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A preparation method of fiber tape reinforced thermoplastic resin composite pipe

A technology for enhancing thermoplastic and resin composites, which is applied in the field of composite pipes, can solve the problems of poor interface bonding of fiber tape winding composite pipes, and achieves the effects of reasonable equipment structure, simple production method and reduced production cost.

Active Publication Date: 2018-06-29
LINHAI WEIXING NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a method for preparing a composite pipe with excellent performance, which solves the defect that the interface of the fiber tape wound composite pipe is not well bonded

Method used

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  • A preparation method of fiber tape reinforced thermoplastic resin composite pipe
  • A preparation method of fiber tape reinforced thermoplastic resin composite pipe
  • A preparation method of fiber tape reinforced thermoplastic resin composite pipe

Examples

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preparation example Construction

[0028] Such as Figure 1-3 Shown, a kind of preparation method of fiber tape reinforced thermoplastic resin composite pipe of the present invention comprises the steps:

[0029] a. The inner layer core tube is unwound by the unwinding device 21, and the tension force of the unwinding device 21 is controlled by a motor to ensure that the pipeline is in a horizontal state during the traction process;

[0030] b. Preheat the inner layer core tube unwound in step a by the first preheating / winding device 11, and spray a high temperature resistant adhesive on the outer surface of the inner layer core tube by the adhesive spraying device 5, high temperature resistant The adhesive is a high-temperature-resistant adhesive multifunctional epoxy resin system; the first preheating / winding device 11 is heated by the short-wave infrared heating method of the lamp tube 9, and the distribution of the lamp tube 9 is uneven, and the lower part is used more than the upper part. The way distribu...

Embodiment 1

[0040] In this embodiment, the present invention discloses a method for preparing a fiber tape-reinforced thermoplastic resin composite pipe. The inner core tube is unwound by the unwinding device 21, first preheated by the first preheating / winding device 11, and then Adhesive spraying device 5 sprays high-temperature-resistant adhesive, and then winds the fiber tape on the inner core tube, heats the fiber tape 7 in the form of hot air blower 6 during winding, and squeezes it with pressure roller 8 after winding After the first layer is wound, it passes through the first central positioning frame 31 in turn, and the second winding device 12 performs the second layer winding, which also heats and extrudes the fibers, and the rotation direction of the second winding device 12 is the same as that of the first preheating / winding device 11 On the contrary, the speed is the same. After winding the second layer of fiber tape, it passes through the second center positioning frame 32, a...

Embodiment 2

[0043] This embodiment is basically the same as Embodiment 1, the difference is:

[0044] In this example, the fiber tape used is a continuous unidirectional carbon fiber tape with a width of 30 mm, a thickness of 0.15 mm, a fiber mass content of 70%, a resin matrix of PERT, a lamp tube setting temperature of 350°C, and a high-temperature binder of three Functional group epoxy resin AFG-90 / maleic anhydride system, the temperature of hot air is 400°C, the setting ratio of the tension from inside to outside of the four-layer fiber tape is 100:90:80:70, and the winding angle is 60°.

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Abstract

A preparation method for a fiber-band-reinforced thermoplastic resin compound pipeline includes the following steps that an inner layer pipe core is unwound; the inner layer pipe core is preheated, and the outer surface of the inner layer pipe core is coated with a high-temperature-resistant bonding agent; a first layer fiber band is wound on the outer surface of the inner core pipe core, and the fiber band is heated and squeezed at the same time; a second layer fiber band, a third layer fiber band and a fourth layer fiber band are sequentially wound, heated and squeezed; and the inner layer pipe core with winding completed is rolled. The preparation method has the beneficial effects that fibers on all layers of the produced fiber-band-reinforced thermoplastic resin compound pipeline are tightly combined, composite layers and the inner layer core pipe are firmly combined, the work pressure is large, and the fiber-band-reinforced thermoplastic resin compound pipeline is resistant to corrosion, high in safety and the like. In addition, the method is simple, the device structure and arrangement are reasonable, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of composite pipes, in particular to a preparation method of fiber tape reinforced thermoplastic resin composite pipes. Background technique [0002] Most of the pipelines currently used in the petroleum industry are metal pipes, and a small part of FRP pipes. Metal pipes are easily corroded and have a service life of about 5 years, while FRP pipes are brittle and inconvenient to connect. There are many joints and high laying costs. Oil transportation is not convenient for large-scale application, so it is necessary to develop pipelines that are corrosion-resistant and have a long service life. Composite pipes lined with plastic and reinforced with unidirectional continuous fibers can meet such requirements at the same time. However, at present, there are few preparation methods for such composite pipes, and they are all in the process of exploration. Therefore, a reasonable method needs to be designed. to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/50B29C70/54B29L23/00
CPCB29C70/504B29C70/54B29L2023/00
Inventor 周正伟冯金茂
Owner LINHAI WEIXING NEW BUILDING MATERIALS CO LTD
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