CN205705361U - A kind of process units of fibre reinforced thermoplastic composite - Google Patents
A kind of process units of fibre reinforced thermoplastic composite Download PDFInfo
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- CN205705361U CN205705361U CN201620128657.0U CN201620128657U CN205705361U CN 205705361 U CN205705361 U CN 205705361U CN 201620128657 U CN201620128657 U CN 201620128657U CN 205705361 U CN205705361 U CN 205705361U
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- carbon fiber
- thermoplastic composite
- fibre reinforced
- process units
- reinforced thermoplastic
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Abstract
The utility model discloses the process units of a kind of fibre reinforced thermoplastic composite, it includes the carbon fiber guide frame being sequentially connected, sub-wire system, disperses pre-heating system, molten resin fiber soaking system, trailer system, and is located at the resin feeding system of described molten resin fiber soaking system side.Sub-wire system includes carbon fiber sub-wire wrapping machine and sub-wire round roller；Dispersion pre-heating system includes pre-hot-rolling；Molten resin fiber soaking system includes spout roller, dip roll and pressure roller, spout roller has mouth die being parallel on its roll axial direction, dip roll is made up of multiple rollers, and multiple dip rolls are interspersed in the both sides of carbon fiber bundle, and pressure roller engages each other setting with a dip roll of rear end；Resin feeding system one end is provided with plastic outlet, and plastic outlet connects setting with the mouth die of spout roller.This device wetting velocity and wettability are high, and wetting efficiency is fast, and the thermoplastic composite produced has outstanding mechanical property and specific modulus, intensity is high, shaping efficiency is high.
Description
Technical field
This utility model relates to advanced composite material (ACM) technical field, particularly relate to a kind of have outstanding mechanical property and specific modulus, intensity is high, shaping efficiency is high, can be with the process units of the fibre reinforced thermoplastic composite of recycling.
Background technology
Carbon fiber is used high-temperature decomposition to make under the noble gas of 1000～3000 degree of high temperature by organic precursors fiber (such as viscose, polyacrylonitrile or Colophonium).Its result is that all elements beyond de-carbon is all removed.Carbon fiber is black, hard, it is that the most mass-produced current high-performance fiber has the highest specific strength and the fiber of the highest specific modulus, it it is the new material of a kind of excellent in mechanical performance, its proportion is less than the 1/4 of steel, but tensile strength is general all at more than 3500Mpa, is 7 ~ 9 times of steel, tensile modulus of elasticity is 23000 ~ 43000Mpa, is also higher than steel.The specific strength (i.e. the ratio of the intensity of material and its density) using the carbon fibre reinforced composite that carbon fiber and other materials be composited can reach more than 2000Mpa/ (g/cm), and the specific strength of A3 steel is only 59Mpa/ (g/ cm) left and right, its specific modulus is also high than steel.The specific strength of material is the highest, then member dead weight is the least, specific modulus is the highest, then the rigidity of component is the biggest, therefore carbon fiber reinforced composite is used to have the most excellent performance, having many application in fields such as wind-power electricity generation, Aero-Space, automobile, building, computer, space optics structures, being increasingly becoming modern high technology field has most a kind of composite of application prospect.
Carbon fibre reinforced composite presses matrix classification, main point of two big classes a: class is reinforcedathermoset matrices, such as common epoxy resin, unsaturated polyester resin；Another kind of is thermoplastic matrix, such as common nylon, polyethers ether ketone resin.This two classes matrix material has much different character.The molding of reinforcedathermoset matrices is that the change utilizing the chemical binding states such as the chemical reaction (reaction of building bridge) of resin, solidification realizes, and its process is irreversible.In contrast to this, thermoplastic matrix be utilize resin thawing, flow, cool down, the change of the physical state that solidifies realizes.The change of its physical state is reversible, and i.e. reshaping, processing are possible.
Thermosetting resin based composites is a kind of composite the most most studied, that apply the widest, most resins is used to remain this three big thermosetting resin of phenolic resin, unsaturated polyester cheese resin and epoxy resin in thermosetting resin based composites, owing to epoxy resin is good with wellability in carbon fiber recombination process, deformation is little, being resin first-selected in thermosetting carbon fibre composite, consumption is maximum.Owing to the solidification of thermosetting epoxy resin collective is to utilize chemical reaction, adding firming agent, resin and firming agent chemical reaction cross moulding, therefore this reaction needs a process, it is additionally irreversible, the shaping efficiency ratio determining this composite is relatively low, further, since solidification process is irreversible, therefore, the most recyclable, once existing defects in solidification process, can only scrap.Therefore, for high-performance fiber, lose the biggest.
In recent years, along with development and the continuous maturation of composite forming processing technology of high-performance high-temperature resistant thermoplastic resin, thermoplastic composite has become the most noticeable exploitation focus in field of compound material.Compare same with thermosetting compound material, and thermoplastic composite has higher fracture toughness, chemical-resistant resistance and a resistance to water, and thermoforming performance is good, productivity ratio is high, forming method is many, technique is simple, with short production cycle, and there is repeatedly machinability.Therefore the research and development of thermoplas tic resin composite is the heat subject of current developed country field of compound material research.
But, the most poor mechanical property of thermoplastic composite, intensity that the equipment that produces in prior art is produced are low, and specific modulus is low, and shaping efficiency is low so that it is production application is restricted.
Summary of the invention
This utility model is for above-mentioned the deficiencies in the prior art, provide the process units of a kind of fibre reinforced thermoplastic composite, the fibre reinforced thermoplastic composite that it is produced has outstanding mechanical property and specific modulus, intensity is high, shaping efficiency high, can be with recycling, can be with large-scale application in fields such as Aero-Space, automobile, medical apparatus and instruments, 3C are digital.
For solving problems of the prior art, the concrete technical scheme that this utility model uses is:
A kind of process units of fibre reinforced thermoplastic composite, it includes the carbon fiber guide frame being sequentially connected, sub-wire system, disperses pre-heating system, molten resin fiber soaking system, trailer system, and is located at the resin feeding system of described molten resin fiber soaking system side；Described sub-wire system includes carbon fiber sub-wire wrapping machine and the multiple sub-wire round rollers being dislocatedly distributed being sequentially connected therewith；Described dispersion pre-heating system includes pre-hot-rolling, and carbon fiber bundle is wrapped in outside pre-hot-rolling under certain cladding angle；Described molten resin fiber soaking system includes spout roller, dip roll and the pressure roller successively arranged, described spout roller has mouth die being parallel on its roll axial direction, carbon fiber bundle is scattered in below mouth die, described dip roll is made up of multiple rollers, the plurality of dip roll is interspersed in the both sides of carbon fiber bundle, the centre of described dip roll is provided with heater, and described pressure roller engages each other setting with a dip roll of rear end；Described resin feeding system one end is provided with plastic outlet, and described plastic outlet connects setting with the mouth die of spout roller.
Preferably scheme, described carbon fiber guide frame includes yarn cylinder, creel axle and the silk guide frame being located on creel axle, described yarn cylinder is located at outside creel axle, the two ends of described creel axle are provided with rubber sheet gasket and fixing nut, described silk guide frame is provided with thread eye, described thread eye be MGA(MGA be oil nylon a series) oil nylon6 chips thread eye.
Further preferred scheme, a diameter of 40mm of described yarn cylinder, a length of 100 ~ 400mm.
Further preferred scheme, is provided with bearing between described yarn cylinder and creel axle.
Further preferably scheme, is additionally provided with the attemperating unit for regulating preheating roll surface temperature in described dispersion pre-heating system.
Described resin feeding system includes barrel and is located at the cartridge heater of barrel bottom, and being provided with rotary screw in described cartridge heater, described rotary screw is rotated by the motor being located at cartridge heater one end, and described plastic outlet is located at the other end of cartridge heater.
Back lash between described pressure roller and dip roll is adjustable.
Described trailer system includes an initiative compression roller and two driven rollers, and carbon fiber bundle is wound on initiative compression roller.
The power resources of described trailer system are motor.
This utility model additionally provides the production method of a kind of foregoing fibre reinforced thermoplastic composite, and it comprises the following steps:
The wire vent from carbon fiber guide frame of S1, carbon fiber wire, and by regulation carbon fiber guide frame, control the resistance of carbon fiber reel yarn, make carbon fiber wire have certain pretension from carbon fiber guide frame the most afterwards；
S2, it is allowed to be uniformly dispersed by sub-wire system by the carbon fiber wire with certain pretension, and proper alignment becomes carbon fiber tape in uniform thickness；
S3, by carbon fiber tape by pre-hot-rolling, evaporate the moisture absorbed in the fiber of carbon fiber tape, carbon fiber tape be heated to certain temperature simultaneously；
S4, by TPU(Polyurethane Thermoplastic Elastomer rubber) plastic grain add extrusion injection machine, under the dual function of extrusion injection machine and dip roll, the carbon fiber silk ribbon after the preheating of preheated roller clamp-oned by the melted extruded injection machine of TPU resin, it is thus achieved that preliminary prepreg tape；
S5, prepreg tape, by cooling and polishing roll, make the prepreg tape of bending stretch；
S6, the prepreg tape being straightened enter the recovery system of prepreg, it is thus achieved that complete thermoplastics type's fibre reinforced TPU plastic sheet.
By using such scheme, compared with prior art, it has the technical effect that the process units of a kind of fibre reinforced thermoplastic composite of the present utility model
1, this utility model is by carrying out carbon fibre tow to disperse and preheat, and reduces the TPU resin penetration distance to carbon fiber bundle, substantially increases the wetting efficiency of carbon fiber.
2, use the pre-impregnation device of roll, do not damage the performance of carbon fiber bundle, and increase the resin penetration penetration to carbon fiber, add wetting velocity and wettability.
3, this utility model uses global design, Parameter adjustable, it is simple to the technique optimizing infiltration, meanwhile, conveniently carries out the compound research to other thermoplastics type's matrixes.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the process units of this utility model a kind of fibre reinforced thermoplastic composite；
Fig. 2 is the structural representation of the resin feeding system of the process units of this utility model a kind of fibre reinforced thermoplastic composite.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage of greater clarity, below in conjunction with instantiation and referring to the drawings, this utility model is further described.It should be understood that these describe the most exemplary, and it is not intended to limit scope of the present utility model.Additionally, in the following description, eliminate the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
This utility model provides a kind of novel thermoplastics type's carbon fibre reinforced composite for the weak point of existing heat curing-type carbon fibre reinforced composite, uses elastic polyurethane body rubber (being called for short TPU) to be combined with carbon fiber (carbon fiber).
TPU and the Combined Mining of the carbon fiber mode of melted pultrusion infiltration, use the round roller of difference arrangement, first the carbon fiber wire being entangled on reel is dispersed into marshalling fiber in uniform thickness band, reduce the distance of thermoplastics type's TPU resin penetration, by the pressure of molten resin film between motive force and the infiltration cylindrical roll of the extrusion injection machine of single screw rod by melted thermoplastics type's TPU resin penetration to fibre bundle, thermoplastics type's carbon fibre reinforcement that this programme is made, the least to filametntary damage, and the temperature-controllable heated, reduce the decomposition of TPU resin, various process parameters can be adjusted easily and regulate.Resin is the best with the wellability of fiber, and production efficiency is high.
Its concrete production method is:
The wire vent from carbon fiber guide frame of S1, carbon fiber wire, and by regulation carbon fiber guide frame, control the resistance of carbon fiber reel yarn, make carbon fiber wire have certain pretension from carbon fiber guide frame the most afterwards；
S2, it is allowed to be uniformly dispersed by sub-wire system by the carbon fiber wire with certain pretension, and proper alignment becomes carbon fiber tape in uniform thickness；
S3, by carbon fiber tape by pre-hot-rolling, evaporate the moisture absorbed in the fiber of carbon fiber tape, carbon fiber tape be heated to certain temperature simultaneously；
S4, by TPU(Polyurethane Thermoplastic Elastomer rubber) plastic grain add extrusion injection machine, under the dual function of extrusion injection machine and dip roll, the carbon fiber silk ribbon after the preheating of preheated roller clamp-oned by the melted extruded injection machine of TPU resin, it is thus achieved that preliminary prepreg tape；
S5, prepreg tape, by cooling and polishing roll, make the prepreg tape of bending stretch；
S6, the prepreg tape being straightened enter the recovery system of prepreg, it is thus achieved that complete thermoplastics type's fibre reinforced TPU plastic sheet.
This utility model additionally provides the process units of a kind of fibre reinforced thermoplastic composite, as depicted in figs. 1 and 2, it includes the carbon fiber guide frame being sequentially connected, sub-wire system 1, disperses pre-heating system 2, molten resin fiber soaking system 3, trailer system 4, and is located at the resin feeding system 5 of described molten resin fiber soaking system side.
Described sub-wire system 1 includes carbon fiber sub-wire wrapping machine and the multiple sub-wire round rollers 6 being dislocatedly distributed being sequentially connected therewith.
Described dispersion pre-heating system 2 includes pre-hot-rolling 7, and carbon fiber bundle is wrapped in outside pre-hot-rolling 7 under certain cladding angle, is additionally provided with the attemperating unit for regulating preheating roll surface temperature in described dispersion pre-heating system 2.
Described molten resin fiber soaking system 3 includes spout roller 8, dip roll 9 and the pressure roller 10 successively arranged, described spout roller 8 has mouth die being parallel on its roll axial direction, carbon fiber bundle is scattered in below mouth die, described dip roll 9 is made up of multiple rollers, the plurality of dip roll 9 is interspersed in the both sides of carbon fiber bundle, the centre of described dip roll 9 is provided with heater, and described pressure roller 10 and rear end dip roll 9 engage each other setting and back lash is adjustable.
Described trailer system 4 includes an initiative compression roller and two driven rollers, and carbon fiber bundle is wound on initiative compression roller.The power resources of described trailer system are motor.
Described resin feeding system 5 includes barrel 12 and is located at the cartridge heater 13 of barrel 12 bottom, it is provided with rotary screw 14 in described cartridge heater 13, described rotary screw 14 is rotated by the motor 15 being located at cartridge heater one end, the other end of described cartridge heater is provided with plastic outlet 11, and described plastic outlet 11 connects setting with the mouth die of spout roller 8.
Below the particular make-up of each system is described in detail:
(1), carbon fiber guide frame
The carbon fiber guide frame that this utility model uses uses beam barrel structure, and creel two ends have a pair concentric bearings to support, and bearing is fixed on axle, and the outer wall fixed yarn cylinder of bearing, the diameter 40mm of yarn cylinder, length is between 100 ~ 400mm.There are rubber sheet gasket and fixing nut in the two ends of creel axle, by adjusting the frictional force between rubber sheet gasket and nut, the resistance between axle and cylinder can be controlled, adjust speed and the pretension of fiber wire vent of yarn cylinder, also having silk guide frame on creel axle, thread eye is fixed in silk guide frame, and thread eye uses MGA oil nylon6 chips to process, this oil nylon6 chips has the effect of self-lubricating, it is ensured that wire vent smooth.
(2), sub-wire system
Sub-wire system of the present utility model uses commercially available carbon fiber sub-wire wrapping machine, and a branch of carbon fiber is dispersed into the most neat carbon fiber one-way band by different several round rollers by this sub-wire wrapping machine.
(3), dispersion pre-heating system
Dispersion pre-heating system is realized by a pre-hot-rolling, carbon fiber bundle passes through pre-hot-rolling under certain cladding angle, fiber is preheated, on the one hand the infiltration of TPU resin it is beneficial to, still further aspect can make the moisture evaporation that fiber surface absorbs, avoid during compound, form blibbing and reduce the wettability between resin and fiber, the surface temperature of pre-hot-rolling is adjustable by attemperating unit, make temperature constant a controlled scope, the highest meeting of temperature makes fiber surface impaired, the lowest heat effect to fibre bundle of temperature is inconspicuous, will be according to fiber and the fusing point of resin, after repeatedly adjusting, optimal preheating temperature is set.
(4), resin feeding system
Resin feeding system is the single-screw extruder of complete set, and extruder completes the process heating, pressurizeing, extrude by a machine barrel with a screw rod and spiral channel.TPU plastic granule enters cartridge heater by the upper barrel of cartridge heater one end, then by the other end of screw conveyer to cartridge heater, and outside heating and the interior-heat produced due to friction at plastics and screw rod, make plastics deliquescing and fusing and extrude.
(5), molten resin fiber soaking system
Molten resin fiber soaking system is mainly made up of spout roller, dip roll, pressure roller, this cover system is core apparatus prepared by whole composite, spout roller has mouth die in the direction being parallel to roller bearing, resin passes through extruder plastifying fusion, from spout roller die extrusion, having certain extrusion pressure from the resin melt of die extrusion, at this pressure, melt penetrates into the fibre bundle by mouth die.After infiltration by spout roller, the wettability of resin and fiber is it cannot be guaranteed that uniformly, it is understood that there may be starved or Fu Jiao district, and the content of resin is the most uneven, in order to overcome these defects, needs further to be infiltrated by dip roll.Dip roll is made up of multiple rollers, and centre has heater, preliminary pre-dipped fibre bundle to pass sequentially through multiple dip roll, impregnates carbon fiber bundle from both direction.Infiltrate completely fibre bundle finally by pressure roller, pressure roller engages each other with dip roll, it is that the fibre bundle upper and lower surface passed through is by 2 pressure, under the effect of the pressure, resin is made further to infiltrate with fiber, simultaneously work as squeezing the effect of mouth die, by the gap between regulation pressure roller and dip roll, it is also possible to adjust the content of resin in fiber.
(6), trailer system
Trailer system is made up of active two driven hold-down roller systems, fiber is wound into drive roll and fastens, and the power of traction is mainly derived from motor.
Its operation principle is as follows: controlled the resistance of carbon fiber reel yarn by regulation carbon fiber guide frame, carbon fiber wire is made to have certain pretension the most afterwards from guide frame, then uniform dispersion is obtained by dispersion roller system, it is arranged in neat carbon carbon fiber tape in uniform thickness, carbon fiber tape passes through pre-hot-rolling, evaporate the moisture absorbed in fiber, simultaneously carbon fiber heating to certain temperature, then by molten resin fiber soaking system, under the dual function of extrusion injection machine and dip roll, melted TPU resin is squeezed into carbon fiber silk ribbon, obtain preliminary preimpregnation, then by cooling and polishing roll, the preliminary prepreg tape of bending is stretched, recovery system subsequently into prepreg, obtain complete thermoplastics type's fibre reinforced TPU plastic sheet.
The foregoing is only preferred embodiment of the present utility model; not in order to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment, the equivalent made, be all contained in protection domain of the present utility model within.
Claims (9)
1. the process units of a fibre reinforced thermoplastic composite, it is characterized in that, it includes the carbon fiber guide frame being sequentially connected, sub-wire system, disperses pre-heating system, molten resin fiber soaking system, trailer system, and is located at the resin feeding system of described molten resin fiber soaking system side；Described sub-wire system includes carbon fiber sub-wire wrapping machine and the multiple sub-wire round rollers being dislocatedly distributed being sequentially connected therewith；Described dispersion pre-heating system includes pre-hot-rolling, and carbon fiber bundle is wrapped in outside pre-hot-rolling under certain cladding angle；Described molten resin fiber soaking system includes spout roller, dip roll and the pressure roller successively arranged, described spout roller has mouth die being parallel on its roll axial direction, carbon fiber bundle is scattered in below mouth die, described dip roll is made up of multiple rollers, the plurality of dip roll is interspersed in the both sides of carbon fiber bundle, the centre of described dip roll is provided with heater, and described pressure roller engages each other setting with a dip roll of rear end；Described resin feeding system one end is provided with plastic outlet, and described plastic outlet connects setting with the mouth die of spout roller.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterized in that: described carbon fiber guide frame includes yarn cylinder, creel axle and the silk guide frame being located on creel axle, described yarn cylinder is located at outside creel axle, the two ends of described creel axle are provided with rubber sheet gasket and fixing nut, described silk guide frame is provided with thread eye, and described thread eye is oil nylon6 chips thread eye.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 2, it is characterised in that: a diameter of 40mm of described yarn cylinder, a length of 100 ~ 400mm.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 2, it is characterised in that: it is provided with bearing between described yarn cylinder and creel axle.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterised in that: it is additionally provided with the attemperating unit for regulating preheating roll surface temperature in described dispersion pre-heating system.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterized in that: described resin feeding system includes barrel and is located at the cartridge heater of barrel bottom, it is provided with rotary screw in described cartridge heater, described rotary screw is rotated by the motor being located at cartridge heater one end, and described plastic outlet is located at the other end of cartridge heater.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterised in that: the back lash between described pressure roller and dip roll is adjustable.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterised in that: described trailer system includes an initiative compression roller and two driven rollers, and carbon fiber bundle is wound on initiative compression roller.
The process units of a kind of fibre reinforced thermoplastic composite the most according to claim 1, it is characterised in that: the power resources of described trailer system are motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620128657.0U CN205705361U (en) | 2016-02-19 | 2016-02-19 | A kind of process units of fibre reinforced thermoplastic composite |
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| CN201620128657.0U CN205705361U (en) | 2016-02-19 | 2016-02-19 | A kind of process units of fibre reinforced thermoplastic composite |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097436A (en) * | 2016-02-19 | 2017-08-29 | 上海杉华复合材料科技有限公司 | The production method and process units of a kind of fibre reinforced thermoplastic composite |
| CN108297302A (en) * | 2017-04-25 | 2018-07-20 | 航天特种材料及工艺技术研究所 | A kind of gumming device and method preparing 3D printing consumptive material |
| CN109927206A (en) * | 2019-04-25 | 2019-06-25 | 深圳市银宝山新科技股份有限公司 | Fiber drawing-in device and fiber feed system |
| CN110482932A (en) * | 2019-09-06 | 2019-11-22 | 大同新成新材料股份有限公司 | A kind of preparation method and preparation facilities of carbon felt cement composite material |
| CN114311401A (en) * | 2022-01-11 | 2022-04-12 | 北京航空航天大学宁波创新研究院 | Manufacturing device of resin-based long fiber composite preimpregnation yarn |
-
2016
- 2016-02-19 CN CN201620128657.0U patent/CN205705361U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097436A (en) * | 2016-02-19 | 2017-08-29 | 上海杉华复合材料科技有限公司 | The production method and process units of a kind of fibre reinforced thermoplastic composite |
| CN108297302A (en) * | 2017-04-25 | 2018-07-20 | 航天特种材料及工艺技术研究所 | A kind of gumming device and method preparing 3D printing consumptive material |
| CN109927206A (en) * | 2019-04-25 | 2019-06-25 | 深圳市银宝山新科技股份有限公司 | Fiber drawing-in device and fiber feed system |
| CN110482932A (en) * | 2019-09-06 | 2019-11-22 | 大同新成新材料股份有限公司 | A kind of preparation method and preparation facilities of carbon felt cement composite material |
| CN114311401A (en) * | 2022-01-11 | 2022-04-12 | 北京航空航天大学宁波创新研究院 | Manufacturing device of resin-based long fiber composite preimpregnation yarn |
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Granted publication date: 20161123 Termination date: 20190219 |