CN102235057A - Fiber reinforced plastic (FRP) rib - Google Patents
Fiber reinforced plastic (FRP) rib Download PDFInfo
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- CN102235057A CN102235057A CN2010101696445A CN201010169644A CN102235057A CN 102235057 A CN102235057 A CN 102235057A CN 2010101696445 A CN2010101696445 A CN 2010101696445A CN 201010169644 A CN201010169644 A CN 201010169644A CN 102235057 A CN102235057 A CN 102235057A
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- frp muscle
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Abstract
The invention discloses a fiber reinforced plastic (FRP) rib, which solves the technical problems of weak corrosion resistance, low toughness, poor mechanical property and poor durability of the FRP rib in the prior art. For solving the technical problems, the invention adopts the technical scheme that: the FRP rib is prepared by uniformly arranging thermoplastic resin fibers and inorganic reinforced fibers across at intervals. The FRP rib prepared by adopting the technical scheme of the invention is an FRP rib with strong corrosion resistance, strong toughness and better mechanical property, and can be quickly and widely applied in various projects.
Description
Technical field
The present invention relates to a kind of constructional materials that is used for civil engineering, relate in particular to the FRP muscle that a kind of engineering is used.
Background technology
The rod member architecture that the geotechnical body that the FRP muscle is used as a kind of civil engineering is reinforced, have large market and using value, be related to the country and people's security of the lives and property, so product must have high strength, corrosion-resistant, easy-formation and advantage cheaply, could effectively be applied in the civil engineering.
Existing FRP muscle moulding process comprises operations such as sending yarn, impregnation, monofilament winding, precuring, curing molding, drawing-off, cut-out, the general resin that is adopted is a thermosetting resin, shortcoming such as the shortcoming of this moulding process is to exist in the forming process that body of rod spillage, body of rod surface are inhomogeneous, the FRP muscle can't post forming, corrosion resistance is low, FRP muscle toughness is low has influence on mechanical property, endurance quality and the usage safety performance of FRP muscle.
Chinese invention patent Shen Qing Publication manual discloses name and has been called a kind of full-thread fiber-reinforced thermoplastic plastics anchor bar and processing technology thereof, was that July 15, publication number in 2009 are the application for a patent for invention of CN101482024A in open day, the forming method of the FRP muscle that this patent application is introduced adopts heat of immersion plastic resin technology, thermoplastic resin generally needs higher melt temperature (＞180 ℃) just can reach liquid condition, requirement height and continuous production to equipment need long molten resin need lot of energy, have improved cost of production; And resin is in high temperature fused state for a long time and can has serious degraded, causes resin property to reduce significantly, finally has influence on the performance of FRP muscle.
To carry out the functional performance that certain improvement improves the FRP muscle to the production technology of existing FRP muscle for solving problems of the prior art, thereby effectively guarantee the quality and the people life property safety of China's civil engineering.
Summary of the invention
The present invention for solve in the prior art a little less than the FRP muscle corrosion resistance, toughness is low, the technical problem of poor mechanical property, endurance quality difference, a kind of corrosion resistance is strong, toughness strong, the better FRP muscle of mechanical property and provide.
In order to solve the problems of the technologies described above, the present invention mainly takes following technical scheme.
A kind of FRP muscle, by thermoplastic resin fibre and inorganic reinforcing fiber intersect, at interval even boundling forms;
This FRP muscle surface has the helicitic texture that is entwined by monfil.
Further, monfil is the fiber of polyester fiber, polypropylene fibre, Fypro, polyformaldehyde fibre, liquid crystal high polymers fiber or functional master batch modification.
Further, described thermoplastic resin fibre is the fiber of polyester fiber, polypropylene fibre, Fypro, polyformaldehyde fibre, liquid crystal high polymers fiber or functional master batch modification; Described inorganic reinforcing fiber is glass fiber, basalt fibre or carbon fiber.
As preferred version of the present invention, the FRP muscle is triangle, circle, W shape or M shape.
Adopt technical scheme of the present invention, have following technique effect:
The resin raw material that the present invention uses is thermoplastic resin, and thermoplastic resin molded technology is simple, easy to control, function admirable, and can secondary operations become different shapes, satisfies the requirement of different engineerings to FRP muscle shape; The resin raw material that uses among the present invention is fibrous, and with inorfil altogether boundling form the FRP muscle body of rod, can change the kind of thermoplastic fibre, the performance requirement that content reaches different engineerings so flexibly, as requirements such as anti-flammability, durability, heat-resisting quantities; The present invention adopts the FRP muscle of thermoplastic resin fibre's feedstock production, can effectively improve the toughness deficiency of FRP muscle, the shortcoming of fracture resistance deficiency; In the process of preparation, adopt continuous high temperature melting and solidification, molding production process, evenly bond after thermoplastic resin fibre's fusion with inorganic high-intensity fiber, resin high temperature degradation rate is low, property retention rate height, and FRP muscle properties of product are good, satisfies various engineerings to FRP muscle performance requirement; The preparation technology of the thermoplastic resin FRP muscle of the present invention's preparation is simple, R﹠D costs are low, cost of production is low, can be applied in widely in the actual engineering rapidly.
Description of drawings
Fig. 1 is the sectional view by FRP muscle provided by the invention.
The specific embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
A kind of preparation method of FRP muscle is a raw material with thermoplastic resin fibre 2 and inorganic reinforcing fiber 1, may further comprise the steps:
A, drying: thermoplastic resin fibre 2 is carried out drying handle, its water content is reduced to below the 40ppm, dry condition is preferably carried out drying processing to thermoplastic resin fibre 2 under temperature is 115～160 ℃ vacuum condition, can avoid at high temperature like this, produce bubble during fibers melt, better guarantee every performance of FRP muscle.
B, boundling: with dried thermoplastic resin fibre 2 and inorganic reinforcing fiber 1 intersect, at interval even boundling, thermoplastic resin fibre 2 and inorganic reinforcing fiber 1 are binded, so that strengthen performances such as the durability of FRP muscle and intensity.
C, winding: the fiber bundle behind the boundling is twined through monfil, form helicitic texture, can guarantee the shape of FRP muscle on the one hand, can strengthen the adhesion of FRP muscle and environment for use on the other hand.
D, drawing-off: the FRP muscle bar that makes among the step C is drawn in preformed drying tunnel in the step e through drafting machine.
E, preformed: preformed temperature is 160～285 ℃, the preformed time of the fiber bundle with helicitic texture that is made by step C is 5～60s, the preformed time is selected according to FRP muscle different-diameter, makes the thermoplastic resin fibre 2 of FRP muscle inside absorb heat fully, uniformly.
F, moulding: the temperature of moulding is 180～320 ℃, the molding time of the preformed FRP muscle that is made by step D is 10～100s, molding time can be selected according to FRP muscle different-diameter, makes thermoplastic resin fibre's 2 abundant fusions of FRP muscle inside, the coated inorganic fortifying fibre 1 around the even diffusion.
G, cooling curing: with the FRP muscle at room temperature more than the cooling curing 120s;
Finished product is made in H, cut-out, the thermoplasticity FRP muscle that makes among the step G is cut into virtually any size satisfy different engine requests.
Described thermoplastic resin fibre 2 is the fiber of polyester fiber, polypropylene fibre, Fypro, polyformaldehyde fibre, liquid crystal high polymers fiber or functional master batch modification; Described inorganic reinforcing fiber 1 is glass fiber, basalt fibre or carbon fiber, multiple choices can satisfy different engine requests, select different thermoplastic resin fibres, such as selecting different fibers according to performance demands such as fire resistance, corrosion resistance, antistatic behaviour, hydrophilicity or heat-resisting quantity modifications, wherein the usage ratio of thermoplastic resin fibre 2 and inorganic reinforcing fiber 1 can require according to different engineering properties to allocate.
As the preferred technical solution of the present invention, also have step G1 between step F and G, step G1 is the geometry moulding: after the moulding of FRP muscle process step F, before thermoplastic resin solidifies fully, the FRP muscle is made required form, satisfy different engine requests.
In described step G1, the FRP muscle in the 120s before thermoplastic resin fibre 2 is solidified fully, can guarantee FRP muscle high-temperature molding through behind the high-temperature molding, can guarantee again before solidifying fully, the FRP muscle is being made needed shape, such as with FRP muscle triangularity, circle, W shape, M shape.
As shown in Figure 1, sectional view by FRP muscle provided by the invention, its thermoplastic resin fibre 2 and inorganic reinforcing fiber 1 intersect, evenly arranging at interval, remedied the performance deficiency of traditional hot solidity FRP muscle and existing thermoplasticity FRP muscle moulding process, improved civil engineering with the self performance and the diversity of FRP muscle, expanded the scope of application, reduced cost of production, make the present invention adopt thermoplastic resin fibre 2 and inorganic reinforcing fiber 1 can produce function admirable for raw material civil engineering with thermoplastic resin FRP muscle, the production cost is low, efficient is high.The thermoplasticity FRP muscle diameter that the technology of the present invention is produced is at 5～50mm, the cross section is a typical circular, the screw thread that has certain depth, FRP muscle shape can be made any different in nature shape of different engine requests, and mechanical property, superior in durability, moulding process are simple, cost of production significantly reduces.
The preparation process of the thermoplastic resin FRP muscle that provides among the present invention is described with embodiment below.
Embodiment 1:
With dried polypropylene fibre and glass fiber intersect, boundling at interval uniformly, guarantee that polypropylene fibre is evenly distributed in the FRP muscle body of rod, the diameter of preparation FRP muscle bar is 16mm; Again the fiber bundle behind the boundling is twined with the high strength monfil, form helicitic texture on FRP muscle bar surface; By drafting machine FRP muscle bar is drawn in the preformed drying tunnel, FRP muscle bar passes through preformed preheating zone, crush zone, preformed district successively, and the temperature in Qi Ge district is respectively 165 ℃, 170 ℃, 175 ℃, and the time of FRP muscle in preformed flood road is 15s; After fiber enters the moulding drying tunnel, successively through preheating zone, crush zone, melting zone, shaping area, the heat preservation zone of overmolding drying tunnel, its each regional temperature is respectively 180 ℃, 190 ℃, 200 ℃, 200 ℃, 190 ℃, and the FRP muscle is 25s in the time of forming area, makes the FRP muscle; After the FRP muscle is pulled out behind the drying tunnel directly cooling curing 120s through drafting machine, can cut into the FRP muscle of random length.Present embodiment does not carry out the moulding of special-shaped shape to the FRP muscle.
Tensile strength＞the 650MPa of the FRP muscle finished product that makes at last, shear strength＞125MPa, limiting strain＞7.5%, modulus＞40GPa, body of rod diameter 16.2mm.
Embodiment 2:
With dried polyester fiber and glass fiber intersect, boundling at interval uniformly, guarantee that polyester fiber is evenly distributed in the FRP muscle body of rod, the diameter of preparation FRP muscle is 20mm; Fiber bundle behind the boundling is twined with the high strength monfil, form helicitic texture on FRP muscle surface; By drafting machine FRP muscle bar is drawn in the preformed drying tunnel, FRP muscle bar passes through preformed preheating zone, crush zone, preformed district successively, and the temperature in Qi Ge district is respectively 240 ℃, 250 ℃, 260 ℃, and the time of FRP muscle in preformed flood road is 20s; After fiber enters the moulding drying tunnel, successively through preheating zone, crush zone, melting zone, shaping area, the heat preservation zone of overmolding drying tunnel, its each regional temperature is respectively 270 ℃, 280 ℃, 290 ℃, 290 ℃, 280 ℃, and the FRP muscle is 35s in the time of forming area, makes the FRP muscle; After the FRP muscle is pulled out behind the drying tunnel directly cooling curing 120s through drafting machine, can cut into the FRP muscle of random length.Present embodiment does not carry out the moulding of special-shaped shape to the FRP muscle.
Tensile strength＞the 750MPa of Zhi FRP muscle finished product at last, shear strength＞150MPa, limiting strain＞7%, modulus＞50GPa, body of rod diameter 20.1mm.
Embodiment 3:
With dried Fypro and glass fiber intersect, boundling at interval uniformly, guarantee that Fypro is evenly distributed in the FRP muscle body of rod, the diameter of preparation FRP muscle is 25mm; Fiber bundle behind the boundling is twined with the high strength monfil, form helicitic texture on FRP muscle surface; By drafting machine FRP muscle bar is drawn in the preformed drying tunnel, FRP muscle bar passes through preformed preheating zone, crush zone, preformed district successively, and the temperature in Qi Ge district is respectively 185 ℃, 195 ℃, 205 ℃, and the time of FRP muscle in preformed flood road is 25s; After fiber enters the moulding drying tunnel, successively through preheating zone, crush zone, melting zone, shaping area, the heat preservation zone of overmolding drying tunnel, its each regional temperature is respectively 215 ℃, 220 ℃, 230 ℃, 230 ℃, 220 ℃, and the FRP muscle is 40s in the time of forming area, makes the FRP muscle; Step by the geometry moulding is prepared into circle with the FRP muscle that makes then, after being FRP muscle high-temperature molding, before thermoplastic resin solidifies fully, by drafting machine the FRP muscle is pulled out behind the drying tunnel through special-shaped moulding grinding tool, being prepared into diameter phi is the FRP muscle of the circle of 1000mm, with engineering demands.At room temperature cut off again after the cooling.
Tensile strength＞the 700MPa of the FRP muscle finished product that makes at last, shear strength＞130MPa, limiting strain＞7%, modulus＞45GPa, body of rod diameter 25.3mm.
Embodiment 4:
Present embodiment thermoplastic resin fibre 2 is a liquid crystalline polyester fiber, and inorganic reinforcing fiber 1 is a carbon fiber.At first, with liquid crystalline polyester fiber vacuum drying 12 hours under 160 ℃ condition, its water content is reduced to below the 40ppm, wherein the content of liquid crystalline polyester fiber is 15% of raw material gross weight.And be evenly distributed in the FRP muscle body of rod, the diameter of preparation FRP muscle is 22mm.
With dried liquid crystalline polyester fiber and carbon fiber intersect, boundling at interval uniformly, guarantee that liquid crystalline polyester fiber is evenly distributed in the FRP muscle body of rod, the diameter of preparation FRP muscle is 22mm; Fiber bundle behind the boundling is twined with the high strength monfil, form helicitic texture on FRP muscle surface; By drafting machine FRP muscle bar is drawn in the preformed drying tunnel, FRP muscle bar passes through preformed preheating zone, crush zone, preformed district successively, and the temperature in Qi Ge district is respectively 265 ℃, 275 ℃, 285 ℃, and the time of FRP muscle in preformed flood road is 20s; After fiber enters the moulding drying tunnel, successively through preheating zone, crush zone, melting zone, shaping area, the heat preservation zone of overmolding drying tunnel, its each regional temperature is respectively 295 ℃, 310 ℃, 320 ℃, 320 ℃, 310 ℃, and the FRP muscle is 35s in the time of forming area, makes the FRP muscle; After the FRP muscle is pulled out behind the drying tunnel directly cooling curing 120s through drafting machine, can cut into the FRP muscle of random length.Present embodiment does not carry out the moulding of special-shaped shape to the FRP muscle.
Tensile strength＞the 1200MPa of the FRP muscle finished product that makes at last, shear strength＞200MPa, limiting strain＞2%, modulus＞110GPa, body of rod diameter 22.3mm.
Claims (5)
1. FRP muscle is characterized in that: by thermoplastic resin fibre and inorganic reinforcing fiber intersect, evenly arranging and make at interval.
2. FRP muscle according to claim 1 is characterized in that, described FRP muscle surface has the helicitic texture that is entwined by monfil.
3. FRP muscle according to claim 2 is characterized in that, described monfil is the fiber of polyester fiber, polypropylene fibre, Fypro, polyformaldehyde fibre, liquid crystal high polymers fiber or functional master batch modification.
4. FRP muscle according to claim 1 is characterized in that, described thermoplastic resin fibre is the fiber of polyester fiber, polypropylene fibre, Fypro, polyformaldehyde fibre, liquid crystal high polymers fiber or functional master batch modification; Described inorganic reinforcing fiber is glass fiber, basalt fibre or carbon fiber.
5. FRP muscle according to claim 1 is characterized in that, the FRP muscle is triangle, circle, W shape or M shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010169644.5A CN102235057B (en) | 2010-05-07 | 2010-05-07 | A kind of FRP muscle |
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| CN201010169644.5A CN102235057B (en) | 2010-05-07 | 2010-05-07 | A kind of FRP muscle |
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| CN102235057B CN102235057B (en) | 2015-08-19 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745944A (en) * | 2012-06-05 | 2012-10-24 | 河海大学 | Steel fiber reinforced glass fiber resin composite bar material and preparation method |
| CN104005518A (en) * | 2014-05-29 | 2014-08-27 | 江苏博泓新材料科技有限公司 | Energy-saving composite steel bar |
| CN104005518B (en) * | 2014-05-29 | 2016-11-30 | 江苏博泓新材料科技有限公司 | Energy-saving reinforced composite |
| CN106868676A (en) * | 2017-03-01 | 2017-06-20 | 唐山开滦化工科技有限公司 | A kind of three-dimensional shuffling polyimide fiber enhancing polyformaldehyde composite material and preparation method thereof |
| CN107009647A (en) * | 2017-03-14 | 2017-08-04 | 海宁安捷复合材料有限责任公司 | A kind of basalt composite reinforcing and its preparation technology |
| CN107056247A (en) * | 2016-12-21 | 2017-08-18 | 周易 | A kind of high tenacity ceramic material and preparation method thereof |
| CN108529961A (en) * | 2018-03-30 | 2018-09-14 | 广西交通规划勘察设计研究院有限公司 | A kind of green high performance concrete material and preparation method thereof |
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| JPS5893007A (en) * | 1981-11-30 | 1983-06-02 | Furukawa Electric Co Ltd:The | Overhead wire |
| US4876143A (en) * | 1985-07-05 | 1989-10-24 | Shimizu Construction Co., Ltd. | Rod material |
| US20040068972A1 (en) * | 2001-08-10 | 2004-04-15 | Japan Basic Material Co., Ltd. | Conjugated yarn and fiber reinforced plastic |
| CN1916327A (en) * | 2006-08-11 | 2007-02-21 | 中材科技股份有限公司 | Fiber wall with strong rib material of plastic |
| CN101560816A (en) * | 2009-05-15 | 2009-10-21 | 同济大学 | FRP rib fibre cloth winding coaxial connection method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5893007A (en) * | 1981-11-30 | 1983-06-02 | Furukawa Electric Co Ltd:The | Overhead wire |
| US4876143A (en) * | 1985-07-05 | 1989-10-24 | Shimizu Construction Co., Ltd. | Rod material |
| US20040068972A1 (en) * | 2001-08-10 | 2004-04-15 | Japan Basic Material Co., Ltd. | Conjugated yarn and fiber reinforced plastic |
| CN1916327A (en) * | 2006-08-11 | 2007-02-21 | 中材科技股份有限公司 | Fiber wall with strong rib material of plastic |
| CN101560816A (en) * | 2009-05-15 | 2009-10-21 | 同济大学 | FRP rib fibre cloth winding coaxial connection method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745944A (en) * | 2012-06-05 | 2012-10-24 | 河海大学 | Steel fiber reinforced glass fiber resin composite bar material and preparation method |
| CN104005518A (en) * | 2014-05-29 | 2014-08-27 | 江苏博泓新材料科技有限公司 | Energy-saving composite steel bar |
| CN104005518B (en) * | 2014-05-29 | 2016-11-30 | 江苏博泓新材料科技有限公司 | Energy-saving reinforced composite |
| CN107056247A (en) * | 2016-12-21 | 2017-08-18 | 周易 | A kind of high tenacity ceramic material and preparation method thereof |
| CN106868676A (en) * | 2017-03-01 | 2017-06-20 | 唐山开滦化工科技有限公司 | A kind of three-dimensional shuffling polyimide fiber enhancing polyformaldehyde composite material and preparation method thereof |
| CN106868676B (en) * | 2017-03-01 | 2019-08-27 | 唐山开滦化工科技有限公司 | A kind of three-dimensional shuffling polyimide fiber enhancing polyformaldehyde composite material and preparation method thereof |
| CN107009647A (en) * | 2017-03-14 | 2017-08-04 | 海宁安捷复合材料有限责任公司 | A kind of basalt composite reinforcing and its preparation technology |
| CN108529961A (en) * | 2018-03-30 | 2018-09-14 | 广西交通规划勘察设计研究院有限公司 | A kind of green high performance concrete material and preparation method thereof |
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| CN102235057B (en) | 2015-08-19 |
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Effective date of registration: 20160226 Address after: 201209 No. 158, Chuansha Road, Shanghai, Pudong New Area Patentee after: Shanghai KNP Material Technology Co., Ltd. Patentee after: Shenzhen Oceanpower New Material Technology Co., Ltd. Address before: 201209 No. 158, Chuansha Road, Shanghai, Pudong New Area Patentee before: Shanghai KNP Material Technology Co., Ltd. Patentee before: Haichuan Industry Co., Ltd., Shenzhen |
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Effective date of registration: 20180426 Address after: No. 6, Guangming garden, border town, Jurong, Jiangsu Patentee after: Jiangsu Haichuan new Mstar Technology Ltd Address before: 201209 Chuansha Road, Pudong New Area, Pudong New Area, Shanghai Co-patentee before: Shenzhen Oceanpower New Material Technology Co., Ltd. Patentee before: Shanghai KNP Material Technology Co., Ltd. |
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