CN202878813U - Composite material sandwich structure containing bamboo transition layer - Google Patents

Composite material sandwich structure containing bamboo transition layer Download PDF

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Publication number
CN202878813U
CN202878813U CN201220450788.2U CN201220450788U CN202878813U CN 202878813 U CN202878813 U CN 202878813U CN 201220450788 U CN201220450788 U CN 201220450788U CN 202878813 U CN202878813 U CN 202878813U
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China
Prior art keywords
bamboo
composite material
transition zone
bamboo wood
core
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Expired - Fee Related
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CN201220450788.2U
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Chinese (zh)
Inventor
刘伟庆
齐玉军
方海
张富宾
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201220450788.2U priority Critical patent/CN202878813U/en
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Abstract

The utility model discloses a composite material sandwich structure who contains bamboo timber transition layer, including composite material panel, bamboo timber transition layer, core and composite material web, be provided with the core between the upper panel of composite material panel and the lower panel, the upper surface or the lower surface of core are equipped with the bamboo timber transition layer, be equipped with the composite material web in the core. The utility model discloses can improve traditional sandwich structure atress performance, have bear the weight of advantages such as dynamic height, with low costs, power consumption low and environmental friendly, can extensively use widely.

Description

A kind of composite material sandwich structure that contains the bamboo wood transition zone
Technical field
The utility model relates to a kind of composite material sandwich structure, relate in particular to a kind of composite material sandwich structure that adopts bamboo wood composite core material to make, can be widely used in specifically loading than the advanced composite material (ACM) sandwich beam, plate, the mould component that contain the bamboo wood transition zone of large part in building construction, bridge structure, Marine engineering and the Vehicle Engineering.
Background technology
Composite material sandwich structure is comprised of upper and lower panel and core three parts usually, wherein upper and lower panel mainly adopts fibre reinforced composites to make, core adopts the light materials such as honeycomb, foam or cork wood to make, upper and lower panel and core are undertaken bonding by resin, common resins comprises unsaturated polyester resin, vinylite, epoxy resin and phenolic resins etc.The characteristics such as this composite material sandwich structure high-strength light, good corrosion resistance, designability are strong, all be widely used in fields such as military installations, defence engineering, vehicle, naval vessel, building, bridges, adopt composite material sandwich structure to make naval vessel member, train and motorbus compartment, container, chemical storage tank etc. such as developed country, in building and bridge structure, can be used for floorings, roof boarding, building template, airport temporary backing, Light Pontoon Bridge etc.
At present, composite material sandwich structure commonly used plays mould is lower, compression strength is less material as core mainly with cork wood and foam etc., cause composite material sandwich structure that core conquassation destruction, panel failure by shear, interface delaminating damage in use often occur, can not effectively bring into play the tensile strength of panel fiber.In addition, developing rapidly along with China's foam industry in recent years, the structural foam of high-strength light also begins the core as composite material sandwich structure gradually, can solve to a certain extent the problems referred to above of composite material sandwich structure, but its expensive being difficult to is widely applied in engineering.Therefore, seeking the sandwich material of development of new, is the active demand that composite material sandwich structure further develops application, and bamboo wood then is a kind of so desirable sandwich material.
The advantages such as bamboo wood has that intensity is high, abrasion resistance good, aboundresources and fast growth are paid close attention to gradually and are used.Since 20 century 70s, the research and production of China's artificial bamboo board has a great development.The artificial bamboo board that present China has gone into operation has bamboo mat plywood, bamboo plywood, bamboo laminated board, bamboo mat or curtain and ply-bamboo, bamboo fibreboard and bamboo shaving board etc., has extensive application at aspects such as building, automobile, train, containers.Existing various artificial bamboo board can be the raw material source that composite material sandwich structure provides a large amount of high-qualitys.In addition, bamboo wood is natural fiber material, has low energy consumption, eco-friendly characteristics in manufacturing process, is a kind of green material, so applying of bamboo wood has good environment-friendly advantage.
The utility model content
The purpose of this utility model is the characteristics that core conquassation destruction, panel failure by shear and interface delaminating damage easily occur for existing composite material sandwich structure, a kind of novel advanced composite material (ACM) sandwich that contains the bamboo wood transition zone is provided, can improve the conventional interlayer structure tension performance, have that bearing capacity is high, cost is low, the low and advantages of environment protection of power consumption, can extensively promote the use of.
The technical solution adopted in the utility model is: a kind of composite material sandwich structure that contains the bamboo wood transition zone, comprise composite material face, bamboo wood transition zone, core and composite web, be provided with core between the top panel of described composite material face and the lower panel, the upper surface of described core is provided with the composite web or/and lower surface is provided with the bamboo wood transition zone in the described core.
As preferably, described composite material face adopts fiber and resin to make, and described fiber is at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre; Described resin is at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.
As preferably, described bamboo wood transition zone is at least a in bamboo mat plywood, bamboo plywood, bamboo laminated board, bamboo mat or curtain and ply-bamboo, bamboo fibreboard and the bamboo shaving board.
As preferably, described bamboo wood transition zone adopts single berth if the mode of paved in multi-layers, bamboo fibre laying direction be vertically lay, laterally laying and at least a in three kinds of situations of two-way laying in length and breadth.
As preferably, offer porose and groove on the described bamboo wood transition zone, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.
As preferably, described core comprises at least a in polyurethane foam, polyvinyl chloride foam, carbon foam, PEI foam and PMI foam, Balsa wood, paulownia wood, China fir or the strong core felt.
As preferably, offer porose and groove on the described core, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.
As preferably, described composite web adopts fiber and resin to make, and described fiber is at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre; Described resin is at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.
As preferably, described composite web is for running through the bamboo wood transition zone or not running through the bamboo wood transition zone.
The utility model bamboo matter core has higher partial pressing ability and perpendicular to the shearing strength of machine direction, and its elastic modelling quantity is between panel and common light-weight filler, transition zone as panel and common core, interfacial stress can be effectively reduced poor, thereby avoid composite material sandwich structure that above-mentioned failure mode occurs, give full play to the tensile strength of panel, improve the bearing capacity of composite material sandwich structure.
Beneficial effect: the utility model has the following advantages compared to existing technology:
1, the advanced composite material (ACM) sandwich that contains the bamboo wood transition zone of the present utility model is compared with present other composite material sandwich structures, interfacial stress can be effectively reduced poor, thereby effectively avoid composite material sandwich structure generation core conquassation destruction, panel failure by shear and interface delaminating damage, give full play to the tensile strength of panel;
2, the advanced composite material (ACM) sandwich that contains the bamboo wood transition zone of the present utility model is compared with present other composite material sandwich structures, bamboo wood has higher tensile strength, in the situation that design load is certain, can effectively reduce the FRP consumption, reduce the composite material sandwich structure cost;
3, the advanced composite material (ACM) sandwich that contains the bamboo wood transition zone of the present utility model is compared with present other composite material sandwich structures, and bamboo wood is natural fiber material, has low energy consumption, eco-friendly characteristics in manufacturing process, is a kind of green material.
Description of drawings
Fig. 1 is a kind of structural representation of composite material interlayer of the present utility model;
Fig. 2 is composite material interlayer the second structural representation of the present utility model;
Fig. 3 is the utility model embodiment 1 schematic diagram;
Fig. 4 is the utility model embodiment 2 schematic diagrames;
Fig. 5 is the utility model embodiment 3 schematic diagrames.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
As illustrated in fig. 1 and 2: a kind of composite material sandwich structure that contains the bamboo wood transition zone comprises composite material face 1, bamboo wood transition zone 2, core 3 and composite web 4.Be provided with core 3 between the top panel of described composite material face 1 and the lower panel, the upper surface of described core 3 is provided with composite web 4 or/and lower surface is provided with bamboo wood transition zone 2 in the described core 3.Composite faces 1 adopts fiber and resin to make, this fiber selects at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre, resin to select at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.Bamboo wood transition zone 2 comprises at least a in bamboo mat plywood, bamboo plywood, bamboo laminated board, bamboo mat or curtain and ply-bamboo, bamboo fibreboard and the bamboo shaving board.Perforate on the described bamboo wood transition zone 2, fluting are to increase interfacial adhesion, and resin can circulate in the vacuum importing process to guarantee member.Core 3 is at least a in polyurethane foam, polyvinyl chloride foam, carbon foam, PEI foam and PMI foam, Balsa wood, paulownia wood, China fir or the strong core felt.Perforate on the described core 3, fluting are to increase interfacial adhesion, and resin can circulate in the vacuum importing process to guarantee member.Composite web 4 adopts fiber and resin to make, this fiber selects at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre, resin to select at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.
Embodiment 1
As shown in Figure 3, the advanced composite material (ACM) sandwich beam of bamboo wood transition zone of the present utility model, it comprises composite material face 1, bamboo wood transition zone 2, core 3 and composite web 4.Bamboo wood is selected bamboo mat plywood, lays respectively bamboo wood transition zone 2 on core 3 upper and lower surfaces, and bamboo wood adopts individual layer to lay, and its machine direction is along the beam length direction.The composite web divides in length and breadth to interlaced arrangement, and does not run through the bamboo fibre layer.Described bamboo wood is along the upper and lower surface of machine direction fluting, described bamboo wood and the perforate of panel vertical direction, described core surface fluting, described core and the perforate of panel vertical direction, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.This new structure beam quality is light, can be prefabricated in the factory, and can be fixed on the steel I-beam with connector, can be used for the quick-assembling floorings.
Embodiment 2
As shown in Figure 4, the advanced composite material (ACM) sandwich shell structure of bamboo wood transition zone of the present utility model, it comprises composite material face, bamboo wood transition zone and core.Bamboo wood is selected bamboo plywood, lays the bamboo wood transition zone at the core upper surface, and bamboo wood adopts paved in multi-layers, and its machine direction is along in length and breadth two-way laying of housing.The composite web divides in length and breadth to interlaced arrangement, and does not run through the bamboo fibre layer.Described bamboo wood is along the upper and lower surface of machine direction fluting, described bamboo wood and the perforate of panel vertical direction, described core surface fluting, described core and the perforate of panel vertical direction, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.This new structure housing can adopt the one-shot forming of vacuum introducing technology in factory, good integrity, and site operation adopts the mode of lifting, and speed of application is fast.
Embodiment 3
As shown in Figure 5, the advanced composite material (ACM) interlayer folded structure of bamboo wood transition zone of the present utility model, it comprises composite material face 1, bamboo wood transition zone 2, core 3 and composite web.Bamboo wood is selected bamboo mat plywood, lays bamboo wood transition zone 2 at core 3 upper surfaces, and bamboo wood adopts individual layer to lay, and its machine direction is along the plate length direction.The composite web divides in length and breadth to interlaced arrangement, and does not run through the bamboo fibre layer.Described bamboo wood is along the upper and lower surface of machine direction fluting, described bamboo wood and the perforate of panel vertical direction, described core surface fluting, described core and the perforate of panel vertical direction, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.This new structure plate adopts the fold-line-shaped structure, and the cross section bending rigidity is large, and bearing capacity is high, and quality is light, is prefabricated in the factory, and then is fixed on the steel I-beam with connector, and site operation is convenient.
Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each part all available prior art realized.

Claims (6)

1. composite material sandwich structure that contains the bamboo wood transition zone, it is characterized in that: comprise composite material face, bamboo wood transition zone, core and composite web, be provided with core between the top panel of described composite material face and the lower panel, the upper surface of described core is provided with the composite web or/and lower surface is provided with the bamboo wood transition zone in the described core.
2. a kind of composite material sandwich structure that contains the bamboo wood transition zone according to claim 1 is characterized in that: described bamboo wood transition zone is at least a in bamboo mat plywood, bamboo plywood, bamboo laminated board, bamboo mat or curtain and ply-bamboo, bamboo fibreboard and the bamboo shaving board.
3. a kind of composite material sandwich structure that contains the bamboo wood transition zone according to claim 1, it is characterized in that: described bamboo wood transition zone adopts single berth if the mode of paved in multi-layers, bamboo fibre laying direction be vertically lay, laterally laying and at least a in three kinds of situations of two-way laying in length and breadth.
4. a kind of composite material sandwich structure that contains the bamboo wood transition zone according to claim 1 is characterized in that: offer porose and groove on the described bamboo wood transition zone, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.
5. a kind of composite material sandwich structure that contains the bamboo wood transition zone according to claim 1 is characterized in that: offer porose and groove on the described core, to increase interfacial adhesion, resin can circulate in the vacuum importing process to guarantee member.
6. a kind of composite material sandwich structure that contains the bamboo wood transition zone according to claim 1, it is characterized in that: described composite web is for running through the bamboo wood transition zone or not running through the bamboo wood transition zone.
CN201220450788.2U 2012-09-06 2012-09-06 Composite material sandwich structure containing bamboo transition layer Expired - Fee Related CN202878813U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220450788.2U CN202878813U (en) 2012-09-06 2012-09-06 Composite material sandwich structure containing bamboo transition layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220450788.2U CN202878813U (en) 2012-09-06 2012-09-06 Composite material sandwich structure containing bamboo transition layer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220347988A1 (en) * 2016-01-11 2022-11-03 Usa As Represented By The Secretary Of The Army Composites

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220347988A1 (en) * 2016-01-11 2022-11-03 Usa As Represented By The Secretary Of The Army Composites

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130417

Termination date: 20170906