CN108327311A - A kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate - Google Patents
A kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate Download PDFInfo
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- CN108327311A CN108327311A CN201810099068.8A CN201810099068A CN108327311A CN 108327311 A CN108327311 A CN 108327311A CN 201810099068 A CN201810099068 A CN 201810099068A CN 108327311 A CN108327311 A CN 108327311A
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- carbon fiber
- weaving carbon
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- thermoplastic resin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses the post forming methods that a kind of weaving carbon fiber enhances laminated thermoplastic resin plate, include the following steps：（1）Heating is carried out except slurry is handled, to remove surface size to weaving carbon fiber；（2）The weaving carbon fiber starched and handled will be removed by heating and sandwich two layers of thermoplastic resin film, be put into vulcanizing press and carry out hot-forming for the first time, formation single layer weaving carbon fiber enhancing thermoplas tic resin composite；（3）By step（2）Gained single layer composite is trimmed, the removal recycling of extra resin flash；（4）Single layer composite superposition is put into mold, the number of plies is selected according to specifically used requirement, and progress is hot-forming for the second time, and hot pressing temperature and time are molded far below first time, acquisition laminate.Principle of the post forming method based on the repeatable processing of thermoplastic resin, for solves the problems, such as it is difficult more than the resin flash in primary method laminated into type remove and fibre bundle is easily broken up, and the designability of production can be improved.
Description
Technical field
The present invention relates to composite material application fields, and in particular to a kind of weaving carbon fiber enhancing laminated thermoplastic resin plate
Post forming method.
Background technology
The characteristics of specific strength of carbon fiber enhancement resin base composite material Yin Qigao, specific modulus, is widely used in space flight
Aviation, military project, automobile, new energy and athletic equipment industry.Wherein, carbon fiber-reinforced thermosetting resin composite materials are because of its brilliance
Performance and in occupation of highest use ratio, still, preparation method is relatively complicated, and resin curing agent and modifying agent are unfavorable
In environment and Green Development.Sight is transferred to thermoplastic resin based composite material by researcher gradually, and thermoplastic resin is with it
The processing and forming period is shorter；It is reusable；There are the processing characteristics similar to metal；It is at low cost；Low toxin, multiple
It takes the course of its own in condensation material, development speed is getting faster.However, its melt viscosity height becomes a difficulty in its production process
Point.The wellability of resin is the research emphasis of composite material, this directly affects the mechanical performance of composite material.With regard to common layer
Press technique for, to obtain infiltrating good laminate, often use high temperature and it is long when process.However, high temperature and length
Although when can improve its wellability, also bring along disadvantage：The flash of resin is more, removal is difficult and fibre bundle is broken up, greatly
Its beautiful and performance, this phenomenon is influenced greatly to become apparent in multiple layers.Therefore, it is badly in need of a kind of new preparation method solution thermoplasticity
The problem of fiber is broken up in fiber laminate, and flash difficulty removes.
Invention content
It is an object of the invention to overcome in traditional primary preparation method laminated into type, flash is more, hardly possible removes and fiber
The shortcomings that tow is broken up provides a kind of post forming preparation method of innovation.This method divides the forming process one of laminate
It is two, molding for the first time ensures performance to obtain the good composite material monomer of infiltration.It is molded for the second time in order to realize monomer
Between bonding, obtain laminate.It, can be by Infiltrating, resin flash situation first due to being molded purpose difference twice
It is solved in secondary molding.For the first time molding monomer due to the number of plies it is few, composite material is soft, and therefore, it is few that fiber breaks up situation, flash
It is few, easily remove.It is secondary to be shaped to realize bonding, forming temperature and time much smaller than first time, therefore will not occur a large amount of
Resin flash and fiber break up.
The invention is realized by the following technical scheme.
A kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate, includes the following steps：
（1）Heating is carried out except slurry is handled, to remove surface size to weaving carbon fiber according to required requirement；
（2）Stacked structure will be formed except the weaving carbon fiber of slurry processing sandwiches in two layers of thermoplastic resin film by heating, then
It is put into vulcanizing press and carries out hot-forming for the first time, the good single layer weaving carbon fiber enhancing thermoplastic resin of formation infiltration
Composite material；
（3）It carries out single layer weaving carbon fiber enhancing thermoplas tic resin composite to be trimmed to specified shape, extra resin
Flash can remove recycling, obtain single layer composite；
（4）Single layer composite superposition is put into specified mold, the number of plies is selected according to specifically used requirement, carries out second of heat
Molded, hot pressing temperature and time, obtaining weaving carbon fiber enhanced laminated thermoplastic resin plate far below being molded for the first time.
Preferably, step（1）Described in weaving carbon fiber tow width be 6mm ~ 20mm, be suitable for different broadening degree
Weaving carbon fiber.
Preferably, step（1）In heating except slurry processing be to be heated in vacuum or nitrogen atmosphere.
It is further preferred that the temperature of the heating is 400-500 DEG C, the time is 60 ~ 120min.
Preferably, step（2）Described in thermoplastic resin membrane be PC films or other thermoplastic resin membranes, thickness are
0.1~0.15mm。
Preferably, step（2）Described in first time hot-forming hot pressing temperature be 240 ~ 300 DEG C, hot pressing time is
10 ~ 15min, hot pressing pressure are 3 ~ 6MPa, and cooling time is 8 ~ 12min.
Preferably, step（2）Described in single layer weaving carbon fiber enhancing thermoplas tic resin composite thickness be 0.2
~0.3mm。
Preferably, step（3）Described in trimming be to be trimmed using tools such as paper knife, scissors and clicker press machines.
Preferably, step（4）Described in second of hot-forming temperature be 210 ~ 230 DEG C, the time be 2.5 ~
3.5min, pressure are 6 ~ 9MPa, and cooling time is 8 ~ 12min.
Preferably, step（4）Described in weaving carbon fiber enhancing laminated thermoplastic resin plate thickness be 0.4mm ~
3mm。
Compared with prior art, the invention has the advantages that and advantageous effect：
（1）Single layer weaving carbon fiber enhancing thermoplas tic resin composite's flash of the present invention hot-forming preparation for the first time is few,
Fibre bundle arrangement is neat, can solve traditional one-pass molding existing defects.
（2）Second of hot-forming temperature is low, and the time is short, efficient.The comprehensive used time and temperature twice, all well below
Domestic and international present Research.
（3）Single layer weaving carbon fiber, which enhances thermoplas tic resin composite, has thin, flexible high, easy to store, easy processing etc.
Advantage can be punched into specified shape according to user demand, improve production flexibility and designability.
（4）There is the laminate of post forming good mechanical property, bending strength to be more than 300MPa, and tensile strength is more than
350MPa, secondary forming process are stablized.
Description of the drawings
Fig. 1 is that the single layer weaving carbon fiber of hot-forming preparation enhances thermoplastic resin for the first time in the embodiment of the present invention 3
The schematic diagram of composite material and the weaving carbon fiber of second of hot-forming preparation enhancing laminated thermoplastic resin plate.
Fig. 2 is that single layer weaving carbon fiber enhances resin and fiber in thermoplas tic resin composite in the embodiment of the present invention 3
In conjunction with the super depth-of-field microscope figure of situation.
Fig. 3 is that weaving carbon fiber enhances resin and fiber combination feelings in laminated thermoplastic resin plate in the embodiment of the present invention 3
The super depth-of-field microscope figure of condition.
Specific implementation mode
To further understand the present invention, the present invention will be further described with reference to the accompanying drawings and examples, but needs
Illustrate, the scope of protection of present invention is not limited to the range of embodiment statement.
Embodiment 1
A kind of post forming preparation method of weaving carbon fiber enhancing laminated thermoplastic resin plate, includes the following steps：
（1）The weaving carbon fiber that appropriate size is chosen according to sample size is put into the processing of vacuum resistance furnace high temperature, is passed through protection
Atmosphere nitrogen；It is 500 DEG C, heating time 120min that heating temperature, which is arranged, and carbon fiber surface is coated in production process to remove
The slurry in face improves fiber and resin-bonded ability；The weaving carbon fiber tow wide cut is the 6mm not broadened.
（2）The PC films that the weaving carbon fiber that high-temperature process is crossed is sandwiched to two layers of 0.15mm thickness form stacked structure；Described
Each side size of PC films is more than carbon-fiber cloth 10mm, is taken out after PC films both sides are molded plus PI processing release papers；It will be described
Stacked structure be put into vulcanizing press carry out for the first time it is hot-forming, hot pressing temperature be 300 DEG C, hot pressing time 15min, hot pressing
Pressure is 9MPa, and cooling time, 12min was enhanced using mold water cooling to obtain infiltrating good single layer weaving carbon fiber
Thermoplas tic resin composite, thickness 0.32mm；
（3）The single layer weaving carbon fiber enhancing thermoplas tic resin composite of preparation is passed through into paper knife, scissors and clicker press machine
Equal tools carry out being trimmed to specified shape, and extra resin flash can remove recycling；
（4）The single layer composite superposition of designated shape is put into specified mold, the number of plies is selected as 7 layers, hot pressing temperature 230
DEG C, hot pressing time 3.5min, hot pressing pressure 6MPa, cooling time 10min, single layer composite surface resin layer is mutual
Bonding, forming weaving carbon fiber enhances laminated thermoplastic resin plate.
In the present embodiment, the standby single layer weaving carbon fiber of first time hot pressing enhances thermoplas tic resin composite's monomer
Flexible preferably resin flash situation is less, and fiber architecture is neat, and without obviously situation is broken up, easy processing is cut out, resin infiltration compared with
Good, fiber is stablized with resin-bonded.The performance of the standby weaving carbon fiber enhancing laminated thermoplastic resin plate of second of hot pressing is steady
Fixed, easy to process, shaping efficiency is high, good mechanical performance：Tensile strength is more than 350MPa, and bending strength is more than 300MPa, single
It is combined between body and monomer, no lamination.Show the post forming preparation method, the tree that one-pass molding is brought can be solved
The problem of seborrhea material is more, and hardly possible removal and fiber architecture are easily broken up, and it is suitble to flexible manufacturing, save power consumption of polymer processing.
Embodiment 2
A kind of post forming preparation method of weaving carbon fiber enhancing laminated thermoplastic resin plate, includes the following steps：
（1）The weaving carbon fiber that appropriate size is chosen according to sample size is put into the processing of vacuum resistance furnace high temperature, is passed through protection
Atmosphere nitrogen；It is 450 DEG C, heating time 90min that heating temperature, which is arranged, and carbon fiber surface is coated in production process to remove
Slurry, improve fiber and resin-bonded ability；The weaving carbon fiber tow wide cut is the 14mm of broadening.
（2）The PC films that the weaving carbon fiber that high-temperature process is crossed is sandwiched to two layers of 0.125mm thickness form stacked structure；Described
Each side size of PC films is more than carbon-fiber cloth 10mm, is taken out after PC films both sides are molded plus PI processing release papers；It will be described
Stacked structure be put into vulcanizing press carry out for the first time it is hot-forming, hot pressing temperature be 260 DEG C, hot pressing time 12.5min, heat
Pressure pressure is 7.5MPa, cooling time 10min, using mold water cooling, to obtain infiltrating good single layer weaving carbon fiber
Enhance thermoplas tic resin composite, thickness 0.28mm；
（3）The single layer weaving carbon fiber enhancing thermoplas tic resin composite of preparation is passed through into paper knife, scissors and clicker press machine
Equal tools carry out being trimmed to specified shape, and extra resin flash can remove recycling；
（4）The single layer composite superposition of designated shape is put into specified mold, the number of plies is selected as 7 layers, hot pressing temperature 220
DEG C, hot pressing time 3min, hot pressing pressure 3MPa, cooling time 10min, single layer composite surface resin layer glues mutually
It connects, forming weaving carbon fiber enhances laminated thermoplastic resin plate.
In the present embodiment, the standby single layer weaving carbon fiber of first time hot pressing enhances thermoplas tic resin composite's monomer
Flexible preferably resin flash situation is less, and fiber architecture is neat, and without obviously situation is broken up, easy processing is cut out, resin infiltration compared with
Good, fiber is stablized with resin-bonded.The performance of the standby weaving carbon fiber enhancing laminated thermoplastic resin plate of second of hot pressing is steady
Fixed, easy to process, shaping efficiency is high, good mechanical performance：Tensile strength is more than 350MPa, and bending strength is more than 300MPa, single
It is combined between body and monomer, no lamination.Show the post forming preparation method, the tree that one-pass molding is brought can be solved
The problem of seborrhea material is more, and hardly possible removal and fiber architecture are easily broken up, and it is suitble to flexible manufacturing, save power consumption of polymer processing.
Embodiment 3
A kind of post forming preparation method of weaving carbon fiber enhancing laminated thermoplastic resin plate, includes the following steps：
（1）The weaving carbon fiber that appropriate size is chosen according to sample size is put into the processing of vacuum resistance furnace high temperature, is passed through protection
Atmosphere nitrogen；It is 400 DEG C, heating time 60min that heating temperature, which is arranged, and carbon fiber surface is coated in production process to remove
Slurry, improve fiber and resin-bonded ability；The weaving carbon fiber tow wide cut is the 20mm of broadening.
（2）The PC films that the weaving carbon fiber that high-temperature process is crossed is sandwiched to two layers of 0.1mm thickness form stacked structure；The PC
Each side size of film is more than carbon-fiber cloth 10mm, is taken out after PC films both sides are molded plus PI processing release papers；By the heap
Stack structure be put into vulcanizing press carry out for the first time it is hot-forming, hot pressing temperature be 240 DEG C, hot pressing time 10min, hot pressing pressure
Power is 6MPa, and cooling time, 8min using mold water cooling enhanced thermoplastic to obtain infiltrating good single layer weaving carbon fiber
Property resin composite materials 1（See Fig. 1）, thickness 0.24mm；The single layer weaving carbon fiber enhances in thermoplas tic resin composite
Resin and the super depth-of-field microscope figure of fiber combination situation are as shown in Figure 2.
（3）The single layer weaving carbon fiber enhancing thermoplas tic resin composite of preparation is passed through into paper knife, scissors and punching
The tools such as sanction machine carry out being trimmed to specified shape, and extra resin flash can remove recycling；
（4）The single layer composite superposition of designated shape is put into specified mold, the number of plies is selected as 7 layers, hot pressing temperature 210
DEG C, hot pressing time 2.5min, hot pressing pressure 6MPa, cooling time 10min, single layer composite surface resin layer is mutual
Bonding forms weaving carbon fiber enhancing laminated thermoplastic resin plate 2（See Fig. 1）, weaving carbon fiber enhancing laminated thermoplastic resin
Resin and the super depth-of-field microscope figure of fiber combination situation are as shown in Figure 3 in plate.
In the present embodiment, the standby single layer weaving carbon fiber of first time hot pressing enhances thermoplas tic resin composite's monomer
Flexible, resin flash situation is few, and fiber architecture is neat, and without obviously situation is broken up, easy processing is cut out, and resin infiltration is preferable, fine
Dimension is stablized with resin-bonded.The performance of the standby weaving carbon fiber enhancing laminated thermoplastic resin plate of second of hot pressing is stablized, and adds
Work is convenient, and shaping efficiency is high, good mechanical performance：Tensile strength is more than 350MPa, and bending strength is more than 300MPa, monomer and list
It is combined between body, no lamination.Show the post forming preparation method, the resin flash that one-pass molding is brought can be solved
It is more, hardly possible removal and fiber architecture the problem of easily breaking up, and it is suitble to flexible manufacturing, save power consumption of polymer processing.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
The all any modification, equivalent and improvement etc. done within spirit and principle, should be included in the protection of the claims in the present invention
Within the scope of.
Claims (10)
1. a kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate, which is characterized in that including walking as follows
Suddenly：
（1）Heating is carried out except slurry is handled, to remove surface size to weaving carbon fiber；
（2）Stacked structure will be formed except the weaving carbon fiber of slurry processing sandwiches in two layers of thermoplastic resin film by heating, then
It is put into vulcanizing press and carries out hot-forming for the first time, formation single layer weaving carbon fiber enhancing thermoplas tic resin composite；
（3）Single layer weaving carbon fiber enhancing thermoplas tic resin composite is trimmed, the removal recycling of extra resin flash,
Obtain single layer composite；
（4）Single layer composite superposition is put into mold, the number of plies is selected according to specifically used requirement, is hot pressed into for the second time
Type, obtaining weaving carbon fiber enhances laminated thermoplastic resin plate.
2. according to the method described in claim 1, it is characterized in that, step（1）Described in weaving carbon fiber tow width be
6mm~20mm。
3. according to the method described in claim 1, it is characterized in that, step（1）In heating except slurry processing be in vacuum or
It is heated in nitrogen atmosphere.
4. according to the method described in claim 3, it is characterized in that, the temperature of the heating be 400-500 DEG C, the time be 60 ~
120min。
5. according to the method described in claim 1, it is characterized in that, step（2）Described in thermoplastic resin membrane be PC films,
Thickness is 0.1 ~ 0.15mm.
6. according to the method described in claim 1, it is characterized in that, step（2）Described in first time hot-forming hot pressing
Temperature is 240 ~ 300 DEG C, and hot pressing time is 10 ~ 15min, and hot pressing pressure is 3 ~ 6MPa, and cooling time is 8 ~ 12min.
7. according to the method described in claim 1, it is characterized in that, step（2）Described in single layer weaving carbon fiber enhancing heat
The thickness of thermoplastic resin composite material is 0.2 ~ 0.3mm.
8. according to the method described in claim 1, it is characterized in that, step（3）Described in trimming be using paper knife, scissors
And clicker press machine is trimmed.
9. according to the method described in claim 1, it is characterized in that, step（4）Described in second of hot-forming temperature
It it is 210 ~ 230 DEG C, the time is 2.5 ~ 3.5min, and pressure is 6 ~ 9MPa, and cooling time is 8 ~ 12min.
10. according to the method described in claim 1, it is characterized in that, step（4）Described in weaving carbon fiber enhance thermoplasticity
The thickness of resin laminate is 0.4mm ~ 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810099068.8A CN108327311A (en) | 2018-01-31 | 2018-01-31 | A kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate |
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| CN201810099068.8A CN108327311A (en) | 2018-01-31 | 2018-01-31 | A kind of post forming method of weaving carbon fiber enhancing laminated thermoplastic resin plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837759A (en) * | 2022-12-12 | 2023-03-24 | 电子科技大学 | Basalt fiber reinforced polypropylene composite material and preparation method and application thereof |
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| CN101845232A (en) * | 2010-04-29 | 2010-09-29 | 中国科学院宁波材料技术与工程研究所 | Thermoplastic resin-based carbon fiber composite and preparation method thereof |
| CN102886902A (en) * | 2012-10-12 | 2013-01-23 | 四川大学 | Method for improving impregnation effect of fiber cloth enhanced thermoplastic composite material |
| CN106042414A (en) * | 2016-05-29 | 2016-10-26 | 王正 | Automobile inner decoration mold-pressed profile preparation technique through wood fiber double mold pressing method |
| CN106476403A (en) * | 2016-09-30 | 2017-03-08 | 华南理工大学 | A kind of carbon-fiber cloth strengthens ultra-thin sheet material of thermoplastic resin and preparation method thereof |
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2018
- 2018-01-31 CN CN201810099068.8A patent/CN108327311A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845232A (en) * | 2010-04-29 | 2010-09-29 | 中国科学院宁波材料技术与工程研究所 | Thermoplastic resin-based carbon fiber composite and preparation method thereof |
| CN102886902A (en) * | 2012-10-12 | 2013-01-23 | 四川大学 | Method for improving impregnation effect of fiber cloth enhanced thermoplastic composite material |
| CN106042414A (en) * | 2016-05-29 | 2016-10-26 | 王正 | Automobile inner decoration mold-pressed profile preparation technique through wood fiber double mold pressing method |
| CN106476403A (en) * | 2016-09-30 | 2017-03-08 | 华南理工大学 | A kind of carbon-fiber cloth strengthens ultra-thin sheet material of thermoplastic resin and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115837759A (en) * | 2022-12-12 | 2023-03-24 | 电子科技大学 | Basalt fiber reinforced polypropylene composite material and preparation method and application thereof |
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Application publication date: 20180727 |