CN101634170B - Outer heat-insulation system of outer wall - Google Patents
Outer heat-insulation system of outer wall Download PDFInfo
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- CN101634170B CN101634170B CN2009100912923A CN200910091292A CN101634170B CN 101634170 B CN101634170 B CN 101634170B CN 2009100912923 A CN2009100912923 A CN 2009100912923A CN 200910091292 A CN200910091292 A CN 200910091292A CN 101634170 B CN101634170 B CN 101634170B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
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Abstract
The invention relates to an outer heat-insulation system of an outer wall. The outer surface of a basal layer wall body (1) is sequentially provided with an interfacial agent processing layer (2-1), a bonding mortar layer (3), a polyphenyl plate heat-insulation layer (4), a interfacial agent bonding layer (2-2), a first flexible heat- insulation putty layer (6-1), a second flexible heat- insulation putty layer (6-2), a closed base paint layer (7), an elastic heat- insulation coating layer (8) and a mat coat varnish layer (9) from inside to outside, wherein the first flexible heat- insulation putty layer (6-1) is internally provided with glass fibre gridding cloth (5); and all the layers are combined with the basal layer wall body (1) into a whole after being dried and solidified; flexible heat-preserving putty of the two flexible heat-preserving putty layers, which contains 20-40 percent of heat-preserving materials, is formed, and elastic heat-preserving coating of the elastic heat-preserving coating layer (8), which contains 5-15 percent of heat-preserving materials, is formed. The outer heat-preserving system can prevent the polyphenyl plate heat- insulation layer (4) from cracking and desquamating caused by external temperature difference because of the heat preservation and isolation of the flexible heat- insulation putty layers and the elastic heat-preserving coating layer (8), thereby prolonging the service life of the heat-preserving system and enhancing the energy-saving effect of buildings.
Description
Technical field
The present invention relates to a kind of external thermal insulation system.
Background technology
Specifically being configured to of traditional exterior insulation system for polyphenyl plate thin plastering exterior wall: basic unit's body of wall+adhesive mortar layer+polyphenyl plate heat preserving layer+plastering mortar layer (liner glass fiber reticular cloth)+putty layer+veneer coating layer.In such external thermal insulation system, its veneer coating layer only has to be decorated and general water-proof function, does not have incubation and thermal insulation function, and this protection for whole system has certain limitation.As everyone knows, when external thermal insulation system is subjected to sun direct projection, because the polyphenyl plate thermal resistance is very big, the heat in plastering mortar layer and the veneer coating layer is difficult to by the conduction of heat diffusion, its surface temperature can reach 60～80 ℃ in summer.As suddenly rain cats and dogs; temperature sharply descends; variations in temperature can reach more than 30～50 ℃; the stress that is produced by this temperature difference causes that very easily plastering mortar layer and veneer coating layer produce the crack; and plastering mortar layer and veneer coating layer temperature are too high; can make polyphenyl plate produce irreversible thermal contraction distortion, also can cause the serious cracking of plastering mortar layer and veneer coating layer, lose the effect of decorating and protecting.Especially serious is, in case the crack of surface layer of external thermal insulation system, rainwater or steam will enter polyphenyl plate heat preserving layer and adhesive mortar layer along the crack, the polyphenyl plate adhesion strength is descended, thereby cause outer heat preservation system to come off, and causes potential safety hazard.
Summary of the invention
The objective of the invention is: a kind of polyphenyl plate heat preserving layer cracking that can prevent outer heat preservation system is provided, comes off, improve the whole outer heat preservation system external thermal insulation system in application life.
The technical scheme that realizes the object of the invention is: a kind of external thermal insulation system, its characteristics: at basic unit's exterior surface of wall, set gradually from inside to outside interfacial agents processing layer, bonding mortar layer, polyphenyl plate heat preserving layer, interfacial agents adhesive linkage, in the first road flexible heat-insulating putty layer, the second road flexible heat-insulating putty, seal coat layer, elastic heat preserving dope layer and the finishing varnish layer of fiberglass gridding cloth are arranged, be combined as a whole with the basic unit body of wall behind each layer dry solidification;
It is 20%～40% heat insulating material that the flexible heat-insulating putty that forms the described first road flexible heat-insulating putty layer and the second road flexible heat-insulating putty layer contains elastomeric propylene yogurt liquid and percentage by weight;
It is 5%～15% heat insulating material that the elastic heat preserving coating that forms the elastic heat preserving dope layer contains flexible silicon acrylic emulsion and percentage by weight.
In the above-mentioned external thermal insulation system, the heat insulating material that contains in the described flexible heat-insulating putty is hollow glass microbead, float in pearl, kieselguhr, sepiolite, expanded perlite, the expanded vermiculite one or more; The heat insulating material that contains in the described elastic heat preserving coating is sepiolite, kieselguhr, hollow glass microbead, hollow ceramic microballon, float in the pearl one or more.
In the above-mentioned external thermal insulation system, the thickness of the described first road flexible heat-insulating putty layer is 3～10mm, and the thickness of the second road flexible heat-insulating putty layer is 3～10mm.
In the above-mentioned external thermal insulation system, the thickness of described elastic heat preserving dope layer is 0.3～1.0mm.
In the above-mentioned external thermal insulation system, described polyphenyl plate is EPS plate or XPS plate, and thickness is 30～100mm, and density is 15～30kg/m
3
In the above-mentioned external thermal insulation system, the composition of described flexible heat-insulating putty, be by weight percentage: heat insulating material 20%～40%, polypropylene fibre 0.3%～2%, elastomeric propylene yogurt liquid 10%～20%, cellulose 0.3%～2%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water.
In the above-mentioned external thermal insulation system, the performance of described flexible heat-insulating putty: flexible (50mm) passes through adhesion strength 0.2～1.0Mpa under the standard state, coefficient of thermal conductivity 0.04～0.1w/ (mK).
In the above-mentioned external thermal insulation system, the composition of described elastic heat preserving coating, be by weight percentage: heat insulating material 5%～15%, flexible silicon acrylic emulsion 40%～70%, titanium dioxide 10%～30%, ammonium polyacrylate dipersant 0.3%～1.5%, alkali swelling thickener and polyurethane thickener 0.1～1%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, propane diols 0.5%～3%, all the other are water.
In the above-mentioned external thermal insulation system, the performance of described elastic heat preserving coating: the hot strength 0.6～1.2MPa under the elongation at break 100～300%, standard state, coefficient of thermal conductivity 0.06～0.15w/ (mK), solar heat reflection rate 0.8～0.9.
Technique effect of the present invention is: the present invention is basic unit's exterior surface of wall of wall outside the building, and the outer heat preservation system of She Zhiing from inside to outside, each layer have unique effect:
1. the interfacial agents processing layer and the adhesive mortar layer that are provided with of basic unit's exterior surface of wall guaranteed the adhesion strength of polyphenyl plate heat preserving layer and basic unit's exterior surface of wall;
2. the interfacial agents adhesive linkage of polyphenyl plate heat preserving laminar surface setting provides good viscosity, thereby has effectively increased the adhesion strength between the first road flexible heat-insulating putty layer and the polyphenyl plate heat preserving layer;
3. the fiberglass gridding cloth that is pressed in the first road flexible heat-insulating putty layer links together the first road flexible heat-insulating putty layer and the second road flexible heat-insulating putty layer integral body, can prevent the generation of local cracking obscission;
4. the seal coat layer that outside the second road flexible heat-insulating putty layer, is provided with, utilize the fine particle in the seal coat to be penetrated in the putty layer, not only improved the intensity of flexible heat-insulating putty layer, and the adhesion of seal coat layer can also increase the adhesion stress of elastic heat preserving dope layer and flexible putty interlayer.
5. the elastic heat preserving dope layer in the outer heat preservation system of the present invention, its coating coefficient of thermal conductivity is low, solar heat reflection rate height, has extremely excellent heat insulation and preservation effect, can effectively prevent the polyphenyl plate heat preserving layer in the heat insulation system, because of the acute variation of the external environment temperature difference produces cracking, obscission, improve the application life of whole heat insulation system greatly, and obviously improved the effect of building energy-saving.
Because the synergy of above-mentioned each layer makes the external thermal insulation system operating period of the present invention increase, integrality improves.
The specific embodiment
Below in conjunction with embodiment the present invention is further described in detail, but is not limited to this.
Used various raw materials are commercially available industrial goods among the embodiment.Implement the used instrument of the present invention and equipment is coating and builing industry is general.
Embodiment carries out external wall outer insulation with external thermal insulation system of the present invention to a building civil building
(1) prepare raw material, below percentage in each raw material consumption, all be weight percentage
1. prepare interfacial agents: press acrylic emulsion 30%, cellulose 0.5%, silicone defoamer 0.05%, heterocyclic anticorrisive agent 0.1%, surplus is a water, takes by weighing raw material and mixes, and is standby;
The acrylic emulsion trade mark wherein is SN-01, and CNOOC Changzhou Paint ﹠ Coatings Industry Research Institute produces, and can buy from market, also can replace with other like products;
2. prepare adhesive mortar: used adhesive mortar powder is that the extensive packing Co., Ltd. of Yixing City produces, and the trade mark is HB-1, and it is made up of redispersibility latex powder, quartz sand, cement, polypropene staple and synthetic cellulose; During use, add 20～30% (weight) water and stir in the adhesive mortar powder, standby, its main performance index is adhesion strength＞0.6MPa under the standard state, dynamically cracking resistance 〉=0.1mm;
3. prepare flexible heat-insulating putty: press heat insulating material 38% (wherein sepiolite 10%, kieselguhr 16%, expanded vermiculite 12%), elastomeric propylene yogurt liquid 14%, cellulose 0.3%, polypropylene fibre 0.5%, heterocyclic anticorrisive agent 0.01%, all the other are water, take by weighing raw material and mix, and are standby; Its main performance index is adhesion strength 0.4MPa～1.0Mpa under the standard state, flexible (50mm): by, coefficient of thermal conductivity: 0.06w/ (mK);
The elastomeric propylene yogurt liquid trade mark wherein is CB 504, and national starch company produces, and can buy from market, also can be with other like products replacements;
4. prepare seal coat: press acrylic emulsion 50%, cellulose 0.5%, heterocyclic anticorrisive agent 0.05%, all the other are water, take by weighing raw material and mix, and are standby;
The acrylic emulsion trade mark wherein is RS-6, and the well-off industry of Shuande Ahmedabad Co., Ltd produces, and can buy from market, also can replace with other like products;
5. prepare elastic heat preserving coating: by flexible silicon acrylic emulsion 55%, titanium dioxide 18%, heat insulating material 12% (wherein sepiolite 2%, hollow glass microbead 6% float pearl 4%), ammonium polyacrylate dipersant 0.5%, alkali swelling thickener and polyurethane thickener 0.5%, silicone defoamer 0.1%, heterocyclic anticorrisive agent 0.05%, propane diols 1%, all the other are water, take by weighing raw material and mix, and are standby;
The flexible silicon acrylic emulsion trade mark wherein is FHS-205, and CNOOC Changzhou Paint ﹠ Coatings Industry Research Institute produces, and can buy from market, also can replace with other like products;
Elastic heat preserving coating main performance index is: the hot strength 1.0～1.2MPa under the standard state, elongation at break 150%～300%, coefficient of thermal conductivity: 0.08w/ (mK), solar heat reflection rate: 0.87;
6. prepare fluorine carbon coating varnish: it is that JF-2X type fluororesin (fluorine element weight content 〉=18%), complete curing agent and the diluent that Jiangsu Changshu Sanaifu Zhonghao New Chemical Materials Co., Ltd produces formed, during use, above-mentioned three components are 9: 1: 5～7 to mix by weight proportion.
7. prepare fiberglass gridding cloth, its main performance index is: mass area ratio is 160 ± 3g/m
2, radial fragmentation brute force 〉=1500N/50mm, broadwise ultimate strength 〉=1700N/50mm, gel content 〉=18%;
8. prepare polyphenyl plate EPS type, 1200 * 600mm * 30mm, its main performance index is: apparent density: 18Kg/m
3, coefficient of thermal conductivity: 0.041w/ (mK).
(2) construction
As shown in Figure 1, external thermal insulation system of the present invention is: at basic unit's body of wall 1 external surface, set gradually from inside to outside interfacial agents processing layer 2-1, bonding mortar layer 3, polyphenyl plate heat preserving layer 4, interfacial agents adhesive linkage 2-2, in the first road flexible heat-insulating putty layer 6-1, the second road flexible heat-insulating putty 6-2, seal coat layer 7, elastic heat preserving dope layer 8 and the finishing varnish layer 9 of fiberglass gridding cloth 5 are arranged, be combined as a whole with basic unit body of wall 1 behind each layer dry solidification.Concrete construction sequence is as follows:
1. after clearing up the dust and other foreign material on basic unit's body of wall 1 surface, the roller coating interfacial agents forms interfacial agents processing layer 2-1;
2. scrape on interfacial agents processing layer 2-1 surface to smear bonding mortar formation bonding mortar layer 3 and paste polyphenyl plate and form polyphenyl plate heat preserving layer 4;
3. levelling is repaired on p-poly-phenyl plate insulation layer 4 surfaces, and roller coating interfacial agents then forms interfacial agents adhesive linkage 2-2;
4. smear flexible heat-insulating putty and be pressed into fiberglass gridding cloth 5 on interfacial agents adhesive linkage 2-2 surface, the first road flexible heat-insulating putty layer 6-1 that fiberglass gridding cloth 5 is arranged in the formation, its thickness is 4mm, continue to smear flexible heat-insulating putty again and form the second road flexible heat-insulating putty layer 6-2, its thickness is 3mm;
5. to the second road flexible heat-insulating putty layer 6-2 repairerment of polishing, lattice, the roller coating seal coat forms seal coat layer 7 then;
6. at seal coat layer 7 surface spraying elastic heat preserving coating, form elastic heat preserving dope layer 8, its thickness is 0.3～1.0mm;
7. after elastic heat preserving dope layer 8 surperficial lattice line drawings were black, the spraying finishing varnish formed finishing varnish layer 9, thereby forms external thermal insulation system of the present invention.
At work progress, can determine (comprising temperature, humidity etc.) the construction blanking time of each layer according to concrete ambient conditions of when construction.
Comparative example carries out external wall outer insulation with traditional exterior insulation system for polyphenyl plate thin plastering exterior wall to a building civil building.
Two building buildings of embodiment and comparative example are adjacent.After 2 years, use the surface of wall coating of external thermal insulation system of the present invention intact.Detect through builing industry specialized agency, energy-saving effect does not have significant change; And cracking appears with the skin face coat of traditional exterior insulation system for polyphenyl plate thin plastering exterior wall, energy-saving effect obviously descends.
Claims (9)
1. external thermal insulation system, it is characterized in that: at basic unit's body of wall (1) external surface, set gradually from inside to outside interfacial agents processing layer (2-1), bonding mortar layer (3), polyphenyl plate heat preserving layer (4), interfacial agents adhesive linkage (2-2), in the first road flexible heat-insulating putty layer (6-1), the second road flexible heat-insulating putty layer (6-2), seal coat layer (7), elastic heat preserving dope layer (8) and the finishing varnish layer (9) of fiberglass gridding cloth (5) are arranged, be combined as a whole with basic unit's body of wall (1) behind each layer dry solidification;
It is 20%～40% heat insulating material that the flexible heat-insulating putty that forms the described first road flexible heat-insulating putty layer (6-1) and the second road flexible heat-insulating putty layer (6-2) contains elastomeric propylene yogurt liquid and percentage by weight;
It is 5%～15% heat insulating material that the elastic heat preserving coating that forms elastic heat preserving dope layer (8) contains flexible silicon acrylic emulsion and percentage by weight.
2. external thermal insulation system according to claim 1 is characterized in that, the heat insulating material that contains in the described flexible heat-insulating putty is hollow glass microbead, float in pearl, kieselguhr, sepiolite, expanded perlite, the expanded vermiculite one or more; The heat insulating material that contains in the described elastic heat preserving coating is sepiolite, kieselguhr, hollow glass microbead, hollow ceramic microballon, float in the pearl one or more.
3. external thermal insulation system according to claim 1 is characterized in that, the thickness of the described first road flexible heat-insulating putty layer (6-1) is 3～10mm, and the thickness of the second road flexible heat-insulating putty layer (6-2) is 3～10mm.
4. external thermal insulation system according to claim 1 is characterized in that, the thickness of described elastic heat preserving dope layer (8) is 0.3～1.0mm.
5. external thermal insulation system according to claim 1 is characterized in that, described polyphenyl plate is EPS plate or XPS plate, and thickness is 30～100mm, and density is 15～30kg/m
3
6. external thermal insulation system according to claim 1, it is characterized in that, the composition of described flexible heat-insulating putty, be by weight percentage: heat insulating material 20%～40%, polypropylene fibre 0.3%～2%, elastomeric propylene yogurt liquid 10%～20%, cellulose 0.3%～2%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water.
7. external thermal insulation system according to claim 6 is characterized in that, the performance of described flexible heat-insulating putty: flexible 50mm passes through, adhesion strength 0.2～1.0Mpa under the standard state, coefficient of thermal conductivity 0.04～0.1w/ (mK).
8. external thermal insulation system according to claim 1, it is characterized in that the composition of described elastic heat preserving coating is by weight percentage: heat insulating material 5%～15%, flexible silicon acrylic emulsion 40%～70%, titanium dioxide 10%～30%, ammonium polyacrylate dipersant 0.3%～1.5%, alkali swelling thickener and polyurethane thickener 0.1～1%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, propane diols 0.5%～3%, all the other are water.
9. external thermal insulation system according to claim 8, it is characterized in that the performance of described elastic heat preserving coating: the hot strength 0.6～1.2MPa under the elongation at break 100～300%, standard state, coefficient of thermal conductivity 0.06～0.15w/ (mK), solar heat reflection rate 0.8～0.9.
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Address after: 100010 Dongcheng District, Chaoyangmen, North Street, No. 4705, No. 25, box office, Beijing Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Patentee after: CNOOC CHANGZHOU PAINT CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Address before: 100010 Dongcheng District, Chaoyangmen, North Street, No. 4705, No. 25, box office, Beijing Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: CNOOC CHANGZHOU PAINT & COATINGS INDUSTRY Research Institute Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. |
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