CN206856185U - A kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue - Google Patents
A kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue Download PDFInfo
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- CN206856185U CN206856185U CN201720346983.3U CN201720346983U CN206856185U CN 206856185 U CN206856185 U CN 206856185U CN 201720346983 U CN201720346983 U CN 201720346983U CN 206856185 U CN206856185 U CN 206856185U
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- 239000000463 material Substances 0.000 title claims abstract description 131
- 239000002131 composite material Substances 0.000 title claims abstract description 78
- 239000003292 glue Substances 0.000 title claims abstract description 27
- 230000002708 enhancing effect Effects 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000003365 glass fiber Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000005034 decoration Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 description 61
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model discloses a kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue, belong to plate construction field.Enhanced PP composite sheets of the present utility model, including PP films and enhancing core, enhancing core are complex as layer structure between two layers of PP film, and enhancing core is any one in glass chopped mat, glass fibre belt, paper and PET non-woven fabrics.The invention also discloses the above-mentioned enhanced PP composite sheets making of application without the composite corrugated sheet material of glue.The utility model is complex as composite sheet by two layers of PP film and the enhancing core being sandwiched between two layers of PP film heating, and utilize composite sheet heating produced with combination corrugation sheet material, without any adhesive, health environment-friendly, building decoration and the environmental protection standard of automobile industry are met, and has the characteristics that manufacture craft is simple, waterproof and dampproof, thermal deformation is small, intensity is high, in light weight, cost is low, have a wide range of application, recoverable.
Description
Technical field
The sheet material and sheet material in the fields such as a kind of building, decoration, packaging are the utility model is related to, more specifically to one
Kind enhanced PP composite sheets and application its without the composite corrugated sheet material of glue.
Background technology
At present, be used to building, decorate and pack etc. on the market the sheet material in field mainly have clamping plate (also referred to as glued board, it is capable in
It is commonly called as thin core plate), this clamping plate is formed by three layers or the veneer of the millimeters thick of multilayer one or thin plate sticker hot pressing, and such clamping plate is prevented
Water moisture resistance is very poor, is easily deformed rotten after moisture absorption, and thermal deformation is also larger, and service life is not grown, and is adopted in manufacturing process
With a large amount of glue, containing harmful substances such as formaldehyde, benzene and ammonia, therefore the standard of environmental requirement is unable to reach；In addition, this kind of clamping plate
It is made using timber, with increasingly deficient, the cost also more and more higher, and weight weight of these sheet materials of timber resources, intensity
It is all weaker with fracture resistence force, it is easily damaged, should not be used in the larger occasion of stress in the case of by larger power.
Further, automobile industry is widely used at present paper honeycomb-PU sheet materials as inner decorative panel, such as car trunk carpet
(spare wheel cover) etc., although this paper honeycomb-PU sheet material lighter weights, bending resistance cracking resistance is preferable, its smell and VOC (volatilizations
Property organic compound) etc. index can not be effectively controlled, and cost of manufacture is also of a relatively high.
In view of the above-mentioned problems, also there is associated fiber enhancing based plate to occur, but this sheet material is mainly in constituent
Increase certain content glass fibre mixed after reshaping go out sheet material, but the processing and fabricating phase of this fiber reinforcement based plate
To complexity, the uniformity of glass fibre mixing is very big to the intensity effect of material, and the timber intensity produced is not easy to control.
The content of the invention
1. utility model technical problems to be solved
The purpose of this utility model is to overcome existing sheet material above shortcomings, there is provided a kind of enhanced PP composite sheets
Material and application its without the composite corrugated sheet material of glue, using the technical solution of the utility model, by two layers of PP film and be sandwiched in two layers
Enhancing core heating between PP films is complex as composite sheet, and utilizes composite sheet heating produced with combination corrugation sheet material, nothing
Any adhesive is needed, health environment-friendly, building decoration and the environmental protection standard of automobile industry is met, current automobile industry can be substituted
Wide variety of paper honeycomb-PU sheet materials, there is greater advantage in smell, VOC and cost；And with manufacture craft it is simple,
Waterproof and dampproof, the features such as thermal deformation is small, intensity is high, in light weight, cost is low, have a wide range of application, recoverable.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
A kind of enhanced PP composite sheets of the present utility model, including PP films and enhancing core, described enhancing core are set
Layer structure is complex as between two layers of PP film, described enhancing core is glass chopped mat, glass fibre belt, paper and PET nonwovens
Any one in cloth.
Further, described PP films and enhancing core are connected in one using heating combination process.
One kind of the present utility model is without the composite corrugated sheet material of glue, including two layers of plane sheets inside and outside and is located at
At least two layers of corrugation sheet material between two layers of plane sheets, and the corrugation direction of adjacent two layers corrugation sheet material is perpendicular, it is described
Plane sheets are flat board made of above-mentioned enhanced PP composite sheets, and described corrugation sheet material (2) is above-mentioned enhanced PP
Corrugated sheet made of composite sheet, described plane sheets and corrugation sheet material are linked together using heating combination process.
Further, described corrugation sheet material is provided with two layers.
One kind of the present utility model is without the composite corrugated sheet material of glue, including two layers of plane sheets inside and outside and is located at
At least two layers of corrugation sheet material between two layers of plane sheets, and a layer plane sheet material is additionally provided between adjacent two layers corrugation sheet material,
Described plane sheets are flat board made of above-mentioned enhanced PP composite sheets, and described corrugation sheet material is above-mentioned enhanced
Corrugated sheet made of PP composite sheets, described plane sheets and corrugation sheet material are linked together using heating combination process.
Further, the corrugation direction of described corrugation sheet material is parallel.
3. beneficial effect
Using technical scheme provided by the utility model, compared with existing known technology, have the advantages that：
A kind of enhanced PP composite sheets of the present utility model and application its without the composite corrugated sheet material of glue, it passes through two layers
PP films and the enhancing core heating being sandwiched between two layers of PP film are complex as composite sheet, and heat compound system using the composite sheet
Make corrugation sheet material, without any adhesive, health environment-friendly, meet building decoration and the environmental protection standard of automobile industry, Ke Yiqu
For the wide variety of paper honeycomb-PU sheet materials of current automobile industry, there is greater advantage in smell, VOC and cost；And have
The spies such as manufacture craft is simple, waterproof and dampproof, thermal deformation is small, intensity is high, in light weight, cost is low, have a wide range of application, recoverable
Point.
Brief description of the drawings
Fig. 1 is a kind of structural representation of enhanced PP composite sheets of the present utility model；
Fig. 2 be the utility model embodiment 1 it is a kind of using enhanced PP composite sheets make without glue composite corrugated board
The structural representation of material；
Fig. 3 be the utility model embodiment 2 it is a kind of using enhanced PP composite sheets make without glue composite corrugated board
The structural representation of material.
Label declaration in schematic diagram：
1-1, PP film；1-2, enhancing core；1st, plane sheets；2nd, corrugation sheet material.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail with reference to accompanying drawing.
As shown in figure 1, a kind of enhanced PP composite sheets of the present utility model, including PP films 1-1 and enhancing core 1-2,
Strengthen core 1-2 between two layers of PP films 1-1, and be complex as layer structure.Pass through the composite strengthening between two layers of PP films 1-1
Core 1-2, the intensity of the sheet material is enhanced, and it is compound by the PP films 1-1 and enhancing core 1-2 of sheet, making is simple and convenient,
Without using adhesive, health environment-friendly, and there is the features such as waterproof and dampproof, thermal deformation is small.
As shown in Fig. 2 it is of the present utility model a kind of without the composite corrugated sheet material of glue, including two layer planes inside and outside
Sheet material 1 and at least two layers of corrugation sheet material 2 between two layers of plane sheets 1, and the corrugation direction of adjacent two layers corrugation sheet material 2
Perpendicular, plane sheets 1 are flat board made of above-mentioned enhanced PP composite sheets, and corrugation sheet material 2 is above-mentioned enhanced PP
Corrugated sheet made of composite sheet, plane sheets 1 and corrugation sheet material 2 are linked together using heating combination process.Utilize corrugation
The perpendicular corrugation sheet material 2 in direction improves the intensity of sheet material, and reduces the weight of sheet material.
As shown in figure 3, it is of the present utility model a kind of without the composite corrugated sheet material of glue, including two layer planes inside and outside
Sheet material 1 and at least two layers of corrugation sheet material 2 between two layers of plane sheets 1, and be additionally provided between adjacent two layers corrugation sheet material 2
One layer plane sheet material 1, the corrugation direction of corrugation sheet material 2 is parallel, and plane sheets 1 are made up of above-mentioned enhanced PP composite sheets
Flat board, corrugation sheet material 2 be corrugated sheet, plane sheets 1 and corrugation sheet material 2 made of above-mentioned enhanced PP composite sheets use
Heating combination process links together.Alternately it is combined with each other using plane sheets 1 and corrugation sheet material 2, improves the strong of sheet material
Degree, and reduce the weight of sheet material.
With reference to embodiment, the utility model will be further described.
Embodiment 1
As shown in figure 1, a kind of enhanced PP composite sheets of the present embodiment, including PP films 1-1 and enhancing core 1-2, increase
Strong core 1-2 is complex as layer structure between two layers of PP films 1-1, enhancing core 1-2 be glass chopped mat, glass fibre belt,
Any one in paper and PET non-woven fabrics.Specifically, PP films 1-1 and enhancing core 1-2 is connected to one using heating combination process
Body.Above-mentioned PP films 1-1 is the thin slice made of a kind of thermoplastic resin by the polypropylene polymerization prepared by, and its thickness is according to specifically
Depending on needing, enhancing core 1-2 has some strength and toughness, using the intensity for strengthening core 1-2 and enhancing PP films 1-1, makes
The composite sheet has higher intensity, and thermal deformation is small, and serves waterproof and dampproof effect using the PP films 1-1 in outside, makes
It is longer with the life-span.Above-mentioned glass chopped mat is after continuous glass fibre is cut off, it is omnidirectional be uniformly distributed made of nonwoven increase
Strong material, have the advantages that to be evenly distributed, isotropism, be impregnated with fast and speed consistent, the glass chopped mat and PP film 1-1 hot pressing
Compound tense, upper and lower two layers of PP films 1-1 can be bonded in one through glass chopped mat, be firmly combined with stabilization, and manufacture craft is more
Add simply, it is more environmentally-friendly without adhesive bonding；Above-mentioned glass fibre belt is the stock yarn being chopped into by glass fiber precursor, by
Paper process is uniformly distributed into the continuous glass fibre scraps of paper at random, is bonded and formed with emulsion, has the advantages that in light weight, intensity is high；
Above-mentioned paper can use various types of paper, depending on needs, by paper and PP films 1-1 it is compound after, serve anti-
The moistureproof effect of water, available for many decoration packaging fields；Above-mentioned PET non-woven fabrics is by PET orient or random
Form, there is the features such as intensity height, and transverse and longitudinal similar intensity, environmentally friendly.
Above-mentioned enhanced PP composite sheets are with a wide range of applications, and can be made using the enhanced PP composite sheets
All kinds of sheet materials, as shown in Fig. 2 the present embodiment is a kind of without the composite corrugated sheet material of glue, including two layer planes inside and outside
Sheet material 1 and at least two layers of corrugation sheet material 2 between two layers of plane sheets 1, and the corrugation direction of adjacent two layers corrugation sheet material 2
Perpendicular, in the present embodiment, corrugation sheet material 2 is provided with two layers；Sheet material is improved using the perpendicular corrugation sheet material 2 in corrugation direction
Intensity, the flexural capacity of sheet material greatly improves, and reduces the weight of sheet material, helps to realize product lightweight.The plane
Sheet material 1 is flat board made of above-mentioned enhanced PP composite sheets, and the corrugation sheet material 2 is above-mentioned enhanced PP composite sheet systems
Into corrugated sheet, plane sheets 1 and corrugation sheet material 2 are respectively provided with higher intensity, therefore are made using enhanced PP composite sheets
Plate construction intensity it is higher.Plane sheets 1 and corrugation sheet material 2 are linked together using heating combination process, in plane sheets 1
In the recombination process of corrugation sheet material 2, pass through PP between adjacent plane sheet material 1 and corrugation sheet material 2, corrugation sheet material 2 and corrugation sheet material 2
Film 1-1 good bonds, without using any adhesive.
A kind of enhanced PP composite sheets of the present embodiment and application its without the composite corrugated sheet material of glue, using strengthening core
The intensity of PP materials is enhanced, and contributes to sheet material thermal finalization, while the waterproof and dampproof energy of sheet material is improved using PP materials
Power；When making sheet material composite corrugated without glue, enhanced PP composite sheets are prepared first, and enhancing core 1-2 is placed in two layers of PP
Then hot-forming between film 1-1, enhancing core 1-2 is in glass chopped mat, glass fibre belt, paper and PET non-woven fabrics
Any one, is existing product, can be directly from buying on the market；Then corrugation sheet material 2 is made, the corrugation sheet material 2 uses mould
It is hot-forming, make simple and convenient；Finally plane sheets 1 and the hot pressing of corrugation sheet material 2 are combined with each other, process work
Skill is simple, and cost of manufacture is cheap.
Embodiment 2
As shown in figure 3, the present embodiment is a kind of without the composite corrugated sheet material of glue, and it is similar to Example 1, using in embodiment 1
Enhanced PP composite sheets, this is without the composite corrugated sheet material of glue, including two layers of plane sheets 1 inside and outside and located at two
At least two layers of corrugation sheet material 2 between layer plane sheet material 1, and a layer plane sheet material is additionally provided between adjacent two layers corrugation sheet material 2
1, the corrugation direction of adjacent two layers corrugation sheet material 2 can be mutually perpendicular to or parallel, in the present embodiment preferably, corrugation sheet material 2
Corrugation direction it is parallel, be so easy to sheet material to bend in one direction, convenient use.The plane sheets 1 are above-mentioned increasing
Flat board made of strong type PP composite sheets, the corrugation sheet material 2 are corrugated sheet, plane made of above-mentioned enhanced PP composite sheets
Sheet material 1 and corrugation sheet material 2 are respectively provided with higher intensity, therefore use the plate construction intensity of enhanced PP composite sheets making more
It is high.Plane sheets 1 and corrugation sheet material 2 are linked together using heating combination process, compound in plane sheets 1 and corrugation sheet material 2
During, by PP film 1-1 good bonds between adjacent plane sheet material 1 and corrugation sheet material 2, without using any adhesive.
The present embodiment it is a kind of without the composite corrugated sheet material of glue, during making, prepare enhanced PP composite sheets first, will strengthen
Core 1-2 is placed between two layers of PP films 1-1, then heats composite molding；Above-mentioned enhancing core 1-2 is chopped for glass
Any one in felt, glass fibre belt, paper and PET non-woven fabrics, is existing product, can be directly from buying on the market；Then make
Corrugation sheet material 2, the corrugation sheet material 2 are molded using mould heat pressure, are made simple and convenient；Finally by plane sheets 1 and corrugation
Sheet material 2 is stacked alternately heating and is combined with each other, and processing technology is simple, and cost of manufacture is cheap.
A kind of enhanced PP composite sheets of the present utility model and application its without the composite corrugated sheet material of glue, it passes through two layers
PP films and the enhancing core heating being sandwiched between two layers of PP film are complex as composite sheet, and heat compound system using the composite sheet
Make corrugation sheet material, without any adhesive, health environment-friendly, meet building decoration and the environmental protection standard of automobile industry, Ke Yiqu
For the wide variety of paper honeycomb-PU sheet materials of current automobile industry, there is greater advantage in smell, VOC and cost；And have
The spies such as manufacture craft is simple, waterproof and dampproof, thermal deformation is small, intensity is high, in light weight, cost is low, have a wide range of application, recoverable
Point.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, in the case where not departing from the utility model and creating objective, without creatively designing
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (6)
1. one kind is without the composite corrugated sheet material of glue, including two layers of plane sheets inside and outside（1）With located at two layers of planar chip
Material（1）Between at least two layers of corrugation sheet material（2）, and adjacent two layers corrugation sheet material（2）Corrugation direction it is perpendicular, its feature exists
In：Described plane sheets（1）For flat board made of enhanced PP composite sheets, described corrugation sheet material（2）For enhanced PP
Corrugated sheet made of composite sheet, described plane sheets（1）With corrugation sheet material（2）One is connected to using heating combination process
Rise；Described enhanced PP composite sheets include PP films（1-1）With enhancing core（1-2）, described enhancing core（1-2）It is located at
Two layers of PP film（1-1）Between be complex as layer structure, described enhancing core（1-2）For glass chopped mat, glass fibre belt, paper and
Any one in PET non-woven fabrics.
2. one kind according to claim 1 is without the composite corrugated sheet material of glue, it is characterised in that：Described PP films（1-1）And increasing
Strong core（1-2）It is connected in one using heating combination process.
3. one kind according to claim 1 is without the composite corrugated sheet material of glue, it is characterised in that：Described corrugation sheet material（2）If
Have two layers.
4. one kind is without the composite corrugated sheet material of glue, including two layers of plane sheets inside and outside（1）With located at two layers of planar chip
Material（1）Between at least two layers of corrugation sheet material（2）, and adjacent two layers corrugation sheet material（2）Between be additionally provided with a layer plane sheet material
（1）, it is characterised in that：Described plane sheets（1）For flat board made of enhanced PP composite sheets, described corrugation sheet material
（2）For corrugated sheet, described plane sheets made of enhanced PP composite sheets（1）With corrugation sheet material（2）It is compound using heating
Technique links together；Described enhanced PP composite sheets include PP films（1-1）With enhancing core（1-2）, described enhancing
Core（1-2）Located at two layers of PP film（1-1）Between be complex as layer structure, described enhancing core（1-2）For glass chopped mat,
Any one in glass fibre belt, paper and PET non-woven fabrics.
5. one kind according to claim 4 is without the composite corrugated sheet material of glue, it is characterised in that：Described PP films（1-1）And increasing
Strong core（1-2）It is connected in one using heating combination process.
6. one kind according to claim 4 is without the composite corrugated sheet material of glue, it is characterised in that：Described corrugation sheet material（2）'s
Corrugation direction is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720346983.3U CN206856185U (en) | 2017-04-05 | 2017-04-05 | A kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720346983.3U CN206856185U (en) | 2017-04-05 | 2017-04-05 | A kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206856185U true CN206856185U (en) | 2018-01-09 |
Family
ID=60817137
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720346983.3U Expired - Fee Related CN206856185U (en) | 2017-04-05 | 2017-04-05 | A kind of enhanced PP composite sheets and application its without the composite corrugated sheet material of glue |
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| Country | Link |
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| CN (1) | CN206856185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878967A (en) * | 2020-07-02 | 2022-01-04 | 台湾龙盟复合材料股份有限公司 | Composite waterproof corrugated paper and manufacturing method thereof |
| CN114590004A (en) * | 2022-03-22 | 2022-06-07 | 武汉瑞荣达隔音材料有限公司 | Felt-based composite material and preparation method and device thereof |
| CN119659123A (en) * | 2024-11-13 | 2025-03-21 | 浙江金海高科股份有限公司 | A corrugated structure full heat exchange core assembled by electrostatic assembly and preparation method thereof |
-
2017
- 2017-04-05 CN CN201720346983.3U patent/CN206856185U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878967A (en) * | 2020-07-02 | 2022-01-04 | 台湾龙盟复合材料股份有限公司 | Composite waterproof corrugated paper and manufacturing method thereof |
| CN113878967B (en) * | 2020-07-02 | 2024-03-05 | 台湾龙盟复合材料股份有限公司 | Composite waterproof corrugated paper and manufacturing method thereof |
| US12331468B2 (en) | 2020-07-02 | 2025-06-17 | Taiwan Lung Meng Advanced Composite Materials Co., Ltd. | Composite waterproof corrugated paper and manufacturing method thereof |
| CN114590004A (en) * | 2022-03-22 | 2022-06-07 | 武汉瑞荣达隔音材料有限公司 | Felt-based composite material and preparation method and device thereof |
| CN119659123A (en) * | 2024-11-13 | 2025-03-21 | 浙江金海高科股份有限公司 | A corrugated structure full heat exchange core assembled by electrostatic assembly and preparation method thereof |
| CN119659123B (en) * | 2024-11-13 | 2025-11-04 | 浙江金海高科股份有限公司 | A corrugated total heat exchange core assembled by electrostatics and its preparation method |
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Granted publication date: 20180109 Termination date: 20200405 |