CN104210211A - High-temperature-resisting gel composite heat-preservation material - Google Patents
High-temperature-resisting gel composite heat-preservation material Download PDFInfo
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- CN104210211A CN104210211A CN201410509535.1A CN201410509535A CN104210211A CN 104210211 A CN104210211 A CN 104210211A CN 201410509535 A CN201410509535 A CN 201410509535A CN 104210211 A CN104210211 A CN 104210211A
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Abstract
The invention discloses a high-temperature-resisting gel composite heat-preservation material. The high-temperature-resisting gel composite heat-preservation material is composed of an inner inorganic fiber layer, an outer inorganic fiber layer and a nano core layer, wherein the nano core layer is composed of a protective layer and a nano material layer formed by one to three inorganic fiber cloth aerogel-coated material layers, and connection of all layers of the nano core layer and connection between the nano core layer and the inner inorganic fiber layer and the outer inorganic fiber layer are achieved by adopting a high-temperature bonding agent or a sewing or combining method. The high-temperature-resisting gel composite heat-preservation material is simple in process and has the advantages of being high-temperature-resisting, good in heat-preservation performance and stability and the like.
Description
Technical field
The present invention relates to a kind of high temperature resistant aeroge compound insulating material, this material has high temperature resistant, good heat insulating, the advantages such as good stability, belongs to industrial heat preservation field of material technology.
Background technology
Material conventional in current industrial heat preservation field mainly contains the aerogel blanket etc. of the silicate fiber class insulation materials such as organic insulation material, alumina silicate fibre such as polyurethane and up-to-date rise.They in use have inevitable defect separately.
Organic insulation material burning grade generally can not more than B1 level, although this kind of material thermal conductivity factor lower (general between 0.027-0.050w/ (m.k) under normal temperature), its serviceability temperature more than 120 DEG C, comparatively should not be applicable to prepressing reserving works.But at industrial circle, particularly the general running temperature of chemical field is all higher than this temperature, and this just greatly limit the scope of application of organic-based material.
Silicates fibrous material, because it is inorganic material composition, burning grade is A level, can Long-Time Service under the hot environment more than 800 DEG C.But its thermal conductivity factor of silicates fibrous material is general higher, general at 0.050-0.080 w/ (m.k) under normal temperature, higher under high temperature.Heat insulation effect is very undesirable.
Aerogel blanket class material is a kind of new material risen recently, and it is that nano-hole aerogel material immerses inorganic fibers gap under collosol state, a kind of compound insulating material be then prepared from after drying process.The thermal conductivity factor of this material is very low, generally in 0.020 w/ (m.k) left and right under normal temperature, but it has several obvious defect: one is, be limited by the restriction of current aeroge and inorfil complex technique, the inorganic fibers adopted is generally glass fibre, and this just determines its serviceability temperature generally no more than 660 DEG C; Two are, the intensity of aerogel material own is very low, very easily broken and be scattered out from inorfil gap and cause heat-insulating property to lose, or the aerogel material gathering of fragmentation causes aerogel blanket heat-insulating property extremely unbalanced; Three are, aerogel blanket complex manufacturing, and efficiency is very low, cause cost higher, and the market price of current aerogel blanket is generally the 10-15 of alumina silicate insulation blanket doubly.
Summary of the invention
The object of the invention is to for solution above-mentioned deficiency of the prior art, while continuation introducing nanoporous aerogel material keeps outstanding heat-insulating property, adopt the complex technique scheme of innovation, thus a kind of high temperature resistant aeroge compound insulating material is provided.
Above-mentioned purpose, the present invention have employed following technical scheme and realizes:
The invention provides a kind of high temperature resistant aeroge compound insulating material, described material is formed by interior inorganic fibre mat, nanometer sandwich layer, outer inorganic fibre mat stack combinations successively.
Interior inorganic fibre mat and outer inorganic fibre mat are the one or any several combination in aluminosilicate-type fibrous material, magnesium silicate type fibrous material, glass fiber material, ceramic fibre material, asbestos fibre material.
The side of described interior inorganic fibre mat and nanometer sandwich layer, the connected mode between outer inorganic fibre mat and the opposite side of nanometer sandwich layer adopt high temperature resistant binder or stitching or mode that both combine.
Described nanometer sandwich layer is formed by the protective layer and one to the three layer of layer of nanomaterial stack combinations be positioned in the middle of described protective layer being positioned at both sides.
Described protective layer adopts any one in aluminium foil, aluminium flake or inorfil cloth.
Described layer of nanomaterial is inorfil cloth, and its single or double is coated with aerogel powder layer or stratum granulosum.
Connected mode between described protective layer and layer of nanomaterial adopts any one or both combinations in high temperature resistant binder bonding, suture way.
Described aerogel powder layer or stratum granulosum are aerosil, particle diameter is 0.1-0.5mm, bulk density is 40-200kg/m
3.
Compared with prior art, the present invention all adopts inorganic material to be composited, burning grade be A level, can under the environment of 800-1000 DEG C Long-Time Service.Contrast with aerogel blanket, in aerogel blanket, a large amount of inorfil can become heat bridge, reduce integral heat insulation effect, and the technical program have employed without heat bridge connected mode, decrease heat bridge effect, under normal temperature, thermal conductivity factor is 0.018-0.025 w/ (m.k), and heat insulation effect is suitable with aerogel blanket, than organic-based material height 1-2 doubly, than alumina silicate fibre height 3-4 doubly.Current aerogel blanket surface unprotect layer; aerogel material easily comes off from base material; the technical program is provided with protective layer outside layer of nanomaterial; can prevent nano material from coming off; simultaneously with the use of suturing skill, even if can ensure to be subject in external force situation also not occurrence of large-area clustering phenomena.This composite material I technology is simple, compared with aerogel blanket preparation technology, does not specially require temperature, pressure, reduces production process danger, and can realize working continuously, greatly increase work efficiency, thus reduces production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention:
Wherein 1 is interior inorganic fibre mat, and 2 is nanometer sandwich layer, and 3 is outer inorganic fibre mat;
Fig. 2 is the structural representation of nanometer sandwich layer:
Wherein 4 is protective layer, and 5 is layer of nanomaterial.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the present invention is further explained, but following content is not intended to limit the scope of the invention.
Embodiment 1
As shown in Figures 1 and 2, the present embodiment provides a kind of high temperature resistant aeroge compound insulating material, and this composite is combined successively by interior inorganic fibre mat 1, nanometer sandwich layer 2 and outer inorganic fibre mat 3.Nanometer sandwich layer 2 is made up of the protective layer 4 and middle layer of nanomaterial 5 being located at outside.Alumina silicate fibre blanket described in the present embodiment, aluminium foil are buied on market, inorfil cloth is produced by the tall and erect extraordinary Textile Co., Ltd. in sea, Suzhou, aerogel powder is produced by Shenzhen UniNano Advanced Materials Co., Ltd., and high-temperature agglomerant adopts the LY-1300 type high-temperature agglomerant produced by Deqing, Zhejiang Lan Ya crystal fibre Co., Ltd.
Preferably, the blanket that described interior inorganic fibre mat 1 and outer inorganic fibre mat 3 are all made up of alumina silicate fibre material formed.
Preferably, the combination of described interior inorganic fibre mat 1, connection dual-purpose high temperature resistant binder between outer inorganic fibre mat 3 and nanometer sandwich layer 2 and stitching.
Preferably, described nanometer sandwich layer 2 is combined by two-layer layer of nanomaterial 5.
Preferably, described nanometer sandwich layer protective layer 4 is aluminium foil.
Preferably, in described nanometer sandwich layer, layer of nanomaterial 5 is inorfil cloth, and it is two-sidedly all coated with aerogel powder layer.
Preferably, the connection dual-purpose high temperature resistant binder bonding between described nanometer sandwich layer protective layer 4 and layer of nanomaterial 5 and the combination sewed up.
Preferably, described aerogel powder aerosil particle diameter 0.1mm, bulk density 60kg/m
3.
Key property through testing high temperature resistant aeroge compound insulating material prepared by the present embodiment is as follows:
| Index | Thermal conductivity factor/w/ (m.k) | Burning grade | Serviceability temperature |
| ? | 0.020 | A | More than 800 DEG C |
High temperature resistant aeroge compound insulating material thermal conductivity factor prepared by the present embodiment is low to moderate 0.020w/ (m.k), and heat insulation effect is very good.Because this composite is all made up of inorganic material, so burning grade A level can be arrived, and can under 800 DEG C of environment Long-Time Service.
Embodiment 2
As shown in Figures 1 and 2, the present embodiment provides a kind of high temperature resistant aeroge compound insulating material, and this composite is combined successively by interior inorganic fibre mat 1, nanometer sandwich layer 2 and outer inorganic fibre mat 3.Nanometer sandwich layer 2 is made up of the protective layer 4 and middle layer of nanomaterial 5 being located at outside.Described in the present embodiment, ceramic fibre is buied on market, inorfil cloth is produced by the tall and erect extraordinary Textile Co., Ltd. in sea, Suzhou, aerogel powder is produced by Shenzhen UniNano Advanced Materials Co., Ltd., and high-temperature agglomerant adopts the LY-1300 type high-temperature agglomerant produced by Deqing, Zhejiang Lan Ya crystal fibre Co., Ltd.
Preferably, described interior inorganic fibre mat 1 and outer inorganic fibre mat 3 are all made up of ceramic fibre.
Preferably, described interior inorganic fibre mat 1, connection between outer inorganic fibre mat 3 and nanometer sandwich layer 2 use the combination of high temperature resistant binder and stitching.
Preferably, described nanometer sandwich layer 2 is combined by 3 layers of layer of nanomaterial 5.
Preferably, described nanometer sandwich layer protective layer 4 is inorfil cloth.
Preferably, in described nanometer sandwich layer, layer of nanomaterial 5 is inorfil cloth, and its single face spraying scribbles aerogel powder layer.
Preferably, the connection between described nanometer sandwich layer protective layer 4 and layer of nanomaterial 5, adopts the combination sewed up.
Preferably, described aerogel powder aerosil particle diameter 0.4mm, bulk density 100kg/m
3.
Key property through testing high temperature resistant aeroge compound insulating material prepared by the present embodiment is as follows:
| Index | Thermal conductivity factor/w/ (m.k) | Burning grade | Serviceability temperature |
| ? | 0.021 | A | More than 800 DEG C |
High temperature resistant aeroge compound insulating material thermal conductivity factor prepared by the present embodiment is low to moderate 0.021w/ (m.k), and heat insulation effect is very good.Because this composite is all made up of inorganic material, so burning grade A level can be arrived, and can under 800 DEG C of environment Long-Time Service.
Embodiment 3
As shown in Figures 1 and 2, the present embodiment provides a kind of high temperature resistant aeroge compound insulating material, and this composite is combined successively by interior inorganic fibre mat 1, nanometer sandwich layer 2 and outer inorganic fibre mat 3.Nanometer sandwich layer 2 is made up of the protective layer 4 and middle layer of nanomaterial 5 being located at outside.Magnesium silicate fiber blanket described in the present embodiment, aluminium flake are buied on market, inorfil cloth is produced by the tall and erect extraordinary Textile Co., Ltd. in sea, Suzhou, aerogel powder is produced by Shenzhen UniNano Advanced Materials Co., Ltd., and high-temperature agglomerant adopts the LY-1300 type high-temperature agglomerant produced by Deqing, Zhejiang Lan Ya crystal fibre Co., Ltd.
Preferably, described interior inorganic fibre mat 1 and outer inorganic fibre mat 3 are all made up of magnesium silicate fiber blanket.
Preferably, described interior inorganic fibre mat 1, connection between outer inorganic fibre mat 3 and nanometer sandwich layer 2 use the combination sewed up.
Preferably, described nanometer sandwich layer 2 is combined by individual layer layer of nanomaterial 5.
Preferably, described nanometer sandwich layer protective layer 4 is aluminium flake.
Preferably, in described nanometer sandwich layer, layer of nanomaterial 5 is inorfil cloth, and its double-face spray painting has aerogel powder layer.
Preferably, the connection between described nanometer sandwich layer protective layer 4 and layer of nanomaterial 5, adopts the mode of high-temperature-resistant adhesive bonding.
Preferably, described aerogel powder aerosil particle diameter 0.2mm, bulk density 40kg/m
3.
Key property through testing high temperature resistant aeroge compound insulating material prepared by the present embodiment is as follows:
| Index | Thermal conductivity factor/w/ (m.k) | Burning grade | Serviceability temperature |
| ? | 0.021 | A | More than 800 DEG C |
High temperature resistant aeroge compound insulating material thermal conductivity factor prepared by the present embodiment is low to moderate 0.021w/ (m.k), and heat insulation effect is very good.Because this composite is all made up of inorganic material, so burning grade A level can be arrived, and can under 800 DEG C of environment Long-Time Service.
Below be only the detailed description that preferred embodiment of the present invention is carried out, but the present invention is not limited to above embodiment.It should be understood that in the spirit and scope situation of the claim not departing from the application, the various amendments that those skilled in the art makes, still belong to scope of the present invention.
Claims (8)
1. a high temperature resistant aeroge compound insulating material, is characterized in that: described material is formed by interior inorganic fibre mat (1), nanometer sandwich layer (2), outer inorganic fibre mat (3) stack combinations successively.
2. high temperature resistant aeroge compound insulating material according to claim 1, is characterized in that: interior inorganic fibre mat (1) and outer inorganic fibre mat (3) are aluminosilicate-type fibrous material, one or any several combination in magnesium silicate type fibrous material, glass fiber material, ceramic fibre material, asbestos fibre material.
3. high temperature resistant aeroge compound insulating material according to claim 1, is characterized in that: described interior inorganic fibre mat (1) and the side of nanometer sandwich layer (2), connected mode between outer inorganic fibre mat (3) and the opposite side of nanometer sandwich layer (2) adopt high temperature resistant binder or stitching or mode that both combine.
4. high temperature resistant aeroge compound insulating material according to claim 1, is characterized in that: described nanometer sandwich layer (2) is formed by the protective layer (4) and one to three layer of layer of nanomaterial (5) stack combinations be positioned in the middle of described protective layer (4) being positioned at both sides.
5. high temperature resistant aeroge compound insulating material according to claim 4, is characterized in that: described protective layer (4) adopts any one in aluminium foil, aluminium flake or inorfil cloth.
6. high temperature resistant aeroge compound insulating material according to claim 4, is characterized in that: described layer of nanomaterial (5) is inorfil cloth, and its single or double is coated with aerogel powder layer or stratum granulosum.
7. high temperature resistant aeroge compound insulating material according to claim 4, is characterized in that: the connected mode between described protective layer (4) and layer of nanomaterial (5) adopts any one or both combinations in high temperature resistant binder bonding, suture way.
8. high temperature resistant aeroge compound insulating material according to claim 6, is characterized in that: described aerogel powder layer or stratum granulosum are aerosil, particle diameter is 0.1-0.5mm, bulk density is 40-200kg/m
3.
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| CN105128498A (en) * | 2015-08-13 | 2015-12-09 | 苏州市君悦新材料科技股份有限公司 | Vacuum thermal-insulation plate production method |
| CN105965986A (en) * | 2016-04-29 | 2016-09-28 | 航天材料及工艺研究所 | High-temperature shape keeping heat insulation nano-material and preparation method thereof |
| CN106460388A (en) * | 2015-11-24 | 2017-02-22 | 余卫平 | Structure for blocking heat transmission through curtain wall building node heat and cold bridge |
| CN106567474A (en) * | 2016-10-28 | 2017-04-19 | 王贵然 | Silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and preparation method thereof |
| CN108340641A (en) * | 2018-04-01 | 2018-07-31 | 中鸿纳米纤维技术丹阳有限公司 | A kind of high performance silicon aeroge insulation quilt |
| CN111098563A (en) * | 2019-12-25 | 2020-05-05 | 山东鲁阳浩特高技术纤维有限公司 | Nano heat-insulating felt and preparation method thereof, nano heat-insulating felt composite material and preparation method and application thereof |
| CN114804805A (en) * | 2022-04-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Aerogel composite material and preparation method thereof |
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| CN105128498A (en) * | 2015-08-13 | 2015-12-09 | 苏州市君悦新材料科技股份有限公司 | Vacuum thermal-insulation plate production method |
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| CN106567474A (en) * | 2016-10-28 | 2017-04-19 | 王贵然 | Silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and preparation method thereof |
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| CN111098563B (en) * | 2019-12-25 | 2022-07-08 | 山东鲁阳浩特高技术纤维有限公司 | Nano heat-insulating felt and preparation method thereof, nano heat-insulating felt composite material and preparation method and application thereof |
| CN114804805A (en) * | 2022-04-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Aerogel composite material and preparation method thereof |
| CN114804805B (en) * | 2022-04-24 | 2023-08-22 | 巩义市泛锐熠辉复合材料有限公司 | Aerogel composite material and preparation method thereof |
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Application publication date: 20141217 |