CN102745955B - Preparation process for three-dimensional mesh cloth foaming cement composite material - Google Patents
Preparation process for three-dimensional mesh cloth foaming cement composite material Download PDFInfo
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- CN102745955B CN102745955B CN201110281367.1A CN201110281367A CN102745955B CN 102745955 B CN102745955 B CN 102745955B CN 201110281367 A CN201110281367 A CN 201110281367A CN 102745955 B CN102745955 B CN 102745955B
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Abstract
The present invention discloses a preparation process for a three-dimensional mesh cloth foaming cement composite material. The preparation process comprises the following process steps: preparing a three-dimensional mesh cloth skeleton; pre-mixing a foaming cement board master batch; pouring the resulting foaming cement board master batch into water, stirring for 30-60 seconds, pouring silicate cement and special cement into the water, and stirring for 15-30 seconds; adding a composite foaming agent, and stirring for 15-30 seconds; pouring the resulting slurry into a mold placed with the three-dimensional mesh cloth skeleton, and carrying out injection molding to prepare a composite material; and carrying out hardening, mold removing and watering, and carrying out film concrete curing until the curing time is achieved to obtain the three-dimensional mesh cloth foaming cement composite material of the present invention. The product of the present invention has characteristics of light weight, thermal insulation, durability, heat insulation, sound insulation, and good mechanical strength, can be adopted as an excellent thermal insulation material for building energy saving, and can further be widely used in pouring of building roofing, grounds, inside and outside walls, and the like.
Description
Technical field
The present invention relates to building material field, particularly relate to a kind of preparation technology of 3D grid cloth foaming cement composite material.
Background technology
In recent years, porous plastics caused continuously wildfire in building heat preservation construction, had caused serious loss, had caused the great attention of relevant departments.Although inorganic heat insulation material also exists, density is large, the heat retaining property deficiency poor compared with organic foam material, and from fire prevention angle, with inorganic heat insulation material, replacing organic foam material has become current developing trend.In inorganic non-combustible material, multicellular glass, foamed ceramics on the high side; Harmful in and although the fiber heat preservation material prices such as rock wool, mineral wool are lower slightly, producing, using; The water-intake rate such as pearlstone, expanded vermiculite is also higher.
Foam cement plate is a kind of external-wall heat-insulation material rising gradually at present, it have be difficult for aging, completely and the same life-span of buildings, unit weight is light, thermal conductivity is low, and fire endurance more than 3 hours, can not produce the advantages such as toxic gas under high temperature or fire condition, but the shortcoming of foam cement version also clearly, be exactly that mechanical property is poor, intensity is lower, and fragility is larger, be very easy to fracture, breakage, brought very large inconvenience to transportation and construction process.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of good mechanical performance, the preparation technology of the 3D grid cloth foaming cement composite material that intensity is high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of preparation technology of 3D grid cloth foaming cement composite material is provided, and this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
The tridimensional network of its cross section is rectangular or figure of eight structure, applies with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, carries out alkaline-resisting coating processing, then passes through epoxy resin coating processing, obtains 3D grid cloth skeleton;
(2) premix of foam cement plate masterbatch
The adjustable solidification agent of the fiber of the water reducer of the hydrophober of the flyash of 0-10 weight part, 1.0-3.0 weight part, 0.05-1 weight part, 0-2.5 weight part, 0-3 weight part is fully mixed in mixing machine to 3-5 minute, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 16-35 weight part, stir 30-60s, then the special cement of the silicate cement of 45-75 weight part and 5-25 weight part is put into and in water, stirred 15-30s, finally add the composite foamable agent of 2.0-7.0 weight part to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
In a preferred embodiment of the present invention, the tridimensional network described in step (1) is middle alkali or alkali free glass fibre woven fabrics.
In a preferred embodiment of the present invention, the epoxy resin described in step (1) be in glycidyl ether based epoxy resin, alicyclic based epoxy resin or the aliphatic category epoxy resin of low oxirane value.
In a preferred embodiment of the present invention, the flyash described in step (2) is a kind of in first level flour coal ash or second class powered coal ash.
In a preferred embodiment of the present invention, the hydrophober described in step (2) is a kind of in silicane or type siloxane hydrophober.
In a preferred embodiment of the present invention, the water reducer described in step (2) is a kind of in naphthalene system, melamine system or poly carboxylic acid series water reducer.
In a preferred embodiment of the present invention, the fiber described in step (2) is one or more in mineral fibre, trevira or polypropylene fibre.
In a preferred embodiment of the present invention, the adjustable solidification agent described in step (2) is one or more in muriate, vitriol, carbonate, aluminate, silicate.
In a preferred embodiment of the present invention, the composite foamable agent described in step (3) is hydride class whipping agent.
The invention has the beneficial effects as follows:
1, the present invention's filling-foam cement plate masterbatch in 3D grid cloth skeleton structure, being integrally formed structure, retained the advantage that foam cement plate is fire-resistant, not aging, thermal conductivity is low, simultaneously owing to having introduced three grid cloth skeleton structures, can obviously improve its toughness, reduce its fragility, improved shock resistance, the problem of having avoided traditional foam cement plate especially easily to destroy in transportation, construction process.
2, the 3D grid cloth foaming cement composite material that adopts the present invention to make, the feature with lightweight, insulation, durable, heat insulation, sound insulation, there is again good mechanical strength simultaneously, can be used as good heat preserving and insulating material for building energy conservation, also can be widely used in and build building roof, ground, external and internal wall etc. simultaneously.
Embodiment
A preparation technology for 3D grid cloth foaming cement composite material, this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
The tridimensional network of its cross section is rectangular or figure of eight structure, applies with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, carries out alkaline-resisting coating processing, then passes through epoxy resin coating processing, obtains 3D grid cloth skeleton;
(2) premix of foam cement plate masterbatch
The adjustable solidification agent of the fiber of the water reducer of the hydrophober of the flyash of 0-10 weight part, 1.0-3.0 weight part, 0.05-1 weight part, 0-2.5 weight part, 0-3 weight part is fully mixed in mixing machine to 3-5 minute, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 16-35 weight part, stir 30-60s, then the special cement of the silicate cement of 45-75 weight part and 5-25 weight part is put into and in water, stirred 15-30s, finally add the composite foamable agent of 2.0-7.0 weight part to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
In the present invention, the tridimensional network described in step (1) is middle alkali or alkali free glass fibre woven fabrics; Epoxy resin described in step (1) be in glycidyl ether based epoxy resin, alicyclic based epoxy resin or the aliphatic category epoxy resin of low oxirane value; Flyash described in step (2) is a kind of in first level flour coal ash or second class powered coal ash; Hydrophober described in step (2) is a kind of in silicane or type siloxane hydrophober; Water reducer described in step (2) is a kind of in naphthalene system, melamine system or poly carboxylic acid series water reducer; Fiber described in step (2) is one or more in mineral fibre, trevira or polypropylene fibre; Adjustable solidification agent described in step (2) is one or more in muriate, vitriol, carbonate, aluminate, silicate; Composite foamable agent described in step (3) is hydride class whipping agent.
Specific embodiment 1
A preparation technology for 3D grid cloth foaming cement composite material, this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
Rectangular or the figure of eight structure by its cross section, medium-alkali glass fibre woven fabrics tridimensional network, applies with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, carries out alkaline-resisting coating processing, through the glycidyl ether based epoxy resin coating processing of too low oxirane value, obtain 3D grid cloth skeleton again;
(2) premix of foam cement plate masterbatch
The muriate adjustable solidification agent of the mineral fibre of the naphthalene water reducer of the silicane hydrophober of the first level flour coal ash of 1 weight part, 3.0 weight parts, 0.8 weight part, 0.5 weight part, 0.1 weight part is fully mixed 3 minutes in mixing machine, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 16 weight parts, stir 30-60s, then the special cement of the silicate cement of 75 weight parts and 5 weight parts is put into and in water, stirred 15-30s, finally add the hydride class whipping agent of 2 weight parts to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
Specific embodiment 2
A preparation technology for 3D grid cloth foaming cement composite material, this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
Rectangular or the figure of eight structure by its cross section, alkali free glass fibre woven fabrics tridimensional network, applies with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, carries out alkaline-resisting coating processing, through the glycidyl ether based epoxy resin coating processing of too low oxirane value, obtain 3D grid cloth skeleton again;
(2) premix of foam cement plate masterbatch
The vitriol adjustable solidification agent of the trevira of the melamine based water reducer of the silicane hydrophober of the first level flour coal ash of 5 weight parts, 2.0 weight parts, 0.6 weight part, 1.3 weight parts, 1.5 weight parts is fully mixed 4 minutes in mixing machine, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 25 weight parts, stir 30-60s, then the special cement of the silicate cement of 60 weight parts and 12 weight parts is put into and in water, stirred 15-30s, finally add the hydride class whipping agent of 4.5 weight parts to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
Specific embodiment 3
A preparation technology for 3D grid cloth foaming cement composite material, this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
Rectangular or the figure of eight structure by its cross section, alkali free glass fibre woven fabrics tridimensional network, applies with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, carries out alkaline-resisting coating processing, then passes through aliphatic category epoxy resin coating processing, obtains 3D grid cloth skeleton;
(2) premix of foam cement plate masterbatch
The silicate adjustable solidification agent of the polypropylene fibre of the poly carboxylic acid series water reducer of the type siloxane hydrophober of the second class powered coal ash of 10 weight parts, 1.0 weight parts, 0.2 weight part, 2.5 weight parts, 3 weight parts is fully mixed 5 minutes in mixing machine, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 35 weight parts, stir 30-60s, then the special cement of the silicate cement of 45 weight parts and 25 weight parts is put into and in water, stirred 15-30s, finally add the hydride class whipping agent of 7.0 weight parts to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
Specific embodiment 1 to the property indices of the product of specific embodiment 3 is pressed JG/T041-2011 < < composite foaming cement plate exterior wall external heat preservation system utilisation technology rules > > and is detected, with common foam cement plate correlation data as following table 1:
Table 1
| Project | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Common foam cement plate |
| Dry density | kg/m | 280 | 285 | 284 | 276 |
| Thermal conductivity | W/(m·k) | 0.071 | 0.08 | 0.075 | 0.070 |
| Ultimate compression strength | MPa | 0.89 | 0.85 | 0.90 | 0.75 |
| Tensile strength | MPa | 0.19 | 0.18 | 0.17 | 0.16 |
| Water-intake rate (V/V) | ％ | 6.5 | 6.4 | 6.3 | 6.7 |
| Drying shrinkage value | mm/m | 0.21 | 0.20 | 0.19 | 0.32 |
| Carbonation coefficient | - | 0.90 | 0.91 | 0.92 | 0.89 |
| Coefficient of softening | - | 0.95 | 0.94 | 0.96 | 0.93 |
By table 1, can be drawn, the indices of 3D grid cloth foaming cement composite material of the present invention all meets standard-required, and wherein ultimate compression strength, tensile strength, the several indexs of drying shrinkage value are all obviously better than common foam cement plate.
The present invention is filling-foam cement plate masterbatch in 3D grid cloth skeleton structure, being integrally formed structure, retained the advantage that foam cement plate is fire-resistant, not aging, thermal conductivity is low, simultaneously owing to having introduced three grid cloth skeleton structures, can obviously improve its toughness, reduce its fragility, improved shock resistance, the problem of having avoided traditional foam cement plate especially easily to destroy in transportation, construction process.
The 3D grid cloth foaming cement composite material that adopts the present invention to make, the feature with lightweight, insulation, durable, heat insulation, sound insulation, there is again good mechanical strength simultaneously, can be used as good heat preserving and insulating material for building energy conservation, also can be widely used in and build building roof, ground, external and internal wall etc. simultaneously.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a preparation technology for 3D grid cloth foaming cement composite material, is characterized in that, this preparation technology comprises following processing step:
(1) preparation of 3D grid cloth skeleton
The tridimensional network of its cross section is rectangular or figure of eight structure, with styrene-butadiene rubber(SBR) and pure-acrylic emulsion, apply, carry out alkaline-resisting coating processing, pass through again epoxy resin coating processing, obtain 3D grid cloth skeleton, wherein, described epoxy resin be in glycidyl ether based epoxy resin or the aliphatic category epoxy resin of low oxirane value;
(2) premix of foam cement plate masterbatch
The adjustable solidification agent of the fiber of the water reducer of the hydrophober of the flyash of 0-10 weight part, 1.0-3.0 weight part, 0.05-1 weight part, 0-2.5 weight part, 0-3 weight part is fully mixed in mixing machine to 3-5 minute, make foam cement plate masterbatch;
(3) foaming of matrix material
First the foam cement plate masterbatch obtaining in step (2) is put in the water of 16-35 weight part, stir 30-60s, then the special cement of the silicate cement of 45-75 weight part and 5-25 weight part is put into and in water, stirred 15-30s, finally add the composite foamable agent of 2.0-7.0 weight part to stir 15-30s, resulting slip is poured into casting in the mould that is placed with 3D grid cloth skeleton and become matrix material, in whole whipping process, the temperature of slip is controlled at 30-40 ℃;
(4) sclerosis and maintenance
After good sheet material to be formed sclerosis, form removal is watered, overlay film maintenance is to the size that can cut into appointment after the length of time, can obtain 3D grid cloth foaming cement composite material of the present invention.
2. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the tridimensional network described in step (1) is middle alkali or alkali free glass fibre woven fabrics.
3. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the flyash described in step (2) is a kind of in first level flour coal ash or second class powered coal ash.
4. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the hydrophober described in step (2) is a kind of in silicane or type siloxane hydrophober.
5. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the water reducer described in step (2) is a kind of in naphthalene system, melamine system or poly carboxylic acid series water reducer.
6. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the fiber described in step (2) is one or more in mineral fibre, trevira or polypropylene fibre.
7. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the adjustable solidification agent described in step (2) is one or more in muriate, vitriol, carbonate, aluminate, silicate.
8. the preparation technology of 3D grid cloth foaming cement composite material according to claim 1, is characterized in that, the composite foamable agent described in step (3) is hydride class whipping agent.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103086740A (en) * | 2013-01-16 | 2013-05-08 | 东南大学 | Three-dimensional spaced fabric reinforced inorganic fireproofing foam insulation board and preparation method thereof |
| CN103924760A (en) * | 2014-04-17 | 2014-07-16 | 安徽华普节能材料股份有限公司 | Manufacturing technology of assembly-type outer wall decoration inorganic sandwich composite heat-preserving board |
| CN104016642B (en) * | 2014-06-24 | 2016-08-24 | 哈尔滨工业大学 | The preparation method of the composite light cement that a kind of profiled polymer structure strengthens |
| CN105625660B (en) * | 2015-12-25 | 2018-10-12 | 中国建筑材料科学研究总院 | 3D fabrics enhance foam concrete heat-preserving decoration integrated board and preparation method thereof |
| CN105802108B (en) * | 2016-03-18 | 2018-09-07 | 新昌县羽林街道达康机械厂 | A kind of lathe ground built using foam cement |
| CN112094095A (en) * | 2019-06-17 | 2020-12-18 | 南京倍立达欧陆装饰艺术工程有限公司 | Decorative thin panel and preparation method thereof |
| CN110818367B (en) * | 2019-10-15 | 2022-06-21 | 大同冀东水泥有限责任公司 | Cement-based repair mortar composition and preparation method thereof |
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| CN2483462Y (en) * | 2001-06-19 | 2002-03-27 | 林华勳 | Three-D net type structure fire-proof slab |
| CN101858115A (en) * | 2010-04-29 | 2010-10-13 | 江西创行高科股份有限公司 | Cast-in-place foamed concrete composite wallboard |
| CN102094501A (en) * | 2010-12-14 | 2011-06-15 | 南京倍立达实业有限公司 | Glass fiber reinforced cement (GRC) insulation decorative wallboard and production method thereof |
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Patent Citations (3)
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| CN2483462Y (en) * | 2001-06-19 | 2002-03-27 | 林华勳 | Three-D net type structure fire-proof slab |
| CN101858115A (en) * | 2010-04-29 | 2010-10-13 | 江西创行高科股份有限公司 | Cast-in-place foamed concrete composite wallboard |
| CN102094501A (en) * | 2010-12-14 | 2011-06-15 | 南京倍立达实业有限公司 | Glass fiber reinforced cement (GRC) insulation decorative wallboard and production method thereof |
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Address after: 213044 Jiangsu Province, Changzhou city Wujin District Zou Quzhen Bu Yi Industrial Zone, Road No. 1 Patentee after: Jiangsu Nigao Science & Technology Co., Ltd. Patentee after: Changzhou Institute of building science group Limited by Share Ltd Address before: 213044 Jiangsu Province, Changzhou city Wujin District Zou Quzhen Bu Yi Industrial Zone, Road No. 1 Patentee before: Jiangsu Nigao Science & Technology Co., Ltd. Patentee before: Changzhou Architectural Research Institute Co., Ltd. |