CN104761880A - Short-fiber-reinforced pultrusion composite material solar energy assembly frame and preparation method thereof - Google Patents
Short-fiber-reinforced pultrusion composite material solar energy assembly frame and preparation method thereof Download PDFInfo
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- CN104761880A CN104761880A CN201510116640.3A CN201510116640A CN104761880A CN 104761880 A CN104761880 A CN 104761880A CN 201510116640 A CN201510116640 A CN 201510116640A CN 104761880 A CN104761880 A CN 104761880A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a short-fiber-reinforced pultrusion composite material solar energy assembly frame, which is characterized by being produced through a pultrusion method and being composed of following components, by volume: 5-10% of short fibers, 50-80% of continuous fibers and 10-40% of resin. The invention also discloses a preparation method of the solar energy assembly frame. In the method, a short fiber reinforcement body is added for solving a problem of insufficient strength in the vertical direction of the fiber when a continuous reinforced pultrusion composite material is used as the solar energy assembly frame. The continuous fiber is impregnated in the resin mixture, in which 5-10% by volume of the short fibers is dispersed homogeneously, and then the impregnated continuous fiber is injected into a die for obtain the solar energy assembly frame through pultrusion. The short fibers can form an overlap joint structure among the continuous fiber so that the performance in the vertical direction of the fibers in the material can be improved. Not only is the excellent performance in the direction in parallel with the fibers ensured, but also an excellent mechanical performance in the vertical direction of the fibers can be ensured at the same time.
Description
Technical field
The present invention relates to a kind of pultrusion composite materials section bar, especially relate to a kind of short fiber reinforced pultrusion composite materials solar components frame and preparation method thereof.
Background technology
Along with environment situation goes from bad to worse, the demand of people to clean energy is increasing, and sun power is more and more paid attention to as a kind of renewable resources.Solar energy resources has played certain effect in daily life, such as, and the use of solar water heater and photovoltaic generation.The material that solar facilities uses in use will experience sunlight and irradiates for a long time, therefore needs to have good weathering resistance and anti-ultraviolet ability to improve weather resistance and the reliability of equipment.
Material at present for solar components frame is mostly aluminum alloy materials, but, adopt aluminium section bar to produce solar module frame and there is following problem: production efficiency is low, high expensive; Corrosion-resistant, anode oxide film in use very easily scratches, and scratches position resistance to corrosion and sharply declines; Poor insulativity, the biasing problem caused when needing ground connection lightning protection and ground connection to install can promote PID effect; Thermal expansivity comparatively glass is high, and matching is poor, and thermal shock resistance is poor; Shock resistance, fatigue resistance be poor, easily produce plastic deformation.
Due to above-mentioned aluminium alloy component defect, sight is turned to the frame using continuous fiber reinforced thermoplastic resin matrix material as solar photovoltaic assembly by investigator, adopts pultrusion mode to carry out shape extrusion.Pultrusion continuous fiber reinforced thermoplastic resin composite material section bar has following characteristics: 1, intensity is high, and the glass fiber reinforced plastic shapes that directional glass fiber strengthens can reach 900MPa along fiber direction intensity; 2, good insulating, without the need to ground connection lightning protection, can effectively avoid PID effect; 3, heat-drawn wire is high, and the heat-drawn wire of drawing and extruding section bar is 186 DEG C, does not soften under high temperature, and-60 DEG C do not become fragile, and ensure that the normal use under various envrionment temperature; 4, deformation rate is low, and geometrical shape and size can maintain a long-term stability; 5, the strong and feature such as its production technique has lower noise, high-level efficiency, power consumption is low, contaminative is little of erosion resistance.Therefore the frame replacing aluminium alloy as solar photovoltaic assembly is expected to.But pultrusion continuous fiber reinforced composite materials section bar is still not extensive as the use of solar components frame at present, and reason is that pultrusion continuous fiber reinforced composite materials exists the problem of structural strength deficiency because the structure of solar components frame is special.Therefore, can the problem solving structural strength deficiency most important as the use of solar components frame for pultrusion continuous fiber reinforced composite materials section bar.
Address this problem conventional strongtheners such as mostly adopting yarn, continuous fibre felt, fabric at present to strengthen the mechanical property in its vertical fibers direction, existing prepare in the patent of solar components frame published, as in Chinese patent CN103302872A, glass fibre is one in thick glass fibre, glass fiber surface felt, Woven glass cloth or at least two kinds of combinations; Equally, in Chinese patent CN103205004A, described fibre reinforcement is the mixture of blend fiber and blend fiber fabric, the intensity in solar components frame vertical fibers direction is strengthened with this, though adopt the object that can reach in this way and strengthen its vertical fibers direction intensity, but its preparation technology is more complicated.
Summary of the invention
The object of the invention is to utilize short fiber reinforced to solve the problem of pultrusion composite materials solar components border structure undercapacity, in resin impregnation material, staple fibre is added at pultrusion process, and be dispersed in resin, the section bar middle short fiber obtained is made to form overlap joint between continuous fibre, make up the performance of continuous fiber reinforced thermoplastic composite material in vertical fibers direction not enough, make its performance more excellent, the simply good operation of its technique, cost also can not obviously increase, result is easy to control, and also can carry out flexible according to the actual requirements.
Technical scheme of the present invention is:
The invention provides a kind of short fiber reinforced pultrusion composite materials solar components frame, this solar components frame is prepared by pultrusion molding process, comprise staple fibre, continuous fibre and resin, the volume percent of each component is: staple fibre 5%-10%, continuous fibre 50%-80%, resin 10%-40%.
As preferably, described staple fibre is one or more in glass fibre, aramid fiber, carbon fiber, basalt fibre, nylon fiber, trevira and superhigh molecular weight polyethylene fibers, its length≤6mm.Described staple fibre, is uniformly distributed in resin compound as dispersions such as heated and stirred or pressurized air blow through corresponding dispersing mode.
As preferably, described continuous fiber is continuous glass fibre or carbon fiber, diameter 1-30 μm.
As preferably, also additive is included in described solar components frame, the content of described additive is the 0-15% of resin volume content, and described additive is one or more in dispersion agent, releasing agent, fire retardant, tinting material, coupling agent, solidifying agent, UV light absorber.
As preferably, described resin is urethane resin, unsaturated polyester, Vinylite, epoxy resin, resol, furane resin, with one or more in the methylbenzene e pioic acid methyl ester resin that is monomer.
Present invention also offers the method preparing above-mentioned solar components frame, its preparation process is:
(1) suitable dispersion agent and dispersing mode is selected according to different types of staple fibre, staple fibre is pre-dispersed, to ensure that it can be uniformly distributed in the resin mixture;
(2) by percent by volume be 10%-40% liquid resin, 5%-10% staple fibre mixing obtain resin compound; The preparation for sun power border component, the used in amounts of staple fibre will carry out choose reasonable, and the fiber number that can retrain matrix when staple fibre consumption is too small is less, and thus dilution effect is remarkable, reduces tensile strength; When staple fibre consumption is excessive, because adding of staple fibre increases gelatin viscosity, glue and mould in pultrusion process can be made to rub greatly, pultrusion difficulty; Select this volume fraction to be conducive to by the effective stress transmission of matrix to fiber, reach the object strengthening transverse strength.
(3) by percent by volume be 50%-80% dipping coupling agent and dry continuous fibre flood in the resin mixture; The impregnation time, 15 ~ 20s was advisable, and was as the criterion to ensure that fiber is soaked into.
(4) utilizing forming machine using drawing and extrusion, is 150 DEG C-210 DEG C in die temperature, and pulling speed is under 1m/min-3m/min condition, carries out forming operation and cutting operation to obtain required sun power border component to the continuous fibre flooding resin compound.For the final molding of sun power border component, die temperature and pulling speed etc. also play the effect of outbalance, and the too low resin that can not make of die temperature solidifies completely; Temperature is too high, and one is waste energy, and two is the internal stresss that possible increase goods, affects dimensional stability and its mechanical property of goods, even may make resin matrix cracking and affect product properties.Pulling speed then should regulate according to factors such as resin matrix chemical reaction characteristic, mold temperature distribution, die lengths, pulling speed is excessively slow, resin is long at In-mold residence times, gelation point and dispersal point forward, demoulding difficulty can be caused, otherwise resin solidification then can be made not exclusively to affect the performance of goods.
As preferably, staple fibre used in above-mentioned steps (1) is one or more in glass fibre, aramid fiber, carbon fiber, basalt fibre, nylon fiber, trevira and superhigh molecular weight polyethylene fibers, its length≤6mm.
As preferably, continuous fibre used in above-mentioned steps (3) is continuous glass fibre or carbon fiber, and diameter is 1-30 μm.
As preferably, above-mentioned steps is also added with additive in (2) in the resin mixture, the content of described additive is the 0-15% of resin volume content, and described additive is one or more in dispersion agent, releasing agent, fire retardant, tinting material, coupling agent, solidifying agent, UV light absorber.
As preferably, in above-mentioned steps (2) resin used be urethane resin, unsaturated polyester, Vinylite, epoxy resin, resol, furane resin, with one or more in the methylbenzene e pioic acid methyl ester resin that is monomer.
Compared with prior art, the present invention has the technique effect of following special excellence:
One or more staple fibres in glass fibre, aramid fiber, carbon fiber, basalt fibre, nylon fiber, trevira or superhigh molecular weight polyethylene fibers are dispersed in resin impregnation liquid by the present invention, the volume content of staple fibre is 5%-10%, and this proportioning effectively can improve the transverse strength of solar components frame; By composite material drawing and extruding technology to prepare solar energy module frame, mold heated temperature is 150 DEG C-210 DEG C, and pulling speed is 1m/min-3m/min, and under this processing parameter, produce sun power frame efficiency high, good moldability; The method is simple compared with the method for original enhancing vertical direction intensity, efficient and convenient and can realize object, and cost also can not obviously increase, and result is easy to control, and also can carry out flexible according to the actual requirements; This frame uses staple fibre and continuous lod simultaneously, staple fibre overlaps between continuous fibre, not only maintain the excellent properties along continuous fibre direction, good mechanical property is ensure that equally in vertical fibers direction, gained solar components frame has that quality is light, environmental protection, insulation, mechanical property are good, corrosion resistance and good, avoids the advantages such as PID effect.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 gained solar components frame sample stress strain curve;
Fig. 2 is the embodiment of the present invention 2 gained solar components frame sample stress strain curve;
Fig. 3 is the embodiment of the present invention 3 gained solar components frame sample stress strain curve;
Fig. 4 is the embodiment of the present invention 4 gained solar components frame sample stress strain curve.
Embodiment
Specific embodiment one:
The solar components frame of the present embodiment is made up of following methods: (1) pre-dispersed short carbon fiber, load weighted carbon fiber is put into the water that temperature is 38-44 DEG C, with 250W power ultrasonic vibration about 10min, add appropriate Natvosol dispersion agent again, stir, continue sonic oscillation, continue about 10min, taking-up is dried stand-by; (2) by volume percent be 5% pre-dispersed good short carbon fiber to add volume percent be in the urethane of 25%, obtain uniform resin compound through mechanical stirring; (3) will flood coupling agent and dry continuous glass fibre flood in the resin mixture, the volume percent of continuous glass fibre is 70%; (4) it is 180 DEG C with die temperature, pultrusion speed is the solar components frame that the processing parameter of 2m/min is prepared by pultrusion injection molding process, gained frame as shown in Figure 1, it is 767MPa along fiber direction intensity, stress strain curve is as accompanying drawing 2, vertical fibers direction intensity is 200MPa, is applicable to ocean and wet environment, avoids solar components PID effect.
Specific embodiment two:
The solar components frame of the present embodiment is made up of following methods: (1) by volume percent be 4% aramid fiber short fibre and volume percent be 4% staple glass fibre to add volume percent be in the urethane of 22%, obtain uniform resin compound through heated and stirred; (2) will flood coupling agent and dry continuous glass fibre flood in the resin mixture, the volume percent of continuous glass fibre is 70%; (3) be 190 DEG C with die temperature, pultrusion speed is that the processing parameter of 2.5m/min obtains solar components shape of peripheral frame by pultrusion molding process.As shown in Figure 2, it is 1071MPa along fiber direction intensity to gained frame stress strain curve, and vertical fibers direction intensity is 230MPa, and this frame intensity is high, and good corrosion resistance can be used for the field needing high strength frame material.
Specific embodiment three:
The solar components frame of the present embodiment is made up of following methods: (1) pre-dispersed short carbon fiber, load weighted carbon fiber is put into the water that temperature is 38-44 DEG C, with 250W power ultrasonic vibration about 10min, add appropriate Natvosol dispersion agent again, stir, continue sonic oscillation, continue about 10min, taking-up is dried stand-by; (2) by volume percent be 8% pre-dispersed good carbon chopped fiber and volume percent be 2% fire retardant hydrated aluminum oxide Al
2o
33H
2it is in the urethane of 30% that O (ATH) adds volume percent, obtains uniform resin compound through mechanical stirring; (3) will flood coupling agent and dry continuous glass fibre flood in the resin mixture, the volume percent of continuous glass fibre is 60%; (4) be 180 DEG C with die temperature, pultrusion speed is that the processing parameter of 2m/min obtains solar components shape of peripheral frame by pultrusion molding process.As shown in Figure 3, it is 804.26MPa along fiber direction intensity to gained frame stress strain curve, and vertical fibers direction intensity is 200MPa, and this solar components frame has certain flame retardant resistance, can use under inflammable and explosive environment.
Specific embodiment four:
The solar components frame of the present embodiment is made up of following methods: (1) adopt pressurized air blow mode by load weighted volume percent be 8% short basalt fiber to add volume percent be in the epoxy resin of 25%, add fire retardant simultaneously, volume percent is 2%, obtains uniform resin compound through mechanical stirring; (2) will flood coupling agent and dry continuous glass fibre flood in the resin mixture, the volume percent of continuous glass fibre is 65%; (3) it is 165 DEG C with die temperature, pultrusion speed is that the processing parameter of 1.2m/min obtains solar components frame by pultrusion molding process, as shown in Figure 4, it is 820.15MPa along fiber direction intensity to gained frame stress strain curve, and vertical fibers direction intensity is 205MPa.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (8)
1. a short fiber reinforced pultrusion composite materials solar components frame, it is characterized in that, this solar components frame is prepared by pultrusion molding process, comprise staple fibre, continuous fibre and resin, the volume percent of each component is: staple fibre 5%-10%, continuous fibre 50%-80%, resin 10%-40%.
2. short fiber reinforced pultrusion composite materials solar components frame according to claim 1, it is characterized in that, described staple fibre is one or more in glass fibre, aramid fiber, carbon fiber, basalt fibre, nylon fiber, trevira and superhigh molecular weight polyethylene fibers, its length≤6mm.
3. short fiber reinforced pultrusion composite materials solar components frame according to claim 1, it is characterized in that, described continuous fiber is continuous glass fibre or carbon fiber, diameter 1-30 μm.
4. short fiber reinforced pultrusion composite materials solar components frame according to claim 1, it is characterized in that, described resin is urethane resin, unsaturated polyester, Vinylite, epoxy resin, resol, furane resin, with one or more in the methylbenzene e pioic acid methyl ester resin that is monomer.
5. a preparation method for short fiber reinforced pultrusion composite materials solar components frame, is characterized in that, comprise following steps:
(1) suitable dispersion agent and dispersing mode is selected according to different types of staple fibre, staple fibre is pre-dispersed, to ensure that it can be uniformly distributed in the resin mixture;
(2) by percent by volume be 10%-40% liquid resin, 5%-10% staple fibre mixing obtain resin compound;
(3) by percent by volume be 50%-80% dipping coupling agent and dry continuous fibre flood in the resin mixture;
(4) utilizing forming machine using drawing and extrusion, is 150 DEG C-210 DEG C in die temperature, and pulling speed is under 1m/min-3m/min condition, carries out forming operation and cutting operation to obtain required sun power border component to the continuous fibre flooding resin compound.
6. the preparation method of short fiber reinforced pultrusion composite materials solar components frame according to claim 5, it is characterized in that, staple fibre used in described step (1) is one or more in glass fibre, aramid fiber, carbon fiber, basalt fibre, nylon fiber, trevira and superhigh molecular weight polyethylene fibers, its length≤6mm.
7. the preparation method of short fiber reinforced pultrusion composite materials solar components frame according to claim 5, is characterized in that, described step 3) in continuous fibre used be continuous glass fibre or carbon fiber, diameter is 1-30 μm.
8. the preparation method of short fiber reinforced pultrusion composite materials solar components frame according to claim 5, it is characterized in that, in described step (2) resin used be urethane resin, unsaturated polyester, Vinylite, epoxy resin, resol, furane resin, with one or more in the methylbenzene e pioic acid methyl ester resin that is monomer.
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| CN105553410A (en) * | 2015-12-28 | 2016-05-04 | 哈尔滨工程大学 | Connecting structure of composite material solar panel frame |
| CN105626966A (en) * | 2016-03-30 | 2016-06-01 | 南京海拓复合材料有限责任公司 | Combined type composite material bearing support |
| CN105713339A (en) * | 2016-04-01 | 2016-06-29 | 安徽冠廷科技有限公司 | Fiber composite |
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| CN114561099B (en) * | 2022-04-19 | 2024-03-08 | 宁海宏德新材料科技有限公司 | Solar cell frame material and preparation method thereof |
| CN114889169A (en) * | 2022-05-06 | 2022-08-12 | 余小兵 | Light solar frame and production process thereof |
| CN116462882A (en) * | 2023-05-17 | 2023-07-21 | 东风汽车集团股份有限公司 | High-performance recycled polyurethane foam material, preparation method and application thereof |
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Effective date of registration: 20190930 Address after: No. 410-2, 4th floor, West Zone of ship electronics world, No. 258, Nantong street, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin Raw Material New Material Science and Technology Development Co., Ltd. Address before: 150000 No. 145, Nantong Avenue, Nangang District, Heilongjiang, Harbin Patentee before: Harbin Engineering Univ. |