Manufacturing method and manufacturing equipment of prepreg

A technology of manufacturing equipment and manufacturing methods, applied in the direction of coating, etc., can solve the problem of unstable resin adhesion

Pending Publication Date: 2022-04-08
FORMOSA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the fiber bundle is extruded, the amount of resin attached to the fiber bundle is unstable due to changes in yarn tension

Method used

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  • Manufacturing method and manufacturing equipment of prepreg
  • Manufacturing method and manufacturing equipment of prepreg
  • Manufacturing method and manufacturing equipment of prepreg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 adds surface-treated rollers to transport the fiber bundles, wherein the rollers can be 2 to 12, for example, 5 to 8. In this example, for example figure 1 Measure the width of the fiber bundle between the tension controller 140 and the adjusting roller 180, and observe the ear-folding condition of the fiber bundle, and the results are listed in Table 1 below. Among them, the width of the fiber bundle is measured every 30 seconds, and the average value of 20 measurements; and the number of ear folds is the number of ear folds that occur in the fiber bundle in a length of 500 meters.

[0038] Table 1

[0039] scroll wheel Fiber bundle width (mm) Number of ear folds (times) none 7.9 13 have 10.4 4

[0040] It can be seen from Table 1 that the fiber bundles can be effectively paved by using the rollers to assist the fiber bundles, so the width of the fiber bundles is larger than that of the fiber bundles without rollers. In a...

Embodiment 2

[0041] Example 2 A tension controller was added to observe the hairiness of the fiber bundle, and the observation results are listed in Table 2 below. Here, the amount of hairiness is the amount of hairiness that appears in a fiber bundle with a length of 500 meters.

[0042] Table 2

[0043] Tension controller Hairiness (g) none 0.5～1 have almost none

[0044] It can be seen from Table 2 that after the tension controller is added, the tension on the fiber bundle is stable, so the fiber bundle has almost no hairiness, and its hairiness is obviously less than that of the fiber bundle without tension controller to adjust the tension.

Embodiment 3

[0045] Embodiment 3 adds rollers and tension controllers at the same time. In this embodiment, the same as for example figure 1 Measure the width of the fiber bundle between the tension controller 140 and the adjusting roller 180, and measure the variation rate of the resin content of the prepreg made. The results are listed in Table 3 below. Among them, the width of the fiber bundle is measured every 30 seconds, and the average value of 20 measurements; the resin content variation rate is the resin content variation rate between 20 small units in the prepreg, and each small unit is 5cm*5cm.

[0046] table 3

[0047]

[0048] It can be seen from Table 3 that after the tension controller is added, the fiber bundle can be prevented from being too large or too small due to the inertial action of starting and stopping, and then the additional roller can be used to flatten the fiber bundle and expand the width of the fiber bundle , so that the impregnation state of fiber bund...

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Abstract

The invention relates to a manufacturing method and manufacturing equipment of prepreg. In the method, a plurality of rollers are used for conveying fiber bundles of a fiber bundle roll to a sticking and rubbing wheel and paving the fiber bundles. The rollers are sequentially arranged between the fiber bundle roll and the sticking and rubbing wheel and are separated from each other. And conveying the fiber bundle by using the sticking and rubbing wheel so as to dip the resin on the wheel surface of the sticking and rubbing wheel onto the fiber bundle. And when the roller and the sticking and rubbing wheel convey the fiber bundles, the tension controller is used for regulating and controlling the tension of the fiber bundles on the roller and the sticking and rubbing wheel. The fiber bundle impregnated with the resin is wound by a winding drum. The roller is used for conveying the fiber bundle, and the fiber bundle can be flattened and widened, so that the lug folding condition of the fiber bundle can be reduced, the width of the fiber bundle can be stabilized, the impregnation effect of the fiber bundle and resin can be improved, and the resin content variation rate of the prepreg can be effectively reduced. In addition, tension borne by the fiber bundles can be stabilized, and then the hairiness amount of the fibers can be reduced.

Description

technical field [0001] The present invention relates to a prepreg manufacturing technology, and in particular to a prepreg manufacturing method and manufacturing equipment. Background technique [0002] When making prepreg, the general technique is to first extract the fiber bundle from the fiber bundle roll, and make the fiber bundle pass through the impregnated state of the resin rubbing wheel to impregnate the resin, and then wind the resin-impregnated fiber bundle on the take-up drum, To form a prepreg. [0003] In such an embodiment, the fiber bundle is wound up by the action among the fiber bundle, the rubbing wheel, and the winding roller during the resin impregnation treatment. However, when the take-up drum starts and ends, the rubbing wheels do not precisely synchronize the rotation of the take-up drum due to the pull between them or their own inertia, thus causing the produced Part of the finished prepreg was not fully impregnated. [0004] Another impregnation...

Claims

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Application Information

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IPC IPC(8): B29B15/12
CPCB29B15/122B29C70/50B29C70/86
Inventor 张怡娟周建旭黄龙田
Owner FORMOSA PLASTICS CORP
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