Manufacturing method and equipment for continuous fiber reinforced thermoplastic resin prepreg tape

A technology of reinforced thermoplastic and continuous fiber, applied in the direction of coating, etc., can solve the problems of high requirements, poor impregnation effect, low production cost, etc., achieve good technical effect, improve impregnation effect, and simple operation

Active Publication Date: 2020-04-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the technical problems to be solved by the present invention is that the prior art has high requirements on resin form (film, powder or powder suspension), poor impregnation effect, high production cost and other technical problems, and a continuous fiber reinforced thermoplastic resin prepreg tape is provided Extrusion die, the die is simple and easy, multiple processes such as resin film preparation, resin film and continuous fiber compounding, resin film impregnation of continuous fiber, etc. Suspension) low requirements, good impregnation effect, low production cost, etc.

Method used

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  • Manufacturing method and equipment for continuous fiber reinforced thermoplastic resin prepreg tape
  • Manufacturing method and equipment for continuous fiber reinforced thermoplastic resin prepreg tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this embodiment, the schematic diagram of the equipment used to prepare continuous fiber reinforced thermoplastic resin prepreg tape is as follows figure 1 As shown, it includes a creel (1) with tension control, a splitting comb (3), a preheating device (4), a spreading device (5), a guide roller (6), an extruder (7), an extruder Mold (8), hot pressing roller (11), S type hot pressing roller group (12), hot pressing roller (13), guide roller (14) and winding device (15). The main feature of the invention is that multiple processes such as resin film preparation, resin film and continuous fiber compounding, and resin film impregnation of continuous fiber are completed in one step on the same equipment, and S-type hot pressing roller group is used to improve the impregnation effect of resin on carbon fiber .

[0034] Utilize the method for manufacturing continuous fiber-reinforced thermoplastic resin prepreg with equipment of the present invention, comprise the steps:...

Embodiment 2

[0048] Continuous fiberglass reinforced polypropylene prepreg tape.

[0049] According to the steps in Example 1, the continuous glass fiber bundles (Jushi Group, 362C, 2400dtex) are unwound from the creel (1), and the continuous fiber bundles are arranged in parallel by the splitting comb (3), and the tension on the creel is adjusted. Damping device to control the tension on the continuous fiber bundle during the unwinding process.

[0050] The continuous fiber bundle is passed through a preheating device (4). The preheating method is resistance wire heating, and the heating temperature is set at 230°C.

[0051] The preheated continuous fiber bundle is widened by the spreading device (5), and the spreading method is roller spreading.

[0052] The continuous fiber bundles after spreading go out from the through hole (17) of the mandrel (16), and pass through the hot pressing roller (11), S-shaped hot pressing roller group (12), hot pressing roller (13), Guide roller (14), i...

Embodiment 3

[0057] Continuous carbon fiber reinforced nylon 6 prepreg tape.

[0058] According to the step in the embodiment 1, the continuous carbon fiber bundle (Toray, Japan, T700sc × 12k) is unwound from the creel (1), and the continuous fiber bundle is arranged in parallel by the splitting comb (3), and the tension on the creel is adjusted. Damping device to control the tension on the continuous fiber bundle during the unwinding process.

[0059] The continuous fiber bundle is passed through a preheating device (4). The preheating method is infrared heating, and the heating temperature is set at 280°C.

[0060] The preheated continuous fiber bundle is widened by the spreading device (5), and the spreading method is roller spreading.

[0061] The continuous fiber bundles after spreading go out from the through hole (17) of the mandrel (16), and pass through the hot pressing roller (11), S-shaped hot pressing roller group (12), hot pressing roller (13), Guide roller (14), is fixed o...

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Abstract

The invention provides a method and apparatus for manufacturing a continuous-fiber-enhanced thermoplastic resin prepreg tape, mainly solving the problem that the requirement for resin-state films, powder or powder suspending liquids is high, the impregnating effect is poor, and the production cost is high in the prior art. An extrusion die for a continuous-fiber-enhanced thermoplastic resin prepreg tape is adopted and is characterized by comprising a neck ring (9). The neck ring (9) has an annular outlet (18) and a core mould (16). According to the technical scheme, the middle of the core mould (16) allows continuous fiber bundles (2) to pass through a through hole (17), so that the problem is well solved. The method and apparatus can be used for low-cost mass continuous production of a continuous-fiber-enhanced thermoplastic resin prepreg tape.

Description

technical field [0001] The invention belongs to the technical field of prepreg manufacturing, in particular to a manufacturing method and equipment for a continuous fiber reinforced thermoplastic resin prepreg tape. Background technique [0002] According to the type of resin matrix, fiber-reinforced resin-based composites can be divided into two categories: thermosetting resin-based composites and thermoplastic resin-based composites. Thermosetting resin-based composites are currently the mainstream, but their application fields are limited due to some inherent disadvantages, such as poor toughness, low damage tolerance, long molding cycle, and difficulty in recycling. Thermoplastic resin-based composites have always been a hot spot that people pay attention to. They have the advantages of good toughness, high fatigue strength, short molding cycle, long-term storage at room temperature, and easy recycling. Continuous fiber-reinforced thermoplastic composites were mainly us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/154B29B15/14
CPCB29B15/14B29C48/15
Inventor 张藕生余荣禄
Owner CHINA PETROLEUM & CHEM CORP
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