CN111270790A - Novel pressure reduction anti-seismic device for building - Google Patents
Novel pressure reduction anti-seismic device for building Download PDFInfo
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- CN111270790A CN111270790A CN201911081082.6A CN201911081082A CN111270790A CN 111270790 A CN111270790 A CN 111270790A CN 201911081082 A CN201911081082 A CN 201911081082A CN 111270790 A CN111270790 A CN 111270790A
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- transverse reinforcing
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- building
- heat
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 238000004321 preservation Methods 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 21
- 229920000742 Cotton Polymers 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 16
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 9
- 230000006837 decompression Effects 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 7
- 238000005187 foaming Methods 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 description 16
- 239000012634 fragment Substances 0.000 description 16
- 239000004568 cement Substances 0.000 description 7
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention relates to the technical field of buildings, in particular to a novel pressure-reducing anti-seismic device for buildings, which comprises a first outer layer, wherein a first heat-insulating layer is adhered and covered on one side of the first outer layer, a first transverse reinforcing layer is fixedly installed on the other side of the first heat-insulating layer, a shock-absorbing layer is fixedly installed on the other side of the first transverse reinforcing layer, a plurality of vertical reinforcing layers are uniformly and fixedly installed in the shock-absorbing layer at intervals, a second transverse reinforcing layer is fixedly installed on the other side of the shock-absorbing layer, a second heat-insulating layer is adhered and covered on the other side of the second transverse reinforcing layer, and a second outer layer is adhered and covered on the other side of the second.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a novel pressure-reducing anti-seismic device for buildings.
Background
Building wall is the important component of house, and its effect is the bearing, the enclosure or separate space, because indoor wall has the phenomenon that the shock attenuation effect is not good enough, and many walls do not possess syllable-dividing, heat preservation, waterproof and waterproof effect moreover, not only life is short, and the security is low for this reason, we propose a novel decompression antidetonation device for building to solve the above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel pressure-reducing anti-seismic device for a building.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design is a novel pressure reduction anti-seismic device for building, and comprises a first outer layer, first outer one side is pasted and is stamped a first heat preservation, first heat preservation opposite side fixed mounting has a first horizontal enhancement layer, first horizontal enhancement layer opposite side fixed mounting has the buffer layer, the inside even interval fixed mounting of buffer layer has a plurality of vertical enhancement layers, buffer layer opposite side fixed mounting has the horizontal enhancement layer of second, the horizontal enhancement layer opposite side of second is pasted and is stamped the second heat preservation, the second heat preservation opposite side is pasted and is stamped the second outer.
Preferably, first skin includes decorative layer, waterproof putty layer, fire protection coating and anticorrosive coating, the decorative layer with waterproof putty layer one side is pasted and is linked to each other, waterproof putty layer opposite side is pasted and is stamped the fire protection coating, the fire protection coating opposite side is pasted and is stamped the anticorrosive coating.
Preferably, anticorrosive layer is including anticorrosive paint coating, plastic layer and resin basic unit, anticorrosive paint coating with fire protection coating pastes continuously, anticorrosive paint coating opposite side is pasted and is stamped the plastic layer, the plastic layer opposite side is pasted and is stamped the resin basic unit that covers.
Preferably, first heat preservation includes silicate heat preservation, heat preservation bonding adhesive cement layer and polyurethane foaming layer, silicate heat preservation one side with the resin base layer is pasted and is linked to each other, silicate heat preservation opposite side is pasted and is stamped the heat preservation bonding adhesive cement layer, heat preservation bonding adhesive cement layer opposite side is pasted and is stamped the polyurethane foaming layer.
Preferably, the shock-absorbing layer comprises a supporting bulge, a supporting frame and a first sound-absorbing cotton layer, the supporting bulge is fixedly arranged between the first transverse reinforcing layer and the second transverse reinforcing layer, the U-shaped supporting frame is welded inside the supporting bulge, and the first sound-absorbing cotton layer is filled inside the supporting frame.
Preferably, the horizontal enhancement layer of second includes first fossil fragments, second fossil fragments and bracing, the even vertical crossing of first fossil fragments is equipped with a plurality ofly, the even welding of first fossil fragments one side has the bracing, the welding of bracing opposite side has the second fossil fragments, the second fossil fragments with first fossil fragments are parallel to each other.
Preferably, the second transverse reinforcing layer, the vertical reinforcing layer and the first transverse reinforcing layer have the same structure, and the sound insulation layers are filled in the first transverse reinforcing layer and the second transverse reinforcing layer.
Preferably, the puigging includes that the second inhales cotton layer of sound, deadening felt and damping acoustic celotex board, the second inhales cotton layer one side and pastes and to have covered the deadening felt, the deadening felt opposite side is pasted and is covered and have the damping acoustic celotex board.
The novel pressure-reducing anti-seismic device for the building, provided by the invention, has the beneficial effects that: this novel decompression antidetonation device for building inside first outer layer has the decoration, waterproof and fireproof function, the anticorrosive coating has better anticorrosive effect, it has improved the inside anticorrosive property of this decompression antidetonation wall body greatly, the life of wall body has been prolonged, the heat preservation can guarantee that indoor temperature is in the state of relative more balanced to a certain extent, improve the comfort level of living, in addition, the support frame makes the inside support intensity of support arch increase, it is "S" type structure to support protruding cross-section, when the enhancement layer of both sides received the effect of power, it can play the effect of buffering decompression to power to support the arch, the inside decompression antidetonation effect of this wall body has been improved greatly.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a novel pressure-reducing anti-seismic device for buildings according to the present invention;
fig. 2 is a schematic longitudinal sectional structural view of a novel pressure-reducing anti-seismic device for buildings according to the present invention;
FIG. 3 is a schematic cross-sectional view of the first outer layer of the novel pressure-reducing earthquake-resistant device for buildings according to the present invention;
FIG. 4 is a schematic cross-sectional view of a first heat-insulating layer of the novel pressure-reducing earthquake-resistant device for buildings according to the present invention;
FIG. 5 is a schematic cross-sectional view of an anticorrosive coating of a novel pressure-reducing earthquake-resistant device for buildings according to the present invention;
fig. 6 is an enlarged schematic view of a portion a in fig. 1.
In the figure: the decorative layer comprises a first outer layer 1, a decorative layer 11, a waterproof putty layer 12, a fireproof coating 13, an anticorrosive layer 14, an anticorrosive paint coating 141, a plastic layer 142, a resin base layer 143, a first heat preservation layer 2, a silicate heat preservation layer 21, a heat preservation adhesive mortar layer 22, a polyurethane foam layer 23, a first transverse reinforcing layer 3, a vertical reinforcing layer 4, a shock absorption layer 5, a supporting protrusion 51, a supporting frame 52, a first sound absorption cotton layer 53, a second transverse reinforcing layer 6, a first keel 61, a second keel 62, an inclined strut 63, a sound insulation layer 64, a second sound absorption cotton layer 641, a sound insulation felt 642, a damping plate 643, a second heat preservation layer 7 and a second outer layer 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-6, a novel decompression antidetonation device for building, including first outer 1, first outer 1 includes decorative layer 11, waterproof putty layer 12, fire protection coating 13 and anticorrosive coating 14, decorative layer 11 is pasted with waterproof putty layer 12 one side and is linked to each other, waterproof putty layer 12 opposite side is pasted and is stamped fireproof coating 13, fireproof coating 13 opposite side is pasted and is stamped anticorrosive coating 14, decorative layer 11 plays the effect of decoration, waterproof putty layer 12 comprises waterproof putty powder, has better water-proof effects, fireproof coating 13 can play certain fire prevention effect.
First outer 1 one side is pasted and is stamped first heat preservation 2, first heat preservation 2 includes silicate heat preservation 21, heat preservation bonding adhesive cement layer 22 and polyurethane foam layer 23, silicate heat preservation 21 one side is pasted with resin base layer 143 and is linked to each other, silicate heat preservation 21 opposite side is pasted and is stamped heat preservation bonding adhesive cement layer 22, heat preservation bonding adhesive cement layer 22 opposite side is pasted and is stamped polyurethane foam layer 23, silicate heat preservation 21, heat preservation bonding adhesive cement layer 22 and polyurethane foam layer 23 all have heat retaining effect, can guarantee that indoor temperature is in the state of relative more balanced to a certain extent, improve the comfort level of living.
The other side of the first heat preservation layer 2 is fixedly provided with a first transverse reinforcing layer 3, the other side of the first transverse reinforcing layer 3 is fixedly provided with a shock absorption layer 5, a plurality of vertical reinforcing layers 4 are uniformly and fixedly arranged in the shock absorption layer 5 at intervals, the shock absorption layer 5 comprises a supporting bulge 51, a supporting frame 52 and a first sound absorption cotton layer 53, the supporting bulge 51 is fixedly arranged between the first transverse reinforcing layer 3 and a second transverse reinforcing layer 6, the inner part of the supporting bulge 51 is welded with a U-shaped supporting frame 52, the supporting frame 52 enables the supporting strength in the supporting bulge 51 to be increased, the cross section of the supporting bulge 51 is of an S-shaped structure, when the reinforcing layers on the two sides are acted by force, the supporting bulge 51 can play a role in buffering and reducing pressure, the pressure reducing and shock resisting effects in the wall are greatly improved, the first sound absorption cotton layer 53 is filled in the supporting frame 52, and the sound absorption cotton, has certain sound insulation effect.
5 opposite side fixed mounting of buffer layer has the horizontal enhancement layer of second 6, the horizontal enhancement layer of second 6 includes first fossil fragments 61, second fossil fragments 62 and bracing 63, the even vertical cross of first fossil fragments 61 is equipped with a plurality ofly, the even welding of first fossil fragments 61 one side has bracing 63, the welding of bracing 63 opposite side has second fossil fragments 62, second fossil fragments 62 is parallel to each other with first fossil fragments 61, first fossil fragments 61 and second fossil fragments 62 have better support intensity under bracing 63's support, the horizontal enhancement layer of second 6, the structure of vertical enhancement layer 4 and first horizontal enhancement layer 3 is the same, the horizontal enhancement layer of second 6 opposite side is pasted and is stamped second heat preservation 7, the structure of second heat preservation 7 and first heat preservation 12 is the same, 7 opposite sides of second heat preservation are pasted and are stamped second outer 8, the outer 8 of second is the same with the structure of first outer 1.
Example 2
Referring to fig. 1 to 6, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the sound insulation layer 64 is filled inside each of the first transverse reinforcing layer 3 and the second transverse reinforcing layer 6, the sound insulation layer 64 includes a second sound absorption cotton layer 641, a sound insulation felt 642 and a damping sound insulation board 643, one side of the second sound absorption cotton layer 641 is pasted and covered with the sound insulation felt 642, the other side of the sound insulation felt 642 is pasted and covered with the damping sound insulation board 643, the second sound absorption cotton layer 641 and the sound insulation felt 642 can absorb sound waves, the damping sound insulation board 643 can block sound transmission, and the second sound absorption cotton layer 641, the sound insulation felt 642 and the damping sound insulation board 643 all have good sound insulation and noise reduction effects, and further improve the sound insulation effect inside the wall.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a novel decompression antidetonation device for building, includes first outer layer (1), its characterized in that, first outer layer (1) one side is pasted and is stamped first heat preservation (2), first heat preservation (2) opposite side fixed mounting has first horizontal enhancement layer (3), first horizontal enhancement layer (3) opposite side fixed mounting has buffer layer (5), buffer layer (5) inside even interval fixed mounting has a plurality of vertical enhancement layers (4), buffer layer (5) opposite side fixed mounting has the horizontal enhancement layer of second (6), the horizontal enhancement layer of second (6) opposite side is pasted and is stamped second heat preservation (7), second heat preservation (7) opposite side is pasted and is stamped second outer layer (8).
2. The novel pressure-reducing anti-seismic device for the building is characterized in that the first outer layer (1) comprises a decorative layer (11), a waterproof putty layer (12), a fireproof coating (13) and an anticorrosive layer (14), the decorative layer (11) is connected with one side of the waterproof putty layer (12) in a sticking mode, the other side of the waterproof putty layer (12) is covered with the fireproof coating (13) in a sticking mode, and the other side of the fireproof coating (13) is covered with the anticorrosive layer (14) in a sticking mode.
3. The novel pressure-reducing anti-seismic device for the building is characterized in that the anti-corrosion layer (14) comprises an anti-corrosion paint coating (141), a plastic layer (142) and a resin base layer (143), the anti-corrosion paint coating (141) is connected with the fireproof coating (13) in a sticking mode, the plastic layer (142) is stuck to the other side of the anti-corrosion paint coating (141), and the resin base layer (143) is stuck to the other side of the plastic layer (142).
4. The novel pressure-reducing anti-seismic device for the building according to claim 2, wherein the first heat-insulating layer (2) comprises a silicate heat-insulating layer (21), a heat-insulating adhesive mortar layer (22) and a polyurethane foaming layer (23), one side of the silicate heat-insulating layer (21) is connected with the resin base layer (143) in a sticking manner, the other side of the silicate heat-insulating layer (21) is covered with the heat-insulating adhesive mortar layer (22), and the other side of the heat-insulating adhesive mortar layer (22) is covered with the polyurethane foaming layer (23) in a sticking manner.
5. The novel pressure-reducing anti-seismic device for the building is characterized in that the shock absorption layer (5) comprises a supporting bulge (51), a supporting frame (52) and a first sound-absorbing cotton layer (53), the supporting bulge (51) is fixedly installed between the first transverse reinforcing layer (3) and the second transverse reinforcing layer (6), the U-shaped supporting frame (52) is welded inside the supporting bulge (51), and the first sound-absorbing cotton layer (53) is filled inside the supporting frame (52).
6. The novel pressure-reducing anti-seismic device for the building is characterized in that the second transverse reinforcing layer (6) comprises a first keel (61), a second keel (62) and inclined struts (63), the first keel (61) is uniformly and vertically crossed and provided with a plurality of inclined struts (63), the inclined struts (63) are uniformly welded on one side of the first keel (61), the second keel (62) is welded on the other side of the inclined struts (63), and the second keel (62) and the first keel (61) are parallel to each other.
7. A novel pressure-reducing anti-seismic device for buildings according to claim 6, characterized in that the second transverse reinforcing layer (6), the vertical reinforcing layer (4) and the first transverse reinforcing layer (3) have the same structure, and the sound insulation layer (64) is filled in each of the first transverse reinforcing layer (3) and the second transverse reinforcing layer (6).
8. The novel pressure reduction and earthquake proofing device for buildings according to claim 7 is characterized in that the sound insulation layer (64) comprises a second sound absorption cotton layer (641), an acoustic felt (642) and a damping sound insulation board (643), wherein one side of the second sound absorption cotton layer (641) is pasted and covered with the acoustic felt (642), and the other side of the acoustic felt (642) is pasted and covered with the damping sound insulation board (643).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081082.6A CN111270790B (en) | 2019-11-07 | 2019-11-07 | Pressure-reducing anti-seismic device for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081082.6A CN111270790B (en) | 2019-11-07 | 2019-11-07 | Pressure-reducing anti-seismic device for building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111270790A true CN111270790A (en) | 2020-06-12 |
| CN111270790B CN111270790B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911081082.6A Active CN111270790B (en) | 2019-11-07 | 2019-11-07 | Pressure-reducing anti-seismic device for building |
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| Country | Link |
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| CN (1) | CN111270790B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910710A (en) * | 2021-09-24 | 2022-01-11 | 上海工程技术大学 | Building material with sound insulation function and preparation method thereof |
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| CN107489251A (en) * | 2017-09-23 | 2017-12-19 | 天津市盛泰建筑工程有限公司 | A kind of insulation and fire-proof paint exterior wall and its construction method |
| CN208930860U (en) * | 2018-08-14 | 2019-06-04 | 浙江舜业净化科技有限公司 | A kind of antistatic color steel plate |
| CN209568556U (en) * | 2019-01-02 | 2019-11-01 | 李泽亮 | A kind of fireproofed polyurethane composite insulation boards |
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2019
- 2019-11-07 CN CN201911081082.6A patent/CN111270790B/en active Active
Patent Citations (7)
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| CN1598186A (en) * | 2004-07-19 | 2005-03-23 | 景志熙 | Wall with triangle frame structure |
| CN205530986U (en) * | 2016-01-22 | 2016-08-31 | 曾彦钦 | Strenghthened type waterproof insulation wallboard for building |
| CN106759989A (en) * | 2016-12-09 | 2017-05-31 | 中民筑友科技投资有限公司 | Warming plate and insulation board fabrication method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910710A (en) * | 2021-09-24 | 2022-01-11 | 上海工程技术大学 | Building material with sound insulation function and preparation method thereof |
| CN113910710B (en) * | 2021-09-24 | 2023-09-26 | 上海工程技术大学 | Building material with sound insulation function and preparation method thereof |
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| Publication number | Publication date |
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| CN111270790B (en) | 2021-08-17 |
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