CN103994031B - A kind of carbon fibre fabric strengthens polymer matrix composites main beam cap and manufacture method thereof - Google Patents
A kind of carbon fibre fabric strengthens polymer matrix composites main beam cap and manufacture method thereof Download PDFInfo
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- CN103994031B CN103994031B CN201410215962.9A CN201410215962A CN103994031B CN 103994031 B CN103994031 B CN 103994031B CN 201410215962 A CN201410215962 A CN 201410215962A CN 103994031 B CN103994031 B CN 103994031B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention discloses a kind of fan blade carbon fibre fabric and strengthens polymer matrix composites main beam cap and manufacture method thereof, carbon fibre fabric strengthens polymer matrix composites main beam cap and is made up of carbon fiber stitch bonded fabric strongthener and glycidyl ester epoxy resin system, both the paving having met vacuum suck technique covers efficiency and charging efficiency demand, take into account again the requirement that carbon fiber mechanical property is utilized by main beam cap well, significantly improve the mechanical property of carbon fiber stitch bonded fabric matrix material and the structural strength of carbon fabric composite material main beam cap. The present invention by vacuum suck technique and remove after have employed middle low temperature Procuring minor handicraft, then in the curing cycle of hot setting, both overcome the hidden danger of the not resistance to middle high temperature of minor handicraft, effectively ensure that again the structural mechanical property of main beam cap.
Description
Technical field
The present invention relates to a kind of carbon fibre fabric and strengthen polymer matrix composites main beam cap and manufacture method thereof, particularly relate to a kind of carbon fiber composite material main beam cap for fan blade and manufacture method thereof, belong to fan blade manufacturing technology field.
Background technology
Composite wind turbine blade is the key part of wind-force power generation system, directly affects the performance of whole system. Main beam cap (also known as crossbeam) is main power of the holding parts of blade, is the product of a kind of large size, heavy thickness, and longitudinal length along fan blade extends usually, and its Design and manufacture quality level is very important. The material and technology that current blade girder cap extensively adopts is glass fibre stitch bonded fabric enhancing polymer matrix composites and vacuum suck technique (vacuumresininfusion) mainly. In recent years, along with aerogenerator is to high-power and/or low velocity wind field orientation development, fan blade length constantly increases, more the carbon-fibre composite fan blade of light high performance has been more preferably select, blade girder cap is then the first-selected application site of carbon fiber in composite wind turbine blade, such as US5617807 (A), CN101749173A, CN101539116A, US2010104447 (A1), CN102465826 etc.
Develop in selection course at glass fiber compound material main beam cap moulding process, the reason of (be vacuum bag pressure) high deficiency of impregnation technology specification of quality in view of monofilament prepreg comprehensive cost (such as the preparation of monofilament prepreg, low-temperature storage and low-temperature transport and paving environment for use factor etc.) in monofilament prepreg low pressure molding technique is high, paving processing quality requires high and low pressure, the material technology mainly glass fibre stitch bonded fabric resin vacuum absorbing process that current blade glass fiber compound material main beam cap extensively adopts. Although patent CN101749173A is referred to carbon fiber composite material main beam cap can adopt prepeg process or resin injection manufacture technics, but in prior art, carbon fiber composite material main beam cap is still general adopts monofilament prepeg process (prepregmolding) to manufacture, such as CN101526070A, CN200910028100.4, CN200910028101.9 etc. Its reason is mainly owing to comparing with glass fibre, carbon fiber is thinner, effectively dipping difficulty is bigger, when adopting the carbon fiber main beam cap that traditional vacuum suck technique and resin system thereof manufacture large size heavy thickness, its dipping recombining process effect and quality (mainly mechanical property) are general not good. Current blade girder cap vacuum suck technique epoxy-resin systems main body is bisphenol A epoxide resin system, it is generally the bisphenol A epoxide resin system adding thinner, or so-called " latent " low viscosity epoxy resin system (resin system viscosity being reduced further by improving the method for technological operation temperature).
Taking 3TEX company, GEC(global energy concept company) and TPI company etc. then attempt the structure formation aspect from reinforced fabric as the company of representative and improve, its scheme is substantially all adopt carbon fibers/fiberglass to mix three axial fabricses (the UniGirderTM fabric etc. such as the exploitation of 3TEX company) to replace carbon fiber loop bonding one-way fabric, improves vacuum suck process resin system perfusion impregnating speed to reach, avoids the object producing the defects such as dry spot. Result of study shows, although adopting special carbon fiber stitch bonded fabric, during employing traditional vacuum absorbing process, resin easily pours into, but owing to being limited by the constraint of woven fabric structure, the performance of its matrix material is restricted, and especially compressive strength is poor.
Visible, pay close attention to and research although the vacuum suck technique of carbon fiber composite material main beam cap causes already, but current material and vacuum suck technique also are difficult to obtain high performance carbon fiber main beam cap.
Summary of the invention
The technology of the present invention is dealt with problems and is: the above-mentioned deficiency overcoming prior art, it is provided that a kind of fan blade, the high-performance carbon fibre reinforced resin based composites main beam cap with good impregnating effect and excellent mechanical performance and manufacture method thereof.
The technical solution of the present invention is: a kind of carbon fibre fabric strengthens polymer matrix composites main beam cap, main beam cap adopts the carbon fibre fabric that form with carbon fiber stitch bonded fabric of glycidyl ester epoxy resin system to strengthen polymer matrix composites and manufactures in forming mould and become, described carbon fiber stitch bonded fabric through great in 200g/m to material employing face2Carbon fibre thread, broadwise material adopts glass fibre, carbon fiber or aramid fiber, and the face of broadwise material is heavily less than through heavy by 3.8% to material face, on the basis meeting plant structure stability and instillation process, to improve as far as possible through to the performance of aspect.
In carbon fiber stitch bonded fabric, the interval of broadwise material is more than or equal to 10mm, fineness is less than or equals 68tex.
Epoxy-resin systems is made up of TDE85 epoxy resin and amine curing agent or is made up of TDE85 epoxy resin, liquid acid anhydride curing agents and promotor.
The mass ratio of described TDE85 epoxy resin and amine curing agent is 100:(54 �� 2), the mass ratio of described TDE85 epoxy resin, liquid acid anhydride curing agents and promotor is 100:(129 �� 2): (1 �� 0.2).
Carbon fibre fabric strengthens a manufacture method for polymer matrix composites main beam cap, following steps:
(1) first coating releasing agent on main beam cap forming mould, then on main beam cap forming mould, paving puts release cloth water conservancy diversion net, carbon fiber stitch bonded fabric successively, then puts release cloth on carbon fiber stitch bonded fabric upper berth;
(2) put sealed strip main beam cap forming mould surrounding paving, then arrange resin glue inlet tube and extraction pipe, forming die system is sealed good with vacuum bag film and sealed strip afterwards, utilize extraction pipe to be vacuumized by forming mould;
(3) under vacuum pressure and 35 DEG C �� 5 DEG C temperature condition, the epoxy-resin systems mixed is injected on carbon fiber stitch bonded fabric by resin glue inlet tube, makes epoxy-resin systems thorough impregnation in carbon fiber stitch bonded fabric;
(4) main beam cap forming mould is heated, Procuring 2-4 hour under vacuum pressure and 60-90 DEG C of temperature;
(5) make below forming mould Temperature fall to 40 DEG C, and then forming mould is warming up to 130-180 DEG C, solidify 2.5-3.5 hour;
(6) making forming mould Temperature fall to room temperature, the demoulding, processing, namely obtain carbon fibre fabric reinforced composite main beam cap.
The present invention compared with prior art has following useful effect:
(1) present invention employs the basic resin system of glycidyl ester class TDE85 epoxy-resin systems as carbon fiber stitch bonded fabric main beam cap, system viscosity is low, carbon fiber wetting property is good, effectively improves the mechanical property of carbon fiber stitch bonded fabric matrix material and structural strength, the especially compressive strength of carbon fiber stitch bonded fabric main beam cap.
(2) material of optimization design of the present invention main beam cap vacuum suck technique carbon fiber stitch bonded fabric and structure formation thereof, both the paving having met vacuum suck technique covers efficiency and charging efficiency demand, take into account again the requirement that carbon fiber mechanical property is utilized by main beam cap well, for the raising of mechanical property and the structural strength lifting of carbon fabric composite material main beam cap of carbon fiber stitch bonded fabric matrix material is laid a good foundation.
(3) the present invention's innovation removes the curing cycle of minor handicraft, then middle hot setting after have employed middle low temperature Procuring, had both overcome the hidden danger of the not resistance to middle high temperature of minor handicraft, and effectively ensure that again the structural mechanical property of main beam cap.
Accompanying drawing explanation
Fig. 1 is the manufacturing flow chart of the present invention.
Embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is described in further detail, so that those skilled in the art understand present aspect further, and does not form limiting to the claimed invention:
A kind of carbon fibre fabric strengthens polymer matrix composites main beam cap, main beam cap adopts the carbon fibre fabric that form with carbon fiber stitch bonded fabric of glycidyl ester epoxy resin system to strengthen polymer matrix composites and manufactures in forming mould and become, described carbon fiber stitch bonded fabric through great in 200g/m to material employing face2Carbon fibre thread, broadwise material adopts glass fibre, carbon fiber or aramid fiber, and the face of broadwise material is heavily less than through heavy by 3.8% to material face, on the basis meeting plant structure stability and instillation process, to improve as far as possible through to the performance of aspect. In carbon fiber stitch bonded fabric, the interval of broadwise material is more than or equal to 10mm, fineness is less than or equals 68tex. Epoxy-resin systems is made up of TDE85 epoxy resin and amine curing agent or is made up of TDE85 epoxy resin, liquid acid anhydride curing agents and promotor. The mass ratio of TDE85 epoxy resin and amine curing agent is 100:(54 �� 2), the mass ratio of described TDE85 epoxy resin, liquid acid anhydride curing agents and promotor is 100:(129 �� 2): (1 �� 0.2).
Embodiment 1: a kind of carbon fibre fabric strengthens polymer matrix composites main beam cap, adopts carbon fiber stitch bonded fabric as strongthener, adopts glycidyl ester epoxy resin system as matrix resin. Carbon fiber stitch bonded fabric, through being the heavy 216g/m in face to material2SYT45 carbon fibre thread, broadwise be the heavy 8g/m in face2The composition such as 68tex glass fiber yarn, wherein weft yarn is spaced apart 10mm; Glycidyl ester epoxy resin system adopts TDE85 epoxy resin+amine curing agent.
The manufacture method of main beam cap, as shown in Figure 1, specifically comprises the steps:
(1) first coating releasing agent on main beam cap forming mould, then paving puts the minor handicrafts such as release cloth water conservancy diversion net, and paving puts described carbon fiber stitch bonded fabric afterwards, then paving puts the minor handicrafts such as release cloth successively on carbon fiber stitch bonded fabric;
(2) put sealed strip main beam cap forming mould surrounding paving, then arrange resin glue inlet tube and extraction pipe, make system finishing sealing good with vacuum bag film and sealed strip afterwards;
(3) under vacuum pressure and 35 DEG C of temperature condition, the resin system mixed is injected on carbon fiber stitch bonded fabric strongthener by resin glue inlet tube, makes resin system thorough impregnation carbon fiber stitch bonded fabric strongthener;
(4) mold heating system bottom main beam cap forming mould, Procuring 3 hours under vacuum pressure and 60 DEG C of temperature is opened;
(5), below Temperature fall to 40 DEG C, remove minor handicraft, then it is warming up to 160 DEG C, solidifies 3 hours;
(6) Temperature fall is to room temperature, and the demoulding, processing, namely obtain carbon fibre fabric reinforced composite main beam cap.
Embodiment 2: a kind of carbon fibre fabric strengthens polymer matrix composites main beam cap, adopts carbon fiber stitch bonded fabric as strongthener, adopts glycidyl ester epoxy resin system as matrix resin. Carbon fiber stitch bonded fabric, through being the heavy 216g/m in face to material2SYT45 carbon fibre thread, broadwise be the heavy 8g/m in face2The composition such as 68tex glass fiber yarn, wherein weft yarn is spaced apart 10mm; Described glycidyl ester epoxy resin system, it is characterised in that described epoxy-resin systems is TDE85 epoxy resin+acid anhydride type curing agent+promotor.
The manufacture method of main beam cap specifically comprises the steps:
(1) first coating releasing agent on main beam cap forming mould, then paving puts the minor handicrafts such as release cloth water conservancy diversion net, and paving puts described carbon fiber stitch bonded fabric afterwards, then paving puts the minor handicrafts such as release cloth successively on carbon fiber stitch bonded fabric;
(2) put sealed strip main beam cap forming mould surrounding paving, then arrange resin glue inlet tube and extraction pipe, make system finishing sealing good with vacuum bag film and sealed strip afterwards;
(3) under vacuum pressure and 35 DEG C of temperature condition, the resin system mixed is injected on carbon fiber stitch bonded fabric strongthener by resin glue inlet tube, makes resin system thorough impregnation carbon fiber stitch bonded fabric strongthener;
(4) mold heating system bottom main beam cap forming mould, Procuring 3 hours under vacuum pressure and 90 DEG C of temperature is opened;
(5), below Temperature fall to 40 DEG C, remove minor handicraft, then it is warming up to 180 DEG C, solidifies 3 hours;
(6) Temperature fall is to room temperature, and namely the demoulding, processing obtain carbon fibre fabric reinforced composite main beam cap. Contrast implementation result
Adopting the performance of the main beam cap matrix material prepared when existing resin and vacuum suck technique thereof relatively low, especially compressive strength is poor. The material technology technology of the present invention, can make carbon fibre fabric strengthen polymer matrix composites main beam cap mechanical property be significantly improved, especially compressive strength can improve more than 30%, effectively overcome the above-mentioned deficiency of prior art.
Above embodiments of the invention are explained in detail, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, also can make various change under the prerequisite not departing from objective of the present invention.
Claims (5)
1. the manufacture method of a carbon fibre fabric enhancing polymer matrix composites main beam cap, it is characterised in that comprise the steps:
(1) first coating releasing agent on main beam cap forming mould, then on main beam cap forming mould, paving puts release cloth water conservancy diversion net, carbon fiber stitch bonded fabric successively, then puts release cloth on carbon fiber stitch bonded fabric upper berth;
(2) put sealed strip main beam cap forming mould surrounding paving, then arrange resin glue inlet tube and extraction pipe, forming die system is sealed good with vacuum bag film and sealed strip afterwards, utilize extraction pipe to be vacuumized by forming mould;
(3) under vacuum pressure and 35 DEG C �� 5 DEG C temperature condition, the epoxy-resin systems mixed is injected on carbon fiber stitch bonded fabric by resin glue inlet tube, makes epoxy-resin systems thorough impregnation in carbon fiber stitch bonded fabric;
(4) main beam cap forming mould is heated, Procuring 2-4 hour under vacuum pressure and 60-90 DEG C of temperature;
(5) make below forming mould Temperature fall to 40 DEG C, and then forming mould is warming up to 130-180 DEG C, solidify 2.5-3.5 hour;
(6) making forming mould Temperature fall to room temperature, the demoulding, processing, namely obtain carbon fibre fabric reinforced composite main beam cap.
2. a kind of carbon fibre fabric according to claim 1 strengthen polymer matrix composites main beam cap manufacture method, it is characterised in that: described carbon fiber stitch bonded fabric through to material adopt face great in 200g/m2Carbon fibre thread, broadwise material adopts glass fibre, carbon fiber or aramid fiber, and the face of broadwise material is heavily less than through heavy by 3.8% to material face.
3. a kind of carbon fibre fabric according to claim 2 strengthens the manufacture method of polymer matrix composites main beam cap, it is characterised in that: in described carbon fiber stitch bonded fabric, the interval of broadwise material is more than or equal to 10mm, fineness is less than or equals 68tex.
4. a kind of carbon fibre fabric according to claim 1 strengthens the manufacture method of polymer matrix composites main beam cap, it is characterised in that: described epoxy-resin systems is made up of TDE85 epoxy resin and amine curing agent or is made up of TDE85 epoxy resin, liquid acid anhydride curing agents and promotor.
5. a kind of carbon fibre fabric according to claim 4 strengthens the manufacture method of polymer matrix composites main beam cap, it is characterized in that: the mass ratio of described TDE85 epoxy resin and amine curing agent is 100:(54 �� 2), the mass ratio of described TDE85 epoxy resin, liquid acid anhydride curing agents and promotor is 100:(129 �� 2): (1 �� 0.2).
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| CN201410215962.9A CN103994031B (en) | 2014-05-21 | 2014-05-21 | A kind of carbon fibre fabric strengthens polymer matrix composites main beam cap and manufacture method thereof |
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| CN201410215962.9A CN103994031B (en) | 2014-05-21 | 2014-05-21 | A kind of carbon fibre fabric strengthens polymer matrix composites main beam cap and manufacture method thereof |
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| CN104554701B (en) * | 2015-01-23 | 2016-07-06 | 南京航空航天大学 | Suturing skill reinforced foam sandwich shape for hat Material Stiffened Panel structure and forming method thereof |
| CN105365079B (en) * | 2015-11-20 | 2017-09-29 | 明阳智慧能源集团股份公司 | A kind of spar cap flange component and preparation method being switched fast |
| CN105538737B (en) * | 2015-12-14 | 2019-01-04 | 中材科技股份有限公司 | A kind of preparation method of hollow core filled composite material |
| CN108794989A (en) * | 2018-06-29 | 2018-11-13 | 江苏恒神股份有限公司 | A kind of preparation method of the fluid die resin and fluid die of medium temperature application |
| CN109912934A (en) * | 2019-04-01 | 2019-06-21 | 上海汉禾生物新材料科技有限公司 | A kind of lignin epoxide resin/carbon fibre reinforced composite |
| CN112175348A (en) * | 2020-09-22 | 2021-01-05 | 垒途智能教科技术研究院江苏有限公司 | High-safety carbon fiber composite material and preparation method thereof |
| CN114855353A (en) * | 2022-05-19 | 2022-08-05 | 浙江理工大学 | Memory alloy wire and fiber mixed weaving process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5617807A (en) * | 1993-10-14 | 1997-04-08 | Isomat, Inc. | Carbon fiber spar and method of making |
| US7758313B2 (en) * | 2006-02-13 | 2010-07-20 | General Electric Company | Carbon-glass-hybrid spar for wind turbine rotorblades |
| US20100143142A1 (en) * | 2008-12-11 | 2010-06-10 | Afroz Akhtar | Sparcap system for wind turbine rotor blade and method of fabricating wind turbine rotor blade |
| CN101539116A (en) * | 2009-01-15 | 2009-09-23 | 南通东泰电工材料有限公司 | Carbon fiber beam for blades of wind-powered generator |
| US20110142662A1 (en) * | 2010-10-28 | 2011-06-16 | General Electric Company | Spar Cap Assembly for a Wind Turbine Rotor Blade |
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