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Fabrics woven by spread tow yarns consisting of polymer matrix composite and method for producing the same

Inactive Publication Date: 2020-12-10
COREX MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides fabrics made from thin yarns that can lower the weight of each yarn and increase its width. The fabrics, which are made from multiple thin yarns, have a low fiber areal weight and a high resin content. The resulting fabric is thin, lightweight, and made from high-strength yarns.

Problems solved by technology

Therefore, the producing process of the conventional spread tow yarns manufactured of the prepreg sheets consisting of thermosetting composite is inconvenient.
Moreover, conformance of dimensions of the conventional spread tow yarns manufactured with the prepreg sheets consisting of thermoplastic composite is unstable and cannot satisfy demands of the market.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Fabrics woven by spread tow yarns consisting of polymer matrix composite and method for producing the same
  • Fabrics woven by spread tow yarns consisting of polymer matrix composite and method for producing the same
  • Fabrics woven by spread tow yarns consisting of polymer matrix composite and method for producing the same

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Embodiment Construction

[0012]With reference to FIG. 2, a method for producing fabrics woven by spread tow yarns in accordance with the present invention has a tow spreading step S1, an impregnation step S2, a forming step S3, a cutting step S4, and a weaving step S5.

[0013]Each one of multiple tows has multiple fibers 10 unidirectionally arranged. In the tow expanding step S1, the multiple tows extend through preheated spread bars. The spread bars provide the multiple fibers 10 with tension to spread the multiple fibers 10 and expand the width of each tow to a required value. The temperature of each one of the spread bars is higher than or equal to 80° C. and is less than or equal to 120° C. An angle defined between the horizon and each one of the fibers 10 is larger than or equal to 10° and is less than or equal to 70° . The multiple fibers 10 are spread, and each one of the tows turns into a flat tow with unidirectional fibers 10.

[0014]In the impregnation step S2: multiple tows that have been flattened a...

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Abstract

A fabric woven by spread tow yarns has multiple spread tow yarns. Each one of the multiple spread tow yarns is made of matrix being thermoplastic polymer and having multiple fibers unidirectionally arranged. The fiber areal weight of each one of the multiple spread tow yarns is larger than or equal to 70 g / m2 and is less than or equal to 160 g / m2; the width of each one of the multiple spread tow yarns is less than or equal to 100 cm; and the resin content of each one of the multiple spread tow yarns is larger than or equal to 30% and is less than or equal to 50%. The widths and the fiber areal weights and the resin content of the spread tow yarns are low and are capable of providing a thin fabric woven by the spread tow yarns.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to a fabric made of polymer matrix composite, and more particularly to fabrics woven by spread tow yarns consisting of thermoplastic composite and the method for production of the fabrics.2. Description of Related Art[0002]The conventional spread tow yarns manufactured with prepreg sheets consisting of thermosetting composite has drawbacks as follows. Since the thermosetting composite are sticky at room temperature, the prepreg sheets made of thermosetting composite requires release papers to prevent the thermosetting composite from adhering together. The release papers have to be removed before usage of the prepreg sheets consisting of thermosetting composite. Producing steps thereafter have to be proceeded under low temperature condition to avoid the prepreg sheets from setting. Furthermore, the prepreg sheets consist of thermosetting composite are not sticky after heating and cannot adhere to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D03D15/00D02J1/18
CPCD03D15/0088D06M15/71D02J1/18D03D1/00D10B2505/02D03D15/46D03D15/587
Inventor CHIU, SHAO-CHENLIN, YU-CHENHSU, PO-YUEHLIU, CHENG-CHIULIN, TSUNG-YING
Owner COREX MATERIALS CORP
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