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Functionalized polypropylene fibre and its preparation method

A polypropylene fiber and functional technology, applied in the field of functional polypropylene fiber and its preparation, can solve the problems of poor polypropylene blendability, reduced fiber strength, difficulty in spinning formation, etc., and achieve improved spinnability and fiber formation. the effect of strength

Inactive Publication Date: 2006-05-03
上海依福瑞实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these fibers are: due to the poor meltability of the added fiber functional material and the carrier, that is, polypropylene, it is difficult to form spinning, and the fiber strength is reduced, generally at 2.5CN / dtex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Preparation of inorganic solid-phase substances: firstly, the natural gem-grade tourmaline is beneficiated, crushed, and wet-process high-energy grinding to D 50 ≤0.6 microns, dried to obtain tourmaline powder with a purity of ≥95%; according to 25% tourmaline, a fineness of 5-20 nanometers, 10% of aluminum oxide with a purity of 99.9%, 10% of zirconium phosphate-loaded silver antibacterial agent, ≤1 30% of micron submicron silicon dioxide, 25% of submicron titanium dioxide ≤1 micron, mixed by high-speed jet mill, so that aluminum oxide can coat other inorganic substances;

[0017] (2) using a twin-screw extruder at a ratio of 25% to the inorganic solid-phase substance prepared in step (1) and polypropylene chips, and melt-mixing at 260° C. to obtain polypropylene masterbatches;

[0018] (3) The polypropylene masterbatch that step (2) makes is added in the ratio of 15% to the polypropylene chip and is spun to obtain the long fiber of fiber by conventional melt spinn...

Embodiment 2

[0021] (1) Preparation of inorganic solid-phase substances: firstly, the natural gem-grade tourmaline is beneficiated, crushed, and wet-process high-energy grinding to D 50 ≤0.5 microns, dried to obtain tourmaline powder with a purity of ≥95%; according to 20% of tourmaline, the fineness is 5-20 nanometers, 10% of aluminum oxide with a purity of 99.9%, 10% of zirconium phosphate-loaded silver antibacterial agent, ≤1 40% of micron submicron silicon dioxide, 20% of ≤1 micron submicron titanium dioxide, mixed by high-speed jet mill, so that aluminum oxide can coat other inorganic substances;

[0022] (2) using a twin-screw extruder at a ratio of 30% to the inorganic solid-phase substance prepared in step (1) and polypropylene chips, and melt-mixing at 260° C. to obtain polypropylene masterbatches;

[0023] (3) The polypropylene masterbatch that step (2) makes is added in the ratio of 10% to the polypropylene chip and is spun to obtain the long fiber of fiber by conventional melt ...

Embodiment 3

[0025] (1) Preparation of inorganic solid-phase substances: firstly, the natural gem-grade tourmaline is beneficiated, crushed, and wet-process high-energy grinding to D 50 ≤0.7 microns, dried to obtain tourmaline powder with a purity of ≥95%; 30% of tourmaline, fineness of 5-20 nanometers, 10% of aluminum oxide with a purity of 99.9%, 15% of zirconium phosphate-loaded silver antibacterial agent, ≤1 Micron submicron silicon dioxide 30%, submicron titanium dioxide ≤ 1 micron 15%, mixed with a high-speed jet mill, so that aluminum oxide can coat other inorganic substances;

[0026] (2) using a twin-screw extruder in a ratio of 40% to the inorganic solid-phase substance prepared in step (1) and polypropylene chips, and melt-mixing at 260° C. to obtain polypropylene master batches;

[0027] (3) Add the polypropylene masterbatch prepared in step (2) to polypropylene chips in a ratio of 15% and spin to obtain short fibers of fibers by conventional melt spinning method, the fineness ...

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Abstract

The invention discloses a functional polypropylene fibre contained and fused a plurality of natural inorganic materials and polypropylene, which comprises: tourmaline, alumina, zirconium phosphate carried-Ag antibacterial agent, silicon dioxde, and titania. The preparation method comprises: breaking and mixing the materials, fusing and mixing said materials with polypropylene slice to obtain mother grain; then, using common fusion spinning method to treat said grain and slice. This product has well spinnability, high strength, and deodorization function.

Description

Technical field: [0001] The invention relates to a functional polypropylene fiber and a preparation method thereof, in particular to a functional polypropylene fiber containing various inorganic natural substances mixed with polypropylene and a preparation method thereof. Background technique: [0002] At present, some substances are added to chemical fibers to make fibers produce additional functions, which have been reported at home and abroad. As proposed in Japanese patent 2001279574, tourmaline particles (more than 20 microns and specific surface area of ​​2 m2 / g or more) can be fixed on the surface of the fiber, which can make the fiber emit far infrared and deodorize, and its far infrared emission rate can reach 85%. , The deodorization rate can reach 80%; Another example is the Chinese patent CN1376814A which proposes a method for making antibacterial anion fibers by blending silver-loaded tourmaline and polypropylene. The disadvantages of these fibers are: due to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10
Inventor 许云生蒋士忠曾德祥
Owner 上海依福瑞实业有限公司
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