CN103363204A - Continuous-fiber-enhanced thermoplastic resin wound pipe and method for forming same - Google Patents
Continuous-fiber-enhanced thermoplastic resin wound pipe and method for forming same Download PDFInfo
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- CN103363204A CN103363204A CN201210088782XA CN201210088782A CN103363204A CN 103363204 A CN103363204 A CN 103363204A CN 201210088782X A CN201210088782X A CN 201210088782XA CN 201210088782 A CN201210088782 A CN 201210088782A CN 103363204 A CN103363204 A CN 103363204A
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Abstract
The invention relates to a continuous-fiber-enhanced thermoplastic resin wound pipe and a method for forming the same. The pipe is characterized in that prepreg tape sheets are wound on the surface of a core mold in a crossed manner to form a plurality of layers, the layers are rolled, and the hollow pipe is acquired after the core mold is removed. The method includes applying certain tension on prepreg tapes; heating the prepreg tape sheets to melt resin in the prepreg tape sheets; winding the prepreg tape sheets on a mandrel to for the multiple layers; applying pressure on the surface of a pipe via a pressure roll; reducing gaps among the prepreg tapes; heating the surface of the wound pipe at a high temperature; applying pressure to the surface of the pipe via the pressure roll again; improving the flatness of the surface of the wound product and reducing gaps in the wound product; cooling the wound product and removing the mold. The continuous-fiber-enhanced thermoplastic resin wound pipe and the method have the advantages that the pipe is high in impact resistance and corrosion resistant and short in forming cycle, and is light, environmental friendly and recyclable, most wound products in existing markets are made of thermosetting materials, namely glass fiber reinforced plastic wound products, thermoplastic wound pipes are unavailable for application at present, accordingly the pipe is quite wide in future application prospect, and the like.
Description
Technical field
The present invention relates to a kind of tubing and forming method thereof, especially relate to a kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method.
Background technique
The winding product of existing continuous fibre enhancement resin mostly is glass fibre reinforced plastics, and the resin that glass fibre reinforced plastics is used all is thermosetting resin (such as epoxy resin, unsaturated resin etc.).The shortcoming of glass fibre reinforced plastic material maximum be thermosetting resin use so that its be difficult to reclaim, not environmental protection, and fragility is larger, impact resistance is poor.Therefore replacing thermosets with thermoplastic material is that society is to a kind of trend of environmental protection requirement.
Wrapping formed is a kind of forming materials technique in the composite material, is mainly used in the preparation of tubing etc., and product has the very excellent performances such as intensity, therefore receives much concern.Continuous fiber strengthens thermoset ting resin composite (being commonly called as glass fibre reinforced plastics) easily to be realized twining, it also is the main application fields of present winding process, and continuous fiber reinforced thermoplastic resin composite material is Wrapping formed because the preparation technology of continuous fiber reinforced thermoplastic resin composite material difficulty and this material have certain hardness to be difficult for all technical reasons such as winding, it not yet is applied so far, this technology also is subject to broad research, but does not all have substantial progress.But be the industrialization batch process of open and Liaoning Jieshijie New Materials Co., Ltd's continuous fiber reinforced thermoplastic prepreg tape material (hereinafter to be referred as prepreg tape) of the thermoplastic composite material that strengthens of the patent of invention continuous fiber of CN1521209A along with doctor Xie Tingxiu of Jieshijie Novel Materials Co., Ltd, Shanghai publication number, for the winding that realizes the continuous fiber reinforced thermoplastic material provides opportunity, simultaneously also so that industrialized production can equally with glass reinforced plastic winding be carried out in the winding of continuous fiber reinforced thermoplastic material.
The continuous fiber reinforced thermoplastic resin wrapped tube has than Glass Steel Tube that molding cycle is short, quality is lighter, corrosion resistance is better, impact resistance is better and is recyclable, is conducive to the advantages such as environmental protection, can be applicable to the high pressure pipe line fields such as petrochemical industry.
Summary of the invention
Purpose of the present invention is exactly that provide for the deficiency that overcomes existing glass fibre reinforced plastics technology a kind of has better impact resistance, corrosion resistance, lightweight, molding cycle is short, the callable continuous fiber reinforced thermoplastic resin wrapped tube of environmental protection forming method.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of continuous fiber reinforced thermoplastic resin wrapped tube, this tubing is for removing the hollow tube that core obtains by the prepreg tape sheet material after the surface crosswise writhing number layer of core and roll extrusion.
Described prepreg tape sheet material is the fiber-reinforced resin sheet material, and resin wherein comprises polypropylene, polyethylene, PVC＝polyvinyl chloride, polymethylmethacrylate or polyamide, and fiber comprises glass fibre, carbon fiber, aramid fibre or polyster fibre.
The winding angle of described prepreg tape sheet material is 0 °～90 °, but does not comprise 0 ° and 90 °, preferred 40 °～85 °.
The winding number of plies of described prepreg tape sheet material is 2～60 layers.
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) heating prepreg tape sheet material, the resin in the fusing prepreg tape sheet material is so that whole prepreg tape sheet material is softening;
(2) prepreg tape after being heated is applied tension force, and according to certain winding angle the winding mandrel on 2～60 layers of cross windings;
(3) in the process of twining, apply certain pressure by pressure roller on the pipe fitting surface, improve the adhesion strength of tubing.
(4) after winding is finished, carry out high-temperature heating on winding pipe fitting surface with heater, exert pressure on the pipe fitting surface by pressure roller, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed mandrel and is got final product.
Described resin optimization polypropylene or polyethylene.
Described fiber preferred glass fibers.
Adopt infrared lamp, infrared ceramic piece, heat gun, resistance wire or laser that the prepreg tape sheet material is heated in the step (1), heating-up temperature is 100～500 ℃, fusing point and speed of wrap according to the resin of selecting are definite, and final effect is not degraded for prepreg tape fully melts.
Prepreg tape tensioning under the effect of tension force after being heated described in the step (2).
Pressure described in the step (3) is 0.05～0.2MPa.
Being shaped as of winding pipe fitting described in the step (4) is circular or square.
The temperature of the high-temperature heating described in the step (4) is for being higher than 50～200 ℃ of melting point resins, and described pressure is 0.1～0.5MPa.
Preferred 250～380 ℃ of the temperature that heater described in the step (4) produces.
Compared with prior art, the present invention has the following advantages:
(1) the continuous fiber reinforced thermoplastic resin wrapped tube than glass fiber reinforced plastics product have better impact resistance, corrosion resistance, the advantage such as lightweight, molding cycle is short, environmental protection is recyclable;
(2) in the market winding product major part all is heat cured material, i.e. glass reinforced plastic winding product, and the thermoplasticity wrapped tube yet there are no application, and following application prospect is very wide.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
Getting the continuous glass fiber reinforced polypropylene prepreg tape is raw material, at first prepreg tape is processed into width and is 30 millimeters band, it is coiled on the unreeling device, then by Guide roller and tension controlling device prepreg tape is drawn to the Stetch Wrapping Machine mandrel, Wiring apparatus adopts designed, designed three-shaft linkage numerical control winding machine.Mode of heating is taked infrared lamp box heating and heat gun compound use, wherein the heating of infrared lamp box is one and preheats process, heating-up temperature is so that the prepreg tape surface temperature is advisable at 160～200 ℃, in the present embodiment according to fusing point and the speed of wrap of acrylic resin, the heating-up temperature that adopts is 300 ℃, heat by heat gun afterwards, heating location contacts the seam place at prepreg tape with winding mandrel, heating-up temperature is for making the prepreg tape surface temperature at 180 ℃, and pressure roller applies 0.1MPa pressure in winding process.Speed of wrap is 5 m/mins.10 layers of prepreg tape of cross winding, entwining tube is shaped as circle.After winding is finished, in 300 ℃ of heating of pipe face, apply 0.5MPa pressure, tubing can be broken away from from core by stripper at last, obtain required tubing.
Embodiment 2
Getting continuous glass fibre enhanced polyethylene prepreg tape is raw material, at first prepreg tape is processed into width and is 30 millimeters band, it is coiled on the unreeling device, then by Guide roller and tension controlling device prepreg tape is drawn to the Stetch Wrapping Machine mandrel, Wiring apparatus adopts designed, designed three-shaft linkage numerical control winding machine.Mode of heating is taked infrared lamp box heating and heat gun compound use, wherein the heating of infrared lamp box is one and preheats process, heating-up temperature is so that the prepreg tape surface temperature is advisable at 140～170 ℃, in the present embodiment according to fusing point and the speed of wrap of polyethylene resin, the heating-up temperature that adopts is 280 ℃, by the heat gun heating, heating location contacts the seam place at prepreg tape with winding mandrel afterwards, and heating-up temperature is for making the prepreg tape surface temperature at 150 ℃.Speed of wrap is 5 m/mins.10 layers of prepreg tape of cross winding, entwining tube is shaped as circle.After winding is finished, in 280 ℃ of heating of pipe face, apply 0.2MPa pressure, tubing can be broken away from from core by stripper at last, obtain required tubing.
Embodiment 3
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) adopt infrared ceramic piece to heat the prepreg tape sheet material of fiber-reinforced resin, fiber in the sheet material is carbon fiber, plexiglass in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force so that prepreg tape tensioning under the effect of tension force, and according to 70 ° winding angle circle twine mandrel and twine ten layers, the number of plies of winding is decided according to the requirement that pipe is pressed;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.1MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is for being higher than 50 ℃ of plexiglass fusing points, apply 0.2MPa pressure on the pipe fitting surface, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Embodiment 4
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) adopt heat gun to heat the prepreg tape sheet material of fiber-reinforced resin, fiber in the sheet material is glass fibre, polyamide resin in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force, so that prepreg tape tensioning under the effect of tension force, and according to 60 ° winding angle, twine on the mandrel 20 layers of cross windings according to the requirement that pipe is pressed in circle, the number of plies of winding is decided according to the requirement that pipe is pressed;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.05MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is 350 ℃ in the present embodiment, apply 0.2MPa pressure by pressure roller on the pipe fitting surface again, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Embodiment 5
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) the prepreg tape sheet material of employing Resistant heating case and heat gun composite heating fiber-reinforced resin, fiber in the sheet material is aramid fibre, acrylic resin in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force, so that prepreg tape tensioning under the effect of tension force, and according to 70 ° winding angle, twine mandrel according to the requirement that pipe is pressed in circle and twine eight layers, the number of plies of winding is decided according to the requirement that pipe is pressed;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.3MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is 300 ℃ in the present embodiment, apply 0.5MPa pressure by pressure roller on the pipe fitting surface again, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Embodiment 6
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) the prepreg tape sheet material of employing laser heating fiber-reinforced resin, fiber in the sheet material is polyster fibre, polyethylene resin in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force so that prepreg tape tensioning under the effect of tension force, and according to 80 ° winding angle, according to the requirement that pipe is pressed square winding mandrel on ten layers of cross windings;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.05MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is for being higher than 50 ℃ of polyethylene resin fusing points, apply 0.1MPa pressure by pressure roller on the pipe fitting surface again, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Embodiment 7
A kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method may further comprise the steps:
(1) adopt heat gun to heat the prepreg tape sheet material of fiber-reinforced resin, fiber in the sheet material is aramid fibre, Corvic in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force, so that prepreg tape tensioning under the effect of tension force, and according to 45 ° winding angle, according to the requirement that pipe is pressed eight layers of cross windings on square winding mandrel;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.1MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is for being higher than 50 ℃ of Corvic fusing points, apply 0.3MPa pressure by pressure roller on the pipe fitting surface again, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Embodiment 8
A kind of continuous fiber reinforced thermoplastic wrapped tube forming method may further comprise the steps:
(1) adopt infrared lamp to heat the prepreg tape sheet material of fiber-reinforced resin, fiber in the sheet material is glass fibre, plexiglass in the fusing prepreg tape sheet material, so that whole prepreg tape sheet material is softening, the prepreg tape material that the prepreg tape sheet material of use can use Liaoning Jieshijie New Materials Co., Ltd to produce;
(2) prepreg tape after being heated is applied tension force so that prepreg tape tensioning under the effect of tension force, and according to 85 ° winding angle, according to the requirement that pipe is pressed square winding mandrel on 60 layers of cross windings;
(3) in the process of twining, apply the adhesion strength of the pressure raising tubing of 0.1MPa on the pipe fitting surface by pressure roller;
(4) after winding is finished, twining the heating of pipe fitting surface high-temp, the temperature of high-temperature heating is for being higher than 80 ℃ of polymethylmethacrylate fusing points, apply 0.3MPa pressure by pressure roller on the pipe fitting surface again, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed core, namely obtains the continuous fiber reinforced thermoplastic resin wrapped tube.
Enumerated the performance comparison of the glass fiber reinforced plastics product of the impact strength of polypropylene, polyethylene and 6 three kinds of thermoplastic resin matrix's winding products of nylon and density and E-44 epoxy matrix in the table 1, wherein specimen material glass mass percent is 60%.Wherein the thermoplastic sample winding process is: by the prepreg tape material is passed through the infrared lamp heating and melting, the mode in prepreg tape and the place's heating of core folder point is wrapped on the circular core again, applies certain pressure by pressure roller in the process of winding.In order to contrast conveniently, E-44 epoxy glass steel pipe directly is wrapped on the core by the dipping epoxy glue solution, then solidifies, and does not carry out the processing such as burning into sand.Measure composite material impact strength and density with reference to ASTM D6110 and ASTM D792 respectively.
Table 1
By in the upper table as seen, twining the tubing obtain through this method has had very large lifting aspect impact strength, utilize the acrylic resin prepreg tape to twine that the impact strength of the tubing that obtains is minimum can to reach 56KJ/m
2, its density also is down to 1.41g/cm in addition
3, this shows, the continuous fiber reinforced thermoplastic resin wrapped tube has better impact resistance than glass fiber reinforced plastics product, and lightweight in addition, combination property is more superior.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiments, and needn't pass through performing creative labour being applied among other embodiments in the General Principle of this explanation.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (9)
1. a continuous fiber reinforced thermoplastic resin wrapped tube is characterized in that, this tubing is for removing the hollow tube that core obtains by the prepreg tape sheet material after the surface crosswise writhing number layer of core and roll extrusion.
2. a kind of continuous fiber reinforced thermoplastic resin wrapped tube according to claim 1, it is characterized in that, described prepreg tape sheet material is the fiber-reinforced resin sheet material, resin wherein comprises polypropylene, polyethylene, PVC＝polyvinyl chloride, polymethylmethacrylate or polyamide, optimization polypropylene or polyethylene, fiber comprises glass fibre, carbon fiber, aramid fibre or polyster fibre, preferred glass fibers.
3. a kind of continuous fiber reinforced thermoplastic resin wrapped tube according to claim 1 is characterized in that, the winding angle of described prepreg tape sheet material is 0 °～90 °, but does not comprise 0 ° and 90 °, preferred 40 °～85 °.
4. a kind of continuous fiber reinforced thermoplastic resin wrapped tube according to claim 1 is characterized in that, the winding number of plies of described prepreg tape sheet material is 2～60 layers.
5. a continuous fiber reinforced thermoplastic resin wrapped tube forming method as claimed in claim 1 is characterized in that, the method may further comprise the steps:
(1) heating prepreg tape sheet material, the resin in the fusing prepreg tape sheet material is so that whole prepreg tape sheet material is softening;
(2) prepreg tape is applied tension force, and according to certain winding angle the winding mandrel on 2～60 layers of cross windings;
(3) in the process of twining, exert pressure on the pipe fitting surface by pressure roller and to improve the adhesion strength of tubing;
(4) after winding is finished, carry out high-temperature heating on winding pipe fitting surface with heater, exert pressure on the pipe fitting surface by pressure roller, improve the space between winding product surface finish and the minimizing winding product, last cooling and demolding is removed mandrel and is got final product.
6. a kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method according to claim 5 is characterized in that, adopts infrared lamp, infrared ceramic piece, heat gun, resistance wire or laser that the prepreg tape sheet material is heated in the step (1); It is 100～500 ℃ that heater produces temperature, determines according to fusing point and the speed of wrap of the resin of selecting, and prepreg tape is fully melted and does not degrade.
7. a kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method according to claim 5 is characterized in that, the prepreg tape tensioning under the effect of tension force described in the step (2).
8. a kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method according to claim 5 is characterized in that, pressure is 0.05～0.2MPa described in the step (3).
9. a kind of continuous fiber reinforced thermoplastic resin wrapped tube forming method according to claim 5, it is characterized in that, being shaped as of winding pipe fitting described in the step (4) is circular or square, the temperature of described high-temperature heating is 50～200 ℃ of fusing points that are higher than the resin of selecting, preferred 250～380 ℃ of the temperature of the heating that heater produces, described pressure is 0.1～0.5MPa.
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| CN105034404A (en) * | 2015-07-23 | 2015-11-11 | 浙江贝欧复合材料制造有限公司 | Manufacturing method for composite material drinking water pipe |
| CN105666842A (en) * | 2016-01-27 | 2016-06-15 | 余姚中国塑料城塑料研究院有限公司 | Processing method of high-temperature thermoplastic composite product |
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Denomination of invention: Continuous-fiber-enhanced thermoplastic resin wound pipe and method for forming same Effective date of registration: 20191202 Granted publication date: 20170222 Pledgee: Chuzhou economic and Technological Development Corporation Pledgor: Shanghai Jieshijie New Materials (Group) Co., Ltd. Registration number: Y2019980000815 |