CN104772912B - Method for improving interlamination strength of reinforced resin-based composite material of flat fabric - Google Patents
Method for improving interlamination strength of reinforced resin-based composite material of flat fabric Download PDFInfo
- Publication number
- CN104772912B CN104772912B CN201510171213.5A CN201510171213A CN104772912B CN 104772912 B CN104772912 B CN 104772912B CN 201510171213 A CN201510171213 A CN 201510171213A CN 104772912 B CN104772912 B CN 104772912B
- Authority
- CN
- China
- Prior art keywords
- reinforced resin
- flat fabric
- based composites
- resin based
- fabric reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a method for improving the interlamination strength of a reinforced resin-based composite material of a flat fabric. By using the principle that fiber is straightened in fluid and is oriented in the flowing direction of the fluid and with the help of external pressure, suspension liquid of fiber power body and resin base body flows along the thickness direction of the reinforced resin-based composite material of the flat fabric, wherein the diameter of the fiber power body is at a nano or micron scale; after the resin is finally cured, the fiber reinforced material is oriented in the thickness direction of the reinforced resin-based composite material of the flat fabric and is distributed, so that the laminations of the flat fabric are consolidated as an entire body to form a quasi-three-dimensional machine and the interlamination strength of the reinforced resin based composite material of the flat fabric is greatly improved; besides, the method has the advantage of simplicity in operation and easiness in implementation.
Description
Technical field
The present invention relates to a kind of method for improving composite interlayer intensity, particularly improves flat fabric reinforced resin base
The method of composite interlayer intensity.
Background technology
One-way fiber or two-dimensional fabric reinforced resin based composites have that specific strength is big, specific stiffness is big, designability is strong,
Resisting fatigue, it is corrosion-resistant the advantages of, many fields instead of tradition application metal material, however, its interlaminar strength it is low and
Anti- layering, the shortcomings of impact resistance is weak, limits which and further extensively apply.Some scientific research personnel are increased by resin matrix
It is tough improving interlayer performance, be added to elastomers such as rubber, thermoplastic resins as plasticizer in resin matrix, this method
Shortcoming be, while toughness reinforcing, to cause composite modulus and humidity resistance to decline, and resin matrix toughness is significantly
Raising can not be efficiently transferred to composite itself；Scientific research personnel also is using sewing process to performing member in lamination thickness of slab
Degree direction introduces the stitching thread of high tensile, such as carbon fiber, glass fibre etc. by suturing skill, is one by each laying connection
Individual entirety, the shortcoming of this method are although suture improves the performance in thickness of composite material direction, but to also result in face
The damage of fiber, reduces performance in the face of composite.
The content of the invention
1）Suitable fiber powder reinforcing material is selected, which is uniformly mixed in proportion with resin matrix, suspension is made；
2）It is by flat fabric reinforced resin based composites fixed placement, at least partly hanging below；
3）Apparatus for placing is set in the top of flat fabric reinforced resin based composites hanging part, by step 1）Middle system
Standby suspension is poured into wherein；
4）By pressure applying means, make the suspension in apparatus for placing thick along flat fabric reinforced resin based composites
The infiltration of degree direction；
5）Suspension from after leaching rate substantially constant below flat fabric reinforced resin based composites stops applying pressure
Power；
6）Operate more than repeating, till flat fabric reinforced resin based composites all infiltrate as requested；
7）Solidified resin.
The method for improving flat fabric reinforced resin based composites interlaminar strength according to the present invention, it is characterised in that：
The fiber powder reinforcing material, fiber, glass fibre and carbon fiber including CNT and other nanometer-sized diameters and
The fiber of other micro-meter scale diameters.
The method for improving flat fabric reinforced resin based composites interlaminar strength according to the present invention, it is characterised in that：
The pressure applying means are compression pump, and cylinder of the apparatus for placing for upper and lower opening, is open below and flat fabric increases
The upper surface laminating of strong polymer matrix composites, the outlet of compression pump are stretched in cylinder by upper opening, and cylinder upper end is opened
Mouth sealing.
The method for improving flat fabric reinforced resin based composites interlaminar strength according to the present invention, it is characterised in that：
The pressure applying means are vacuum pump and vacuum bag, and vacuum bag is located at below flat fabric reinforced resin based composites,
And be connected with its air-tightness, vacuum pump is connected with vacuum bag air-tightness by sebific duct；Circle of the apparatus for placing for upper and lower opening
Cylinder, is open below and is fitted with the upper surface of flat fabric reinforced resin based composites.
The method for improving reinforced resin based composites interlaminar strength according to the present invention, it is characterised in that：It is described
Pressure applying means are vacuum pump, and are located at below flat fabric reinforced resin based composites, and are connected with its air-tightness
Vacuum bag, vacuum pump is connected with vacuum bag air-tightness by sebific duct；The apparatus for placing is positioned at flat fabric reinforced resin
Above based composites, and the vacuum bag that is connected with its air-tightness and upper and lower opening cylinder, cylinder strengthens positioned at flat fabric
Above polymer matrix composites, and it is spaced a distance, its lower end is stretched into above flat fabric reinforced resin based composites
In vacuum bag, and it is connected with its air-tightness.
The method for improving flat fabric reinforced resin based composites interlaminar strength according to the present invention, it is characterised in that：
Arrange below flat fabric reinforced resin based composites and receive container, it is compound from flat fabric reinforced resin base for reclaiming
The suspension oozed out below material.
The method for improving reinforced resin based composites interlaminar strength according to the present invention, using fiber in a fluid
Stretch and along the principle of fluid flow direction orientation, by external pressure, make fiber powder reinforcing material outstanding with resin matrix
Supernatant liquid flows along the thickness direction of flat fabric reinforced resin based composites, after final resin solidification, the fibre of the big L/D ratio
The thickness direction tieed up along flat fabric reinforced resin based composites is orientated and is distributed, so as to greatly improve flat fabric increasing
The interlaminar strength of strong polymer matrix composites.In addition, the present invention also have the advantages that it is simple to operate, be easily achieved.
Description of the drawings
What Fig. 1 was given is one apparatus structure schematic diagram of the embodiment of the present invention；
What Fig. 2 was given is embodiment of the present invention two devices structural representation；
What Fig. 3 was given is three apparatus structure schematic diagram of the embodiment of the present invention.
Wherein, 1- workbench, 2- flat fabric reinforced resin based composites, 3- clamping devices, 4- cylinders, 5- are received and are held
Device, 6- vacuum bags.
Specific embodiment
By specific embodiment, the invention will be further described below, but not as the restriction to technical scheme.
Embodiment one
In the solution container for filling 500gTDE-85 epoxy resin, dispersant and curative systems, add while stirring
3g 5 ~ 15nm of diameter, long 30 ~ 150 μm of SWCN, afterwards by its ultrasonic disperse 30 minute at room temperature.
Workbench 1, is made up of rectangular flat table top and four lower limbs, and the centre position of its flat board table top is provided with long 800mm, width
The square hole of 500mm.
Flat fabric reinforced resin based composites 2, which is made up of five layers of glass fabric superposition.
Cylinder 4, upper and lower opening, internal diameter 100mm.
As shown in figure 1, workbench 1 is placed on correct position, then flat fabric reinforced resin based composites 2 are spread
It is placed on its flat board table top, and is fixed by clamping device 3, cylinder 4 is positioned over the flat fabric in 1 square hole of workbench
2 upper surface of reinforced resin based composites, receives container 5 and is just being positioned over cylinder 4 and flat fabric reinforced resin based composites 2
Lower section.The container for containing SWCN and epoxy resin solution is placed above the side of cylinder 4, in the container near diapire
Opening is set on the wall of side, and one end of pipe is connected with the opening, and the other end is stretched in cylinder 4 from top, arranges valve on pipe；
Compression pump is set on the side of workbench 1, the outlet of compression pump is equally stretched in cylinder 4 from top.Will be close at the top of cylinder 4
Envelope.
The valve on pipe is opened, the suspension flow of SWCN that ultrasonic disperse crosses and TDE-85 epoxy resin is allowed
Enter in cylinder 4, then start compression pump, apply the pressure of 0.2GPa into cylinder 4, suspension therein oozes under pressure
Penetrate in the flat fabric reinforced resin based composites 2 of lower section.
Continu to press, until the suspension speed oozed out below flat fabric reinforced resin based composites 2 is basic
Constant, the suspension for oozing out is fallen in reception container 5.
By cylinder 4 and below receive that container 5 is moved to flat fabric reinforced resin based composites 2 be not impregnated with portion
Position, repeats aforesaid operations step, until the infiltration of monoblock flat fabric reinforced resin based composites 2 is completed；Also optionally can weigh
It is multiple to impregnate.
Enter and stay in inside flat fabric reinforced resin based composites 2 along its thickness direction according to the method described above
Suspension, SWCN therein can be between external pressure and glass fibre in the presence of frictional force, along plane
The thickness of reinforced resin based composites 2 is similar to the direction orientation of thickness, and is distributed in flat fabric reinforced resin
In the whole inner space of based composites 2, with the solidification of subsequent handling TDE-85 epoxy resin, SWCN is taking
To state fix therebetween.Constitute between the fiberglass cloth and layer of flat fabric reinforced resin based composites 2, due to
There is the SWCN of a large amount of vertical direction, so as to drastically increase flat fabric reinforced resin based composites 2
Interlaminar strength.
Embodiment two
In the solution container for filling 800g phenolic resin, dispersant and curative systems, 6g diameters 5 are added while stirring
~ 10 μm, long 50 ~ 200 μm short glass fiber, until dispersed.
Workbench 1, is made up of rectangular flat table top and four lower limbs, and the centre position of its flat board table top is provided with diameter 100mm
Circular holes.
Flat fabric reinforced resin based composites 2, by the T700-3K carbon cloths superposition that ten aspect density are 200
Into.
Cylinder 4, upper and lower opening, internal diameter 104mm.
As shown in Fig. 2 work platform for placing 1, by clamping device 3, flat fabric reinforced resin based composites 2 is fixed
In the above.Cylinder 4 is positioned over 2 upper surface of flat fabric reinforced resin based composites, and the circular holes of 1 table top of workbench are complete
Below chamber disposed within；Lower section lays vacuum bag 6, and its central aperture is connected with reception container 5 by sebific duct, its side perforate is led to
Cross sebific duct to be connected with vacuum pump, vacuum bag 6 is close with flat fabric reinforced resin based composites 2, cylinder 4 and sebific duct respectively
Envelope.
After installing, the suspension first by part short glass fiber with phenolic resin pours flat fabric enhancing tree into
In cylinder 4 above resin-based composite 2, then start vacuum pump so that suspension two-way pressure difference in the presence of, slowly
Penetrate in flat fabric reinforced resin based composites 2 below.Treat under flat fabric reinforced resin based composites 2
After the suspension speed substantially constant that side is oozed out, vacuum pump is out of service, takes cylinder 4 away, unclamps clamping device 3, then moves
Flat fabric reinforced resin based composites 2, the part for not having suspension infiltration are moved to above circular holes, then by cylinder 4
Put to above circular holes, again flat fabric reinforced resin based composites 2 are fixed with clamping device 3, start vacuum pump.Weight
Multiple aforesaid operations, till flat fabric reinforced resin based composites 2 all infiltration suspension.
After phenolic resin curing, short glass fiber therein is then with thick along flat fabric reinforced resin based composites 2
The state of degree direction orientation is fixed therebetween, so that connection is one between 2 each layer of flat fabric reinforced resin based composites
Individual entirety, drastically increases the interlaminar strength of flat fabric reinforced resin based composites 2.
Embodiment three
In the solution container for filling 800g phenolic resin, dispersant and curative systems, 8g diameters 5 are added while stirring
~ 10 μm, long 50 ~ 200 μm short glass fiber, until dispersed.
Workbench 1, is made up of rectangular flat table top and four lower limbs, and the centre position of its flat board table top is provided with length and width and is all
The square hole of 800mm.
Flat fabric reinforced resin based composites 2, are formed by stacking by the T300-6K carbon fibers that ten aspect density are 100.
Cylinder 4, upper and lower opening, internal diameter 50mm.
As shown in figure 3, work platform for placing 1, by clamping device 3, flat fabric reinforced resin based composites 2 is fixed
In the above.Vacuum bag 6, its central aperture is laid above flat fabric reinforced resin based composites 2；Lower section is same to be laid very
Empty bag 6, by sebific duct, container 5 is connected its central aperture, its side perforate is connected with vacuum pump by sebific duct with reception.Cylinder 4
, above flat fabric reinforced resin based composites 2, its lower surface is compound apart from flat fabric reinforced resin base for fixed placement
2 upper surface 800mm of material, lower end is positioned in the perforate of vacuum bag 6.Place above the side of cylinder 4 and hold single
The container of pipe and epoxy resin, arranges opening on the side wall of diapire in the container, and one end of pipe is connected with the opening, separately
One end is stretched in cylinder 4 from top, arranges valve on pipe.On the side of workbench 1, compression pump, the outlet of compression pump are set
Equally stretch in cylinder 4 from top.The vacuum bag 6 of 2 upper and lower of flat fabric reinforced resin based composites is knitted with plane respectively
Thing reinforced resin based composites 2, sealing between cylinder 4 and sebific duct.
After installing, the suspension first by short glass fiber with phenolic resin is poured on flat fabric by cylinder 4
Then cylinder 4 is open sealing by 2 upper surface of reinforced resin based composites, starts vacuum pump so that suspension is in two-way pressure
In the presence of difference, slowly penetrate in flat fabric reinforced resin based composites 2 below, until flat fabric strengthens
The suspension speed substantially constant oozed out below polymer matrix composites 2.
After phenolic resin curing, short glass fiber therein is then with thick along flat fabric reinforced resin based composites 2
The state of degree direction orientation is fixed therebetween, so that connection is one between 2 each layer of flat fabric reinforced resin based composites
Individual entirety, drastically increases the interlaminar strength of flat fabric reinforced resin based composites 2.
Claims (7)
1. a kind of method for improving flat fabric reinforced resin based composites interlaminar strength, its operating procedure is：
1) suitable fiber powder reinforcing material is selected, which is uniformly mixed in proportion with resin matrix, suspension is made；
2) it is by flat fabric reinforced resin based composites (2) fixed placement, at least partly hanging below；
3) apparatus for placing is set in the top of flat fabric reinforced resin based composites (2) hanging part, by step 1) middle system
Standby suspension is poured into wherein；
4) by pressure applying means, make the suspension in apparatus for placing thick along flat fabric reinforced resin based composites (2)
The infiltration of degree direction；
5) suspension from after leaching rate substantially constant below flat fabric reinforced resin based composites (2) stops applying pressure
Power；
6) operate more than repeating, till flat fabric reinforced resin based composites (2) all infiltrates as requested；
7) solidified resin.
2. it is according to claim 1 improve flat fabric reinforced resin based composites interlaminar strength method, its feature
It is：The fiber powder reinforcing material, the fiber of fiber or micro-meter scale diameter including nanometer-sized diameter.
3. it is according to claim 2 improve flat fabric reinforced resin based composites interlaminar strength method, its feature
It is：The fiber of the nanometer-sized diameter is CNT, and the fiber of the micro-meter scale diameter is carbon fiber or glass fibers
Dimension.
4. it is according to claim 1 improve flat fabric reinforced resin based composites interlaminar strength method, its feature
It is：The pressure applying means are compression pump, and the apparatus for placing is the cylinder (4) of upper and lower opening, is open below and puts down
The upper surface laminating in face reinforced resin based composites (2), the outlet of compression pump stretch into cylinder (4) by upper opening
In, the sealing of cylinder (4) upper end open.
5. it is according to claim 1 improve flat fabric reinforced resin based composites interlaminar strength method, its feature
It is：The pressure applying means are vacuum pump and vacuum bag (6), and vacuum bag (6) is multiple positioned at flat fabric reinforced resin base
Below condensation material (2), and it is connected with its air-tightness, vacuum pump is connected with vacuum bag (6) air-tightness by sebific duct；It is described to hold dress
The cylinder (4) of upper and lower opening is set to, opening is fitted with the upper surface of flat fabric reinforced resin based composites (2) below.
6. it is according to claim 1 improve flat fabric reinforced resin based composites interlaminar strength method, its feature
It is：The pressure applying means be vacuum pump, and be located at flat fabric reinforced resin based composites (2) below, and with
The vacuum bag (6) of its air-tightness connection, vacuum pump are connected with vacuum bag (6) air-tightness by sebific duct；The apparatus for placing is position
Above flat fabric reinforced resin based composites (2), and the vacuum bag (6) that is connected with its air-tightness and upper and lower opening circle
Cylinder (4), cylinder (4) are located above flat fabric reinforced resin based composites (2), and are spaced a distance, and its lower end is stretched into
In vacuum bag (6) above flat fabric reinforced resin based composites (2), and it is connected with its air-tightness.
7. according to any one of claim 1 to 6 raising flat fabric reinforced resin based composites interlaminar strength side
Method, it is characterised in that：Arrange below flat fabric reinforced resin based composites (2) and receive container (5), for reclaiming from flat
The suspension oozed out below face reinforced resin based composites (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171213.5A CN104772912B (en) | 2014-12-30 | 2015-04-13 | Method for improving interlamination strength of reinforced resin-based composite material of flat fabric |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836221 | 2014-12-30 | ||
| CN2014108362212 | 2014-12-30 | ||
| CN201510171213.5A CN104772912B (en) | 2014-12-30 | 2015-04-13 | Method for improving interlamination strength of reinforced resin-based composite material of flat fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104772912A CN104772912A (en) | 2015-07-15 |
| CN104772912B true CN104772912B (en) | 2017-03-22 |
Family
ID=53614827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510171213.5A Active CN104772912B (en) | 2014-12-30 | 2015-04-13 | Method for improving interlamination strength of reinforced resin-based composite material of flat fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104772912B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524909A (en) * | 2019-09-19 | 2019-12-03 | 山东非金属材料研究所 | One kind is by the carbon nano-tube oriented reinforced resin based composites forming method of flow-induction repeatedly |
| CN113334793B (en) * | 2021-05-18 | 2022-06-17 | 山东非金属材料研究所 | Method for improving interlayer strength of fiber reinforced thermosetting resin-based unidirectional composite material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5637328A (en) * | 1994-05-23 | 1997-06-10 | General Motors Corporation | Pulsating gas-assisted injection molding apparatus |
| CA2128238C (en) * | 1992-01-16 | 2002-07-16 | Clifford Karl Deakyne | Preconsolidation process for making fluoropolymer composites |
| CN1647875A (en) * | 2005-03-21 | 2005-08-03 | 西安航天复合材料研究所 | Method for producing carbon/carbon skid of magnetic suspension train |
| CN1758012A (en) * | 2005-09-02 | 2006-04-12 | 北京玻钢院复合材料有限公司 | Armoured material and its shaping method |
| CN103273662A (en) * | 2013-05-24 | 2013-09-04 | 航天材料及工艺研究所 | Preparation method of low heat expansion carbon fiber reinforced resin matrix composite material mold |
-
2015
- 2015-04-13 CN CN201510171213.5A patent/CN104772912B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2128238C (en) * | 1992-01-16 | 2002-07-16 | Clifford Karl Deakyne | Preconsolidation process for making fluoropolymer composites |
| US5637328A (en) * | 1994-05-23 | 1997-06-10 | General Motors Corporation | Pulsating gas-assisted injection molding apparatus |
| CN1647875A (en) * | 2005-03-21 | 2005-08-03 | 西安航天复合材料研究所 | Method for producing carbon/carbon skid of magnetic suspension train |
| CN1758012A (en) * | 2005-09-02 | 2006-04-12 | 北京玻钢院复合材料有限公司 | Armoured material and its shaping method |
| CN103273662A (en) * | 2013-05-24 | 2013-09-04 | 航天材料及工艺研究所 | Preparation method of low heat expansion carbon fiber reinforced resin matrix composite material mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104772912A (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Permeability and mechanical properties of plant fiber reinforced hybrid composites | |
| JP5868861B2 (en) | Multiaxial laminate rigidly connected by joints applied by an inserted thermoplastic web | |
| CN101705922B (en) | Large-scale composite material wind-power blade and preparation method thereof | |
| JP2004131538A (en) | Carbon nanofiber-dispersed resin fiber-reinforced composite material | |
| Ma et al. | Improving the interlaminar properties of polymer composites using a situ accumulation method to construct the multi-scale reinforcement of carbon nanofibers/carbon fibers | |
| CN104772912B (en) | Method for improving interlamination strength of reinforced resin-based composite material of flat fabric | |
| JP6138045B2 (en) | Method for producing high-weight carbon fiber sheet for RTM method and RTM method | |
| CN104589669B (en) | A kind of composite liquid pressure forming method | |
| EP3102404A1 (en) | Articles and methods for manufacture of nanostructure reinforced composites | |
| CN102930862B (en) | Z-direction enhanced underwater sound absorption sandwich composite material and preparation method for same | |
| CN102107535A (en) | Method for manufacturing carbon fiber reinforced resin matrix composite structure | |
| CN103770341A (en) | Processing system for carbon fiber reinforced composite material and controllable carbon fiber self-heating method adopting liquid molding technology | |
| CN108284619A (en) | A kind of interlayer toughened composite material, preparation method and application | |
| CN102166862A (en) | High-performance prefabricated reinforced fabric for facilitating resin flow and a preparation method thereof | |
| CN109808196A (en) | Fiber laminated composite material containing high-orientation-degree carbon nano tubes between layers and preparation method thereof | |
| CN105860440A (en) | Basalt fiber and glass fiber mixing reinforced thermosetting resin prepreg cloth | |
| KR20180117143A (en) | Manufacturing method of fiber reinforced composite material | |
| CN101925450A (en) | Multilayer, flexible planar material | |
| JP2008246690A (en) | Resin transfer molding method | |
| CN104325653B (en) | The method for continuous production of a kind of GRP pipe and prepared GRP pipe | |
| CN106544776A (en) | A kind of three dimensional fabric | |
| CN105859303B (en) | A kind of carbon/carbon compound material precast body and preparation method thereof | |
| CN109808201B (en) | Preparation and forming method of nano gradient fiber reinforced wear-resistant composite material | |
| US20190134855A1 (en) | Device and method for preparation of a composite for on-site pipeline reinforcement | |
| CN102729485B (en) | Method of producing fibre reinforced structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |