CN103395137A - Method for improving interlamination compactness of resin matrix composite material by layered curing by means of electron beam - Google Patents
Method for improving interlamination compactness of resin matrix composite material by layered curing by means of electron beam Download PDFInfo
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- CN103395137A CN103395137A CN201310314747XA CN201310314747A CN103395137A CN 103395137 A CN103395137 A CN 103395137A CN 201310314747X A CN201310314747X A CN 201310314747XA CN 201310314747 A CN201310314747 A CN 201310314747A CN 103395137 A CN103395137 A CN 103395137A
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Abstract
The invention discloses a method for improving the interlamination compactness of a resin matrix composite material by layered curing by means of an electron beam. The method comprises the following steps: firstly carrying out layered irradiation on a resin matrix composite material prepreg tape by utilizing a lower-energy electron beam, triggering a resin matrix composite material to begin a curing reaction, carrying out layered lamination on the resin matrix composite material irradiated by the electron beam by utilizing an ultrasound compression roller, and finishing the molding of the composite material. The method disclosed by the invention has the advantages that the interlamination compactness of the resin matrix composite material by layered curing by means of the electron beam is effectively improved, the internal defects of the composite material are reduced, and the interlamination intensity of the composite material is increased.
Description
Technical field
The invention belongs to polymer matrix composites and make field, relate to a kind of method that improves polymer matrix composites electron beam multi-shell curing interlayer compactness.
Background technology
Resin base fiber reinforced composite material has that density is little, specific strength is high, specific modulus is high, fatigue resistance and corrosion resistance is high and the advantage such as structure-function integration, integrated manufacturing system (IMS).In fields such as Aero-Space, wind power generation blade, automobiles, boundless application prospect is arranged.Electronic beam curing is a kind of as hardening with radiation, has a curing rate than traditional heat cure mode fast, the member residual stress is little, the advantages such as the little and low cost of manufacture of forming process energy consumption, especially low-energy electron beam is with respect to the high energy electron beam-curable, maintenance, shielding and the manufacturing etc. of solidifying equipment have better advantage, therefore in composite material solidification technique, more and more come into one's own.
But the penetration capacity of low-energy electron beam is limited, can not disposable certain thickness composite be penetrated, and therefore thicker composite, generally by the mode of multi-shell curing, namely is divided into integrally curing repeatedly to be cured moulding.Yet, multi-shell curing can inevitably cause the reduction of composite interlayer adhesive property, and the low-energy electron beam-curable belongs to the normal temperature rapid curing, the resin popularity is poor, gap between fiberfill fibers fully, cause the composite interlayer to produce hole, reduced the interlaminar strength of composite.
Summary of the invention
The problem that the present invention solves is to provide a kind of method that improves polymer matrix composites electron beam multi-shell curing interlayer compactness, overcome the lower shortcoming of low-energy electron beam multi-shell curing interlayer compactness, can effectively improve composite interlayer intensity in low-energy electron beam multi-shell curing manufacture process, improve the performance of polymer matrix composites.
The present invention is achieved through the following technical solutions:
A kind of method that improves polymer matrix composites electron beam multi-shell curing interlayer compactness comprises following operation:
1) utilize low-energy electron beam to carry out layering irradiation to the polymer matrix composites prepreg tape, cause polymer matrix composites and start curing reaction;
2) the polymer matrix composites prepreg tape that will cross through electron beam irradiation when carrying guide roller to default position, uses ultrasonic pressure roller to carry out the place Min layers pressure to it, completes the laying moulding to polymer matrix composites; Ultrasonic pressure roller is when compressing polymer matrix composites, and heat polymer matrix composites on periodic mechanical oscillation limit, limit.
Described low-energy electron beam is produced by low-energy electron beam multi-shell curing device, and its energy is 100KeV～150KeV.
Described ultrasonic pressure roller comprises supersonic generator, transducer, ultrasonic transformer and ultrasonic pressure head, wherein supersonic generator produces the supersonic frequency signal, transducer is converted to the supersonic frequency mechanical oscillation with the supersonic frequency signal, increase the amplitude of supersonic frequency mechanical oscillation by ultrasonic transformer, induced effect in the ultrasonic pressure head of prepreg tape with the supersonic frequency mechanical oscillation.
The vibration frequency of described ultrasonic pressure head is 20KHz～40KHz, and amplitude is 5 μ m～30 μ m.
The process of excess sound pressure roll laminating, the ultrasonic vibration mechanical energy is converted into heat energy, and composite material prepreg is heated, and controlling heating-up temperature is 45 ℃～85 ℃.
Ultrasonic pressure roller in the process of paving pressurizing resin based composites, can be regulated the angle that paving is pressed, and angular range is 30 °～90 °; Described angle is laid the angle of direction for paving pressure head and prepreg tape.
Ultrasonic pressure roller is in the process of compression, compacting polymer matrix composites, and its paving pressure speed can be regulated according to frequency, the amplitude of ultrasonic pressure roller.
Described polymer matrix composites are carbon fiber resin matrix composite.
Compared with prior art, the present invention has following useful technique effect:
The method of raising polymer matrix composites electron beam multi-shell curing interlayer compactness provided by the invention, utilize low-energy electron beam to carry out layering irradiation, curing to the polymer matrix composites prepreg tape; Carry out place Min layers in conjunction with ultrasonic vibration, the heating of ultrasonic pressure roller and press, complete the laying moulding to this composite;
Reduce through the carbon fibre composite prepreg tape of low energy electron beam irradiation is flexible, have certain rigidity, the laying moulding can not well be fitted, and is prone to hole.And ultrasonic pressure roller can produce the mechanism of high frequency period while acting on composite material prepreg, helps prepreg tape flatness when laying to improve, and is beneficial to laminating; Simultaneously, during the work of ultrasonic pressure roller, at the contact area of pressure roller and prepreg tape, will produce amount of heat, and improve laying and, just in the viscosity of the prepreg tape of laying, helped between prepreg tape better bonding; Further, this heat reduces the stickiness of resin, is conducive to flowing of resin, thereby has filled prepreg tape interlayer hole, has improved interlayer compactness; Thereby can effectively reduce the distribution of composite interlayer hole, improve adhesive property and the interlaminar strength of composite interlayer.
The method of raising polymer matrix composites electron beam multi-shell curing interlayer compactness provided by the invention, ultrasonic pressure roller is in paving pressure process, and the ultrasonic vibration mechanical energy is converted into heat energy, the prepreg tape rear mobility that increases resin of being heated, thereby hole between packed layer; The dither of ultrasonic pressure roller can cause the inside and outside pressure of interlayer hole (bubble) to produce periodic fluctuation simultaneously, thereby impels breaking of bubble, has increased interlaminar strength.
The method of raising polymer matrix composites electron beam multi-shell curing interlayer compactness provided by the invention, its energy consumption is low, and efficiency is high, and flexibility is good.
Description of drawings
Fig. 1 is that the lay angle is the ultrasonic pressure roller paving pressurizing resin based composites electron beam multi-shell curing prepreg tape schematic diagram of θ;
Wherein, 1 is the polymer matrix composites prepreg tape, and 2 is low-energy electron beam multi-shell curing device, and 3 for carrying guide roller, and 4 is ultrasonic pressure roller, and 5 is core.
Fig. 2 is the distribution of pores that adopts the exemplar of traditional pressure roller and ultrasonic pressure roller paving pressure, and wherein (a) is the distribution of pores of traditional pressure roller paving pressure-like part, is (b) distribution of pores of ultrasonic pressure roller paving pressure-like part.
The specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment, and the explanation of the invention is not limited.
With reference to Fig. 1, a kind of method that improves polymer matrix composites electron beam multi-shell curing interlayer compactness comprises following operation:
1) utilize low-energy electron beam to carry out layering irradiation to the polymer matrix composites prepreg tape, cause polymer matrix composites and start curing reaction;
2) the polymer matrix composites prepreg tape that will cross through electron beam irradiation when carrying guide roller to default position, uses ultrasonic pressure roller to carry out the place Min layers pressure to it, completes the laying moulding to polymer matrix composites; Ultrasonic pressure roller is when compressing polymer matrix composites, and heat polymer matrix composites on periodic mechanical oscillation limit, limit.
Concrete, described low-energy electron beam is produced by low-energy electron beam multi-shell curing device, and its energy is 100KeV～150KeV.
And described ultrasonic pressure roller comprises supersonic generator, transducer, ultrasonic transformer and ultrasonic pressure head, and transducer, ultrasonic transformer and the employing of ultrasonic pressure head are threaded, and can guarantee the rigidity that connects.In the excess sound pressure roller arrangement, supersonic generator produces the supersonic frequency signal, transducer is converted to the supersonic frequency mechanical oscillation with the supersonic frequency signal, increases the amplitude of supersonic frequency mechanical oscillation by ultrasonic transformer, induced effect in the ultrasonic pressure head of prepreg tape with the supersonic frequency mechanical oscillation.
Further, the vibration frequency of described ultrasonic pressure head is 20KHz～40KHz, and amplitude is 5 μ m～30 μ m.The process of excess sound pressure roll laminating, the ultrasonic vibration mechanical energy is converted into heat energy, and composite material prepreg is heated, and controlling heating-up temperature is 45 ℃～85 ℃.Ultrasonic pressure roller in the process of paving pressurizing resin based composites, can be regulated the angle that paving is pressed, and angular range is 30 °～90 °; Described angle is laid the angle of direction for paving pressure head and prepreg tape.And ultrasonic pressure roller is compressing, in the process of compacting polymer matrix composites, and its paving pressure speed can be regulated according to frequency, the amplitude of ultrasonic pressure roller.
When carrying out the laying of above-mentioned resin composite materials electron beam multi-shell curing layer, reduce through the carbon fibre composite prepreg tape of low energy electron beam irradiation is flexible, have certain rigidity, the laying moulding can not well be fitted, and is prone to hole.When ultrasonic pressure roller acts on the carbon fibre composite prepreg tape, can produce the mechanism of high frequency period, help prepreg tape flatness when laying to improve, be beneficial to laminating; Simultaneously, during the work of ultrasonic pressure roller, at the contact area of pressure roller and prepreg tape, will produce amount of heat, and improve laying and, just in the viscosity of the prepreg tape of laying, helped between prepreg tape better bonding; Further, this heat reduces the stickiness of resin, is conducive to flowing of resin, thereby has filled prepreg tape interlayer hole, has improved interlayer compactness.
Below provide concrete experimental verification
Resin-based carbon fiber reinforced composite prepreg tape is T700/EB99-1 electron beam curing resin base carbon fibre reinforced composite prepreg tape, it, by low-energy electron beam (the low energy electron beam irradiation equipment that U.S. AEB produces) irradiation, is caused composite and start to be cured reaction; Molded by paving pressure device paving through the prepreg tape of electron beam irradiation, the paving of controlling in paving pressure process is pressed parameter, through laying (in experiment, the laying quantity of laminate is 16 layers) repeatedly, and the preparation of complete layer plywood; For the laminate of moulding, owing to not solidifying fully after electron beam irradiation, and have higher curing cross-linking reaction perhaps, solidify and process after needing, press resulting profiled member to carry out heat treated to paving in experiment, complete final curing molding.In experiment, take existing pressure roller and ultrasonic pressure roller respectively as the paving pressure device, adopt ultrasonic microscope to carry out hole scanning the exemplar of preparation, scanning result is seen Fig. 2, as can be seen from Figure, the exemplar hole that adopts ultrasonic pressure roller paving to press is starkly lower than traditional pressure roller paving and presses, and namely ultrasonic pressure roller laying effectively raises the compactness of exemplar.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; without departing from the inventive concept of the premise; the simple deduction or replace of making, all should be considered as belonging to the present invention and determine scope of patent protection by claims of submitting to.
Claims (8)
1. a method that improves polymer matrix composites electron beam multi-shell curing interlayer compactness, is characterized in that, comprises following operation:
1) utilize low-energy electron beam to carry out layering irradiation to the polymer matrix composites prepreg tape, cause polymer matrix composites and start curing reaction;
2) the polymer matrix composites prepreg tape that will cross through electron beam irradiation when carrying guide roller to default position, uses ultrasonic pressure roller to carry out the place Min layers pressure to it, completes the laying moulding to polymer matrix composites; Ultrasonic pressure roller is when compressing polymer matrix composites, and heat polymer matrix composites on periodic mechanical oscillation limit, limit.
2. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as claimed in claim 1, is characterized in that, described low-energy electron beam is produced by low-energy electron beam multi-shell curing device, and its energy is 100KeV～150KeV.
3. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as claimed in claim 1, it is characterized in that, described ultrasonic pressure roller comprises supersonic generator, transducer, ultrasonic transformer and ultrasonic pressure head, wherein supersonic generator produces the supersonic frequency signal, transducer is converted to the supersonic frequency mechanical oscillation with the supersonic frequency signal, increase the amplitude of supersonic frequency mechanical oscillation by ultrasonic transformer, induced effect in the ultrasonic pressure head of prepreg tape with the supersonic frequency mechanical oscillation.
4. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as claimed in claim 3, is characterized in that, the vibration frequency of described ultrasonic pressure head is 20KHz～40KHz, and amplitude is 5 μ m～30 μ m.
5. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as described in claim 1 or 3, it is characterized in that, the process of excess sound pressure roll laminating, the ultrasonic vibration mechanical energy is converted into heat energy, composite material prepreg is heated, and controlling heating-up temperature is 45 ℃～85 ℃.
6. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as described in claim 1 or 3, is characterized in that, ultrasonic pressure roller in the process of paving pressurizing resin based composites, can be regulated the angle that paving is pressed, and angular range is 30 °～90 °; Described angle is laid the angle of direction for paving pressure head and prepreg tape.
7. the method for raising polymer matrix composites electron beam multi-shell curing interlayer compactness as claimed in claim 1, it is characterized in that, ultrasonic pressure roller is in the process of compression, compacting polymer matrix composites, and its paving pressure speed can be regulated according to frequency, the amplitude of ultrasonic pressure roller.
8. require the method for described raising polymer matrix composites electron beam multi-shell curing interlayer compactness as right 1, it is characterized in that, described polymer matrix composites are carbon fiber resin matrix composite.
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| CN201310314747XA CN103395137A (en) | 2013-07-24 | 2013-07-24 | Method for improving interlamination compactness of resin matrix composite material by layered curing by means of electron beam |
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| CN201310314747XA CN103395137A (en) | 2013-07-24 | 2013-07-24 | Method for improving interlamination compactness of resin matrix composite material by layered curing by means of electron beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083304A (en) * | 2020-08-18 | 2020-12-15 | 西安交通大学 | Preparation method of sample for simulating layered defect of insulator insert |
| CN113289837A (en) * | 2021-05-27 | 2021-08-24 | 燕山大学 | Vibration-assisted powder coating roll forming device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432236B1 (en) * | 1991-03-01 | 2002-08-13 | Foster-Miller, Inc. | Ultrasonic method of fabricating a thermosetting matrix fiber-reinforced composite structure and the product thereof |
| CN1388175A (en) * | 2001-05-25 | 2003-01-01 | 北京航空材料研究院 | Thermoplastic resin modified and electronic beam cured composite material epoxy resin-base |
-
2013
- 2013-07-24 CN CN201310314747XA patent/CN103395137A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432236B1 (en) * | 1991-03-01 | 2002-08-13 | Foster-Miller, Inc. | Ultrasonic method of fabricating a thermosetting matrix fiber-reinforced composite structure and the product thereof |
| CN1388175A (en) * | 2001-05-25 | 2003-01-01 | 北京航空材料研究院 | Thermoplastic resin modified and electronic beam cured composite material epoxy resin-base |
Non-Patent Citations (1)
| Title |
|---|
| 赵新明等: "低能电子束原位固化树脂基复合材料纤维铺放制造及性能", 《机械工程学报》, vol. 49, no. 11, 30 June 2013 (2013-06-30), pages 121 - 127 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083304A (en) * | 2020-08-18 | 2020-12-15 | 西安交通大学 | Preparation method of sample for simulating layered defect of insulator insert |
| CN113289837A (en) * | 2021-05-27 | 2021-08-24 | 燕山大学 | Vibration-assisted powder coating roll forming device and method |
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Application publication date: 20131120 |