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Three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof

A composite spinning and carbon fiber technology, applied in the direction of yarn, textiles and paper making, can solve problems such as splitting, use and processing restrictions, and achieve the effect of simple method

Inactive Publication Date: 2012-02-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Carbon filaments are widely used in the industrial field due to their excellent mechanical properties, but brittle carbon filaments, and similar other fibers, such as glass fiber filaments, carbon fiber filaments, basalt filaments, and aramid filaments Silk, easy to bend, brittle, or fibrillated and split during processing and use, and its use and processing are restricted

Method used

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  • Three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof
  • Three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Spinning nylon + carbon filament bundle triaxial composite yarn

[0031] Get two nylon roving bobbins (i.e. two roving bobbins) and one carbon filament bobbin (i.e. a small roll of long filament bobbins equipped with carbon filament bundles), and obtain two bundles of nylon staple fiber strands and a carbon filament bobbin according to the above-mentioned process steps. The composite ratio of filament bundles is: the composite mass ratio of nylon staple fiber strands / nylon staple fiber strands / carbon filament strands is 20 / 20 / 60. The carbon filament tow is flattened with the tension of the positioning tension wheel at 10cN and the enveloping angle of 120°, and is fed into the front roller nip along the central axis; two bundles of nylon staple fibers (axis II and axis III) With the natural tension of drafting and the spacing of 8mm, it is symmetrical to the central axis (axis I) of the carbon filament bundle and fed into the nip of the front roller. For de...

Embodiment 2

[0032] Example 2: Spinning nylon+carbon filament bundle triaxial composite yarn

[0033] Get two nylon roving bobbins (i.e. two roving bobbins) and one carbon filament bobbin (i.e. a small roll of long filament bobbins equipped with carbon filament bundles), and obtain two bundles of nylon staple fiber strands and a carbon filament bobbin according to the above-mentioned process steps. The composite ratio of filament bundles is as follows: the composite mass ratio of nylon staple fiber strands / nylon staple fiber strands / carbon filament strands is 25 / 25 / 50. The carbon filament tow is flattened with the tension of the positioning tension wheel at 8cN and the enveloping angle of 120°, and is fed into the front roller nip along the central axis; two bundles of nylon staple fibers (axis II and axis III) With the natural tension of drafting and 10mm spacing, it is symmetrical to the central axis (axis I) of the carbon filament bundle and fed into the nip of the front roller. For det...

Embodiment 3

[0034] Example 3: spinning polypropylene + basalt filament triaxial composite yarn

[0035] Take two polypropylene roving bobbins and one basalt filament bobbin, and obtain two bundles of polypropylene staple fiber strands and one basalt filament strand according to the above process steps, and the composite ratio is: polypropylene staple fiber strands / polypropylene staple fiber strands / basalt long filament strands The composite mass ratio of the tow is 16 / 16 / 68. The basalt filament bundle is flattened by positioning the tension wheel with a tension of 15cN and a wrapping angle of 150°, and feeds the front roller nip through the central axis; two bundles of polypropylene staple fiber strands (axis II and axis III) With the natural tension of drafting and the spacing of 6mm, it is symmetrical to the central axis (axis I) of the basalt filament bundle and fed into the nip of the front roller. For details, see figure 1 shown. After the three-axis fiber strips come out of the fr...

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Abstract

The invention relates to a three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof. The three-axis compound spinning process for symmetrically protecting carbon fibers is characterized in that: a positioning tension wheel for controlling the feeding flattening and tension of carbon endless tows and a pair of bunching devices for controlling symmetrical positioning of chopped fiber yarn bars are arranged on an ordinary ring spinning machine; compound spinning for twisting, wrapping and protecting a bunch of carbon endless tows is performed by using two bunches of chopped fiber yarn bars which are fed symmetrically; and two bunches of chopped fiber yarn bars and a bunch of endless tows are fed synchronously in a three-axis form to form compound yarns in which the carbon endless tows are tensioned and enhanced inside and the chopped fiber yarn bars are coated softly outside. Due to the adoption of the process, the problem of difficulty in spinning yarns of fragile fibers at high strength in a non-bending way is solved.

Description

technical field [0001] The invention relates to a triaxial composite spinning technology and application for symmetrically protecting carbon fibers, which belongs to the high-performance fiber composite spinning technology. Background technique [0002] Carbon filaments are widely used in the industrial field due to their excellent mechanical properties, but brittle carbon filaments, and similar other fibers, such as glass fiber filaments, carbon fiber filaments, basalt filaments, and aramid filaments Silk is easy to bend, brittle, or fibrillated and split during processing and use, and its use and processing are limited. Therefore, it is necessary to take effective protection measures to protect these fibers through processing and convenient use. [0003] At present, the spinning of such high-performance fibers is mostly staple fiber blending. Jin Yonglu's invention patent (patent number: 01106890.60) ramie aramid fiber blended yarn and its processing technology is to ble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04D02G3/36
Inventor 于伟东蔡光明柯贵珍石先军吴济宏
Owner WUHAN TEXTILE UNIV
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