CN112301769A - Flexible building template material, preparation method and application thereof - Google Patents
Flexible building template material, preparation method and application thereof Download PDFInfo
- Publication number
- CN112301769A CN112301769A CN202010980235.7A CN202010980235A CN112301769A CN 112301769 A CN112301769 A CN 112301769A CN 202010980235 A CN202010980235 A CN 202010980235A CN 112301769 A CN112301769 A CN 112301769A
- Authority
- CN
- China
- Prior art keywords
- aerogel
- silicone oil
- building template
- template
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6133—Addition products of hydroxyl groups-containing compounds with oxiranes from araliphatic or aliphatic alcohols
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a flexible building template material, a preparation method and application thereof, and belongs to a basic building template material. The method comprises the following steps: soaping polyester fibers, preparing aerogel, dyeing the aerogel, drying the aerogel in vacuum at low temperature, and carrying out vacuum drying. According to the invention, the silica aerogel is dyed into the polyester fiber to provide a carrier for the silica aerogel, so that a light and soft heat-insulation composite material barrier is prepared, the heat-insulation performance in a building template is improved, the demoulding difficulty caused by concrete construction icing is avoided, and the use of concrete additives such as an antifreezing agent, an early strength agent, a retarder and the like in concrete can be saved. And then a layer of phenolic resin is added on the surface of the heat insulation composite material, so that the surface smoothness is improved, the composite material can be used as a bare concrete template, the plastering process after the template is removed can be omitted, the construction cost is greatly saved, and the construction period is shortened.
Description
Technical Field
The invention belongs to a basic building template material, in particular to a flexible building template material, a preparation method and application thereof.
Background
The building formwork is a temporary supporting structure, which is manufactured according to the design requirements, so that the concrete structure and the members are formed according to the specified positions and geometric dimensions, the correct positions of the concrete structure and the members are kept, and the self weight of the building formwork and the external load acting on the building formwork are borne. The purpose of the template engineering is to ensure the quality and the construction safety of the concrete engineering, accelerate the construction progress and reduce the engineering cost.
A building template structure for cast-in-place concrete structural engineering construction mainly comprises a panel, a supporting structure and a connecting piece. The panel is a bearing plate directly contacting with newly poured concrete: the supporting structure is a temporary structure for supporting the panel, the concrete and the construction load, so that the building template structure is firmly combined and is not deformed or damaged; the connecting piece is a fitting for integrally connecting the panel and the support structure. In modern formwork technology, the steel formwork has the advantages of strong universality, convenient assembly and disassembly, multiple turnover times and the like, and can be used for cast-in-place reinforced concrete structure construction, large formworks of beams, columns, walls and floor slabs can be assembled in advance according to design requirements, and the large formworks can be integrally hoisted in place or can be disassembled in bulk. At present, when a building, particularly a heat-insulating building wall is built, a metal plate type template is generally used, in the building process, a hollow wall model is assembled by the template, concrete slurry is filled in the inner space, and the template is removed after the concrete is cured.
In the actual production process, the applicant finds that the traditional building template has the following problems: the plant template in the building template has the advantages of high cost and short service life because the plant templates such as bamboo and wood are easy to absorb moisture, mildew and rot, acid and alkali resistance, crack, warp and turn, shrinkage and low hardness. The metal templates in the building templates have poor heat insulation performance, and the demolding is difficult and the insulation performance is poor due to icing in winter concrete construction. The applicant has therefore tried to solve the above-mentioned problems by laying a layer of heat insulating material on the inner layer of the metal building forms
However, the most effective of the existing heat insulation materials is the silica aerogel material, but the preparation process of the aerogel is complex and expensive, and the aerogel is not suitable for wide-range use. More importantly, the brittleness of the aerogel is difficult to form a complete closed curved surface in the cavity of the die system, and the airtightness is kept when the aerogel contacts with a hard concrete material; therefore, the effect during actual use is not ideal. In order to solve the brittleness of the silica aerogel and improve the practicability of the silica aerogel, after the applicant consults literature data and experiments, one layer or a plurality of layers of silica aerogel is uniformly coated on the surface of the fabric by adopting a coating method, and one layer or a plurality of layers of heat insulation films are formed on the surface of the fabric through adhesion. However, since the diaphragm film needs to be in direct contact with the concrete mortar for a long time, the thermal insulation film obtained by the coating method is easy to discolor under long-term friction and alkaline conditions.
Disclosure of Invention
The purpose of the invention is as follows: provided are a flexible building template material, a preparation method and an application thereof, which solve the problems involved in the background art.
The technical scheme is as follows: the invention provides a preparation method of a flexible building template material, which comprises the following steps:
and 4, low-temperature vacuum drying: taking out the dyed polyester fibers, placing the polyester fibers in a vacuum freeze dryer, and keeping the temperature for 3-5 hours under the conditions that the temperature is-40 to-35 ℃ and the vacuum degree is 2-5 kPa to remove residual solvent in the inorganic fibers;
As a preferable scheme, the aerogel is silicon dioxide aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity coefficient of the aerogel at normal temperature is 0.015-0.021W/m.K.
As a preferable embodiment, the silica aerogel is subjected to a sensitization treatment and an activation treatment before use.
As a preferable scheme, the sensitization treatment process comprises the following steps: the sensitization treatment process comprises the following steps: soaking silica aerogel in 0.2-0.5 g/L palladium chloride and 0.2-0.5 g/L TiCl at normal temperature3Treating in hydrochloric acid solution for 15-25 min, and then washing with water.
As a preferable embodiment, the activation treatment process includes: soaking the sensitized silicon dioxide aerogel in an activation solution consisting of 12-20 g/L beta-cyclodextrin solution and 50wt% ethanol solution at normal temperature, adjusting the pH to 9-11, carrying out water bath aging treatment at 30-70 ℃ for 20-30 min, and then washing with water.
As a preferable scheme, the preparation process of the silicone oil modified phenolic resin solution comprises the following steps: firstly, respectively mixing and stirring the silane coupling agent KH-570, the mineral oil, the silicone oil, the flexibilizer and the softened water uniformly, then adding the ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing into an aqueous solution, and continuously stirring.
As a preferable scheme, the silicone oil is a linear polysiloxane finished product which keeps a liquid state at room temperature, and the structural formula of the silicone oil is as follows:
wherein R is alkyl chain and aromatic hydrocarbon; r' is alkyl chain, aromatic hydrocarbon, hydrogen, carbon-based functional group or polyether chain; x is alkyl chain, aromatic hydrocarbon, alkoxy, acetoxyl, chlorine, hydrogen, carbon-based functional group or polyether chain; n, m =0, 1, 2, 3 ….
As a preferable scheme, the silicone oil is methyl silicone oil, hydroxyl silicone oil, amino silicone oil or watt silicone oil.
The invention also provides a high-flexibility heat insulation material obtained by the preparation method based on the flexible building template material.
The invention also provides application of the flexible building template-based material as a building template heat-insulating material, which is characterized in that the application method comprises the following steps:
and 4, horizontally installing the first template block, vertically installing the second template block through angle steel, installing a plurality of second template blocks and third template blocks through connecting plates and bolts according to design requirements to form a closed cavity, finally pouring concrete slurry into the cavity, and removing the template blocks after the concrete is solidified.
Has the advantages that: the invention relates to a flexible building template material, a preparation method and application thereof. And then a layer of phenolic resin is added on the surface of the heat insulation composite material, so that the surface smoothness is improved, the composite material can be used as a bare concrete template, the plastering process after the template is removed can be omitted, the construction cost is greatly saved, and the construction period is shortened.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional view of the structure of the present invention.
Fig. 3 is a schematic cross-sectional view of the angle iron of the present invention.
Fig. 4 is a schematic cross-sectional view of a second template block in the present invention.
Figure 5 is a schematic view of the construction of the profile composite sheet of the present invention.
The reference signs are: the template comprises a first template block 1, a second template block 2, a third template block 3, plugs 4, angle steel 5, a connecting plate 6, a fixing plate 7, a lifting column 8, a profile composition plate 9, a threaded hole 10, a movable panel 11, a first fixing ring 12, a second fixing ring 13, an adjusting guide rail 14, a sliding block 15, an adjusting rod 16, a sealing strip 17, a longitudinal cavity 51 and a threaded part 81.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
Example 1
As shown in fig. 1, a novel building template assembling system for constructing a special-shaped member comprises: the template comprises a first template block 1, a second template block 2, a third template block 3, plugs 4, angle steel 5, a connecting plate 6, a fixing plate 7, a lifting column 8, a profile composition plate 9, a threaded hole 10, a movable panel 11, a first fixing ring 12, a second fixing ring 13, an adjusting guide rail 14, a sliding block 15, an adjusting rod 16, a sealing strip 17, a longitudinal cavity 51 and a threaded part 81.
The first template block is horizontally and fixedly installed through a supporting structure, the second template block is vertically installed on the first template block through angle steel, the cross section of the angle steel is L-shaped, and a longitudinal cavity with the cross section in the shape of a square or an I-shaped is arranged in the angle steel; the third template block is connected to the second template block through a connecting plate and bolts, and a plurality of plugs are arranged at the tail end of the first template block. The outer contour of the second template block can be changed according to design requirements, and the second template block comprises a lifting column with adjustable height, a contour combination plate with adjustable inclination angle and a sealing strip arranged on a gap of the contour combination plate. Specifically, the second template block includes: the section of the fixed plate is concave, a plurality of lifting columns capable of lifting and a profile combined plate arranged at the tops of the lifting columns are distributed on the fixed plate according to a preset array; a plurality of threaded holes are distributed in the sunken positions of the fixing plate according to a preset array, the lower parts of the lifting columns are provided with threaded parts meshed with the threaded holes, and the lifting columns are installed on the fixing plate through threaded connection; the lifting column is fixed by adjusting the position of the lifting column on the fixing plate and fixing the lifting column through a nut. The profile combination plate rotates by a preset angle by taking the top of the lifting column as a fulcrum. The profile composition board is formed by splicing a plurality of movable panels which are triangular, and comprises: fixed mounting is in the first solid fixed ring at lift capital portion, fixed mounting be in the solid fixed ring of second at lift capital portion, one end articulates a plurality of triangle-shaped's that are in first solid fixed ring top activity panels set up the regulation guide rail of activity panel bottom, suit are in adjust the slider on the guide rail, and one end articulates on the slider, the other end articulates adjust the pole on the solid fixed ring of second.
In order to facilitate understanding of the technical scheme of the flexible building template material, the preparation method and the application thereof, the assembling method thereof is briefly described: firstly, modeling a target concrete special-shaped member by using a computer, and generating height data of each lifting column and inclination angle data of a profile composition plate by computer modeling according to an external profile of the concrete special-shaped member; the height data of each lifting column is determined by adjusting the position of the lifting column on the fixing plate up and down and fixing the lifting column through nut fixation; the movable panel is forced to rotate by a preset angle by taking the top of the lifting column as a fulcrum through fixing by moving the sliding block and the fixing piece, and the inclination angle of each contour combined plate is determined; matching the outer profile of the profile composition sheet with the target concrete fixture; sealing strips are arranged on the gaps between the movable panels; the first template block is horizontally installed, the second template block is vertically installed through angle steel, a plurality of second template blocks and a plurality of third template blocks are installed through connecting plates and bolts according to design requirements to form a closed cavity, concrete slurry is poured into the cavity, and the template blocks are detached after concrete is solidified. The outer contour of the contour composition plate is matched with the target concrete fixing part by adjusting the height of the lifting column and the inclination angle of the contour composition plate, the sealing strips are arranged on the gaps between the movable panels, and the closed curved surface formed by the contour composition plate and the sealing strips is matched with other templates to form a curved inner cavity so as to produce concrete special-shaped components with different shapes.
Example 2
In the actual production process, the applicant found that the building formwork of example 1 had the following problems: 1. concrete leakage, which causes blockage of the adjusting mechanisms of the lifting column and the composition plate, requires regular technical cleaning of the adjusting equipment. 2. The plant template in the building template has the advantages of high cost and short service life because the plant templates such as bamboo and wood are easy to absorb moisture, mildew and rot, acid and alkali resistance, crack, warp and turn, shrinkage and low hardness. 3. The metal templates in the building templates have poor heat insulation performance, and the demolding is difficult and the insulation performance is poor due to icing in winter concrete construction.
However, the most effective of the existing heat insulation materials is the silica aerogel material, but the preparation process of the aerogel is complex and expensive, and the aerogel is not suitable for wide-range use. More importantly, the brittleness of the aerogel is difficult to form a complete closed curved surface in the cavity of the die system, and the airtightness is kept when the aerogel contacts with a hard concrete material; therefore, the effect during actual use is not ideal. In order to solve the brittleness of the silica aerogel and improve the practicability of the silica aerogel, after the applicant consults literature data and experiments, one layer or a plurality of layers of silica aerogel is uniformly coated on the surface of the fabric by adopting a coating method, and one layer or a plurality of layers of heat insulation films are formed on the surface of the fabric through adhesion. However, since the diaphragm film needs to be in direct contact with the concrete mortar for a long time, the thermal insulation film obtained by the coating method is easy to discolor under long-term friction and alkaline conditions.
According to the invention, the silica aerogel is dyed into the polyester fiber to provide a carrier for the silica aerogel, so that a light and soft heat-insulation composite material barrier is prepared, the heat-insulation performance in a building template is improved, the demoulding difficulty caused by concrete construction icing is avoided, and the use of concrete additives such as an antifreezing agent, an early strength agent, a retarder and the like in concrete can be saved. And then a layer of phenolic resin is added on the surface of the heat insulation composite material, so that the surface smoothness is improved, the composite material can be used as a bare concrete template, the plastering process after the template is removed can be omitted, the construction cost is greatly saved, and the construction period is shortened.
On the basis of the embodiment 1, a layer of flexible building template material is laid on the closed curved surface formed by the contour combination plate and the sealing strips. The preparation method of the flexible building template material comprises the following steps: step 1, soaping of polyester fibers: the soaping temperature is controlled to be 78-82 ℃, the soaping time is controlled to be 18-25 min, and the soaping agent is added into the soaping bath at any time and the adding amount is 0.55-0.65 kg/(L.h); step 2, aerogel preparation: mixing aerogel, adhesive and deionized water according to a preset mass ratio, adding a proper amount of FA620 dispersing agent, continuously stirring until the aerogel is dispersed in water, dispersing for 20min by using ultrasonic waves, and adding a proper amount of fatty alcohol-polyoxyethylene ether as a thickening agent to prepare aerogel dispersion liquid; step 3, dyeing of aerogel: mixing the polyester fibers washed by the soap according to a bath ratio of 1 (20-50) for dyeing, wherein the specific dyeing process comprises the following steps: heating the aerogel dispersion liquid to 75-80 ℃, adding polyester fibers, heating to 100-110 ℃ at the speed of 5 ℃/min, preserving heat for 30-40 min, and air cooling; and 4, low-temperature vacuum drying: taking out the dyed polyester fibers, placing the polyester fibers in a vacuum freeze dryer, and keeping the temperature for 3-5 hours under the conditions that the temperature is-40 to-35 ℃ and the vacuum degree is 2-5 kPa to remove residual solvent in the inorganic fibers; step 5, after finishing: impregnating the dyed polyester fibers with a phenolic resin solution modified by silicone oil, and curing at 200-250 ℃ to form a protective coating on the surface.
In the further implementation process, the aerogel is silicon dioxide aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity coefficient of the aerogel at the normal temperature is 0.015-0.021W/m.K.
In further implementation, the silica aerogel needs to be sensitized and activated before use. The sensitization treatment process comprises the following steps: soaking silica aerogel in 0.2-0.5 g/L palladium chloride and 0.2-0.5 g/L TiCl at normal temperature3Treating in hydrochloric acid solution for 15-25 min, and then washing with water. The activation treatment process comprises the following steps: soaking the sensitized silicon dioxide aerogel in 12-20 g/L beta-cyclodextrin solution and 50wt% ethanol solution at normal temperatureAdjusting the pH value to 9-11 in the activating solution, carrying out water bath aging treatment at the temperature of 30-70 ℃ for 20-30 min, and then washing with water.
Through above-mentioned technical scheme, on the one hand carries out sensitization and activation to silica aerogel, can get rid of the impurity on silica aerogel surface, and on the other hand carries out sensitization and activation silica's surface forms the one deck cohesion and is good, and the activation film that the activation ability is strong can improve silica aerogel and polyester fiber's combining ability, improves silica aerogel's dye uptake.
In the further implementation process, the preparation process of the silicone oil modified phenolic resin solution comprises the following steps: firstly, respectively mixing and stirring the silane coupling agent KH-570, the mineral oil, the silicone oil, the flexibilizer and the softened water uniformly, then adding the ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing into an aqueous solution, and continuously stirring. The silicone oil is a linear polysiloxane finished product which keeps a liquid state at room temperature, and the structural formula of the silicone oil is as follows:
wherein R is alkyl chain and aromatic hydrocarbon; r' is alkyl chain, aromatic hydrocarbon, hydrogen, carbon-based functional group or polyether chain; x is alkyl chain, aromatic hydrocarbon, alkoxy, acetoxyl, chlorine, hydrogen, carbon-based functional group or polyether chain; n, m =0, 1, 2, 3 …. The silicone oil is at least one of methyl silicone oil, hydroxyl silicone oil, amino silicone oil and watt silicone oil for those skilled in the art, but is not limited thereto.
Through the technical scheme, the modified silicone oil not only ensures the advantages of the original dimethyl silicone oil, but also endows the modified silicone oil with characteristics which the modified silicone oil does not have, such as compatibility and reactivity with phenolic resin, enhances the solubility of the modified silicone oil in a solvent, and endows the modified silicone oil with interfacial activity, lubricity, antistatic property and adsorbability, so that the modified silicone oil can be matched with the phenolic resin to endow fibers with excellent high and low temperature, weather resistance, impact resistance, flexibility, wear resistance, hydrophobicity and mold release property. Meanwhile, a thin smooth film is formed on the surface of the polyester fabric, so that secondary separation caused by friction between the fabrics or long-term contact with alkaline concrete is reduced, and the decoloration of the heat insulation film is avoided.
In order to facilitate understanding of the technical scheme of the application of the flexible building template material, the assembling method is briefly described as follows: firstly, modeling a target concrete special-shaped member by using a computer, and generating height data of each lifting column and inclination angle data of a profile composition plate by computer modeling according to an external profile of the concrete special-shaped member; the height data of each lifting column is determined by adjusting the position of the lifting column on the fixing plate up and down and fixing the lifting column through nut fixation; the movable panel is forced to rotate by a preset angle by taking the top of the lifting column as a fulcrum through fixing by moving the sliding block and the fixing piece, and the inclination angle of each contour combined plate is determined; matching the outer profile of the profile composition sheet with the target concrete fixture; sealing strips are arranged on gaps between the movable panels, and a layer of resin reinforcing material is laid and fixed on a closed curved surface formed by the profile combination plate and the sealing strips, the first template block and the third template block; the first template block is horizontally installed, the second template block is vertically installed through angle steel, a plurality of second template blocks and a plurality of third template blocks are installed through connecting plates and bolts according to design requirements to form a closed cavity, concrete slurry is poured into the cavity, and the template blocks are detached after concrete is solidified. By paving and fixing a layer of resin reinforcing material on the first template block, the first template block and the third template block, on one hand, the leakage amount of concrete is reduced, and an adjusting mechanism in the profile composition plate is protected; on the other hand, the heat insulation performance in the building template is improved, and the difficulty in demoulding caused by icing in concrete construction is avoided.
Example 21
A preparation method of a flexible building template material comprises the following steps:
The aerogel is silicon dioxide aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity coefficient of the aerogel at normal temperature is 0.018W/m.K.
the adhesive is adhesive DM-5125 produced by Shanghai Demei chemical Co., Ltd.
and 5, low-temperature vacuum drying: taking out the dyed polyester fiber, placing the polyester fiber in a vacuum freeze dryer, and keeping the temperature for 3 hours under the conditions that the temperature is minus 40 ℃ and the vacuum degree is 2kPa to remove residual solvent in the inorganic fiber;
The preparation process of the silicone oil modified phenolic resin solution comprises the following steps: firstly, respectively mixing a silane coupling agent KH-570, mineral oil, silicone oil, a flexibilizer and softened water according to a ratio of 5:1:2: 1: 42, then adding 0.5 part by mass of ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing an aqueous solution, and continuously stirring.
Example 22
A preparation method of a flexible building template material comprises the following steps:
The aerogel is silicon dioxide aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity coefficient of the aerogel at normal temperature is 0.015W/m.K.
the adhesive is adhesive DM-5125 produced by Shanghai Demei chemical Co., Ltd.
and 5, low-temperature vacuum drying: taking out the dyed polyester fibers, placing the polyester fibers in a vacuum freeze dryer, and keeping the temperature for 3-5 hours under the conditions that the temperature is-40 to-35 ℃ and the vacuum degree is 2-5 kPa to remove residual solvent in the inorganic fibers;
The preparation process of the silicone oil modified phenolic resin solution comprises the following steps: firstly, respectively mixing and stirring the silane coupling agent KH-570, the mineral oil, the silicone oil, the flexibilizer and the softened water uniformly, then adding the ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing into an aqueous solution, and continuously stirring.
Example 23
A preparation method of a flexible building template material comprises the following steps:
The aerogel is silicon dioxide aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity coefficient of the aerogel at normal temperature is 0.021W/m.K.
the adhesive is adhesive DM-5125 produced by Shanghai Demei chemical Co., Ltd.
and 5, low-temperature vacuum drying: taking out the dyed polyester fiber, placing the polyester fiber in a vacuum freeze dryer, and keeping the temperature for 3 hours under the conditions that the temperature is minus 40 ℃ and the vacuum degree is 2kPa to remove residual solvent in the inorganic fiber;
The preparation process of the silicone oil modified phenolic resin solution comprises the following steps: firstly, respectively mixing and stirring the silane coupling agent KH-570, the mineral oil, the silicone oil, the flexibilizer and the softened water uniformly, then adding the ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing into an aqueous solution, and continuously stirring.
Example 24
Based on example 21, there was no step 2, and the aerogel was not pretreated. The rest of the procedure was the same as in example 21.
Example 25
On the basis of example 21, the low-temperature vacuum drying in step 4 was replaced by: and taking out the dyed polyester fiber, placing the polyester fiber in a vacuum oven, and drying the polyester fiber at the temperature of 105 ℃ until the residual deionized water in the solution is removed. The rest of the procedure was the same as in example 21.
Example 26
On the basis of the embodiment 21, the steps 4-5 are replaced by: and (3) paving a felt woven by polyester fibers, uniformly spraying a dioxygen sliding rail aerogel solution on the felt, placing the felt in a vacuum oven, and drying at 103 ℃ until residual deionized water in the solution is removed to obtain the heat-insulating aerogel felt. . The rest of the procedure was the same as in example 21.
Example 27
On the basis of example 21, there was no step 6, and the rest of the steps were the same as in example 21.
The rest of the procedure was the same as in example 1.
In order to test the flexibility of the flexible building template material prepared by the method and the specific performance of the heat insulation effect, the flexible building template material is recycled for 10 times in concrete mortar. The specific experimental data are as follows:
the comparative experimental data show that: the heat insulation composite materials obtained in the embodiments 1 to 3 have excellent heat insulation effect, and can reduce the difficulty in demoulding caused by concrete construction icing; the wear-resistant rubber has excellent wear-resistant effect and can be repeatedly utilized; meanwhile, the concrete additive has excellent smoothness, and can save concrete additives such as an antifreezing agent, an early strength agent, a retarder and the like in concrete.
It is to be noted that the respective specific technical features described in the above-described embodiments may be combined in any suitable manner without contradiction. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. The preparation method of the flexible building template material is characterized by comprising the following steps:
step 1, soaping of polyester fibers
The soaping temperature is controlled to be 78-82 ℃, the soaping time is controlled to be 18-25 min, and the soaping agent is added into the soaping bath at any time and the adding amount is 0.55-0.65 kg/(L.h);
step 2, preparing aerogel
Mixing aerogel, adhesive and deionized water according to a preset mass ratio, adding a proper amount of FA620 dispersing agent, continuously stirring until the aerogel is dispersed in water, dispersing for 20min by using ultrasonic waves, and adding a proper amount of fatty alcohol-polyoxyethylene ether as a thickening agent to prepare aerogel dispersion liquid;
step 3, dyeing of aerogel
Mixing the polyester fibers washed by the soap according to a bath ratio of 1 (20-50) for dyeing, wherein the specific dyeing process comprises the following steps: heating the aerogel dispersion liquid to 75-80 ℃, adding polyester fibers, heating to 100-110 ℃ at the speed of 5 ℃/min, preserving heat for 30-40 min, and air cooling;
step 4, low-temperature vacuum drying
Taking out the dyed polyester fibers, placing the polyester fibers in a vacuum freeze dryer, and keeping the temperature for 3-5 hours under the conditions that the temperature is-40 to-35 ℃ and the vacuum degree is 2-5 kPa to remove residual solvent in the inorganic fibers;
step 5, after finishing
Impregnating the dyed polyester fibers with a phenolic resin solution modified by silicone oil, and curing at 200-250 ℃ to form a protective coating on the surface.
2. The preparation method of the flexible building template material according to claim 1, wherein the aerogel is silica aerogel prepared by an acid-base two-step sol-gel method, and the thermal conductivity of the aerogel at normal temperature is 0.015-0.021W/m-K.
3. The method for preparing a flexible building template material according to claim 2, wherein the silica aerogel is required to be subjected to sensitization treatment and activation treatment before use.
4. The method for preparing the flexible building template material according to claim 3, wherein the sensitization process comprises the following steps: the sensitization treatment process comprises the following steps: soaking silica aerogel in 0.2-0.5 g/L palladium chloride and 0.2-0.5 g/L TiCl at normal temperature3Treating in hydrochloric acid solution for 15-25 min, and then washing with water.
5. The method for preparing a flexible building template material according to claim 2, wherein the activation treatment process comprises: the activation treatment process comprises the following steps: soaking the sensitized silicon dioxide aerogel in an activation solution consisting of 12-20 g/L beta-cyclodextrin solution and 50wt% ethanol solution at normal temperature, adjusting the pH to 9-11, carrying out water bath aging treatment at 30-70 ℃ for 20-30 min, and then washing with water.
6. The preparation method of the flexible building template material according to claim 1, wherein the preparation process of the silicone oil modified phenolic resin solution is as follows: firstly, respectively mixing and stirring the silane coupling agent KH-570, the mineral oil, the silicone oil, the flexibilizer and the softened water uniformly, then adding the ammonium sulfate, stirring to completely dissolve the ammonium sulfate, preparing into an aqueous solution, and continuously stirring.
7. The method for preparing a flexible building template material according to claim 6, wherein the silicone oil is a linear polysiloxane finished product which is kept in a liquid state at room temperature, and the structural formula of the silicone oil is as follows:
wherein R is alkyl chain and aromatic hydrocarbon; r' is alkyl chain, aromatic hydrocarbon, hydrogen, carbon-based functional group or polyether chain; x is alkyl chain, aromatic hydrocarbon, alkoxy, acetoxyl, chlorine, hydrogen, carbon-based functional group or polyether chain; n, m =0, 1, 2, 3 ….
8. The method for preparing the flexible building template material according to claim 7, wherein the silicone oil is methyl silicone oil, hydroxyl silicone oil, amino silicone oil or Wake silicone oil.
9. An insulating material having high flexibility obtained based on the method for preparing a flexible building formwork material according to any one of claims 1 to 8.
10. The application of the flexible building template material based on claim 9 as a building template heat insulation material is characterized in that the use method comprises the following steps:
step 1, firstly, modeling a target concrete special-shaped member by using a computer, and according to the external profile of the concrete special-shaped member, generating height data of each lifting column and inclination angle data of a profile combined plate by computer modeling;
step 2, adjusting the positions of the lifting columns on the fixing plate up and down, fixing the lifting columns through nut fixation, and determining height data of each lifting column; the movable panel is forced to rotate by a preset angle by taking the top of the lifting column as a fulcrum through fixing by moving the sliding block and the fixing piece, and the inclination angle of each contour combined plate is determined; matching the outer profile of the profile composition sheet with the target concrete fixture;
step 3, arranging sealing strips on gaps between the movable panels, and paving and fixing a layer of the flexible building template material of claim 8 on the closed curved surface formed by the profile combination plate and the sealing strips, the first template block and the third template block;
and 4, horizontally installing the first template block, vertically installing the second template block through angle steel, installing a plurality of second template blocks and third template blocks through connecting plates and bolts according to design requirements to form a closed cavity, finally pouring concrete slurry into the cavity, and removing the template blocks after the concrete is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980235.7A CN112301769A (en) | 2020-09-17 | 2020-09-17 | Flexible building template material, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980235.7A CN112301769A (en) | 2020-09-17 | 2020-09-17 | Flexible building template material, preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112301769A true CN112301769A (en) | 2021-02-02 |
Family
ID=74483103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010980235.7A Pending CN112301769A (en) | 2020-09-17 | 2020-09-17 | Flexible building template material, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112301769A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973752A (en) * | 2010-10-21 | 2011-02-16 | 厦门大学 | Glass fiber reinforced silicon dioxide aerogel composite material and preparation method thereof |
| CN102002689A (en) * | 2010-10-09 | 2011-04-06 | 广东工业大学 | Method for preparing silica and alumina sol type activator used for activating nonmetal materials |
| CN103572503A (en) * | 2012-07-24 | 2014-02-12 | 陈照峰 | Hydrophobic type glass wool blanket and adhesive proportion thereof |
| CN205531334U (en) * | 2016-01-22 | 2016-08-31 | 南京施瓦乐新材料科技有限公司 | Novel system of setting up is assembled in building templates system |
| CN106747576A (en) * | 2016-11-22 | 2017-05-31 | 成都新柯力化工科技有限公司 | A kind of method that normal pressure homogenizing low cost prepares aeroge for building |
| CN107604634A (en) * | 2017-08-29 | 2018-01-19 | 湖北硅金凝节能减排科技有限公司 | A kind of re-compounded aeroge fibrofelt and preparation method thereof |
| CN108689678A (en) * | 2017-04-10 | 2018-10-23 | 航天海鹰(镇江)特种材料有限公司 | A kind of fibre-reinforced aerogel felt and preparation method thereof that surface is adhered to without aeroge bulky grain |
| CN210767815U (en) * | 2019-08-01 | 2020-06-16 | 东南大学建筑设计研究院有限公司 | Space curved surface concrete formwork capable of being formed at will |
-
2020
- 2020-09-17 CN CN202010980235.7A patent/CN112301769A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002689A (en) * | 2010-10-09 | 2011-04-06 | 广东工业大学 | Method for preparing silica and alumina sol type activator used for activating nonmetal materials |
| CN101973752A (en) * | 2010-10-21 | 2011-02-16 | 厦门大学 | Glass fiber reinforced silicon dioxide aerogel composite material and preparation method thereof |
| CN103572503A (en) * | 2012-07-24 | 2014-02-12 | 陈照峰 | Hydrophobic type glass wool blanket and adhesive proportion thereof |
| CN205531334U (en) * | 2016-01-22 | 2016-08-31 | 南京施瓦乐新材料科技有限公司 | Novel system of setting up is assembled in building templates system |
| CN106747576A (en) * | 2016-11-22 | 2017-05-31 | 成都新柯力化工科技有限公司 | A kind of method that normal pressure homogenizing low cost prepares aeroge for building |
| CN108689678A (en) * | 2017-04-10 | 2018-10-23 | 航天海鹰(镇江)特种材料有限公司 | A kind of fibre-reinforced aerogel felt and preparation method thereof that surface is adhered to without aeroge bulky grain |
| CN107604634A (en) * | 2017-08-29 | 2018-01-19 | 湖北硅金凝节能减排科技有限公司 | A kind of re-compounded aeroge fibrofelt and preparation method thereof |
| CN210767815U (en) * | 2019-08-01 | 2020-06-16 | 东南大学建筑设计研究院有限公司 | Space curved surface concrete formwork capable of being formed at will |
Non-Patent Citations (2)
| Title |
|---|
| 周俊伶 等: "聚酯纤维增韧二氧化硅气凝胶的制备及其性能", 《功能材料》 * |
| 张林 等: "β-环糊精-钯催化膜的制备及其在纺织品化学镀中的应用", 《印染助剂》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112282349B (en) | Novel building template assembly system for constructing special-shaped component and assembly method thereof | |
| CN108521016A (en) | A kind of D shipborne radar cover and its manufacturing method | |
| CN105544851A (en) | Prefabricated sandwich thermal-insulation laminated wallboard and manufacturing method | |
| CN111877577A (en) | Heat insulation board and manufacturing method thereof | |
| CN105711208A (en) | Polyurethane-modified inorganic material heat insulation and decoration integrated board and production method thereof | |
| CN1916306A (en) | Outer heat preservation system of composite polyphenylene plate of hard bubble polyurethane for pouring in site, and construction technique | |
| CN110005104A (en) | A kind of fabricated heat preservation decoration integrative laminated floor slab and its construction method | |
| CN100999918B (en) | Manufacture method of pouring polyurethane heat insulating wall | |
| CN111980311A (en) | Extruded sheet foam concrete waterproof and energy-saving integrated roof system for severe cold area and construction method thereof | |
| CN101691796B (en) | Compound fireproof thermal insulation wall board and manufacturing and installing method thereof | |
| CN112301769A (en) | Flexible building template material, preparation method and application thereof | |
| CN204282809U (en) | Composite shuttering cast-in-situ concrete self-insulation system | |
| CN111718162A (en) | Fiber-reinforced foamed cement composite insulation board and preparation method thereof | |
| CN2756726Y (en) | Cast-in-situ polyurethane hard foam composite cement plate heat insulation wall | |
| CN213806285U (en) | Heat preservation decoration integrated plate, heat preservation decoration external wall plate and connection joint of external wall plate | |
| CN205134580U (en) | Integrative exterior sheathing that keeps warm is exempted from to tear open by low internal force | |
| CN112726855B (en) | Efficient heat insulation board and preparation method thereof | |
| CN112921798A (en) | Construction method of bridge expansion joint | |
| CN106739283A (en) | A kind of light thermal insulation composite board | |
| CN209568556U (en) | A kind of fireproofed polyurethane composite insulation boards | |
| CN111733993A (en) | Insulation board with color decoration effect and manufacturing method thereof | |
| CN111535464A (en) | Composite heat-insulation board and manufacturing method thereof | |
| CN111593999A (en) | Novel three-layer composite bonding type energy-saving door and window profile and manufacturing process | |
| CN216195589U (en) | Insulation board with supporting structure | |
| CN109651703A (en) | A kind of fire-retardant hollow plastic building template of superficial layer foaming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |
|
| RJ01 | Rejection of invention patent application after publication |