conductivity is low, and good heat insulating adopts the thick external wall external thermal insulation of hard polyurethane foam of 40mm of this technology, is equivalent to build loam brick 240mm thick wall body heat insulation effect.
2, the rigid polyurethane foam that adopts is the foam of complete closed pore, has insulation, waterproof, the cold multi-functional of resistance, and strong with the adhesion stress of body of wall, can in the building of different shape and structure, use; Owing to carried out integral construction, insulation layer has no assembly unit or constuction joint, " hot cold bridge " phenomenon can not occur, the occurrence probability of security-hidden trouble such as also reduced cracking, infiltration freeze thawing simultaneously, come off, the service life of having improved wall insulating layer.
3, polyster fibre or glass fiber have been added in the rigid polyurethane foam raw material as flexibilizer; Single micropore is cross-linked with each other together; Form net structure, solved the intensity and the toughness that have further strengthened material when polyurethane material is prone to the dry linting problem.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment:
The hard polyurethane foam body is used for the wall thermal insulating technological process: basic unit's body of wall cleaning; The moistureproof priming paint of brushing polyurethane; Spray coating polyurethane rigid foam body heat insulating material is coated with boundary mortar, smears anticracking grout, shop pressure grid cloth; Smearing second time anticracking grout, be pressed into second layer glass fiber reticular cloth, is outer decoration construction at last.
It is in the present embodiment, said that what smear that anticracking grout, shop press that grid cloth step middle berth presses is alkaline-resisting grid cloth.
In the present embodiment, added glass fiber as flexibilizer in the said rigid polyurethane foam.Also can add polyster fibre as flexibilizer.After adding flexibilizer, can make single micropore be cross-linked with each other together, form net structure, when having solved material dry linting problem, further strengthen the intensity and the toughness of material.
What in the present embodiment, said spray coating polyurethane rigid foam body heat insulating material step adopted is airless spraying.This spraying method makes that the bonding of material and body of wall is more tight, the air gap can not occur.
The key technical indexes of the wall heat insulation material of the foregoing description is as shown in the table:
Can know that by last table each item performance that this hard polyurethane foam body is used for wall thermal insulating technology is very superior, can well meet China's building energy conservation and reach 65% standard.Wherein outstanding with heat-insulating property, the coefficient of thermal conductivity of this rigid polyurethane foam has only 0.018～0.027W/mK in the last table, is the half the of extruded polystyrene board coefficient of thermal conductivity; It is 1/3rd of polystyrene granule insulating mortar coefficient of thermal conductivity.Through calculating, adopt the thick external wall external thermal insulation of hard polyurethane foam of 40mm of this technology, be equivalent to build loam brick 240mm thick wall body heat insulation effect, be a kind of high-efficiency wall heat preservation technology of lightweight.Simultaneously, because this technology is carried out integral construction, insulation layer has no assembly unit or constuction joint, " hot cold bridge " phenomenon can not occur, the service life of also further having improved wall insulating layer.
Claims (6)
1. the hard polyurethane foam body is used for wall thermal insulating technology, it is characterized in that: the processing step that said hard polyurethane foam body is used for wall thermal insulating technology is basic unit's body of wall cleaning; The moistureproof priming paint of brushing polyurethane; Spray coating polyurethane rigid foam body heat insulating material is coated with boundary mortar, smears anticracking grout, shop pressure grid cloth; Smearing second time anticracking grout, be pressed into second layer glass fiber reticular cloth, is outer decoration construction at last.
2. hard polyurethane foam body as claimed in claim 1 is used for wall thermal insulating technology, it is characterized in that: said what smear that anticracking grout, shop press that grid cloth step middle berth presses is alkaline-resisting grid cloth.
3. hard polyurethane foam body as claimed in claim 1 is used for wall thermal insulating technology, it is characterized in that: added flexibilizer in the said rigid polyurethane foam.
4. hard polyurethane foam body as claimed in claim 3 is used for wall thermal insulating technology, it is characterized in that: said flexibilizer is glass fiber.
5. hard polyurethane foam body as claimed in claim 3 is used for wall thermal insulating technology, it is characterized in that: said flexibilizer is polyster fibre.
6. be used for wall thermal insulating technology like each described hard polyurethane foam body in the claim 1 to 5, it is characterized in that: what said spray coating polyurethane rigid foam body heat insulating material step adopted is airless spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101561387A CN102817474A (en) | 2011-06-10 | 2011-06-10 | Polyurethane rigid foam used for thermal insulation technique of wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101561387A CN102817474A (en) | 2011-06-10 | 2011-06-10 | Polyurethane rigid foam used for thermal insulation technique of wall |
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| Publication Number | Publication Date |
|---|---|
| CN102817474A true CN102817474A (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101561387A Pending CN102817474A (en) | 2011-06-10 | 2011-06-10 | Polyurethane rigid foam used for thermal insulation technique of wall |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213649A (en) * | 2014-08-22 | 2014-12-17 | 安徽中瑞节能装饰材料集团有限公司 | Polyurethane composite insulation board and manufacturing method thereof |
| CN104963420A (en) * | 2015-06-19 | 2015-10-07 | 三门峡职业技术学院 | Construction method for building outer wall insulating layer |
| CN109826094A (en) * | 2018-12-29 | 2019-05-31 | 中国铁道科学研究院集团有限公司金属及化学研究所 | A kind of complex waterproof layer and its construction method of Ballast track concrete bridge deck |
| CN111305510A (en) * | 2020-04-02 | 2020-06-19 | 杭州麟奇金属材料有限公司 | Anti-cracking construction process for building ground |
| CN111578569A (en) * | 2020-05-12 | 2020-08-25 | 北京晟翼佳工程技术有限公司 | Waterproof heat-insulation construction process for ice storage tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417437A (en) * | 2002-11-29 | 2003-05-14 | 北京振利高新技术公司 | Heat insulating polyurethane wall and its construction process |
| CN201106233Y (en) * | 2007-07-20 | 2008-08-27 | 赤峰全合建材厂 | Double leaf exterior wall of polyphenyl composite thermal insulation wallboard |
| JP2010229804A (en) * | 2008-09-30 | 2010-10-14 | Mitsubishi Plastics Inc | In-place foaming method for rigid cellular polyurethane insulating layer, and fire preventive coating agent |
-
2011
- 2011-06-10 CN CN2011101561387A patent/CN102817474A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417437A (en) * | 2002-11-29 | 2003-05-14 | 北京振利高新技术公司 | Heat insulating polyurethane wall and its construction process |
| CN201106233Y (en) * | 2007-07-20 | 2008-08-27 | 赤峰全合建材厂 | Double leaf exterior wall of polyphenyl composite thermal insulation wallboard |
| JP2010229804A (en) * | 2008-09-30 | 2010-10-14 | Mitsubishi Plastics Inc | In-place foaming method for rigid cellular polyurethane insulating layer, and fire preventive coating agent |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213649A (en) * | 2014-08-22 | 2014-12-17 | 安徽中瑞节能装饰材料集团有限公司 | Polyurethane composite insulation board and manufacturing method thereof |
| CN104963420A (en) * | 2015-06-19 | 2015-10-07 | 三门峡职业技术学院 | Construction method for building outer wall insulating layer |
| CN104963420B (en) * | 2015-06-19 | 2017-08-29 | 三门峡职业技术学院 | A kind of construction method of insulating layer of external wall of building |
| CN109826094A (en) * | 2018-12-29 | 2019-05-31 | 中国铁道科学研究院集团有限公司金属及化学研究所 | A kind of complex waterproof layer and its construction method of Ballast track concrete bridge deck |
| CN109826094B (en) * | 2018-12-29 | 2021-07-20 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Composite waterproof layer of concrete bridge floor of ballast track and construction method thereof |
| CN111305510A (en) * | 2020-04-02 | 2020-06-19 | 杭州麟奇金属材料有限公司 | Anti-cracking construction process for building ground |
| CN111578569A (en) * | 2020-05-12 | 2020-08-25 | 北京晟翼佳工程技术有限公司 | Waterproof heat-insulation construction process for ice storage tank |
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Application publication date: 20121212 |