CN104149400A - Double-spiral fiber reinforced foam laminated plate - Google Patents
Double-spiral fiber reinforced foam laminated plate Download PDFInfo
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- CN104149400A CN104149400A CN201410333922.4A CN201410333922A CN104149400A CN 104149400 A CN104149400 A CN 104149400A CN 201410333922 A CN201410333922 A CN 201410333922A CN 104149400 A CN104149400 A CN 104149400A
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Abstract
The invention discloses a double-spiral fiber reinforced foam laminated plate which mainly comprises surface-layer metal plates and a fiber reinforced foam core layer, wherein the fiber reinforced foam core layer is arranged between the two layers of metal plates; the fiber reinforced foam core layer consists of a double-spiral fiber and foam matrix which are compounded; the foam matrix is made of a porous resin material filled with hollow glass microspheres; the double-spiral fiber is prepared from natural plant fiber and nylon or copper fiber in a fiber weaving or winding manner; the double-spiral fiber filling amount accounts for 10-40% of the total volume of the fiber reinforced foam core layer; the length of the double-spiral fiber is 0.5-10mm; the fiber reinforced foam core layer is prepared by the procedures of stirring and mixing raw materials of the foam matrix, subsequently pouring the raw materials into a mold with the pre-arranged double-spiral fiber and curing. Due to a spatial structure formed by mutual winding of the double-spiral fiber, the damage to the boundary between the fiber and the matrix is effectively prevented, and the binding capability of the fiber and the matrix is improved.
Description
Technical field
The present invention relates to a kind of laminate, particularly related to a kind of froth bed plywood with double helix fiber reinforcement feature.
Background technology
Porous material, comprises the materials such as metal foam and foam of polymers, has that specific strength is high, specific stiffness is high, and compressive strength is large and absorb the advantages such as energy characteristics is good, is widely used in building boats and ships, wind energy and aerospace field.Porous material is a large amount of pore cell structures because inside has, and with respect to solid material, can greatly reduce solid heat transfer area, increase heat transfer distances, are therefore particularly suitable for doing heat-barrier material.With respect to solid construction, the pore cell structure of porous material easily produces plastic deformation when being hit, the absorption of energy while being conducive to impact, so porous material is also through being usually used in vibration-proof structure.Yet hot strength is low, fragility makes greatly porous material application be restricted.Single porous material, the processing characteristics of the porous material that especially firmly foams is poor.Fine this problem that solved of appearance of fibre reinforced composites.A small amount of fiber reinforcement just can make porous material hot strength and toughness be greatly enhanced.Yet foamed material particularly high porosity foamed material due to exist a large amount of cavity structures make matrix and interfibrous combination more weak, under extraneous load action, easily there is the de-fixation phenomenon in interface, make fiber enhanced foam composite occur losing efficacy, affect the normal use of plate.
Summary of the invention
The object of the invention is to that in use matrix and fiber occur that interface takes off combination prematurely for fear of froth bed plywood; affect fiber enhanced foam laminate mechanical property; a kind of laminate being comprised of double helix fiber enhanced foam material sandwich layer and metal coating top layer has been proposed, to improve mechanical property and the stability of fiber enhanced foam laminate.
The present invention is achieved through the following technical solutions:
A double helix fiber enhanced foam laminate, is mainly comprised of top layer metallic plate and fiber enhanced foam sandwich layer, and fiber enhanced foam sandwich layer is arranged between double layer of metal plate; The thickness of described top layer metallic plate is (0.2 ?1) mm, and the thickness of fiber enhanced foam sandwich layer is (0.5 ?5) mm; Described fiber enhanced foam sandwich layer is by double helix fiber and foam matrix is compound forms; Foam matrix is the porous resin material that hollow glass micro-ball is filled; Described double helix fiber is that natural plant fibre, nylon or copper fiber obtain by fibrage or Filament-wound Machine; Double helix fiber-filled amount account for fiber enhanced foam sandwich layer cumulative volume 10% ?40%, the length of described double helix fiber be 0.5 ?10mm; Described fiber enhanced foam sandwich layer obtains after pouring into after the raw material of foam matrix is uniformly mixed and solidifying in the mould that arranges in advance double helix fiber.
Further, described top layer metallic plate adopts aluminium alloy plate or steel alloy laminate.
The diameter of described hollow glass micro-ball is (2 ?120) μ m.
Described double helix fiber 3 be filled to orderly or unordered filling.
In mass fraction, the raw material of described foam matrix by 1 part of E44 ?6101 epoxy resin, 0.3～2 part of polyamine EP type epoxy curing agent, 0.003 part of BYK ?the hollow glass micro-ball of A530 silicone defoaming agent and 0～1 part of T15 series form.
Between described top layer metallic plate and fiber enhanced foam sandwich layer, by adhesive, bond.
With respect to prior art, the present invention has following features:
Laminate of the present invention is by being used the composite construction on a kind of double helix fiber enhanced foam sandwich layer and metal coating top layer; by the distinctive space structure increase matrix of double helix fiber and the mechanical lock between fiber, make a concerted effort; can preventing layer plywood sandwich layer matrix and the de-combination of fiber; effectively improve the interface bond strength of matrix and fiber, improve mechanical property and the stability of laminate.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of double helix fiber enhanced foam laminate;
Wherein 1 is top layer metallic plate, and 2 is fiber enhanced foam sandwich layer, and 3 is double helix fiber, and 4 is foam matrix.
Fig. 2 is the manufacture schematic diagram of double helix fiber;
Wherein, 5 is two fibers straights that are parallel to each other, and 6 is rotatable fixture, and 7 is stationary fixture.
Fig. 3 is the three-dimensional structure schematic diagram of the double helix fiber in Fig. 1.
Fig. 4 is the interface bond strength comparison diagram of double helix fiber and fibers straight in the situation of same foam matrix.
The specific embodiment
For understanding better the present invention, below in conjunction with accompanying drawing, the invention will be further described, but embodiments of the present invention are not limited to this.
As shown in Figure 1, a double helix fiber enhanced foam laminate, is mainly comprised of top layer metallic plate 1 and fiber enhanced foam sandwich layer 2, and top layer metallic plate 1 adopts aluminium alloy plate or steel alloy laminate, its thickness range be 0.2 ?1mm, the thickness range of fiber enhanced foam sandwich layer 2 be 0.5 ?5mm; Fiber enhanced foam sandwich layer 2 is arranged between double layer of metal plate 1, and wherein fiber enhanced foam sandwich layer 2 is by double helix fiber 3 with foam matrix 4 is compound forms; The porous resin material that foam matrix 4 is filled for hollow glass micro-ball (diameter range be 2 ?120 μ m), the double helix fiber 3 of filling obtains by fibrage or Filament-wound Machine for natural plant fibre or copper fiber.Double helix fiber 3 be filled to orderly or unordered filling, double helix fiber 3 loadings account for fiber enhanced foam sandwich layer 2 cumulative volumes 10% ?40%, the length of double helix fiber 3 be 0.5 ?10mm.In mass fraction, the raw material of foam matrix 4 is by hollow glass micro-ball (diameter 2 ?120 μ m, the density 0.15g/cm of 1 part of E44 ?6101 epoxy resin (Guangzhou Dongfeng Chemical Industrial Co., Ltd. of manufacturer), 0.3～2 part of EP type epoxy curing agent (polyamine, Guangzhou Dongfeng Chemical Industrial Co., Ltd. of manufacturer), 0.003 part of BYK ?A530 silicone defoaming agent (German Bi Ke) and 0～1 part of T15 series
3, Sinosteel Maanshan Institute of Mining Research Co., Ltd. of manufacturer) form; During preparation, fiber enhanced foam sandwich layer 2 is poured into after the raw material of foam matrix 4 is uniformly mixed after solidifying in the mould that arranges in advance double helix fiber 3 and obtained.Between top layer metallic plate 1 and fiber enhanced foam sandwich layer 2, by adhesive, bond.
Fig. 2 is the manufacture schematic diagram of double helix fiber, and the two ends of two long fibers straights 5 that are arranged parallel to each other are separately fixed on rotatable fixture 6 and stationary fixture 7, rotates the some circles of rotatable fixture 6 and can make two Filament-wound Machines obtain double helix fiber 3.Fig. 3 is the three-dimensional structure schematic diagram of the double helix fiber after winding.
During work, double helix fiber enhanced foam laminate is subject to extraneous bending load, the interfacial shearing stress of foam matrix and double helix fiber increases, but due to the distinctive space structure of double helix fiber 3 improved widely double helix fiber 3 and foam matrix between mechanical lock make a concerted effort, double helix fiber 3 and foam matrix are not easy to occur break-off, thereby reduced the destruction of laminate, improved the performance of laminate.
Below verify by experiment the enhancing effect of the interface bond strength of 3 pairs of foam matrixes of double helix fiber 4 and fiber.The bond strength at the interface of 3 pairs of foam matrixes 4 of double helix fiber can be pulled out experiment by ultimate fibre and be measured, and by interface shear strength, τ characterizes.
Wherein, F
maxfor the maximum, force in the process of pulling out, the section girth that c is fiber, L is that fiber is embedded in the degree of depth in matrix.
Fig. 4 is that diameter is the double helix copper fiber 3 of 0.25mm and the interface bond strength comparison diagram of the straight copper fiber of same diameter under foam matrix 4; In mass fraction, foam matrix 4 is by hollow glass micro-ball (diameter 2 ?120 μ m, the density 0.15g/cm of 1 part of E44 ?6101 epoxy resin (Guangzhou Dongfeng Chemical Industrial Co., Ltd. of manufacturer), 2 parts of EP type epoxy curing agents (polyamine, Guangzhou Dongfeng Chemical Industrial Co., Ltd. of manufacturer), 0.003 part of BYK ?A530 silicone defoaming agent (German Bi Ke) and 0.33 part of T15 series
3, Sinosteel Maanshan Institute of Mining Research Co., Ltd. of manufacturer) and interface bond strength comparison diagram under the foam matrix that mixes, every kind of sample number is 5.As can be seen from Figure 4 due to the distinctive space structure of double helix fiber, the mechanical lock having improved between fiber and matrix is made a concerted effort, and makes double helix fiber interface bond strength improve 7.1% than fibers straight.Interfacial combined function between matrix and fiber has determined the whole mechanical property of fibre reinforced composites.Fiber enhanced foam material, especially the fiber enhanced foam material of high porosity, its lower interface bond strength makes it that de-combination in interface occur prematurely when bearing extraneous bending load, cause laminate to lose efficacy, and the double helix fibre structure of patent of the present invention can improve the interface bond strength of fiber enhanced foam material effectively, thus the overall mechanical property of raising laminate.
Claims (6)
1. a double helix fiber enhanced foam laminate, is mainly comprised of top layer metallic plate and fiber enhanced foam sandwich layer, and fiber enhanced foam sandwich layer is arranged between double layer of metal plate; It is characterized in that, the thickness of described top layer metallic plate is (0.2 ?1) mm, and the thickness of fiber enhanced foam sandwich layer is (0.5 ?5) mm; Described fiber enhanced foam sandwich layer is by double helix fiber and foam matrix is compound forms; Foam matrix is the porous resin material that hollow glass micro-ball is filled; Described double helix fiber is that natural plant fibre, nylon or copper fiber obtain by fibrage or Filament-wound Machine; Double helix fiber-filled amount account for fiber enhanced foam sandwich layer cumulative volume 10% ?40%, the length of described double helix fiber be 0.5 ?10mm; Described fiber enhanced foam sandwich layer obtains after pouring into after the raw material of foam matrix is uniformly mixed and solidifying in the mould that arranges in advance double helix fiber.
2. double helix fiber enhanced foam laminate according to claim 1, is characterized in that, described top layer metallic plate adopts aluminium alloy plate or steel alloy laminate.
3. double helix fiber enhanced foam laminate according to claim 1, is characterized in that, the diameter of described hollow glass micro-ball is (2 ?120) μ m.
4. double helix fiber enhanced foam laminate according to claim 1, is characterized in that, described double helix fiber 3 be filled to orderly or unordered filling.
5. double helix fiber enhanced foam laminate according to claim 1, it is characterized in that, in mass fraction, the raw material of described foam matrix by 1 part of E44 ?6101 epoxy resin, 0.3～2 part of polyamine EP type epoxy curing agent, 0.003 part of BYK ?the hollow glass micro-ball of A530 silicone defoaming agent and 0～1 part of T15 series form.
6. double helix fiber enhanced foam laminate according to claim 1, is characterized in that, between described top layer metallic plate and fiber enhanced foam sandwich layer, by adhesive, bonds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410333922.4A CN104149400B (en) | 2014-07-14 | 2014-07-14 | A kind of Double helix fiber enhanced foam laminate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410333922.4A CN104149400B (en) | 2014-07-14 | 2014-07-14 | A kind of Double helix fiber enhanced foam laminate |
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| CN104149400A true CN104149400A (en) | 2014-11-19 |
| CN104149400B CN104149400B (en) | 2016-10-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177282A1 (en) * | 2017-03-27 | 2018-10-04 | 西交利物浦大学 | Spiral fiber |
| CN110042980A (en) * | 2019-05-07 | 2019-07-23 | 解玉梅 | A kind of energy-conserving plate material and preparation method thereof for construction wall |
| CN113334867A (en) * | 2021-05-18 | 2021-09-03 | 中国石油大学(北京) | Metal foam composite material and preparation method thereof |
| CN115230276A (en) * | 2022-08-06 | 2022-10-25 | 蔡志强 | PP/EVA composite packaging sheet and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021589A (en) * | 1976-04-28 | 1977-05-03 | Emerson & Cuming, Inc. | Buoyancy materials |
| CN103203905A (en) * | 2012-01-12 | 2013-07-17 | 通用电气公司 | Fiber composite assembly and process of fabricating a fiber composite assembly |
| CN103707590A (en) * | 2013-12-26 | 2014-04-09 | 青岛海洋新材料科技有限公司 | Buoyancy material with composite sandwich damping structure and preparation technology of material |
| CN204136498U (en) * | 2014-07-14 | 2015-02-04 | 华南理工大学 | A kind of double helix fiber enhanced foam laminate |
-
2014
- 2014-07-14 CN CN201410333922.4A patent/CN104149400B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021589A (en) * | 1976-04-28 | 1977-05-03 | Emerson & Cuming, Inc. | Buoyancy materials |
| CN103203905A (en) * | 2012-01-12 | 2013-07-17 | 通用电气公司 | Fiber composite assembly and process of fabricating a fiber composite assembly |
| CN103707590A (en) * | 2013-12-26 | 2014-04-09 | 青岛海洋新材料科技有限公司 | Buoyancy material with composite sandwich damping structure and preparation technology of material |
| CN204136498U (en) * | 2014-07-14 | 2015-02-04 | 华南理工大学 | A kind of double helix fiber enhanced foam laminate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177282A1 (en) * | 2017-03-27 | 2018-10-04 | 西交利物浦大学 | Spiral fiber |
| CN110042980A (en) * | 2019-05-07 | 2019-07-23 | 解玉梅 | A kind of energy-conserving plate material and preparation method thereof for construction wall |
| CN113334867A (en) * | 2021-05-18 | 2021-09-03 | 中国石油大学(北京) | Metal foam composite material and preparation method thereof |
| CN115230276A (en) * | 2022-08-06 | 2022-10-25 | 蔡志强 | PP/EVA composite packaging sheet and preparation method thereof |
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| Publication number | Publication date |
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| CN104149400B (en) | 2016-10-05 |
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