CN105965930A - Preparing method for inner hexagon negative poisson ratio honeycomb - Google Patents
Preparing method for inner hexagon negative poisson ratio honeycomb Download PDFInfo
- Publication number
- CN105965930A CN105965930A CN201610444325.8A CN201610444325A CN105965930A CN 105965930 A CN105965930 A CN 105965930A CN 201610444325 A CN201610444325 A CN 201610444325A CN 105965930 A CN105965930 A CN 105965930A
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- Prior art keywords
- honeycomb
- negative poisson
- block
- ratio
- preparation
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- 238000000034 method Methods 0.000 title abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 7
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims description 20
- 238000005470 impregnation Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000007598 dipping method Methods 0.000 abstract 3
- 239000002994 raw material Substances 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0089—Producing honeycomb structures
Abstract
A preparing method for an inner hexagon negative poisson ratio honeycomb comprises the following steps that firstly, a raw material base material is glued and laminated, and then a honeycomb laminated block is obtained in a hot-pressing manner; then, the honeycomb laminated block is drawn and shaped to obtain an excessively-drawn white honeycomb block, and the section of hole grids of the excessively-drawn white honeycomb block is in a rectangular shape; secondly, the excessively-drawn white honeycomb block prepared in the first step is subjected to glue dipping for the first time, heat treatment is conducted, and a glue solution for glue dipping is subjected to semi-curing; thirdly, the hole grids of the excessively-drawn white honeycomb block are compressed on a tool frame, the middle portions of the long edges of the hole grids are compressed, and the middle portions of the opposite long edges of the hole grids are oppositely bent; and fourthly, a compressed honeycomb is subjected to glue dipping and curing, and the inner hexagon negative poisson ratio honeycomb is obtained. According to the inner hexagon negative poisson ratio honeycomb structure prepared through the method, due to the special mechanical performance of the inner hexagon negative poisson ratio honeycomb structure, the inner hexagon negative poisson ratio honeycomb structure is very suitable for vibration reducing and impact resisting, and wider application prospects are achieved.
Description
Technical field
The present invention relates to the preparation method of a kind of interior hexagonal negative poisson's ratio honeycomb, belong to cellular material technical field.
Background technology
Cellular solid Low rigidity characteristic becomes buffering ideal material, low-intensity and big compression strain and makes it have high efficiency energy absorption characteristic, and low-density makes it apply to have light-weighted inherent advantage.It addition, the porous material structure of special multiple dimensioned (macroscopic view is seen with thin) mechanics design, macroscopic view negative poisson's ratio, the macroscopic view physico mechanical characteristic such as unloaded expansibility, zero thermal conductivity can be shown, be one of material circle study hotspot.Especially negative poisson's ratio material has the atypical behavior of drawn expanded, and shows mechanics and the physical characteristic of more uniqueness, therefore becomes the focus of research.
Negative poisson's ratio honeycomb, as the one in negative poisson's ratio material and structure, has been also carried out corresponding research both at home and abroad.Gibson.L.J is deduced negative poisson's ratio honeycomb cell element equivalent density, and the computing formula of Poisson when rigidity etc., the hypotenuse that these physical characteristics depend on cell element is long, diagonal rib inclination angle, the horizontal length of side and cell element wall thickness.For the Poisson's ratio computational methods of negative poisson's ratio structure, Hui Wan et al. proposes negative poisson's ratio material Poisson's ratio computation model in the case of large deformation, and research shows that Poisson's ratio can occur big change along with strain in the case of large deformation.The finite element scheme that D.U.Yang utilizes micropolar elasticity theory to be deduced two dimension triangular element bears the mechanical property of honeycomb texture for analyzing little yardstick.For the dynamic trait of negative poisson's ratio honeycomb texture, Massimo Ruzzene proposes a kind of model for describing propagation and the vibration characteristics of negative poisson's ratio honeycomb interlayer beam medium wave, and wherein transfer matrix can determine the band position of row wave attenuation.F. the vibration characteristics of negative poisson's ratio honeycomb sandwich panel is studied by Scarpa, and result shows the shape by appropriate design cell element, and the characteristic of plate can effectively be promoted.
In conventional positive hexagon cellular face, stress its deformation on macro-mechanical property belongs to the deformation of positive Poisson ratio material, i.e. cross section under tension attenuates, and pressurized cross section is thicker.Positive Poisson's ratio structure is as it is shown in figure 1, conventional regular hexagon honeycomb texture belongs to positive Poisson's ratio structure on mechanics, and mechanical property is same as conventional material structure.
Summary of the invention
It is an object of the present invention to provide the preparation method of a kind of interior hexagonal negative poisson's ratio honeycomb
For reaching above-mentioned purpose, the technical solution used in the present invention is: the preparation method of a kind of interior hexagonal negative poisson's ratio honeycomb, comprises the following steps:
The first step: raw base substrate obtains honeycomb fold block through gluing, lamination, then hot pressing；Next described honeycomb is folded block stretching, sizing obtains the white honeycomb block of overstretching, and the cross sectional shape of the cell of the white honeycomb block of this overstretching is rectangle；
Second step: the white honeycomb block of overstretching preparing the described first step carries out impregnation first, then carries out heat treatment and makes the glue semi-solid preparation of impregnation；
3rd step: on machine frame, the cell of honeycomb block white to described overstretching is compressed, and this compression is that the middle part on the long limit to described cell is carried out, and makes the middle part on the relative long limit of described cell to bending；
4th step: the honeycomb after compression is carried out impregnation solidification, obtains interior hexagonal negative poisson's ratio honeycomb.
Preferably technical scheme is: described honeycomb is the one in aramid paper honeycomb, polyimides paper honeycomb, carbon fiber paper honeycomb, glass cloth honeycomb.
Preferably technical scheme is: described honeycomb needs honeycomb is carried out semi-solid preparation heat treatment after impregnation first, and the time of heat treatment is 30-120 minute, and the temperature of heat treatment is 120-150 DEG C.
Preferably technical scheme is: described honeycomb setting temperature 220-330 DEG C, shaping time is 1-3 hour, and rate of temperature fall is: 10-50 DEG C/min.
Preferably technical scheme is: described honeycomb needs to be transferred on machine frame after semi-solid preparation, and this machine frame can stretch in lengthwise dimension, and the upper and lower surface of this machine frame has fixing device.
Owing to technique scheme is used, the present invention compared with prior art has following advantages and an effect:
The interior hexagonal negative poisson's ratio honeycomb texture that the present invention prepares, because of its special mechanical property, is especially suitable for vibration shock isolation and hits, have broader applications prospect.
Accompanying drawing explanation
Accompanying drawing 1 is positive Poisson's ratio structural representation.
The negative poisson's ratio honeycomb texture schematic diagram that accompanying drawing 2 prepares for the present invention.
Accompanying drawing 3 is cell schematic diagram under uncompressed state.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment: the preparation method of a kind of interior hexagonal negative poisson's ratio honeycomb
See shown in accompanying drawing 2 and accompanying drawing 3, the preparation method of a kind of interior hexagonal negative poisson's ratio honeycomb, comprise the following steps:
The first step: raw base substrate obtains honeycomb fold block through gluing, lamination, then hot pressing；Next described honeycomb is folded block stretching, sizing obtains the white honeycomb block of overstretching, and the cross sectional shape of the cell of the white honeycomb block of this overstretching is rectangle；
Second step: the white honeycomb block of overstretching preparing the described first step carries out impregnation first, then carries out heat treatment and makes the glue semi-solid preparation of impregnation；
3rd step: on machine frame, the cell of honeycomb block white to described overstretching is compressed, and this compression is that the middle part on the long limit to described cell is carried out, and makes the middle part on the relative long limit of described cell to bending；
4th step: the honeycomb after compression is carried out impregnation solidification, obtains interior hexagonal negative poisson's ratio honeycomb.
It is preferred embodiment: described honeycomb is the one in aramid paper honeycomb, polyimides paper honeycomb, carbon fiber paper honeycomb, glass cloth honeycomb.
It is preferred embodiment: described honeycomb needs honeycomb is carried out semi-solid preparation heat treatment after impregnation first, and the time of heat treatment is 30-120 minute, and the temperature of heat treatment is 120-150 DEG C.Being specially 60 minutes in the present embodiment loyalty, temperature is 130 DEG C.
It is preferred embodiment: described honeycomb setting temperature 220-330 DEG C that shaping time is 1-3 hour, and rate of temperature fall is: 10-50 DEG C/min.Being specially 260 DEG C in the present embodiment loyalty, the time is 2 hours, and rate of temperature fall is 30 DEG C/min.
It is preferred embodiment: described honeycomb needs to be transferred on machine frame after semi-solid preparation, and this machine frame can stretch in lengthwise dimension, and the upper and lower surface of this machine frame has fixing device.
In interior hexagon cellular face, stress its deformation on macro-mechanical property belongs to negative poisson's ratio material deformation, i.e. cross section under tension is thicker, and pressurized cross section attenuates.Interior hexagon cellular face shrinkage in the longitudinal direction is more preferable, is therefore especially suitable for vibration shock isolation and hits.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (5)
1. the preparation method of hexagonal negative poisson's ratio honeycomb in a kind, it is characterised in that: comprise the following steps:
The first step: raw base substrate obtains honeycomb fold block through gluing, lamination, then hot pressing；Next described honeycomb is folded block stretching, sizing obtains the white honeycomb block of overstretching, and the cross sectional shape of the cell of the white honeycomb block of this overstretching is rectangle；
Second step: the white honeycomb block of overstretching preparing the described first step carries out impregnation first, then carries out heat treatment and makes the glue semi-solid preparation of impregnation；
3rd step: on machine frame, the cell of honeycomb block white to described overstretching is compressed, and this compression is that the middle part on the long limit to described cell is carried out, and makes the middle part on the relative long limit of described cell to bending；
4th step: the honeycomb after compression is carried out impregnation solidification, obtains interior hexagonal negative poisson's ratio honeycomb.
The preparation method of interior hexagonal negative poisson's ratio honeycomb the most according to claim 1, it is characterised in that: described honeycomb is the one in aramid paper honeycomb, polyimides paper honeycomb, carbon fiber paper honeycomb, glass cloth honeycomb.
The preparation method of interior hexagonal negative poisson's ratio honeycomb the most according to claim 1, it is characterised in that: described honeycomb needs honeycomb is carried out semi-solid preparation heat treatment after impregnation first, and the time of heat treatment is 30-120 minute, and the temperature of heat treatment is 120-150 DEG C.
The preparation method of interior hexagonal negative poisson's ratio honeycomb the most according to claim 1, it is characterised in that: described honeycomb setting temperature 220-330 DEG C, shaping time is 1-3 hour, and rate of temperature fall is: 10-50 DEG C/min.
The preparation method of interior hexagonal negative poisson's ratio honeycomb the most according to claim 1, it is characterized in that: described honeycomb needs to be transferred on machine frame after semi-solid preparation, this machine frame can stretch in lengthwise dimension, and the upper and lower surface of this machine frame has fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444325.8A CN105965930B (en) | 2016-06-20 | 2016-06-20 | A kind of interior cellular preparation method of hexagonal negative poisson's ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444325.8A CN105965930B (en) | 2016-06-20 | 2016-06-20 | A kind of interior cellular preparation method of hexagonal negative poisson's ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105965930A true CN105965930A (en) | 2016-09-28 |
| CN105965930B CN105965930B (en) | 2018-07-03 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499121A (en) * | 2016-11-07 | 2017-03-15 | 青岛理工大学 | There is busting reinforcement concrete of Negative poisson's ratio and preparation method thereof |
| CN106948081A (en) * | 2017-03-06 | 2017-07-14 | 东华大学 | Linen look chopped fiber is prepared into the method for flexible auxetic compound fabric based on mull technique |
| CN106968053A (en) * | 2017-03-06 | 2017-07-21 | 东华大学 | The processing unit (plant) and method of indent hexagon cellular structurally flexible and elastic auxetic fabric |
| CN108840697A (en) * | 2018-06-29 | 2018-11-20 | 航天材料及工艺研究所 | A kind of carbon/carbon compound material honeycomb and preparation method thereof |
| CN110754887A (en) * | 2019-12-10 | 2020-02-07 | 南京工业大学 | Pillow with negative Poisson ratio effect and design method thereof |
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN114535666A (en) * | 2022-02-28 | 2022-05-27 | 广州大学 | Bionic negative Poisson's ratio drill bit and design method thereof |
| CN117601508A (en) * | 2024-01-18 | 2024-02-27 | 嘉兴雅港复合材料有限公司 | Flexible aramid fiber honeycomb core suitable for complex curved surface and manufacturing method thereof |
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| WO2010049511A2 (en) * | 2008-10-30 | 2010-05-06 | University Of Malta | A novel process for the manufacture of auxetic foams and for the conversion of auxetic foam to conventional form |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499121A (en) * | 2016-11-07 | 2017-03-15 | 青岛理工大学 | There is busting reinforcement concrete of Negative poisson's ratio and preparation method thereof |
| CN106499121B (en) * | 2016-11-07 | 2018-12-11 | 青岛理工大学 | Busting reinforcement concrete with Negative poisson's ratio and preparation method thereof |
| CN106948081B (en) * | 2017-03-06 | 2019-06-25 | 东华大学 | The method that linen look staple fiber is prepared into flexible auxetic compound fabric based on mull technique |
| CN106948081A (en) * | 2017-03-06 | 2017-07-14 | 东华大学 | Linen look chopped fiber is prepared into the method for flexible auxetic compound fabric based on mull technique |
| CN106968053A (en) * | 2017-03-06 | 2017-07-21 | 东华大学 | The processing unit (plant) and method of indent hexagon cellular structurally flexible and elastic auxetic fabric |
| CN106968053B (en) * | 2017-03-06 | 2019-06-04 | 东华大学 | The processing unit (plant) and method of indent hexagon cellular structurally flexible and elastic auxetic fabric |
| CN108840697A (en) * | 2018-06-29 | 2018-11-20 | 航天材料及工艺研究所 | A kind of carbon/carbon compound material honeycomb and preparation method thereof |
| CN108840697B (en) * | 2018-06-29 | 2021-07-13 | 航天材料及工艺研究所 | Carbon/carbon composite material honeycomb and preparation method thereof |
| CN110754887A (en) * | 2019-12-10 | 2020-02-07 | 南京工业大学 | Pillow with negative Poisson ratio effect and design method thereof |
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN112519330B (en) * | 2020-11-04 | 2022-04-29 | 东南大学 | Damping metamaterial damping plate |
| CN114535666A (en) * | 2022-02-28 | 2022-05-27 | 广州大学 | Bionic negative Poisson's ratio drill bit and design method thereof |
| CN117601508A (en) * | 2024-01-18 | 2024-02-27 | 嘉兴雅港复合材料有限公司 | Flexible aramid fiber honeycomb core suitable for complex curved surface and manufacturing method thereof |
| CN117601508B (en) * | 2024-01-18 | 2024-04-19 | 嘉兴雅港复合材料有限公司 | Flexible aramid fiber honeycomb core suitable for complex curved surface and manufacturing method thereof |
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| CN105965930B (en) | 2018-07-03 |
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Effective date of registration: 20231109 Address after: 257000 No. 101-1, building 4, No. 299, Chizhou Road, Dongying Development Zone, Shandong Province Patentee after: Shandong fanglei composite material Co.,Ltd. Address before: 215000 building 7, No.26, Qinghua Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: ARAMICORE COMPOSITE Co.,Ltd. |