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Production device and production method of continuous fiber reinforced thermoplastic composite

A technology for enhancing thermoplasticity and continuous fiber, which is applied in the field of composite material production equipment, can solve the problem that continuous fiber is not easy to completely infiltrate, and achieve the effect of enhancing product strength and ensuring product quality

Pending Publication Date: 2019-06-14
江苏苏能新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In view of the above problems, one of the purposes of the present invention is to provide a continuous fiber reinforced thermoplastic composite material production equipment to solve the technical problem that the continuous fiber is not easy to completely infiltrate

Method used

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  • Production device and production method of continuous fiber reinforced thermoplastic composite
  • Production device and production method of continuous fiber reinforced thermoplastic composite
  • Production device and production method of continuous fiber reinforced thermoplastic composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A production method of continuous fiber reinforced thermoplastic composite material includes the following steps:

[0035] 1) The continuous glass fiber bundle 100 (Owens Corning OC-SE4850-1200Tex) is led out from the creel 1, and then transmitted through the tension spreading device 2 and then introduced into the fiber impregnation structure 5;

[0036] 2) Turn on the supercritical carbon dioxide generator 4 and inject supercritical carbon dioxide into the molten thermoplastic resin. The molten thermoplastic resin is located in the screw barrel 31 of the screw extruder 3 to obtain a carbon dioxide-containing molten thermoplastic resin; wherein the thermoplastic resin is Polycarbonate. The temperature of the screw barrel 31 of the screw extruder 3 is 240°C. In the supercritical carbon dioxide generator 4, the pressure control valve 42 is adjusted so that the pressure of the supercritical carbon dioxide after the pressure control valve 42 is 8.5 MPa, and the positive metering...

Embodiment 2

[0040] A production method of continuous fiber reinforced thermoplastic composite material includes the following steps:

[0041] 1) The continuous glass fiber bundle 100 (Zhejiang Jushi 352A 1200Tex) is led out from the creel 1, and then transferred through the tension spreading device 2 and then introduced into the fiber impregnation structure 5;

[0042] 2) Turn on the supercritical carbon dioxide generator 4 and inject supercritical carbon dioxide into the molten thermoplastic resin. The molten thermoplastic resin is located in the screw barrel 31 of the screw extruder 3 to obtain a carbon dioxide-containing molten thermoplastic resin; wherein the thermoplastic resin is Polyethylene terephthalate (PET). The temperature of the screw barrel 31 of the screw extruder 3 is 280°C. In the supercritical carbon dioxide generator 4, the pressure control valve 42 is adjusted so that the pressure of the supercritical carbon dioxide after the pressure control valve 42 is 10 MPa, and the pos...

Embodiment 3

[0046] A production method of continuous fiber reinforced thermoplastic composite material includes the following steps:

[0047] 1) The continuous glass fiber bundle 100 (Zhejiang Jushi 362A 1200Tex) is drawn from the creel 1 and transferred through the tension spreading device 2 and then introduced into the fiber impregnation structure 5;

[0048] 2) Turn on the supercritical carbon dioxide generator 4 and inject supercritical carbon dioxide into the molten thermoplastic resin. The molten thermoplastic resin is located in the screw barrel 31 of the screw extruder 3 to obtain a carbon dioxide-containing molten thermoplastic resin; wherein the thermoplastic resin is Polylactic acid (PLA). The temperature of the screw barrel 31 of the screw extruder 3 is 200°C. In the supercritical carbon dioxide generator 4, the pressure control valve 42 is adjusted so that the pressure of the supercritical carbon dioxide after the pressure control valve 42 is 8.15 MPa, and the positive metering pu...

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PUM

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Abstract

The invention discloses a production device and production method of a continuous fiber reinforced thermoplastic composite. The production device of the continuous fiber reinforced thermoplastic composite comprises a yarn frame, a tension filament spreading device, a screw extruder, a supercritical carbon dioxide generation device, a fiber impregnation structure, a cooling pressure roller device and a traction device; the screw extruder communicates with the fiber impregnation structure, the supercritical carbon dioxide generation device communicates into a screw machine cylinder of the screwextruder, and supercritical carbon dioxide is injected into molten thermoplastic resin in the screw machine cylinder. The production device has the advantages that due to the fact that the supercritical carbon dioxide generation device is arranged, the supercritical carbon dioxide is injected to the molten thermoplastic resin in the screw machine cylinder, the viscosity of the molten thermoplasticresin is reduced, the molten thermoplastic resin can completely impregnate a continuous fiber bundle, after impregnation, the supercritical carbon dioxide reaches the normal pressure, the carbon dioxide is released into the air, the whole product property is not affected, and product quality is ensured.

Description

Technical field [0001] The invention relates to the field of production equipment for composite materials, in particular to a production equipment and production method for continuous fiber reinforced thermoplastic composite materials. Background technique [0002] Continuous fiber reinforced thermoplastic composite material prepreg tape has excellent mechanical properties such as high tensile strength, flexural strength and modulus, excellent high and low temperature impact properties, low density and recyclability. Development, corresponding manufacturing technology has also obtained a major breakthrough. For the manufacture of this material, the dispersion and infiltration of fibers, and the bonding of the interface between the fibers and the resin are the most critical. Therefore, all manufacturing technologies mainly solve fiber dispersion and resin infiltration of fibers. However, at present, prepreg tapes manufactured by impregnating continuous fibers with molten resin a...

Claims

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Application Information

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IPC IPC(8): B29C70/50B29C70/54
Inventor 解廷秀张大松毛建群
Owner 江苏苏能新材料科技有限公司
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