CN113334868A - Multilayer aerogel composite material and preparation method thereof - Google Patents
Multilayer aerogel composite material and preparation method thereof Download PDFInfo
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- CN113334868A CN113334868A CN202110642277.4A CN202110642277A CN113334868A CN 113334868 A CN113334868 A CN 113334868A CN 202110642277 A CN202110642277 A CN 202110642277A CN 113334868 A CN113334868 A CN 113334868A
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- aerogel
- binder
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- coiled material
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- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
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- 238000000576 coating method Methods 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 12
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
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- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 3
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- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
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- 239000008279 sol Substances 0.000 claims description 3
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- 238000010276 construction Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 19
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention provides a multilayer aerogel composite material and a preparation method thereof, which relate to the field of aerogels and comprise the following steps: the method comprises the following steps: placing the aerogel coiled material in an unreeling device, enabling the unreeled aerogel coiled material to pass through a coating device, wherein a binder is arranged in the coating device, and then coating the binder on one surface or two surfaces of the aerogel coiled material after passing through the coating device; step two: winding the aerogel coiled material coated with the binder on a plurality of layers of winding cores with preset diameters, and winding after the binder is cured to obtain the required multilayer composite aerogel pipe shell; step three: and D, cutting one axial side of the aerogel pipe shell obtained in the step two. This application is through prefabricated multilayer aerogel composite tube shell or panel of mill, and the site operation becomes simple high-efficient, construction quality also guarantees more easily, and the cost of labor also naturally reduces by a wide margin, and present aerogel material of solution that can be fine faces foretell problem in the work progress.
Description
Technical Field
The invention relates to the technical field of aerogel, in particular to a multilayer aerogel composite material and a preparation method thereof.
Background
Aerogel materials are limited by the current production process, and the product thickness is not too thick, and generally 10mm is the maximum thickness. However, in the practical use process of engineering projects, a higher thickness is often required to meet the requirement of thermal insulation, and in the practical operation, the required insulation thickness is generally met by a multilayer winding and stacking mode.
Because the production process of the aerogel material involves complicated links such as solvent replacement, modification, drying and the like, the production efficiency of products with the thickness of more than 10mm is very low, and the aerogel material is not suitable for directly producing over-thick products. Currently, aerogel materials are generally constructed on site in multiple layers, and the construction process is as follows: (1) should tie up the layer by layer and lay when double-deck and the adiabatic felt of multilayer aerogel construct, the thickness of each layer should be close, and the adiabatic felt of same layer aerogel carries out the fissure of displacement processing, adopts the pressure seam mode to lay between the adiabatic felt of different layers aerogel. The lap seam location must not be disposed within 45 of the vertical centerline of the pipe. (2) The required length of each layer is determined by direct wrapping measurement. The overlapping size of the aerogel thermal insulation material along the pipeline direction is 10-20 mm. (3) After the aerogel heat insulation felts are laid, the layers are fixed by galvanized iron wires (phi 0.5mm or phi 1mm) or high-temperature adhesive tapes respectively. (4) Tightly wrapping the aerogel heat-insulating felt by the fiberglass cloth in a spiral winding manner, fixing the aerogel heat-insulating felt on a pipeline, wherein the winding direction is consistent with the overlapping direction of the materials, and the bonding is flat, and the overlapping dimension of the fiberglass cloth is 1/2 of the width. The glass fiber cloth with the width of 10-30 cm is recommended. (5) Each section of aerogel insulation blanket laid also needs to be lap-jointed along the pipeline direction. (6) And laying different layers of aerogel heat-insulating felts in a seam pressing mode, aligning the middle part of the next layer of material with the circumferential seam of the previous layer of material, and finally covering the additional metal outer protective layer.
Firstly, the construction process becomes complicated, the construction efficiency is low, and the construction quality is not easy to control; and secondly, the labor cost is multiplied, the popularization and application cost of the aerogel material is further increased, and the mass popularization of the aerogel material is not facilitated.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multilayer aerogel composite material and a preparation method thereof, and solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a multilayer aerogel composite and a preparation method thereof, wherein the preparation of the multilayer aerogel composite tube shell comprises the following steps:
the method comprises the following steps: placing the aerogel coiled material in an unreeling device, enabling the unreeled aerogel coiled material to pass through a coating device, wherein a binder is arranged in the coating device, and then coating the binder on one surface or two surfaces of the aerogel coiled material after passing through the coating device;
step two: winding the aerogel coiled material coated with the binder on a plurality of layers of winding cores with preset diameters, and winding after the binder is cured to obtain the required multilayer composite aerogel pipe shell;
step three: and D, cutting one axial side of the aerogel pipe shell obtained in the step two.
The preparation method of the multilayer aerogel composite material is characterized by preparing a multilayer aerogel plate, and comprises the following steps:
the method comprises the following steps: placing the aerogel coiled material in an unreeling device, enabling the unreeled aerogel coiled material to pass through a coating device, wherein a binder is arranged in the coating device, and then coating the binder on one surface or two surfaces of the aerogel coiled material after passing through the coating device;
step two: and (3) superposing a plurality of layers of aerogel coiled materials coated with the binder, and cutting the aerogel coiled materials according to the required size after the binder is cured to obtain the required multilayer composite aerogel board.
Preferably, the aerogel is one or more of a silica aerogel, an alumina aerogel, a zirconia aerogel, a titania aerogel and an iron oxide aerogel reinforced by fibers.
Preferably, the aerogel comprises one or both of a hydrophilic aerogel and a hydrophobic aerogel.
Preferably, the binder is an inorganic binder and comprises one or more of cement, gypsum, silica sol, alumina sol, zirconium sol, titanium sol, sodium silicate, potassium silicate, ethyl silicate, aluminum phosphate and aluminum dihydrogen phosphate.
Preferably, the adhesive is an organic adhesive, and comprises one or more of acrylic resin, epoxy resin, alkyd resin, amino resin, polyester resin, phenolic resin, polyurethane resin, organic silicon resin and organic fluorine resin.
Preferably, the binder contains one or more of a filler, a wetting agent, a dispersing agent, a defoaming agent, a thickening agent, a curing agent, a flame retardant and a waterproof agent.
Preferably, the outer layer of the winding core is coated with a non-stick coating or covered with a plastic film.
(III) advantageous effects
The invention provides a multilayer aerogel composite material and a preparation method thereof. The method has the following beneficial effects:
1. this multilayer aerogel combined material and preparation method thereof, this application is through the compound tube shell of the aerogel of factory prefabrication multilayer or panel, and the site operation becomes simple high-efficient, construction quality also guarantees more easily, and the cost of labor also naturally reduces by a wide margin, and solution aerogel material that can be fine faces foretell problem in the work progress at present.
Drawings
FIG. 1 is a schematic view of the winding process of the present invention;
FIG. 2 is a cut-away view of an aerogel envelope of the present invention.
In the figure: 1 aerogel coiled material, 2 unwinding device, 3 roll up core, 4 coating devices, 5 aerogel pipe shells.
Detailed Description
The embodiment of the invention provides a multilayer aerogel composite material and a preparation method thereof, and as shown in figures 1-2, the preparation of a multilayer aerogel composite tube shell comprises the following steps:
the method comprises the following steps: unreeling device 2 is arranged in with aerogel coiled material 1, and the binder is equipped with in the aerogel coiled material 1 that unreels through a coating device 4 in the coating device 4, and coating device 4 has two, spouts glue to the upper and lower two sides of aerogel coiled material 1 respectively. Then one side or two sides of the aerogel coiled material 1 are coated with the adhesive after passing through the coating device 4;
step two: the aerogel coiled material 1 coated with the adhesive is wound on a winding core 3 with a preset diameter for a plurality of layers, and the diameter of the winding core 3 is a prefabricated mold winding core according to the diameter of an actual pipeline. The outer layer of the winding core 3 is coated with a non-stick coating or covered by a plastic film, so that the winding core 3 can be conveniently drawn out from the aerogel pipe shell 5 for reuse. After the binder is cured, rolling to obtain the required multilayer composite aerogel pipe shell 5;
step three: as shown in fig. 2, one axial side of aerogel shell 5 obtained in step two is cut. So as to be convenient for construction to be coated on the pipeline.
Preparing a multilayer aerogel panel comprising the steps of:
the method comprises the following steps: placing an aerogel coiled material 1 in an unreeling device 2, enabling the unreeled aerogel coiled material 1 to pass through a coating device 4, wherein a binder is arranged in the coating device 4, and then coating the binder on one surface or two surfaces of the aerogel coiled material 1 after passing through the coating device 4;
step two: and (3) overlapping a plurality of layers of the aerogel coiled material 1 coated with the binder, and cutting the binder into required sizes after the binder is cured to obtain the required multilayer composite aerogel board.
The aerogel is one or more of fiber-reinforced silica aerogel, alumina aerogel, zirconia aerogel, titania aerogel and iron oxide aerogel.
The aerogel comprises one or two of hydrophilic aerogel and hydrophobic aerogel.
The binder is an inorganic binder and comprises one or more of cement, gypsum, silica sol, alumina sol, zirconium sol, titanium sol, sodium silicate, potassium silicate, ethyl silicate, aluminum phosphate and aluminum dihydrogen phosphate.
The adhesive is organic adhesive, which comprises one or more of acrylic resin, epoxy resin, alkyd resin, amino resin, polyester resin, phenolic resin, polyurethane resin, organic silicon resin and organic fluorine resin.
The binder contains one or more of filler, wetting agent, dispersing agent, defoaming agent, thickening agent, curing agent, flame retardant and waterproof agent.
Example 1:
the glass fiber needled felt reinforced silica aerogel coiled material 1 with the thickness of 10mm and the width of 1500mm is introduced into a coating device 4, and a pre-configured inorganic binder is arranged in a groove of the coating device 4. The components of the inorganic binder are as follows: 200kg of water glass with the modulus of 3, 300kg of each of silicon powder and mica powder filler, 25kg of sodium fluosilicate curing agent, 200g of organic silicon ether wetting agent, 100g of polyether dispersant and 300g of methyl cellulose thickener. And coating the binder on the aerogel coiled material 1, winding 5 layers on a winding core 3 with the outer diameter of 325mm and the surface coated with a plastic film, cutting off, curing, and cutting one side along the axial direction to obtain the multilayer composite aerogel pipe shell 5 with the inner diameter of 325mm and the thickness of 50 mm.
Example 2:
the glass fiber needled felt reinforced alumina aerogel coiled material 1 with the thickness of 10mm and the width of 1500mm is introduced into a coating device 4, and a pre-configured organic binder is arranged in a groove of the coating device 4. The components of the organic binder are as follows: 200kg of acrylic resin, 400kg of glass bead filler, 100kg of aluminum hydroxide flame retardant, 100g of organic silicon defoamer and 300g of methyl cellulose thickener. And coating the binder on the aerogel coiled material 1, then rolling 3 layers on a rolling core 3 with the outer diameter of 114mm and the surface coated with a plastic film, cutting off, and after curing, cutting one side along the axial direction to obtain the multilayer composite aerogel pipe shell 5 with the inner diameter of 114mm and the thickness of 30 mm.
Example 3:
the glass fiber needled felt reinforced alumina aerogel coiled material 1 with the thickness of 10mm and the width of 1500mm is introduced into a coating device 4, and a pre-configured inorganic binder is arranged in a groove of the coating device 4. The components of the inorganic binder are as follows: 50kg of cement, 200kg of fine sand filler, 15kg of water, 200g of organic silicon ether wetting agent and 100g of methyl cellulose thickener. And 8 layers of the binder are coated on the aerogel coiled material 1, then the aerogel coiled material is cut, stacked and compacted, and the multilayer composite aerogel plate with the thickness of 80mm, the length of 1500mm and the width of 800mm is obtained after natural curing for 1 day.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The preparation method of the multilayer aerogel composite material is characterized in that the preparation of the multilayer aerogel composite tube shell comprises the following steps:
the method comprises the following steps: placing the aerogel coiled material in an unreeling device, enabling the unreeled aerogel coiled material to pass through a coating device, wherein a binder is arranged in the coating device, and then coating the binder on one surface or two surfaces of the aerogel coiled material after passing through the coating device;
step two: winding the aerogel coiled material coated with the binder on a plurality of layers of winding cores with preset diameters, and winding after the binder is cured to obtain the required multilayer composite aerogel pipe shell;
step three: and D, cutting one axial side of the aerogel pipe shell obtained in the step two.
2. The preparation method of the multilayer aerogel composite material is characterized by preparing a multilayer aerogel plate, and comprises the following steps:
the method comprises the following steps: placing the aerogel coiled material in an unreeling device, enabling the unreeled aerogel coiled material to pass through a coating device, wherein a binder is arranged in the coating device, and then coating the binder on one surface or two surfaces of the aerogel coiled material after passing through the coating device;
step two: and (3) superposing a plurality of layers of aerogel coiled materials coated with the binder, and cutting the aerogel coiled materials according to the required size after the binder is cured to obtain the required multilayer composite aerogel board.
3. A multilayer aerogel composite and method of making the same, as claimed in claims 1 or 2, wherein: the aerogel is one or more of fiber-reinforced silica aerogel, alumina aerogel, zirconia aerogel, titania aerogel and iron oxide aerogel.
4. A multilayer aerogel composite and method of making the same, as claimed in claims 1 or 2, wherein: the aerogel comprises one or two of hydrophilic aerogel and hydrophobic aerogel.
5. A multilayer aerogel composite and method of making the same, as claimed in claims 1 or 2, wherein: the binder is an inorganic binder and comprises one or more of cement, gypsum, silica sol, alumina sol, zirconium sol, titanium sol, sodium silicate, potassium silicate, ethyl silicate, aluminum phosphate and aluminum dihydrogen phosphate.
6. A multilayer aerogel composite and method of making the same, as claimed in claims 1 or 2, wherein: the adhesive is an organic adhesive and comprises one or more of acrylic resin, epoxy resin, alkyd resin, amino resin, polyester resin, phenolic resin, polyurethane resin, organic silicon resin and organic fluororesin.
7. A multilayer aerogel composite and method of making the same, as claimed in claims 1 or 2, wherein: the binder contains one or more of filler, wetting agent, dispersing agent, defoaming agent, thickening agent, curing agent, flame retardant and waterproof agent.
8. A multilayer aerogel composite and method of making the same, as claimed in claim 1, wherein: the outer layer of the winding core is coated with a non-stick coating or covered by a plastic film.
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| CN102264233A (en) * | 2008-12-23 | 2011-11-30 | 库纳设备制造有限公司 | Multilayer, tube-shaped food film |
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| CN110228267A (en) * | 2019-06-18 | 2019-09-13 | 重庆鑫仕达包装设备有限公司 | A kind of function combined compounding machine and its application method |
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| CN102264233A (en) * | 2008-12-23 | 2011-11-30 | 库纳设备制造有限公司 | Multilayer, tube-shaped food film |
| CN108468208A (en) * | 2018-04-01 | 2018-08-31 | 中鸿纳米纤维技术丹阳有限公司 | A kind of silica aerogel insulation quilt of environment-friendly and green |
| CN108673997A (en) * | 2018-05-29 | 2018-10-19 | 安徽中航名坤新材料科技有限公司 | It is a kind of to prepare large scale, the preparation method of high thickness aerogel plate |
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