CN104742460A - Passenger car floor of sandwich structure - Google Patents
Passenger car floor of sandwich structure Download PDFInfo
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- CN104742460A CN104742460A CN201510176215.3A CN201510176215A CN104742460A CN 104742460 A CN104742460 A CN 104742460A CN 201510176215 A CN201510176215 A CN 201510176215A CN 104742460 A CN104742460 A CN 104742460A
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Abstract
The invention belongs to the technical field of composite materials, and discloses a passenger car floor of a sandwich structure. The passenger car floor of the sandwich structure is provided with a surface layer (2), a core layer (1) and a surface layer (2) which are arranged from top to bottom; the surface layer (2) is a glass fiber fabric reinforced resin-based composite material layer with the thickness of 0.5-2.5mm and the density of 1800-2200kg/m<3>; the core layer (1) is formed by combining a reinforcement formed by a fiber, or a fiber fabric, or a compound of the fiber and the fiber fabric, and a base body which is hard polyester foam obtained by foaming polyethylene resin; the core layer (1) has the thickness of 7-20mm, and the density of 200-500kg/m<3>. The passenger car floor has sufficient mechanical performance, installation reliability and excellent medium resistance, the pressing resistance and light weight of the passenger car floor are guaranteed, and meanwhile the effects of temperature preservation, sound insulation and noise reduction are achieved.
Description
Technical field
The invention belongs to technical field of composite materials, relate generally to technical field of automotive trim, be specifically related to a kind of bus deck of sandwich structure.
Background technology
As main load parts, the floor compartment desired strength of passenger vehicle is high, from heavy and light, shock-resistant, wear-resistant, long service life, good looking appearance, and along with the development of national economy, people require more and more higher to the comfortableness of in-trips vehicles.In addition, vehicle frequently can be subject to the effect of alternate load and the impact of the uncertain factor such as vibration, impact in the process of moving, these all to passenger car floor of new generation safety, environmental protection and energy-conservation in propose more strict requirement, and the development strategy of the advanced automobile material technology of taking as the leading factor with lightweight-alleviate passenger vehicle complete vehicle quality is the major measure of realizing this goal.
The lightweight of passenger vehicle, is exactly under the guarantee intensity of passenger vehicle and the prerequisite of security performance, reduces the kerb weight of automobile as much as possible, thus improve the dynamic property of automobile, reduce fuel consumption, reduce exhaust pollution.According to data, if vehicle complete vehicle weight reduces by 10%, fuel efficiency can improve 6% ~ 8%; Automobile kerb weight often reduces 100kg, and fuel consumption per hundred kilometers can reduce by 0.3 ~ 0.6L; Vehicle weight reduces by 1%, and oil consumption can reduce by 0.7%.Current, due to environmental protection and energy-conservation needs, the lightweight of automobile has become the trend of world car development.
At present, domestic bus deck mostly adopts the water-proof slab that one deck about 2mm that first to mat formation on base plate skeleton is thick, and then the bamboo-wood floor that about the 14mm that mats formation is thick, finally removes from office at bamboo-wood floor upper berth installed floor.Bamboo-wood floor, from great, reduces fuel economy.In use, easily there is the problems such as softening, layering, corrosion under wet environment, buckling deformation can be produced in dry environment, cause flooring laminate off.Offset plate and base plate skeleton, offset plate and bamboo-wood floor, bamboo-wood floor and flooring laminate employ a large amount of solvent-based adhesives in installation process, and the Small molecular such as benzene, formaldehyde of constantly release volatilization, can damage the health of human body of passenger.
In addition, Some Domestic bus deck adopts PVC or aluminium honeycomb sandwich structure.Though this kind of structure Be very effective in loss of weight, PVC material is hydraulic performance decline at low temperatures, there is the danger of easy brittle failure; There is significant problem in aluminium honeycomb sandwich structure, need carry out specially treated to screw installation position in installation process, enough nail power to ensure.
Therefore, consider that the public transport field of China's fast development is to requirements such as material lightweight, the feature of environmental protection, securities, present bus deck can't meet instructions for use completely.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is the bus deck proposing a kind of sandwich structure.
For achieving the above object, the present invention adopts following technical scheme:
A bus deck for sandwich structure, described bus deck has the surface layer, core and the surface layer that arrange from top to bottom; Described surface layer is that glass fabric strengthens polymer matrix composites layer, and it is reinforcement with glass fabric that described glass fabric strengthens polymer matrix composites layer, is that matrix is composited with resin; The thickness that described glass fabric strengthens polymer matrix composites layer is 0.5 ~ 2.5mm, and density is 1800 ~ 2200kg/m
3; It is 40 ~ 80% that described glass fabric strengthens glass fabric mass fraction in polymer matrix composites layer, and the glass fabric that described glass fabric strengthens polymer matrix composites layer is glass fibre woven roving, glass fibre forging line cloth, glass fibre plain, the glass fibre compound of one or more biaxially in cloth; The resin of described glass fabric enhancing polymer matrix composites layer is the compound of one or more in unsaturated polyester resin, vinylite, epoxy resin, polyurethane resin; Described core by the compound of fiber or fabric or fiber and fabric as reinforcement, with the hard polyurethane foams of polyurethane resin foaming for matrix is composited; The thickness of described core is 7 ~ 20mm, and density is 200 ~ 500kg/m
3; In described core, the mass fraction of the compound of fiber or fabric or fiber and fabric is 30 ~ 60%; Fiber described in core is the compound of one or more in carbon fiber, glass fibre, basalt fibre, aramid fiber; Fabric described in core is the compound of one or more in carbon fibre fabric, glass fabric, basalt fibre fabrics, aramid fabric; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, the thickness of bus deck described in sandwich structure is 8 ~ 25mm, density p=400 ~ 800kg/m
3, buckling strength S
l>=50Mpa, buckling modulus G
l>=5.5Gpa, transverse bending strength S
t>=20Mpa, nail-holding ability F>=2000 N.
The bus deck of a kind of sandwich structure that the present invention proposes, adopt the sandwich structure that core is set between layer glass fiber reinforced resin based composites layer, adopt glass fabric to strengthen polymer matrix composites as surface layer, make bus deck have enough mechanical properties, installation reliability and excellent resistance to medium; Adopt by the compound of fiber or fabric or fiber and fabric as reinforcement, the composite be composited for matrix using the hard polyurethane foams of polyurethane resin foaming is as core, ensure that compressive property and the lightweight of bus deck, the effect of insulation, sound insulation and noise reduction can be played simultaneously; Solve short, shortage of resources in bamboo/wood plywood square service life, the shortcomings such as aluminum honeycombfloor complex forming technology, nail-holding ability difference and PVC foam low temperature easy fracture, linear expansion coefficient are large, are convenient to installation and maintenance.If replace now using bus deck, huge economic benefit and environmental benefit will be produced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, core; 2, surface layer.
Detailed description of the invention
Illustrate that the present invention will be further described in detail with detailed description of the invention below in conjunction with accompanying drawing.
embodiment one:
As shown in Figure 1, a kind of bus deck of sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer 2 is 0.5mm, and density is 1900kg/m
3; It is 58% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 500kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 45%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 1 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 640 |
| Buckling strength | MPa | 92.5 |
| Buckling modulus | MPa | 8.1 |
| Transverse bending strength | GPa | 80.3 |
| Nail-holding ability | N | 2038 |
embodiment two:
A bus deck for sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer 2 is 0.5mm, and density is 1920kg/m
3; It is 52% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 480kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 51%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 2 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 645.6 |
| Buckling strength | MPa | 119.4 |
| Buckling modulus | MPa | 10.5 |
| Transverse bending strength | GPa | 89.5 |
| Nail-holding ability | N | 2460 |
embodiment three:
A bus deck for sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer 2 is 0.5mm, and density is 2016kg/m
3; It is 66% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 497kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 51%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 3 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 639.3 |
| Buckling strength | MPa | 92.5 |
| Buckling modulus | MPa | 8.1 |
| Transverse bending strength | GPa | 29.4 |
| Nail-holding ability | N | 2460 |
Claims (1)
1. a bus deck for sandwich structure, described bus deck has the surface layer (2), core (1) and the surface layer (2) that arrange from top to bottom; It is characterized in that: described surface layer (2) is glass fabric enhancing polymer matrix composites layer, and it is reinforcement with glass fabric that described glass fabric strengthens polymer matrix composites layer, is that matrix is composited with resin; The thickness that described glass fabric strengthens polymer matrix composites layer is 0.5 ~ 2.5mm, and density is 1800 ~ 2200kg/m
3; It is 40 ~ 80% that described glass fabric strengthens glass fabric mass fraction in polymer matrix composites layer, and the glass fabric that described glass fabric strengthens polymer matrix composites layer is glass fibre woven roving, glass fibre forging line cloth, glass fibre plain, the glass fibre compound of one or more biaxially in cloth; The resin of described glass fabric enhancing polymer matrix composites layer is the compound of one or more in unsaturated polyester resin, vinylite, epoxy resin, polyurethane resin; Described core (1) by the compound of fiber or fabric or fiber and fabric as reinforcement, with the hard polyurethane foams of polyurethane resin foaming for matrix is composited; The thickness of described core (1) is 7 ~ 20mm, and density is 200 ~ 500kg/m
3; In described core (1), the mass fraction of the compound of fiber or fabric or fiber and fabric is 30 ~ 60%; Fiber described in core (1) is the compound of one or more in carbon fiber, glass fibre, basalt fibre, aramid fiber; Fabric described in core (1) is the compound of one or more in carbon fibre fabric, glass fabric, basalt fibre fabrics, aramid fabric; Described glass fabric enhancing polymer matrix composites layer, core (1), glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, the thickness of bus deck described in sandwich structure is 8 ~ 25mm, density p=400 ~ 800kg/m
3, buckling strength S
l>=50Mpa, buckling modulus G
l>=5.5Gpa, transverse bending strength S
t>=20Mpa, nail-holding ability F>=2000 N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176215.3A CN104742460A (en) | 2015-04-15 | 2015-04-15 | Passenger car floor of sandwich structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176215.3A CN104742460A (en) | 2015-04-15 | 2015-04-15 | Passenger car floor of sandwich structure |
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| CN104742460A true CN104742460A (en) | 2015-07-01 |
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|---|---|---|---|
| CN201510176215.3A Pending CN104742460A (en) | 2015-04-15 | 2015-04-15 | Passenger car floor of sandwich structure |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960581A (en) * | 2015-07-20 | 2015-10-07 | 奇瑞汽车股份有限公司 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
| CN105922685A (en) * | 2016-05-04 | 2016-09-07 | 浙江华江科技股份有限公司 | Renewable thermoplastic compound board for high-strength environment-friendly bus floor and preparing method thereof |
| CN106337508A (en) * | 2016-08-24 | 2017-01-18 | 湖南大学 | Basalt fiber reinforced foam base composite heat-preservation layer and producing method thereof |
| CN106394576A (en) * | 2016-08-30 | 2017-02-15 | 济南大学 | Composite interior wallboard with sandwich hollow fabric and preparation method of composite interior wallboard |
| CN106476356A (en) * | 2016-12-13 | 2017-03-08 | 长春博超汽车零部件股份有限公司 | A kind of flaxen fiber strengthens Rigid foam polyurethane and preparation method thereof |
| WO2017101490A1 (en) * | 2015-12-16 | 2017-06-22 | 上海晋飞新材料科技有限公司 | Process for manufacturing apron plate of high-speed rail equipment cabin using composite material |
| CN107128374A (en) * | 2017-04-17 | 2017-09-05 | 郑州精益达汽车零部件有限公司 | It is a kind of to be used for passenger-car roof skirtboard and the sandwich composite on floor |
| CN107856379A (en) * | 2017-10-17 | 2018-03-30 | 浙江石金玄武岩纤维股份有限公司 | A kind of basalt fibre enhancing phenolic aldehyde sandwich composite board and its moulding process |
| CN108883794A (en) * | 2015-09-25 | 2018-11-23 | 铃木株式会社 | floor panel for vehicle |
| CN109398389A (en) * | 2017-08-16 | 2019-03-01 | 上海杰事杰新材料(集团)股份有限公司 | A kind of fire retardant, anticorrosive floor and preparation method thereof |
| WO2019154276A1 (en) * | 2018-02-09 | 2019-08-15 | 南通中集翌科新材料开发有限公司 | Floor board, and method and apparatus for manufacturing same |
| CN110171490A (en) * | 2019-02-28 | 2019-08-27 | 山东中瑞德电动汽车有限公司 | A kind of new-energy automobile composite material modularization body structural member |
| CN113183386A (en) * | 2021-04-13 | 2021-07-30 | 山西凝固力新型材料股份有限公司 | High-compression-resistance fiber-reinforced polyurethane composite board and preparation method thereof |
| WO2021227145A1 (en) * | 2019-10-15 | 2021-11-18 | 龙钟江 | Polyurethane composite floor and fabrication process therefor |
| CN114228277A (en) * | 2021-10-18 | 2022-03-25 | 长春城际轨道客车配件有限公司 | Composite material floor for railway passenger car |
| CN114348123A (en) * | 2022-01-30 | 2022-04-15 | 重庆长安汽车股份有限公司 | Integrated middle and rear floor and vehicle |
| CN114474566A (en) * | 2022-01-07 | 2022-05-13 | 同济大学 | Plant fiber composite floor and preparation method thereof |
| CN116812318A (en) * | 2023-08-24 | 2023-09-29 | 河南新飞电器集团有限公司 | Remove thing networking constant temperature aviation railway carriage or compartment |
-
2015
- 2015-04-15 CN CN201510176215.3A patent/CN104742460A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960581A (en) * | 2015-07-20 | 2015-10-07 | 奇瑞汽车股份有限公司 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
| CN108883794B (en) * | 2015-09-25 | 2021-04-16 | 铃木株式会社 | Floor panel for vehicle |
| CN108883794A (en) * | 2015-09-25 | 2018-11-23 | 铃木株式会社 | floor panel for vehicle |
| WO2017101490A1 (en) * | 2015-12-16 | 2017-06-22 | 上海晋飞新材料科技有限公司 | Process for manufacturing apron plate of high-speed rail equipment cabin using composite material |
| CN105922685B (en) * | 2016-05-04 | 2018-01-02 | 浙江华江科技股份有限公司 | A kind of reproducible high-strength environment-friendly bus deck plastic composite board material and preparation method thereof |
| CN105922685A (en) * | 2016-05-04 | 2016-09-07 | 浙江华江科技股份有限公司 | Renewable thermoplastic compound board for high-strength environment-friendly bus floor and preparing method thereof |
| CN106337508A (en) * | 2016-08-24 | 2017-01-18 | 湖南大学 | Basalt fiber reinforced foam base composite heat-preservation layer and producing method thereof |
| CN106394576A (en) * | 2016-08-30 | 2017-02-15 | 济南大学 | Composite interior wallboard with sandwich hollow fabric and preparation method of composite interior wallboard |
| CN106394576B (en) * | 2016-08-30 | 2019-08-06 | 济南大学 | A kind of sandwich hollow fabric composite interior wallboard and preparation method thereof |
| CN106476356A (en) * | 2016-12-13 | 2017-03-08 | 长春博超汽车零部件股份有限公司 | A kind of flaxen fiber strengthens Rigid foam polyurethane and preparation method thereof |
| CN107128374A (en) * | 2017-04-17 | 2017-09-05 | 郑州精益达汽车零部件有限公司 | It is a kind of to be used for passenger-car roof skirtboard and the sandwich composite on floor |
| CN109398389A (en) * | 2017-08-16 | 2019-03-01 | 上海杰事杰新材料(集团)股份有限公司 | A kind of fire retardant, anticorrosive floor and preparation method thereof |
| CN107856379A (en) * | 2017-10-17 | 2018-03-30 | 浙江石金玄武岩纤维股份有限公司 | A kind of basalt fibre enhancing phenolic aldehyde sandwich composite board and its moulding process |
| WO2019154276A1 (en) * | 2018-02-09 | 2019-08-15 | 南通中集翌科新材料开发有限公司 | Floor board, and method and apparatus for manufacturing same |
| US11634911B2 (en) | 2018-02-09 | 2023-04-25 | Nantong Cimc Eco New Material Development Co., Ltd | Floor board |
| CN110171490A (en) * | 2019-02-28 | 2019-08-27 | 山东中瑞德电动汽车有限公司 | A kind of new-energy automobile composite material modularization body structural member |
| WO2021227145A1 (en) * | 2019-10-15 | 2021-11-18 | 龙钟江 | Polyurethane composite floor and fabrication process therefor |
| GB2609377A (en) * | 2019-10-15 | 2023-02-01 | Long Zhongjiang | Polyurethane composite floor and fabrication process therefor |
| CN113183386A (en) * | 2021-04-13 | 2021-07-30 | 山西凝固力新型材料股份有限公司 | High-compression-resistance fiber-reinforced polyurethane composite board and preparation method thereof |
| CN114228277A (en) * | 2021-10-18 | 2022-03-25 | 长春城际轨道客车配件有限公司 | Composite material floor for railway passenger car |
| CN114474566A (en) * | 2022-01-07 | 2022-05-13 | 同济大学 | Plant fiber composite floor and preparation method thereof |
| CN114348123A (en) * | 2022-01-30 | 2022-04-15 | 重庆长安汽车股份有限公司 | Integrated middle and rear floor and vehicle |
| CN114348123B (en) * | 2022-01-30 | 2024-05-28 | 重庆长安汽车股份有限公司 | Integrated middle-rear floor and vehicle |
| CN116812318A (en) * | 2023-08-24 | 2023-09-29 | 河南新飞电器集团有限公司 | Remove thing networking constant temperature aviation railway carriage or compartment |
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