CN102797301B - Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof - Google Patents
Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof Download PDFInfo
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- CN102797301B CN102797301B CN201210295689.6A CN201210295689A CN102797301B CN 102797301 B CN102797301 B CN 102797301B CN 201210295689 A CN201210295689 A CN 201210295689A CN 102797301 B CN102797301 B CN 102797301B
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- steel wire
- wire net
- foam glass
- net rack
- temperature foam
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Abstract
The invention relates to a low-temperature foam glass/steel wire net frame composite heat insulating plate and a preparation method of the low-temperature foam glass/steel wire net frame composite heat insulating plate. The low-temperature foam glass/steel wire net frame composite heat insulating plate comprises a low-temperature foam glass heat insulating layer, a steel wire net frame surface layer and web wires, wherein the steel wire net frame is infiltrated into the surface of the low-temperature foam glass and clung to the surface of the low-temperature foam glass; and the web wires for fixing and supporting the steel wire net frame and the low-temperature foam glass are inserted in the steel wire net frame. The preparation method comprises the steps as follows: (1) preparing a sol; (2) carrying out an oil stain treatment to the steel wire net frame with the web wire, and dipping into the sol; (3) drying the sol to obtain an intermediate material, and crushing the intermediate material, and drying the dipped steel wire net frame with the web wire in the same way; and (4) heating the dried steel wire net frame with the web wire and the crushed intermediate material, so as to obtain the product. The composite heat insulating plate provided by the invention has a simple structure, high resistance to surface cracking, high tensile, high breaking strength, high fatigue resistance and high stability; and the preparation method provided by the invention is simple in technology, and has low cost.
Description
Technical field
The invention belongs to composite insulation boards and preparation field thereof, particularly a kind of low temperature foam glass/steel wire net rack composite insulation boards and preparation method thereof.
Background technology
In recent years, in Nanjing, encircle International Square, Harbin longitude and latitude 360 degree Gemini mansions, the Olympic Sports Center, Jinan, attached cultural center, Beijing CCTV new address, teacher apartment, Jiangzhou, Shanghai, feudal dynasty Wan Xin mansion, Shenyang etc. architectural exterior insulation material fire occurs in succession, cause serious casualties and property loss, building inflammable flammable heat insulating material for external has become the disaster hidden-trouble that a class is new, and the fire causing has thus been the multiple impetus.The Ministry of Public Security, house and town and country construction portion have issued < < civilian construction outer heat preservation system and decoration of exterior wall fire prevention temporary provisions > > with logical [2009] No. 46 literary compositions of word of public affairs, and wherein second regulation civilian construction heat insulating material for external employing combustibility is the material of A level.On this basis, The Ministry of Public Security of the People's Republic of China, MOPS further disappears and has issued the notice of < < about further clear and definite civilian construction heat insulating material for external fire supervision management relevant requirements > > for [2011] No. 65 with public affairs.Inorganic heat insulation material is rare in the market, and the inorganic heat insulation material that cost performance is high is rare especially.When market share amount reaches 90% organic insulation material in stagnate and look around, as the external wall outer insulation inorganic material that reaches fire-protection rating A level---foam glass and rock wool have but welcome unprecedented market good opportunity.From the beginning of this year, rock wool price is soared to more than 200 yuan/square metre by 42 yuan of/square metre of left and right.Nonetheless, still supply falls short of demand for the market demand.Also in its extensive use, there is bottleneck problem in insulating foam glass.At organic insulation material, in stagnate and to look around, low temperature foam glass thermal insulation material also arises at the historic moment.
Low temperature foam glass thermal insulation material is that aqueous silicate solution, boracic or aluminum-containing raw material are obtained to high viscosity colloidal sol by colloid chemistry technique, then the colloidal sol obtaining is carried out to low temperature drying and foaming heat and processes a kind of new amorphous state, the porous hydrated glass material obtaining.This low temperature foam glass and foam glass have many something in common: the spilehole that inside is full of countless openings or remains silent, and the area of pore accounts for 80% ~ 90% of cumulative volume, and pore size is 0.5 ~ 2mm, and what also have is little of several microns; The adiabatic heat-insulation of superior performance, fireproof light building material and an ornament materials, A level is not fired and the same life-span of building.
For the low temperature foam glass thermal insulation material of architectural exterior insulation, can reach the effect of insulated fire.But because low temperature foam glass thermal insulation material fragility is large, its application scenario has certain restricted, as the exterior insulation work of additional decorative layer.In order to improve the pliability of material, common way is that gauze wire cloth and fragile material are carried out compound.Traditional composite heat insulation plate structure comprises the composite heat-insulating layer of insulation layer, adhesive layer, enhancement layer, or insulation layer insulation layer and enhancement layer being combined with holdfast.The complex method heat insulation layer structure of this " take and glue as main, take anchor as auxiliary, sticky anchor combination " all exists different shortcomings, and some construction complexity are of low quality, and some lamination layer structures are not firm.And low temperature foam glass and gauze wire cloth be the material of two kinds of complete unlike materials, the interface that wants to solve well is between the two also large technological difficulties in conjunction with problem.Therefore, seeking a kind of new complex method is to widen the problem of standing in the breach and will solve in the extensive use of low temperature foam glass thermal insulation material.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of low temperature foam glass/steel wire net rack composite insulation boards and preparation method thereof, this composite heat insulation plate structure is simple, surface cracking resistance is good, tensile strength and rupture strength are large, fatigue resistance and having good stability, weight capacity is large, and anti-seismic performance is also very good, the method is simple to operate, and cost is low.
A kind of low temperature foam glass/steel wire net rack composite insulation boards of the present invention, comprise: insulation layer, surface course and abdomen silk, described insulation layer is low temperature foam glass, surface course is steel wire net rack, described steel wire net rack infilters the surface of low temperature foam glass and fits, and be interspersed with on steel wire net rack with it steel wire net rack and low temperature foam glass are played to abdomen silk fixing, supporting role.
The interspersed mode of described abdomen silk is oblique cutting.
Described abdomen silk adopts the steel wire identical with surface course to make.
The preparation method of a kind of low temperature foam glass/steel wire net rack composite insulation boards of the present invention, comprising:
(1) by colloid chemistry technique, under the prerequisite of gel not, obtain high viscosity colloidal sol;
(2) steel wire net rack with abdomen silk is carried out to degreasing processing, be then placed in above-mentioned high viscosity colloidal sol and soak, the band abdomen silk steel wire net rack after being soaked after taking-up;
(3) material carried out cracked processing in the middle of colloidal sol step (1) being obtained is dried and obtains, after cracked in the middle of material grain diameter scope be 0.3～1.6mm; After the immersion simultaneously step (2) being obtained, with abdomen silk steel wire net rack, carry out identical dry processing;
(4) the band abdomen silk steel wire net rack after dry processing step (3) being obtained is put in mould, the cracked rear middle material subsequently step (3) being obtained is put in mould equably, finally sealed mould is also heat-treated, and obtains low temperature foam glass/steel wire net rack composite insulation boards.
The concrete operations of the colloid chemistry technique described in step (1) are: one or more in boracic raw material, aluminum-containing raw material, alkali ROH under agitation mix with aqueous silicate solution, when wherein the addition of boracic raw material and aluminum-containing raw material is different, be zero, R is one or more in the alkali metals such as Li, Na, K.
Described boracic raw material is boric acid, borax, containing one or more in boron mineral.
Described aluminum-containing raw material is one or more in aluminium dihydrogen phosphate, aluminum phosphate, aluminium hydroxide, aluminum-containing mineral.
In the middle of described in step (3), the moisture content of material is 25～50%.
Heat treated concrete operations described in step (4) are: first with 10～40 ℃/min of speed, be warming up to 250～500 ℃ and insulation, temperature retention time is no less than 0.5h, then is down to room temperature with 1～30 ℃/min of rate of temperature fall.
The special feature of low temperature foam glass/steel wire net rack composite insulation boards of the present invention is without any need for additional adhesive, to link together firmly between described insulation layer, surface course and bearing stratum.
The described steel wire net rack with abdomen silk needs first to carry out degreasing processing before being placed into mould, then places it in high viscosity colloidal sol and soaks, and finally with high viscosity colloidal sol, does same dry processing; This is the key of technique.This be because: on the one hand, the band abdomen silk steel wire net rack of processing through degreasing can adsorb colloidal sol while soaking in high viscosity colloidal sol well; On the other hand, through doing after same dry processing with high viscosity colloidal sol with abdomen silk steel wire net rack of soaking, identical with middle material moisture content with foamable colloidal sol on band abdomen silk steel wire net rack, thereby be combined as a whole equably in foaming process with centre material, obvious stratification can not occur.So, between the insulation layer of low temperature foam glass/steel wire net rack composite insulation boards, surface course and abdomen silk, without any need for additional adhesive, link together firmly.
New type low temperature foam glass/steel wire net rack composite insulation boards of the present invention, two surface courses up and down of steel wire frame structure have improved the cracking resistance of warming plate widely, and middle abdomen silk has strengthened tensile strength and the rupture strength of warming plate.Adopt new type low temperature foam glass/steel wire net rack composite heat insulation plate structure of this structure simple and direct, surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good.Low temperature foam glass composite insulation boards technique is simple, and cost is low, is highly suitable for the exterior insulation work of additional decorative layer.
Beneficial effect:
(1) composite heat insulation plate structure is simple, and surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good, is applicable to the exterior insulation work of additional decorative layer;
(2) preparation method of the present invention is simple to operate, and cost is low.
Accompanying drawing explanation
Fig. 1 is the surface course steel wire frame structure schematic diagram of low temperature foam glass/steel wire net rack composite insulation boards of the present invention;
Fig. 2 is the cross-sectional structure schematic diagram of low temperature foam glass/steel wire net rack composite insulation boards of the present invention;
Fig. 3 is the photo of low temperature foam glass/steel wire net rack composite insulation boards laboratory sample of the present invention;
Fig. 4 is the unprocessed laboratory sample photo obtaining of steel wire net rack;
Wherein 1-surface course, 2-abdomen silk, 3-insulation layer.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Take the Liquid Sodium water glass that modulus M=3.3, solid content be 35%, boric acid and KOH are that raw material is tested.Formula is by weight water glass 100, boric acid 4.51, and KOH3, in raw material, key component mass fraction is: SiO
263.42%, B
2o
36.06%, (Na
2o+K
2o) 30.52%.
By carrying out action of forced stirring according to the raw material of above proportioning, mix, under the prerequisite of gel not, obtain full-bodied sol system; The band abdomen silk steel wire net rack that carries out degreasing processing is placed in high viscosity colloidal sol and is soaked.Then the band abdomen silk steel wire net rack by high viscosity colloidal sol and after soaking is dried 16h at 110 ℃ of temperature, and now the moisture content of middle material is about 35%; Then band abdomen silk steel wire net rack is put in mould, expected to put in equably subsequently in the middle of after cracked, sealed mold also moves in baking oven; Finally with 5 ℃/min of speed, be warming up to 300 ℃ and be incubated 2h, with 2 ℃/min of rate of temperature fall, be down to room temperature and obtain new type low temperature foam glass/steel wire net rack composite insulation boards.
The unit weight of resulting low temperature foam glass is 227kg/m
3, compressive strength 1.38MPa, coefficient of thermal conductivity 0.055W/mK, weight-loss ratio 1.3%, coefficient of softening 92.6%.New type low temperature foam glass/steel wire net rack the composite heat insulation plate structure making according to preparation method of the present invention is simple and direct, and surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good.Low temperature foam glass composite insulation boards technique is simple, and cost is low, is highly suitable for the exterior insulation work of additional decorative layer.
Embodiment 2
Take the liquid potassium water glass that modulus M=3.0, solid content be 37%, borax is that raw material is tested.Formula is by weight water glass 100, borax 10, and in raw material, key component mass fraction is: SiO
257.48%, B
2o
38.67%, (Na
2o+K
2o) 33.85%.
By carrying out action of forced stirring according to the raw material of above proportioning, mix, under the prerequisite of gel not, obtain full-bodied sol system; The band abdomen silk steel wire net rack that carries out degreasing processing is placed in high viscosity colloidal sol and is soaked.Then the band abdomen silk steel wire net rack by high viscosity colloidal sol and after soaking is dried 10h at 120 ℃ of temperature, and now the moisture content of middle material is about 42%; Then band abdomen silk steel wire net rack is put in mould, expected to put in equably subsequently in the middle of after cracked, sealed mold also moves in baking oven; Finally with 15 ℃/min of speed, be warming up to 300 ℃ and be incubated 3h, with 2 ℃/min of rate of temperature fall, be down to room temperature and obtain new type low temperature foam glass/steel wire net rack composite insulation boards.
The unit weight of resulting low temperature foam glass is 185kg/m
3, compressive strength 1.08MPa, coefficient of thermal conductivity 0.053W/mK, weight-loss ratio 1.7%, coefficient of softening 90.2%.New type low temperature foam glass/steel wire net rack the composite heat insulation plate structure making according to preparation method of the present invention is simple and direct, and surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good.Low temperature foam glass composite insulation boards technique is simple, and cost is low, is highly suitable for the exterior insulation work of additional decorative layer.
Embodiment 3
Take the liquid potassium water glass that modulus M=3.0, solid content be 37%, aluminium dihydrogen phosphate is that raw material is tested.Formula is by weight water glass 100, aluminium dihydrogen phosphate 20, and in raw material, key component mass fraction is: SiO
260.36%, Al
2o
38.12%, K
2o 31.52%.
By carrying out action of forced stirring according to the raw material of above proportioning, mix, under the prerequisite of gel not, obtain full-bodied sol system; The band abdomen silk steel wire net rack that carries out degreasing processing is placed in high viscosity colloidal sol and is soaked.Then the band abdomen silk steel wire net rack by high viscosity colloidal sol and after soaking is dried 15h at 90 ℃ of temperature, and now the moisture content of middle material is about 28%; Then band abdomen silk steel wire net rack is put in mould, expected to put in equably subsequently in the middle of after cracked, sealed mold also moves in baking oven; Finally with 20 ℃/min of speed, be warming up to 300 ℃ and be incubated 2h, with 8 ℃/min of rate of temperature fall, be down to room temperature and obtain new type low temperature foam glass/steel wire net rack composite insulation boards.
The unit weight of resulting low temperature foam glass is 165kg/m
3, compressive strength 1.02MPa, coefficient of thermal conductivity 0.050W/mK, weight-loss ratio 2.0%, coefficient of softening 89.7%.New type low temperature foam glass/steel wire net rack the composite heat insulation plate structure making according to preparation method of the present invention is simple and direct, and surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good.Low temperature foam glass composite insulation boards technique is simple, and cost is low, is highly suitable for the exterior insulation work of additional decorative layer.
Embodiment 4
Take the Liquid Sodium water glass that modulus M=3.0, solid content be 37%, aluminium dihydrogen phosphate is that raw material is tested.Formula is by weight water glass 100, aluminium dihydrogen phosphate 20, and in raw material, key component mass fraction is: SiO
260.36%, Al
2o
38.12%, Na
2o 31.52%.
By carrying out action of forced stirring according to the raw material of above proportioning, mix, under the prerequisite of gel not, obtain full-bodied sol system; The band abdomen silk steel wire net rack that carries out degreasing processing is placed in high viscosity colloidal sol and is soaked.Then at room temperature, (approximately 30 ℃) are dried 30h to the band abdomen silk steel wire net rack by high viscosity colloidal sol and after soaking, and now the moisture content of middle material is about 50%; Then band abdomen silk steel wire net rack is put in mould, expected to put in equably subsequently in the middle of after cracked, sealed mold also moves in baking oven; Finally with 15 ℃/min of speed, be warming up to 300 ℃ and be incubated 6h, with 6 ℃/min of rate of temperature fall, be down to room temperature and obtain new type low temperature foam glass/steel wire net rack composite insulation boards.
The unit weight of resulting low temperature foam glass is 254kg/m
3, compressive strength 1.86MPa, coefficient of thermal conductivity 0.053W/mK, weight-loss ratio 1.8%, coefficient of softening 93.7%.New type low temperature foam glass/steel wire net rack the composite heat insulation plate structure making according to preparation method of the present invention is simple and direct, and surperficial cracking resistance is good, and tensile strength and rupture strength are large, fatigue resistance and having good stability, and weight capacity is large, and anti-seismic performance is also very good.Low temperature foam glass composite insulation boards technique is simple, and cost is low, is highly suitable for the exterior insulation work of additional decorative layer.
Claims (5)
1. a preparation method for low temperature foam glass/steel wire net rack composite insulation boards, comprising:
(1) by colloid chemistry technique, under the prerequisite of gel not, obtain colloidal sol;
(2) steel wire net rack with abdomen silk is carried out to degreasing processing, be then placed in above-mentioned colloidal sol and soak, the band abdomen silk steel wire net rack after being soaked after taking-up;
(3) material carried out cracked processing in the middle of colloidal sol step (1) being obtained is dried and obtains, after cracked in the middle of material grain diameter scope be 0.3～1.6mm; After the immersion simultaneously step (2) being obtained, with abdomen silk steel wire net rack, carry out identical dry processing;
(4) the band abdomen silk steel wire net rack after dry processing step (3) being obtained is put in mould, the cracked rear middle material subsequently step (3) being obtained is put in mould equably, finally sealed mould is also heat-treated, and obtains low temperature foam glass/steel wire net rack composite insulation boards;
The concrete operations of the colloid chemistry technique described in step (1) are: one or more in boracic raw material, aluminum-containing raw material, alkali ROH under agitation mix with aqueous silicate solution, when wherein the addition of boracic raw material and aluminum-containing raw material is different, be zero, R is one or more in Li, Na, K;
Described low temperature foam glass/steel wire net rack composite insulation boards, comprise: insulation layer (3), surface course (1) and abdomen silk (2), described insulation layer (3) is low temperature foam glass, surface course (1) is steel wire net rack, it is characterized in that: steel wire net rack infilters the surface of low temperature foam glass and fits, and be interspersed with on steel wire net rack with it steel wire net rack and low temperature foam glass are played to abdomen silk (2) fixing, supporting role; The interspersed mode of described abdomen silk (2) is oblique cutting; Described abdomen silk (2) adopts the steel wire identical with surface course to make.
2. the preparation method of a kind of low temperature foam glass/steel wire net rack composite insulation boards according to claim 1, is characterized in that: described boracic raw material is boric acid, containing one or more in boron mineral.
3. the preparation method of a kind of low temperature foam glass/steel wire net rack composite insulation boards according to claim 1, is characterized in that: described aluminum-containing raw material is one or more in aluminium dihydrogen phosphate, aluminum phosphate, aluminum-containing mineral.
4. the preparation method of a kind of low temperature foam glass/steel wire net rack composite insulation boards according to claim 1, is characterized in that: in the middle of described in step (3), the moisture content of material is 25～50%.
5. the preparation method of a kind of low temperature foam glass/steel wire net rack composite insulation boards according to claim 1, it is characterized in that: the heat treated concrete operations described in step (4) are: first with 10～40 ℃/min of speed, be warming up to 250～500 ℃ and insulation, temperature retention time is no less than 0.5h, with 1～30 ℃/min of rate of temperature fall, be down to room temperature again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295689.6A CN102797301B (en) | 2012-08-20 | 2012-08-20 | Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295689.6A CN102797301B (en) | 2012-08-20 | 2012-08-20 | Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102797301A CN102797301A (en) | 2012-11-28 |
| CN102797301B true CN102797301B (en) | 2014-08-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888088B (en) * | 2016-06-06 | 2018-06-15 | 李文盛 | Organic material composite extrusion thermal insulation board |
| CN107165294A (en) * | 2017-07-24 | 2017-09-15 | 湖南新能匠材料厂 | A kind of heat-preservation shear wall truss building system and its construction method |
| CN111362582B (en) * | 2020-04-09 | 2021-01-19 | 浙江大学 | Vacuum foaming low-temperature foam glass material and preparation method and application thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218464A1 (en) * | 1992-06-04 | 1993-12-09 | Hans Josef May | Plate-like component and method for its production |
| FR2828507B1 (en) * | 2001-08-10 | 2003-10-24 | Synergie Et Dev Ind | INSULATED AND FIRE-RESISTANT PANEL |
| CN2597587Y (en) * | 2003-02-14 | 2004-01-07 | 赵仲星 | Polystyrene sandwich slab with bidirectional inclined inserted wire 3-D space steel wire net frame |
| CN101144294B (en) * | 2006-08-11 | 2010-12-15 | 北京太空板业股份有限公司 | Composite thermal insulation wall body and method for producing and mounting the same |
| CN200946127Y (en) * | 2006-08-23 | 2007-09-12 | 陕西科技大学 | Wire foam glass |
| CN201087504Y (en) * | 2007-07-10 | 2008-07-16 | 赵海元 | Far-ranging wall |
| CN101545287A (en) * | 2008-03-29 | 2009-09-30 | 周征 | Multifunctional thermal insulation board |
| TW201202025A (en) * | 2010-07-13 | 2012-01-16 | Mao-Hsuan Su | Complex steel plate |
| CN202007462U (en) * | 2011-03-21 | 2011-10-12 | 太原建工集团有限公司 | Rock wool fireproof heat-insulation plate of steel wire net rack |
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