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Polypropylene fiber for geotextile, preparation method thereof and geotextile

A polypropylene fiber and geotextile technology, applied in geotextiles, fiber treatment, fiber chemical characteristics, etc., can solve the problems of low strength of coarse denier polypropylene fibers and short service life of polypropylene geotextiles, so as to prolong the service life, The effect of increasing the tensile strength

Inactive Publication Date: 2020-12-04
NANTONG NTEC MONOFILAMENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coarse denier polypropylene fibers are generally prepared by melt extrusion, air cooling, one-time drawing process and twisting treatment. However, the strength of coarse denier polypropylene fibers prepared by the above-mentioned preparation process is low, which leads to the use of polypropylene geotextiles outdoors. shorter service life

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  • Polypropylene fiber for geotextile, preparation method thereof and geotextile

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] This application provides a kind of preparation method of the polypropylene fiber that is used for geotextile, the monofilament fineness of polypropylene fiber is 16-31dtex, and preparation method comprises:

[0027] S100: melting and extruding polypropylene fiber raw materials to obtain as-...

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Abstract

The invention discloses a polypropylene fiber for geotextile, a preparation method thereof and the geotextile. The preparation method of the polypropylene fiber for the geotextile comprises the following steps that melt extrusion treatment is carried out on raw materials to obtain spun filaments, wherein the raw materials comprise polypropylene; liquid cooling treatment is carried out on the spunfilaments; stretching treatment is carried out on the spun filaments subjected to the liquid cooling treatment two times; and the spun filaments subjected to the stretching treatment two times are twisted to obtain the polypropylene fiber. According to the polypropylene fiber for the geotextile, the preparation method thereof and the geotextile, the tensile strength of the polypropylene fiber canbe remarkably improved by carrying out the liquid cooling treatment and the two-time stretching treatment on the spun filaments, so that the tensile strength of the geotextile is improved, and the service life of the geotextile is prolonged.

Description

technical field [0001] The invention generally relates to the technical field of geotextiles, in particular to the technical field of coarse denier polypropylene fibers, and in particular to polypropylene fibers for geotextiles, a preparation method thereof, and geotextiles. Background technique [0002] Geotextiles are water-permeable geosynthetic materials, which are divided into woven geotextiles and non-woven geotextiles according to the manufacturing process. Due to its outstanding advantages such as light weight, high tensile strength, convenient construction, anti-microbial erosion and good corrosion resistance, geotextiles are mainly used in engineering fields such as bank protection and flushing. Among them, polypropylene geotextiles are most commonly used in geotextiles, that is, geotextiles mainly made of polypropylene fibers. Therefore, the application of polypropylene fibers in geotextiles is in great demand and has a good market prospect. [0003] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/088D01D5/098D01F1/10D01F6/46D04H1/4291D04H3/007
CPCD01D5/0885D01D5/098D01F6/46D01F1/10D01F1/106D04H1/4291D04H3/007D10B2505/204
Inventor 马海燕王城
Owner NANTONG NTEC MONOFILAMENT TECH CO LTD
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