CN207549618U - A kind of lightweight, impact resistant composite material sandwich structure part - Google Patents
A kind of lightweight, impact resistant composite material sandwich structure part Download PDFInfo
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- CN207549618U CN207549618U CN201721618433.9U CN201721618433U CN207549618U CN 207549618 U CN207549618 U CN 207549618U CN 201721618433 U CN201721618433 U CN 201721618433U CN 207549618 U CN207549618 U CN 207549618U
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- composite material
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- structure part
- sandwich structure
- impact resistant
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Abstract
The utility model is related to a kind of lightweight, impact resistant composite material sandwich structure part, including outer panels, inner panel and the foam sandwich construction between the outer panels and the inner panel；Wherein, the outer panels enhance thermosetting resin panel for superhigh molecular weight polyethylene fibers/carbon fiber blended fabric；The inner panel enhances thermoplastic resin panel for continuous glass fibre.Shuffling fiber reinforcement thermosetting composite material, fiber reinforced thermolplastic composite material, foam core are combined by the utility model, propose the strong sandwich structure part of a kind of novel lightweight, shock resistance, anti-fatigue performance is good, damping, sound absorption, heat-proof quality are good, recyclable, environmentally friendly, can be applied to the fields such as body of a motor car, ship deck, hatch door, high ferro baffle.
Description
Technical field
The utility model is related to technical field of composite materials more particularly to a kind of lightweight, impact resistant composite material sandwiches
Structural member.
Background technology
Composite Sandwich structure is typically as panel, thicker and small density material conduct by relatively thin plank
Fuse.Such as honeycomb sandwich structure, foam sandwich construction, cork wood sandwich structure.It is, in general, that panel is good using mechanical property
Material, and the wick support of low-density enables panel preferably to keep elastic stability when meeting with stresses between panel.
By reasonably being selected new material, it can assign sandwich structure high bending stiffness, sound-absorbing, endurance is heat-insulated etc. excellent
Performance, therefore be widely used.
Traditional Composite Sandwich structural panel is formed based on homogenous material system using splicing or co-curing.
Homogenous material system can not meet the requirements such as mechanical property, physical property, environment in many occasions.And upper and lower panel is mostly whole
Using thermosetting resin, facilitate monolithic molding and good mechanical properties after heat cure, but it is bigger than normal there are density and be not easily recycled
The defects of.CN107310216A discloses a kind of chopped ramie fiber/carbon fiber/thermoplastic polymer composite material plate, is sandwich
Structure is made of upper and lower surface layer and intermediate core layer hot pressing；Although recyclable degradable, mechanical property is less than thermosetting property
Resin material, using limited.Foam core is usually bonded with upper and lower panel by structural adhesive in the prior art, shock resistance
It is insufficient.Therefore it needs to design a kind of Novel lightweight, impact resistant composite material sandwich structure part, to expand Composite Sandwich knot
The application field of structure.
Utility model content
In view of one of problems of the prior art, the purpose of this utility model are to provide a kind of lightweight, anti-impact
Composite Sandwich structural member is hit, including outer panels, inner panel and the foam between the outer panels and the inner panel
Sandwich structure；Wherein, the outer panels enhance thermosetting resin face for superhigh molecular weight polyethylene fibers/carbon fiber blended fabric
Plate；The inner panel enhances thermoplastic resin panel for continuous glass fibre.
Superhigh molecular weight polyethylene fibers (UHMWPE) have low intensity height, density, good impact resistance, low temperature resistant, resistance toization
The advantages that learning wear-resistant burn into, insulation, but its nonpolar molecule chain inertia is big, it is difficult to the resin system containing polar group
With reference to the good bonding interface of acquisition.Carbon fiber is with intensity is high, modulus is high, rigidity is good, small, resistance to without creep, coefficient of thermal expansion
The advantages that fatigability is good, but its shock resistance, toughness are poor, and cost is higher.Using superhigh molecular weight polyethylene fibers and carbon
Fiber blended fabric enhancing same with thermosetting compound material can effectively combine the advantages of two kinds of fibers, make product quality is lighter, cost more
Low, shock resistance is more preferable, improves the interface performance of material.The utility model combines superhigh molecular weight polyethylene fibers/carbon
Fiber blended fabric enhancing the excellent in cushion effect of aathermoset resin system composite laminated plate, light weight, anti-fatigue performance
The light weight of the advantages that good and fiberglass reinforced thermoplastic resin body composite material laminate, damping, sound absorption, heat-proof quality be good,
The advantages that recyclable, environmentally friendly.
" comprising " described in the utility model, it is intended that it can also include other structures in addition to the structure, these other
Structure assigns the sandwich structure part different characteristics.In addition to this, " comprising " described in the utility model, may be replaced by
Enclosed " for " or " by ... form ".
Preferably, the foam sandwich construction is selected from polyvinyl chloride (PVC) foam core or polyurethane (PU) foam core.
The performances such as the high bending stiffness of structural member, light quality, good sound insulation, heat-insulated are assigned using PVC or PU foam sandwich constructions.
Preferably, the outer panels are laminated in thermosetting property tree by superhigh molecular weight polyethylene fibers/carbon fiber blended fabric
It is formed in fat panel.
Preferably, the outer panels include the thermosetting property of superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing
Epoxy resin panel or the thermosetting ethylene alkenyl resin panel of superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing.
Preferably, the inner panel includes continuous glass fibre enhancing thermoplastic polyethylene's panel or continuous glass fibre increases
Heat-flash plasticity polypropylene panels.
Preferably, the thickness of the outer panels is 2mm~10mm.
Preferably, the thickness of the inner panel is 2mm~10mm.
Preferably, the thickness of the foam sandwich construction is 8mm~20mm.
Preferably, elastic glue-line is further included between the inner panel and the foam sandwich construction.Institute in the utility model
State outer panels and foam sandwich construction can first use liquid molding (VARI) or resin transfer moulding (RTM) technique it is integrated into
Type forms complex；The complex is combined again with inner panel using elastic adhesive.
Select elastic gluing dosage form into elastic glue-line realize bonding between inner panel and complex, further enhance
The impact resistance of material reduces the internal stress caused by material thermal expansion coefficient difference, reduces due to material electricity
Galvano-cautery caused by potential difference difference.It can be widely applied to impact resistances, the environment such as body of a motor car, ship deck, hatch door, high ferro baffle
Adaptable occasion.
Preferably, the thickness of the elastic glue-line is 2~5mm.
Compared with prior art, the utility model at least has the advantages that：
1. the utility model is by shuffling fiber reinforcement thermosetting composite material, fiber reinforced thermolplastic composite material, foam
Sandwich is combined, it is proposed that the strong sandwich structure part of a kind of novel lightweight, shock resistance, compared to traditional sandwich structure
More than 43% part loss of weight, maximum impact force improve more than 38%, and impact fracture energy Ea improves more than 23%.Impact flexibility index D I
It reduces, illustrates that material stiffness is significantly increased.Anti-fatigue performance is good, damping, sound absorption, heat-proof quality are good, recyclable, environmentally friendly, can
Applied to fields such as body of a motor car, ship deck, hatch door, high ferro baffles.
2. elastic glue-line realize it is bonding between inner panel and complex, further enhance material impact resistance,
It reduces the internal stress caused by material thermal expansion coefficient difference, reduce since electricity is rotten caused by material potential difference difference
Erosion.It can be widely applied to the strong occasion of impact resistances, the environmental suitability such as body of a motor car, ship deck, hatch door, high ferro baffle.
Description of the drawings
Fig. 1 is the structure diagram of sandwich structure part in the utility model embodiment 1；
Fig. 2 is the structure diagram of 1 mesocomplex of the utility model embodiment；
Fig. 3 is the structure diagram of sandwich structure part in the utility model embodiment 2
The mark in the figure shows：1st, 6- outer panels, 2,7- inner panels, 3,8- foam cores, 4- complexs, 5- elasticity glue-lines
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is but following
Embodiment be only the utility model simple example, not represent or limit the utility model rights protection scope, this
The protection domain of utility model is subject to claims.
Embodiment 1
The strong sandwich structure part of a kind of Novel lightweight, shock resistance is by the outer panels 1 of thick 2mm, the inner panel of thick 2mm
The foam core 3 of 2, thick 8mm are formed.
Outer panels 1 are laminated by the thermosetting epoxy resin of superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing
Plate is formed, and superhigh molecular weight polyethylene fibers/carbon fiber blended fabric is laminated in thermosetting resin panel, and outer panels 1 are located at
Structure outermost layer.Inner panel 2 is made of continuous glass fibre enhancing thermoplastic polyethylene's laminate, positioned at structure innermost layer.Bubble
Foam sandwich 3 is PVC foam cores, positioned at structure middle layer.
Fig. 2 is the complex 4 that 1 and froth foam sandwich 3 are pulled in the outside manufactured using VARI manufacturing process；Above-mentioned folder
The elastic glue-line 5 of thick 2mm is further included between cored structure part mesocomplex 4 and inner panel 2.
Embodiment 2
As described in Figure 2, the strong sandwich structure part of a kind of Novel lightweight, shock resistance is by the outer panels 6 of thick 10mm, thickness
The inner panel 7 of 10mm, the foam core 8 of thick 20mm are formed.
The thermosetting ethylene alkenyl resin layer that outer panels 6 are enhanced by superhigh molecular weight polyethylene fibers/carbon fiber blended fabric
Plywood is formed, and superhigh molecular weight polyethylene fibers/carbon fiber blended fabric is laminated in thermosetting resin panel, outer panels 6
In structure outermost layer.Inner panel 7 is made of continuous glass fibre enhancing thermoplastic polypropylene laminate, positioned at structure innermost layer.
Foam core 8 is PU foam cores, positioned at structure middle layer.
Embodiment 3
The strong sandwich structure part of a kind of Novel lightweight, shock resistance is by the outer panels of thick 4mm, the inner panel of thick 6mm,
The foam core of thick 12mm is formed.
Outer panels are closed by the thermosetting ethylene alkenyl resin layer of superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing
Plate is formed, and superhigh molecular weight polyethylene fibers/carbon fiber blended fabric is laminated in thermosetting resin panel, and outer panels are located at knot
Structure outermost layer.Inner panel is made of continuous glass fibre enhancing thermoplastic polypropylene laminate, positioned at structure innermost layer.Foam presss from both sides
Core is PU foam cores, positioned at structure middle layer.The elastic glue-line of thick 5mm is further included between foam core and inner panel.
Embodiment 4
The strong sandwich structure part of a kind of Novel lightweight, shock resistance is by the outer panels of thick 7mm, the inner panel of thick 5mm,
The foam core of thick 16mm is formed.
Outer panels are closed by the thermosetting ethylene alkenyl resin layer of superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing
Plate is formed, and superhigh molecular weight polyethylene fibers/carbon fiber blended fabric is laminated in thermosetting resin panel, and outer panels are located at knot
Structure outermost layer.Inner panel is made of continuous glass fibre enhancing thermoplastic polypropylene laminate, positioned at structure innermost layer.Foam presss from both sides
Core is PU foam cores, positioned at structure middle layer.The elastic glue-line of thick 3mm is further included between foam core and inner panel.
Comparative example 1
Hot pressing glass fiber reinforcement sandwich structure structural member, outer panels, inner panel are continuous glass fibre enhancing thermoplasticity
Polyethylene layer plywood.
Impact property test is carried out according to ASTM D 7136/D to the sample of embodiment and comparative example 1.5kg punches are always
It is freely fallen from the height of 1m along sliding rail, removes the influence of frictional force, air drag etc., fallen on by the punch that sensor measures flat
Initial impact speed v on plate sample0For 4.45m/s.E0Represent punch just with the effective impact energy of maximum of sample contacts, value
It is fixed as 49.53J.Test result is as follows：
The sandwich parts of embodiment 1 improve 38% than 1 loss of weight 43% of comparative example, maximum impact force, and impact fracture energy Ea is carried
It is high by 23%, illustrate that shock resistance significantly improves.Impact flexibility index D I is reduced, and illustrates that material stiffness is significantly increased.With reality
Apply example 1 similarly, the sandwich parts performance of embodiment 2~3 is obviously improved compared with comparative example 1, and details are not described herein.
Table 1
| Sample | Embodiment 1 | Comparative example 1 |
| Density (kg/m2) | 2.95 | 5.18 |
| Maximum impact force (N) | 7995.17 | 5793.47 |
| Impact fracture energy Ea (J) | 182.64 | 132.34 |
| Impact flexibility index D I | 1.01 | 1.40 |
Applicant states that the utility model illustrates the detailed process equipment of the utility model and work by above-described embodiment
Skill flow, but the utility model is not limited to above-mentioned detailed process equipment and technological process, that is, does not mean that the utility model
Having to rely on above-mentioned detailed process equipment and technological process could implement.Person of ordinary skill in the field is it will be clearly understood that right
Any improvement of the utility model, the adding of equivalence replacement and auxiliary element to each raw material of the utility model product, specific side
Selection of formula etc. is all fallen within the scope of protection of the utility model and the open scope.
Claims (10)
1. a kind of lightweight, impact resistant composite material sandwich structure part, which is characterized in that including outer panels, inner panel and be located at
Foam sandwich construction between the outer panels and the inner panel；Wherein, the outer panels are fine for ultra-high molecular weight polyethylene
Dimension/carbon fiber blended fabric enhancing thermosetting resin panel；The inner panel enhances thermoplastic resin face for continuous glass fibre
Plate.
2. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the foam folder
Cored structure is selected from polyvinyl chloride foam sandwich or polyurethane foam sandwich.
3. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the outer panels
It is laminated in thermosetting resin panel and is formed by superhigh molecular weight polyethylene fibers/carbon fiber blended fabric.
4. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the outer panels
Thermosetting epoxy resin panel or super high molecular weight including superhigh molecular weight polyethylene fibers/carbon fiber blended fabric enhancing gather
The thermosetting ethylene alkenyl resin panel of vinyl fiber/carbon fiber blended fabric enhancing.
5. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the inner panel
Enhance thermoplastic polyethylene's panel or continuous glass fibre enhancing thermoplastic polypropylene panel including continuous glass fibre.
6. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the outer panels
Thickness be 2mm~10mm.
7. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the inner panel
Thickness be 2mm~10mm.
8. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the foam folder
The thickness of cored structure is 8mm~20mm.
9. lightweight as described in claim 1, impact resistant composite material sandwich structure part, which is characterized in that the inner panel
Elastic glue-line is further included between the foam sandwich construction.
10. lightweight as claimed in claim 9, impact resistant composite material sandwich structure part, the thickness of the elasticity glue-line is 2
~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618433.9U CN207549618U (en) | 2017-11-28 | 2017-11-28 | A kind of lightweight, impact resistant composite material sandwich structure part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618433.9U CN207549618U (en) | 2017-11-28 | 2017-11-28 | A kind of lightweight, impact resistant composite material sandwich structure part |
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| CN207549618U true CN207549618U (en) | 2018-06-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094581A (en) * | 2018-08-28 | 2018-12-28 | 中车工业研究院有限公司 | A kind of high-speed train equipment ceiling skirtboard and preparation method thereof |
| CN110356058A (en) * | 2019-06-25 | 2019-10-22 | 中车工业研究院有限公司 | A kind of impact resistance high-speed trains cabin composite bottom board and its preparation method and application |
| CN111791545A (en) * | 2020-06-03 | 2020-10-20 | 中国人民解放军海军工程大学 | Composite material superstructure bulkhead for ship and preparation method thereof |
| CN115476561A (en) * | 2022-09-23 | 2022-12-16 | 歌尔科技有限公司 | Fiber composite material, housing, and electronic device |
-
2017
- 2017-11-28 CN CN201721618433.9U patent/CN207549618U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094581A (en) * | 2018-08-28 | 2018-12-28 | 中车工业研究院有限公司 | A kind of high-speed train equipment ceiling skirtboard and preparation method thereof |
| CN109094581B (en) * | 2018-08-28 | 2019-11-26 | 中车工业研究院有限公司 | A kind of high-speed train equipment ceiling skirtboard and preparation method thereof |
| CN110356058A (en) * | 2019-06-25 | 2019-10-22 | 中车工业研究院有限公司 | A kind of impact resistance high-speed trains cabin composite bottom board and its preparation method and application |
| CN111791545A (en) * | 2020-06-03 | 2020-10-20 | 中国人民解放军海军工程大学 | Composite material superstructure bulkhead for ship and preparation method thereof |
| CN111791545B (en) * | 2020-06-03 | 2022-08-30 | 中国人民解放军海军工程大学 | Composite material superstructure bulkhead for ship and preparation method thereof |
| CN115476561A (en) * | 2022-09-23 | 2022-12-16 | 歌尔科技有限公司 | Fiber composite material, housing, and electronic device |
| CN115476561B (en) * | 2022-09-23 | 2023-09-29 | 歌尔科技有限公司 | Fiber composite material, housing, and electronic device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201207 Address after: Room 203, type D-1 R & D center, 2 / F, building 10, yard 1, Wuliqiao 1st Street, Chaoyang District, Beijing 100024 Patentee after: Beijing Weiya special decoration technology Co., Ltd Address before: 101400 Beijing city Huairou District Yanqi Yanqi Economic Development Zone West Road No. 13 Building No. 2 hospital Patentee before: BEIJING WEIYA HIGH PERFORMANCE FIBER Co.,Ltd. |