CN103553502A - Lightweight inorganic insulation board containing silica aerogel and preparation method thereof - Google Patents
Lightweight inorganic insulation board containing silica aerogel and preparation method thereof Download PDFInfo
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- CN103553502A CN103553502A CN201310547090.1A CN201310547090A CN103553502A CN 103553502 A CN103553502 A CN 103553502A CN 201310547090 A CN201310547090 A CN 201310547090A CN 103553502 A CN103553502 A CN 103553502A
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Abstract
The invention discloses a lightweight inorganic insulation board containing silica aerogel and a preparation method thereof. The preparation method comprises the following steps: a. preparing surfactant liquid: fully stirring a surfactant and water to prepare a uniform surfactant liquid for standby use; b. preparing powder: fully mixing cement, ash calcium, aerogel, light aggregate fillers, fibers and latex powder and stirring uniformly to prepare powder for standby use; c. preparing the inorganic insulation board: adding the uniformly mixed powder to the surfactant liquid within 5-10 minutes through stirring, then filling the slurry into a die for forming and curing at normal temperature, thus obtaining the final product. Compared with the traditional inorganic insulation boards and insulation boards containing non-silica aerogel, the prepared inorganic insulation board containing silica aerogel has the characteristics of short production cycle, simple and controllable process and low price, has good heat insulation property and effectively solves the problems of high heat conductivity coefficients and higher water absorption of conventional inorganic insulation boards, and the heat conductivity coefficient of the inorganic insulation board can be reduced by 10-30%.
Description
Technical field
The invention belongs to building material field, particularly relate to a kind of inorganic light heat preservation board containing aerosil and preparation method thereof, can prepare at normal temperatures, without special constant temperature and pressure equipment, the inorganic heat-insulation board of preparation is compared than traditional inorganic heat-insulation board, thermal conductivity reduces by 10 ~ 30%, has good thermal and insulating performance.
Background technology
Warming plate on market is divided into inorganic heat-insulation board and organic heat-insulating plate now, and wherein inorganic heat-insulation board is with low cost, has larger application market, but because the thermal conductivity of inorganic heat-insulation board is higher, conducts oneself with dignity larger, has had a strong impact on result of use.
The gather materials preparation method of theremal-preserving heat-insulating material of a kind of aerogel-congtg inorganic light weight is disclosed in patent of invention CN10279586A, because this material does not possess cement, therefore the plate surface that again prepared by this material does not possess the intensity of cement, although the method has been used aerosil, preparation process needs constant temperature and constant voltage, complex process, need through gel, aging, drying and other steps, the production technique time is long, and cost is high.
Summary of the invention
The object of the invention is to propose a kind of inorganic light heat preservation board containing aerosil and preparation method thereof technical scheme, can prepare at normal temperatures, without special constant temperature and pressure equipment, the inorganic heat-insulation board of preparing by the present invention is compared than traditional inorganic heat-insulation board, thermal conductivity reduces by 10 ~ 30%, has good thermal and insulating performance.
To achieve these goals, technical scheme of the present invention is:
Containing an inorganic light heat preservation board for aerosil, be inorganic light weight cement heat preserving plate, described warming plate comprises the raw material of following ratio of weight and number:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-26
Tensio-active agent: 0.3-0.5.
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54.
Further, described cement is ordinary Portland cement to scheme; Described grey calcium fineness is that 300-400 order, its whiteness are not less than 90%; The density of described aerosil is 100-370Kg/m
3; Described light-weight aggregate filler is pearlstone, glass bead, expanded vermiculite; Described tensio-active agent is a kind of or 2 kinds of combinations of methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether; Described rubber powder is latex powder, polyvinyl alcohol; Described fiber is short glass fiber, chopped trevira, chopped polypropylene fibre or wood fibre.
Further, described grey calcium fineness is that 325 orders, its whiteness are 90% to scheme; The density of described aerosil is 300Kg/m
3; Described light-weight aggregate filler is glass bead; Described tensio-active agent is TYLOSE 30000; Described rubber powder is latex powder; Described fiber is that length is the short glass fiber of 3-15mm.
Further, two kinds of combinations of described tensio-active agent are one of them the combinations of methyl cellulose ether and hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether to scheme, and the weight ratio of combination is 1:1.
Further, two kinds of combinations of described tensio-active agent are one of them the combinations of hydroxyethyl ether cellulose and methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxypropyl methyl cellulose ether to scheme, and the weight ratio of combination is 1:1.
Further, the raw material of described ratio of weight and number is scheme:
Cement: 18
Ash calcium: 2.04
Aerosil: 0.3
Light-weight aggregate filler: 25.3
Tensio-active agent: 0.3
Fiber: 0.41
Rubber powder: 0.65
Water: 53.
Further, the raw material of described ratio of weight and number is scheme:
Cement: 19.5
Ash calcium: 4.8
Aerosil: 0.4
Light-weight aggregate filler: 26
Tensio-active agent: 0.5
Fiber: 0.6
Rubber powder: 0.8
Water: 54.
Further, the raw material of described ratio of weight and number is scheme:
Cement: 15
Ash calcium: 0.8
Aerosil: 0.2
Light-weight aggregate filler: 22
Tensio-active agent: 0.3
Fiber: 0.1
Rubber powder: 0.6
Water: 47.
A preparation method for the inorganic light heat preservation board of aerosil, the raw material weight umber ratio of described warming plate is:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-27
Tensio-active agent: 0.3-0.5
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54
Described method comprises the steps order:
A. surfactant soln preparation: tensio-active agent and water are fully stirred, make uniform surfactant soln standby;
B. configure powder: cement, grey calcium, aerosil, light-weight aggregate filler, fiber, rubber powder are fully mixed, and stirring, it is standby to make powder;
C. prepare inorganic heat-insulation board: the powder mixing was joined in the solution of tensio-active agent by stirring in 5-10 minute, afterwards, with the speed of 500-800 rev/min, stir 10-20 minute, then slurry packs mould molding into again, normal temperature maintenance, obtains the finished product.
Scheme is further, in described step c, preparing inorganic heat-insulation board is that the powder mixing was joined in the solution of tensio-active agent by stirring in 6 minutes, afterwards, with the speed of 600 revs/min, stir again 15 minutes, after stirring Deng slurry, pack mould molding into, normal temperature maintenance, obtains the finished product.
The present invention prepare containing aerosil inorganic heat-insulation board and traditional inorganic heat-insulation board with containing the warming plate of non-aerosil, compare have with short production cycle, can prepare at normal temperatures, without special constant temperature and pressure equipment, technique is simply controlled, feature with low cost, thermal conductivity can reduce by 10 ~ 30%, there is good thermal and insulating performance, the A1 level fire-protection rating that meets GB8624-2006 < < material of construction and goods classification system for fire performance > >, effectively solved the high problem of inorganic heat-insulation board thermal conductivity.
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment
Aerosil is a kind of nanoporous light inorganic material, and it has extremely low solid state heat conduction, and gaseous state thermal conduction.It at normal temperatures and pressures thermal conductivity be only 0.011W/(M K), be best a kind of of heat-proof quality in all solid-state materials, the present embodiment is for widely used a kind of modified version with the cement heat preserving plate of some strength on a kind of market.Can be called is a kind of inorganic light weight cement heat preserving plate containing aerosil.
Embodiment 1:
Containing an inorganic light heat preservation board for aerosil, be inorganic light weight cement heat preserving plate, described warming plate comprises the raw material of following ratio of weight and number:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-26
Tensio-active agent: 0.3-0.5
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54.
Wherein, described cement is ordinary Portland cement; Described grey calcium fineness is that 300-400 order, its whiteness are not less than 90%; The density of described aerosil is 100-370Kg/m
3; Described light-weight aggregate filler is pearlstone, glass bead, expanded vermiculite; Described tensio-active agent is a kind of or 2 kinds of combinations of methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether; Described rubber powder is latex powder, polyvinyl alcohol; Described fiber is short glass fiber, chopped trevira, chopped polypropylene fibre or wood fibre.Wherein, the length of chopped strand is generally 3-15mm, and the length of wood fibre is generally 0.5-3mm.
A kind of preferred plan in embodiment is: described grey calcium fineness is that 325 orders, its whiteness are 90%; The density of described aerosil is 300Kg/m
3; Described light-weight aggregate filler is glass bead; Described tensio-active agent is TYLOSE 30000; Described rubber powder is latex powder; Described fiber is that length is the short glass fiber of 3-15mm.
In embodiment: two kinds of combinations of described tensio-active agent are one of them the combinations of methyl cellulose ether and hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether, and the weight ratio of combination is 1:1.
Or two kinds of combinations of described tensio-active agent are one of them the combinations of hydroxyethyl ether cellulose and methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxypropyl methyl cellulose ether, the weight ratio of combination is 1:1.
Facts have proved that effect that above-mentioned two kinds of combinations are played is better than a kind of use of promoting agent, can reduce the churning time of half conventionally.
Embodiment 2:
The present embodiment is a preferred version of embodiment 1, and the weight unit of the present embodiment is kilogram (1000 grams), wherein: the raw material of described ratio of weight and number is:
Cement: 18
Ash calcium: 2.04
Aerosil: 0.3
Light-weight aggregate filler: 25.3
Tensio-active agent: 0.3
Fiber: 0.41
Rubber powder: 0.65
Water: 53
Embodiment 3:
The present embodiment is a preferred version of embodiment 1, and the weight unit of the present embodiment is kilogram (1000 grams), wherein: the raw material of described ratio of weight and number is:
Cement: 19.5
Ash calcium: 4.8
Aerosil: 0.4
Light-weight aggregate filler: 26
Tensio-active agent: 0.5
Fiber: 0.6
Rubber powder: 0.8
Water: 54.
Embodiment 4:
The present embodiment is another preferred version of embodiment 1, and the weight unit of the present embodiment is kilogram (1000 grams), wherein: the raw material of described ratio of weight and number is:
Cement: 15
Ash calcium: 0.8
Aerosil: 0.2
Light-weight aggregate filler: 22
Tensio-active agent: 0.3
Fiber: 0.1
Rubber powder: 0.6
Water: 47.
Embodiment 5:
A preparation method for the inorganic light heat preservation board of aerosil, the present embodiment method has been used composition of raw materials and the combination of warming plate described in embodiment 1;
The raw material weight umber ratio of described warming plate is:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-27
Tensio-active agent: 0.3-0.5
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54
Described method comprises the steps order:
A. surfactant soln preparation: tensio-active agent and water are fully stirred, make uniform surfactant soln standby;
B. configure powder: cement, grey calcium, aerosil, light-weight aggregate filler, fiber, rubber powder are fully mixed, and stirring, it is standby to make powder;
C. prepare inorganic heat-insulation board: the powder mixing was joined in the solution of tensio-active agent by stirring in 5-10 minute, afterwards, with the speed of 500-800 rev/min, stir 10-20 minute, then slurry packs mould molding into again, normal temperature maintenance, obtains the finished product.The time of normal temperature maintenance is greater than 12 hours, is generally 24 hours.
Wherein, described cement is ordinary Portland cement; Described grey calcium fineness is that 300-400 order, its whiteness are not less than 90%; The density of described aerosil is 100-370Kg/m
3; Described light-weight aggregate filler is pearlstone, glass bead, expanded vermiculite; Described tensio-active agent is a kind of or 2 kinds of combinations of methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether; Described rubber powder is latex powder, polyvinyl alcohol; Described fiber is short glass fiber, chopped trevira, chopped polypropylene fibre or wood fibre.Wherein, the length of chopped strand is generally 3-15mm, and the length of wood fibre is generally 0.5-3mm.
A preferred version in embodiment is: in described step c, preparing inorganic heat-insulation board is that the powder mixing was joined in the solution of tensio-active agent by stirring in 6 minutes, afterwards, with the speed of 600 revs/min, stir again 15 minutes, after stirring Deng slurry, pack mould molding into, normal temperature maintenance, obtains the finished product.
Embodiment 6:
The present embodiment is a preferred version of embodiment 5, and the weight unit of the present embodiment is kilogram (1000 grams), and wherein, the raw material weight umber ratio of described warming plate is:
Cement: 18
Ash calcium: 2.04
Aerosil: 0.3
Light-weight aggregate filler: 25.3
Tensio-active agent: 0.3
Fiber: 0.41
Rubber powder: 0.65
Water: 53.
Wherein: the fineness of described grey calcium is that 325 orders, its whiteness are 90%; The density of described aerosil is 300Kg/m
3; Described light-weight aggregate filler is glass bead; Described tensio-active agent is TYLOSE 30000; Described rubber powder is latex powder; Described fiber is that length is the short glass fiber of 3-15mm.
The cement increasing in above-described embodiment, grey calcium, tensio-active agent, fiber and rubber powder can be prepared inorganic light heat preservation board at normal temperatures, without special constant temperature and pressure equipment, according to said method containing aerosil inorganic heat-insulation board dry density, can reach 280 kg/m with prepared by proportioning
3than traditional inorganic heat-insulation board, compare, thermal conductivity reduces by 15%, there is good thermal and insulating performance, the A1 level fire-protection rating that meets GB8624-2006 < < material of construction and goods classification system for fire performance > >, has effectively solved high the asking of inorganic heat-insulation board thermal conductivity.
Claims (10)
1. containing an inorganic light heat preservation board for aerosil, be inorganic light weight cement heat preserving plate, it is characterized in that, described warming plate comprises the raw material of following ratio of weight and number:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-26
Tensio-active agent: 0.3-0.5
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54.
2. a kind of inorganic light heat preservation board containing aerosil according to claim 1, is characterized in that, described cement is ordinary Portland cement; Described grey calcium fineness is 300-400 order, and its whiteness is not less than 90%; The tap density of described aerosil is 100～370Kg/m
3; Described light-weight aggregate filler is pearlstone, glass bead, expanded vermiculite; Described tensio-active agent is a kind of or two kinds of combinations of methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether; Described rubber powder is latex powder, polyvinyl alcohol; Described fiber is short glass fiber, chopped trevira, chopped polypropylene fibre or wood fibre.
3. a kind of inorganic light heat preservation board containing aerosil according to claim 2, is characterized in that, described grey calcium fineness is 325 orders, and its whiteness is 90%; The tap density of described aerosil is 300Kg/m
3; Described light-weight aggregate filler is glass bead; Described tensio-active agent is TYLOSE 30000; Described rubber powder is latex powder; Described fiber is that length is the short glass fiber of 3～15mm.
4. a kind of inorganic light heat preservation board containing aerosil according to claim 2, it is characterized in that, two kinds of combinations of described tensio-active agent are one of them the combinations of methyl cellulose ether and hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose, hydroxypropyl methyl cellulose ether, and the weight ratio of combination is 1:1.
5. a kind of inorganic light heat preservation board containing aerosil according to claim 2, it is characterized in that, two kinds of combinations of described tensio-active agent are one of them the combinations of hydroxyethyl ether cellulose and methyl cellulose ether, hydroxyethylmethyl-cellulose ether, TYLOSE 30000, hydroxypropyl methyl cellulose ether, and the weight ratio of combination is 1:1.
6. a kind of inorganic light heat preservation board containing aerosil according to claim 1, is characterized in that, the raw material of described ratio of weight and number is:
Cement: 18
Ash calcium: 2.04
Aerosil: 0.3
Light-weight aggregate filler: 25.3
Tensio-active agent: 0.3
Fiber: 0.41
Rubber powder: 0.65
Water: 53.
7. a kind of inorganic light heat preservation board containing aerosil according to claim 1, is characterized in that, the raw material of described ratio of weight and number is:
Cement: 19.5
Ash calcium: 4.8
Aerosil: 0.4
Light-weight aggregate filler: 26
Tensio-active agent: 0.5
Fiber: 0.6
Rubber powder: 0.8
Water: 54.
8. a kind of inorganic light heat preservation board containing aerosil according to claim 1, is characterized in that, the raw material of described ratio of weight and number is:
Cement: 15
Ash calcium: 0.8
Aerosil: 0.2
Light-weight aggregate filler: 22
Tensio-active agent: 0.3
Fiber: 0.1
Rubber powder: 0.6
Water: 47.
9. contain a preparation method for the inorganic light heat preservation board of aerosil, the raw material weight umber ratio of described warming plate is:
Cement: 15-19.5
Ash calcium: 0.8-4.8
Aerosil: 0.2-0.4
Light-weight aggregate filler: 22-27
Tensio-active agent: 0.3-0.5
Fiber: 0.1-0.6
Rubber powder: 0.6-0.8
Water: 47-54
It is characterized in that, described method comprises the steps:
A. surfactant soln preparation: tensio-active agent and water are fully stirred, make uniform surfactant soln standby;
B. configure powder: cement, grey calcium, aerosil, light-weight aggregate filler, fiber, rubber powder are fully mixed, and stirring, it is standby to make powder;
C. prepare inorganic heat-insulation board: the powder mixing was joined in the solution of tensio-active agent by stirring in 5-10 minute, afterwards, with the speed of 500-800 rev/min, stir 10-20 minute, then slurry packs mould molding into again, normal temperature maintenance, obtains the finished product.
10. the preparation method of a kind of inorganic light heat preservation board containing aerosil according to claim 9, it is characterized in that, in described step c, preparing inorganic heat-insulation board is that the powder mixing was joined in the solution of tensio-active agent by stirring in 6 minutes, afterwards, with the speed of 600 revs/min, stir again 15 minutes, after waiting slurry to stir, pack mould molding into, normal temperature maintenance, obtains the finished product.
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| CN104496399A (en) * | 2014-12-15 | 2015-04-08 | 苏州同玄新材料有限公司 | Aerogel building heat preservation and thermal insulation composite material and preparation method thereof |
| CN105503046A (en) * | 2015-09-09 | 2016-04-20 | 杭州来宝得新材料科技有限公司 | High-performance heat-preservation thermal-insulation wall material |
| CN106116428A (en) * | 2016-06-29 | 2016-11-16 | 合肥广能新材料科技有限公司 | Silica containing inorganic heat insulation material and preparation method thereof |
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| CN104496399A (en) * | 2014-12-15 | 2015-04-08 | 苏州同玄新材料有限公司 | Aerogel building heat preservation and thermal insulation composite material and preparation method thereof |
| CN106316329A (en) * | 2015-06-17 | 2017-01-11 | 天津城建大学 | Inorganic foamed building heat insulation board and making method thereof |
| CN105503046A (en) * | 2015-09-09 | 2016-04-20 | 杭州来宝得新材料科技有限公司 | High-performance heat-preservation thermal-insulation wall material |
| CN106116428A (en) * | 2016-06-29 | 2016-11-16 | 合肥广能新材料科技有限公司 | Silica containing inorganic heat insulation material and preparation method thereof |
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| CN107512926B (en) * | 2017-08-22 | 2020-11-20 | 陈晓星 | Foaming aerogel thermal insulation slurry and preparation method thereof |
| CN107512926A (en) * | 2017-08-22 | 2017-12-26 | 广州谱梦新材料技术有限公司 | One kind foaming aeroge heat preservation slurry and preparation method thereof |
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| CN107572938A (en) * | 2017-10-19 | 2018-01-12 | 江苏绿悦保温材料有限公司 | A kind of modified graphite aeroge self-insulation wall material |
| CN108455920A (en) * | 2018-04-01 | 2018-08-28 | 中鸿纳米纤维技术丹阳有限公司 | A kind of high porosity expanded perlite thermal-nsulation felt based on aeroge |
| CN108643398A (en) * | 2018-05-24 | 2018-10-12 | 谢思松 | Steel wire net rack gel bead building partition heat-insulation system and its installation method |
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Application publication date: 20140205 |