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Multicomponent white conductive fiber and preparation method thereof

A technology of conductive fiber and production method, applied in fiber treatment, conductive/antistatic filament manufacturing, conjugated synthetic polymer artificial filament, etc., can solve the problems of poor discharge effect, low whiteness, high whiteness, etc. Achieve the effects of post-processing, high whiteness, and whiteness improvement

Inactive Publication Date: 2010-03-24
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN 101050563A (publication number) discloses a two-component polymer conductive fiber and its molding composite form, and the conductive metal compound used is a metal compound containing tin, zinc, titanium, antimony, silver, copper or nickel Particles, these metal compound particles are gray, and the whiteness is not high; the composite form is core-sheath composite type, sea-island composite type, side-by-side composite type or cut fiber composite type. In the core-sheath and sea-island composite type, the conductive component is coated on In the ordinary polymer layer, the discharge effect is poor and the whiteness is high; while the conductive components are exposed in the side-by-side and cut-fiber composite type, although the discharge effect is improved, the whiteness is low

Method used

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  • Multicomponent white conductive fiber and preparation method thereof
  • Multicomponent white conductive fiber and preparation method thereof
  • Multicomponent white conductive fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 65 parts of nano-conductive powder (tin oxide coated on the surface of titanium dioxide or antimony oxide coated on the surface of titanium dioxide) with moisture less than 100 ppm after vacuum drying, 35 parts of polytrimethylene terephthalate with moisture less than 100 ppm after drying and calcium stearate Or magnesium stearate is mixed and then fed into the screw extruder. The set temperature of the screw is 250°C. After blending and extruding, it is pelletized and dried, and the moisture content is controlled below 100ppm. The dried conductive masterbatch is put into No. 1 spinning box, set the screw temperature at 265°C, and the melt density of the masterbatch after extrusion is 2.8g / m 3 ;Dried good antistatic agent (1%wt relative to fiber-forming polymer), low powder content conductive masterbatch (1%wt relative to fiber-forming polymer, conductive powder is titanium dioxide surface coating tin oxide or titanium dioxide The surface is coated with antimony oxide) ...

Embodiment 2

[0031] Using the same conductive masterbatch as in Example 1, common full-dull polyethylene terephthalate, antistatic masterbatch varieties and additions, spinning temperature and winding conditions, change the conductive masterbatch and common full-dull polyethylene terephthalate. The mass ratio of ethylene terephthalate is 50:50. It is spun with an open eccentric spinneret, the winding speed is set at 2500m / min, the fineness is controlled at about 140dtex / 8F, and the volume resistivity of the obtained pre-oriented yarn is 10 3～4 The Ω·cm tone L value is 54, and the length of the exposed portion of the conductive component in the circumferential direction accounts for 6.3% of the circumference of the single fiber section.

[0032] The wound pre-oriented yarn is stretched. The temperature of the first hot roller of the stretching machine is set to 90°C, the temperature of the second hot roller is 130°C, the stretching ratio is 1.9, and the stretching speed is 500m / min. The vol...

Embodiment 3

[0034] Adopt the same conductive masterbatch manufacturing process as in Example 1 (nano conductive powder is zinc oxide), conductive powder content, fiber-forming polymer, antistatic masterbatch kind and addition, spinning temperature, composite ratio and winding Conditions, use the open eccentric spinneret to spin, set the winding speed to 2500m / min, control the fineness to about 140dtex / 8F, and the volume resistivity of the obtained pre-oriented yarn is 10 5 Ω·cm, the color tone L value is 64, and the length of the exposed part of the conductive component in the circumferential direction accounts for 2.8% of the circumference of the single fiber section.

[0035]To stretch the wound pre-oriented yarn, the temperature of the first hot roller of the stretching machine is set to 90°C, the temperature of the second hot roller is 130°C, the stretching ratio is 1.7, and the stretching speed is 500m / min. The volume resistivity of the fully oriented silk after stretching is 10 5 Ω...

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Abstract

The invention discloses multicomponent white conductive fiber and a preparation method thereof. The conductive fiber comprises first polymer containing conductive powder and second polymer mainly containing fibre-forming polymer, wherein the first polymer is partially coated in the second polymer and the perimeter of the contact surface of the first polymer and second polymer accounts for 85%-98%of the perimeter of the first polymer. The invention is characterized in that light nanometer conductive powder is used so as to improve the defect that owning to the dark color of carbon black and carbon nanotubes, the application of the conductive fiber is limited; the open eccentric core and C-type spinneret plates are used to ensure the full exposure of conductive component and increase the whiteness of the conductive fiber; the conductive component is partially embedded in the fibre-forming polymer so as to reduce the exposure of conductive component, increase the collection property of monofilament, benefit the post-processing and ensure that during the post-processing and textile-using processes, the conductive component is not easy to drop off, thus achieving the permanent conductive effect.

Description

technical field [0001] The invention relates to a conductive fiber, in particular to a multi-component white conductive fiber. Background technique [0002] Ordinary polymer fibers tend to generate static electricity due to friction in dry air. In the dark night, when we take off nylon and woolen clothes, sparks and "beeping" sounds will be emitted, which are basically harmless to the human body. However, the human body is exposed to static electricity for a long time, which can cause restlessness, headache, chest tightness, dyspnea, and cough. On the operating table, static sparks can cause an explosion of anesthetics, harming doctors and patients; in coal mines, it can cause gas explosions, which can lead to death and injury of workers and scrap the mine. Static electricity can absorb a large amount of dust in the air, and the greater the chargeability, the more the amount of dust will be absorbed, and the dust often contains a variety of toxic substances and germs, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/09D01F8/14D01D5/30D01D5/253
Inventor 张雷曹海兵佐藤正幸
Owner TORAY FIBER RES INST(CHINA) CO LTD
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