Polyoxy methylene fiber needle-punched non-woven geotechnical cloth and manufacturing method thereof

A technology of polyoxymethylene fiber and polyoxymethylene, which is applied in the direction of non-woven fabrics, textiles, and papermaking, and can solve the problems of small space for improving the performance of geotextiles, low strength of polypropylene fibers, and poor alkali corrosion resistance, etc. problems, to achieve the effect of high bursting resistance, strong anti-aging ability and high breaking strength

Inactive Publication Date: 2016-06-08
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the performance of raw materials, there is little room for improving the performance of geotextiles: patent document CN102454046A discloses a method for manufacturing high-strength needle-punched nonwoven geotextiles. The use of polypropylene fibers has the disadvantage of low strength. It can be produced by polyester fiber, which has the disadvantage of poor alkali corrosion resistance, and the production process of the needle-punched nonwoven geotextile manufacturing method is relatively complicated and the energy consumption is high
The above existing problems cannot be solved by ordinary non-woven geotextiles, let alone meet the increasing design and use requirements of high-speed railways, highways, airports, major water conservancy projects, etc.

Method used

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  • Polyoxy methylene fiber needle-punched non-woven geotechnical cloth and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The polyoxymethylene filament with a diameter of 20 microns is crimped and cut off by a crimping machine to obtain curly short fibers, the length of the crimped short fibers is 65 mm, and the fiber crimp is 25%; the polyoxymethylene curly short fibers are coarsely opened Polyoxymethylene fiber needle-punched non-woven geotextiles are produced through processes such as fine opening, mixing, carding, web laying, needle punching, and finished product winding.

Embodiment 2

[0019] The polyoxymethylene filament with a diameter of 30 microns is crimped and cut off by a crimping machine to obtain curly short fibers, the length of the crimped short fibers is 65 mm, and the fiber crimp is 30%; the polyoxymethylene curly short fibers are coarsely opened Polyoxymethylene fiber needle-punched non-woven geotextiles are produced through processes such as fine opening, mixing, carding, web laying, needle punching, and finished product winding.

[0020] The obtained polyoxymethylene fiber needle-punched nonwoven geotextiles were subjected to performance tests with reference to various national standards, and a commercially available needle-punched nonwoven geotextile was used as a comparison. The test results are shown in the following table:

[0021]

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Abstract

The invention provides polyoxy methylene fiber needle-punched non-woven geotechnical cloth and a manufacturing method thereof. The needle-punched non-woven geotechnical cloth has the advantages of being large in breaking force, high in bursting resisting capacity, resistant to alkaline corrosion, high in ageing resistance and excellent in abrasion resistance. The manufacturing method includes the following steps of 1, a fiber preprocessing stage, wherein polyoxy methylene filaments are curled and cut off to obtain short curled fibers, and the curling degree of the fibers ranges from 20% to 30%; 2, a geotextile manufacturing stage, wherein the short curled fibers are manufactured into the polyoxy methylene fiber needle-punched non-woven geotechnical cloth.

Description

technical field [0001] The invention relates to a non-woven geotextile, more specifically to a polyoxymethylene fiber needle-punched non-woven geotextile and a preparation method thereof, belonging to the field of civil engineering materials. Background technique [0002] With the country's vigorous development of infrastructure in water conservancy projects, roads, railways, and environmental protection, geotextiles have been more widely used and developed rapidly, among which staple fiber needle-punched nonwoven geotextiles are currently the most widely used main varieties. At present, the raw materials selected for staple fiber needle-punched nonwoven geotextiles are mainly polypropylene and polyester. Due to the limitation of the performance of the raw material itself, the performance improvement space of geotextiles is small: the patent document CN102454046A discloses a method for manufacturing high-strength needle-punched nonwoven geotextiles, and the use of polypropyl...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4326D04H1/46D04H1/4391
CPCD04H1/4326D04H1/4391D04H1/46
Inventor 吕进刘加平刘建忠阳知乾徐德根张丽辉
Owner JIANGSU SOBUTE NEW MATERIALS
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