CN1746072A - Rowing with superfine fibre and its formation - Google Patents
Rowing with superfine fibre and its formation Download PDFInfo
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- CN1746072A CN1746072A CN 200510060252 CN200510060252A CN1746072A CN 1746072 A CN1746072 A CN 1746072A CN 200510060252 CN200510060252 CN 200510060252 CN 200510060252 A CN200510060252 A CN 200510060252A CN 1746072 A CN1746072 A CN 1746072A
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- pbo
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Abstract
A super-fibrous racing boat has a sandwich structure composed of the external and internal jackets prepared from the pre-dipped poly-p-phenylene benzobisthiazole (PBO) super-fibers and the sandwich prepared from the cellular material Nomex. Its advantages are high specific strength, high specific modulus, high impact strength, high rigidity and light weight.
Description
Technical field
The present invention relates to a kind of Olympic sports sports equipment, especially relate to a kind of rowing with superfine fibre and forming process thereof.
Background technology
Racing boat is a gold medal rich and influential family project of large-scale sports campaigns such as the Olympic Games.Because the particularity of environment for use and race, racing boat should have superior performance, and its strength-to-density ratio, specific modulus and impact strength require may be consistent with aerospace flight vehicle.Present racing boat mostly is the sandwich construction of aramid fiber/carbon fiber and Nomex honeycomb greatly, limit by material capability and forming process, its integrated performance index still is on the low side, still can not satisfy the high standard and the high request of Olympic Games equipment " lighter, stronger, faster ", exists following defective and deficiency:
(1) contradiction of ship body rigidity and airship quality is difficult to solve.Be subjected to the restriction of existing material, structure and forming process, be difficult to reach satisfactory to both parties neat U.S. of ship body rigidity and airship quality.
(2) ship body impact strength is poor.The racing boat of especially full carbon fiber honeycomb structure is being transported, is being deposited, in the training and competition process, colliding with slightly and will damage; And the racing boat of this material lacks necessary movement flexible sense.
(3) the easy moisture absorption weightening finish of hull.Used under the normal condition 1～2 year, hull promptly increases weight 10% more than; Simultaneously, moisture can reduce the rigidity of ship body greatly for a long time to the erosion of hull composite structure, and therefore also have a greatly reduced quality the service life of racing boat.
(4) forming process falls behind.Present composite material racing boat mostly is extensive wet therapy forming process manufacturing, and this method is subjected to the disturbing influence of season, weather and factor such as artificial very big, makes ship body quality be difficult to control, is difficult to realize the standardized production of racing boat; In addition, easily produce in the production and lose glue and kiss-coating phenomenon, will cause the racing boat unstable properties.
(5) operating environment pollution and labor strength are big.Owing to be wet construction, need on-the-spot preparation glue, blanking and the construction of shop layer, work-yard, forming mould, equipment tool and workman on one's body unavoidably can be by resin and other various waste pollutions, can't realize safety, civilized construction and guarantee workman's physical and mental health.
Summary of the invention
For overcoming above-mentioned deficiency of the prior art, the invention provides a kind of rowing with superfine fibre and forming process thereof.
The present invention mainly solves the problems referred to above by following technical proposals:
A kind of rowing with superfine fibre, comprise the sandwich construction of forming by inside panel and exterior skin and Nomex cellular material, described inside panel and exterior skin all adopt Poly-p-phenylene benzobisthiazole (Poly-p-phenylene benzobisthiazole is called for short the PBO super fiber) prepreg to make.The bonding position of described inside and outside covering and Nomex cellular sandwich is solidified the back by glued membrane and is formed the glue knurl.
The present invention adopts advanced dry-press process technology, is specially:
A, prefabricated prepreg.The purpose made pre-soaked resin is uniformly coated on the PBO super fiber fabric, is prefabricated into PBO super fiber prepreg.The pre-soaked resin massfraction is 0.3 in this prepreg, and PBO super fiber massfraction is 0.7; Its curing system is: 90 ℃ of solidification temperatures, and cure time 3h need not post-processing, and gradient of temperature speed is 2 ℃/min.Effective storage life is 2 months under this prepreg normal temperature, and effective storage life is 6 months under 0～5 ℃ cryogenic conditions.
B, the bonding glued membrane of prefabricated honeycomb.Purpose made glued membrane resin is rolled into membrane-like; The curing system of this glued membrane is consistent with PBO super fiber prepreg with storage requirement.
C, the planar dimension that launches according to exterior skin in the racing boat are to the accurate cutting blanking of PBO super fiber prepreg, cellular sandwich and bonding glued membrane.
D, the moulding of employing conventional vacuum pressure bag method.Respectively in the former on ship shell and deck, press the basic order paving of PBO super fiber prepreg (exterior skin)-glued membrane-cellular sandwich-glued membrane-PBO super fiber prepreg (inside panel), utilize vacuum negative pressure that the end face of interior exterior skin and cellular sandwich is tightly fitted, press the regulation intensification one curing molding of curing system then.
Adopt technique scheme to the beneficial effect that the present invention brings to be: the structure of racing boat is improved and is simplified.Utilize the excellent mechanical property of PBO super fiber self, make strength-to-density ratio, specific modulus and the impact strength of racing boat be much higher than the aramid fiber of wet therapy forming process moulding/carbon fiber honeycomb structure racing boat, reach the perfect condition that ship body rigidity increases substantially, airship quality is not overweight and ship shell impact strength obviously improves; The hydroscopicity of PBO rowing with superfine fibre is also far below aramid fiber/carbon fiber racing boat, and its performance still can keep stablizing constant after the moisture absorption; Abandon original wet therapy forming process, adopt prepreg dry-press process explained hereafter, both simplified technology, and pollution and the big problem of labour intensity of having avoided former wet therapy forming process to bring; Owing to adopt the glued membrane cure process, the bonding position of inside and outside covering of ship shell and cellular sandwich material forms the glue knurl, has improved the bind strength and the toughness of cellular sandwich material and covering greatly.
Description of drawings
Accompanying drawing 1 is a ship shell basic structure scheme drawing of the present invention;
Accompanying drawing 2 is node structure scheme drawings that the A portion of Fig. 1 amplifies.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
Referring to Fig. 1, structure of the present invention is that Nomex cellular sandwich 1 inner end surface 2 and outer face 3 are bonded with inside panel 4 and exterior skin 5 respectively, inside and outside covering all adopts purpose made PBO super fiber prepreg, forming glue knurl 6, in order to improve the bind strength and the toughness of cellular sandwich and covering with the bonding position of Nomex cellular sandwich.
The present invention adopts dry-press process technology, calculates comparatively accurately when not only having realized design, and can effectively control various raw-material quality in blanking and molding construction process, reaches the control to the final finished standard quality then; And pollution-free substantially generation in processes such as blanking, shop layer and curing.The racing boat integral structure is realized the one curing molding, has realized normalisation and the construction that civilises, and guarantees the High Performance of product and high-quality.
Should be pointed out that at last above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (3)
1. a rowing with superfine fibre is characterized in that: the inner end surface (2) of Nomex cellular sandwich (1) and outer face (3) and inside panel (4) and exterior skin (5) formation honeycomb sandwich structure; Described inside panel (4) and exterior skin (5) all adopt Poly-p-phenylene benzobisthiazole (Poly-p-phenylenebenzobisthiazole is called for short the PBO super fiber) prepreg moulding to make.
2. a kind of rowing with superfine fibre according to claim 1 is characterized in that described inside panel (4), exterior skin (5) solidify the back with the bonding position of Nomex cellular sandwich (1) by glued membrane and form glue knurl (6).
3. the forming process of a rowing with superfine fibre is characterized in that:
A, prefabricated prepreg
The purpose made pre-soaked resin is uniformly coated on the PBO super fiber fabric, is prefabricated into PBO super fiber prepreg, the pre-soaked resin massfraction is 0.3 in this prepreg, and PBO super fiber massfraction is 0.7;
This prepreg curing system is: 90 ℃ of solidification temperatures, and cure time 3h need not post-processing, and gradient of temperature speed is 2 ℃/min;
B, the bonding glued membrane of prefabricated honeycomb
Purpose made glued membrane resin is rolled into membrane-like; The curing system of this glued membrane is consistent with PBO super fiber prepreg with storage requirement;
C, the moulding of employing conventional vacuum pressure bag method
In ship shell and deck former, press the order paving of prepreg (exterior skin)-glued membrane-cellular sandwich-glued membrane-prepreg (inside panel) respectively, utilize vacuum negative pressure that the end face of interior exterior skin and cellular sandwich is tightly fitted, press curing system intensification curing molding then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060252 CN1746072A (en) | 2005-07-29 | 2005-07-29 | Rowing with superfine fibre and its formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060252 CN1746072A (en) | 2005-07-29 | 2005-07-29 | Rowing with superfine fibre and its formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1746072A true CN1746072A (en) | 2006-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510060252 Pending CN1746072A (en) | 2005-07-29 | 2005-07-29 | Rowing with superfine fibre and its formation |
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| CN (1) | CN1746072A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002851A (en) * | 2010-11-23 | 2011-04-06 | 哈尔滨工业大学 | PBO (Poly-p-phenylenebenzobisoxazazole) fiber fabric ship with super buoyancy and preparation method thereof |
| CN102019996A (en) * | 2010-11-23 | 2011-04-20 | 哈尔滨工业大学 | Preparation method for extra hydrophobic carbon fabric boat |
| CN102094324A (en) * | 2010-11-23 | 2011-06-15 | 哈尔滨工业大学 | Method for preparing super-hydrophobic carbon fiber fabric |
| CN102476475A (en) * | 2010-11-30 | 2012-05-30 | 辽宁杰事杰新材料有限公司 | Honeycomb-structure sheet material having fiber-reinforced thermoplastic skin and preparation method thereof |
| CN102717866A (en) * | 2012-05-29 | 2012-10-10 | 深圳市海斯比船艇科技股份有限公司 | Anti-wear composite material hull and forming process thereof |
| CN102886965A (en) * | 2012-10-25 | 2013-01-23 | 溧阳二十八所系统装备有限公司 | Manufacture method of paper honeycomb deck |
| CN102963493A (en) * | 2012-12-07 | 2013-03-13 | 山东大学 | Composite plastic boat body and compression molding method thereof |
| CN104494165A (en) * | 2014-11-19 | 2015-04-08 | 杭州千岛湖培生船艇有限公司 | Semi-soft die used for assisting racing boat moulding and one shot forming technology for racing boat |
| CN108790213A (en) * | 2018-05-23 | 2018-11-13 | 浙江大丰轨道交通装备有限公司 | The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb |
| CN110027294A (en) * | 2019-03-13 | 2019-07-19 | 成都飞机工业（集团）有限责任公司 | A kind of composite panel adhering method |
| CN113400669A (en) * | 2021-05-27 | 2021-09-17 | 航天辰马(宁波)新材料有限公司 | Manufacturing method of high-energy-absorption honeycomb panel for lightning-proof vehicle floor |
-
2005
- 2005-07-29 CN CN 200510060252 patent/CN1746072A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002851A (en) * | 2010-11-23 | 2011-04-06 | 哈尔滨工业大学 | PBO (Poly-p-phenylenebenzobisoxazazole) fiber fabric ship with super buoyancy and preparation method thereof |
| CN102019996A (en) * | 2010-11-23 | 2011-04-20 | 哈尔滨工业大学 | Preparation method for extra hydrophobic carbon fabric boat |
| CN102094324A (en) * | 2010-11-23 | 2011-06-15 | 哈尔滨工业大学 | Method for preparing super-hydrophobic carbon fiber fabric |
| CN102476475B (en) * | 2010-11-30 | 2015-06-17 | 辽宁辽杰科技有限公司 | Honeycomb-structure sheet material having fiber-reinforced thermoplastic skin and preparation method thereof |
| CN102476475A (en) * | 2010-11-30 | 2012-05-30 | 辽宁杰事杰新材料有限公司 | Honeycomb-structure sheet material having fiber-reinforced thermoplastic skin and preparation method thereof |
| CN102717866A (en) * | 2012-05-29 | 2012-10-10 | 深圳市海斯比船艇科技股份有限公司 | Anti-wear composite material hull and forming process thereof |
| CN102717866B (en) * | 2012-05-29 | 2015-04-08 | 深圳市海斯比船艇科技股份有限公司 | Anti-wear composite material hull and forming process thereof |
| CN102886965A (en) * | 2012-10-25 | 2013-01-23 | 溧阳二十八所系统装备有限公司 | Manufacture method of paper honeycomb deck |
| CN102963493A (en) * | 2012-12-07 | 2013-03-13 | 山东大学 | Composite plastic boat body and compression molding method thereof |
| CN102963493B (en) * | 2012-12-07 | 2015-07-08 | 山东大学 | Composite plastic boat body and compression molding method thereof |
| CN104494165A (en) * | 2014-11-19 | 2015-04-08 | 杭州千岛湖培生船艇有限公司 | Semi-soft die used for assisting racing boat moulding and one shot forming technology for racing boat |
| CN108790213A (en) * | 2018-05-23 | 2018-11-13 | 浙江大丰轨道交通装备有限公司 | The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb |
| CN110027294A (en) * | 2019-03-13 | 2019-07-19 | 成都飞机工业（集团）有限责任公司 | A kind of composite panel adhering method |
| CN113400669A (en) * | 2021-05-27 | 2021-09-17 | 航天辰马(宁波)新材料有限公司 | Manufacturing method of high-energy-absorption honeycomb panel for lightning-proof vehicle floor |
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