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Geotextile production method

A production method and technology of geotextiles, applied in textiles and papermaking, fiber treatment, light-resistant fibers, etc., can solve the problems of cumbersome production process of geotextiles, and achieve the improvement of anti-ultraviolet mechanical properties, strength, and thermal stability Effect

Inactive Publication Date: 2018-08-03
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of this specification provides a geotextile production method to solve the problem of cumbersome geotextile production process in the prior art

Method used

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Examples

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Effect test

Embodiment 1

[0039] The invention discloses a production method of a high-strength anti-aging geotextile for landfills, which is prepared by impregnating polypropylene filament fibers with polytetrafluoroethylene emulsion or coating polypropylene needle felt.

[0040] The dipping process includes: placing the polytetrafluoroethylene emulsion in the stock tank, the melt-extruded polypropylene filament fiber passes through the stock tank filled with the polytetrafluoroethylene emulsion after preliminary drafting, the dynamic advance dipping time is 3min, and the drying temperature is 110°C. ℃;

[0041] The coating process includes: placing the polytetrafluoroethylene emulsion in the slurry tank, the polypropylene geotextile passes through the liquid surface of the slurry tank filled with polytetrafluoroethylene at a low speed, and the slurry is fully brushed on the geotextile horizontally and vertically by multiple pairs of brushes. Use a brush to cross-coat the front and back 5 times in a h...

Embodiment 2

[0043] The invention discloses a production method of a high-strength anti-aging geotextile for landfills, which is prepared by impregnating polypropylene filament fibers with polytetrafluoroethylene emulsion or coating polypropylene needle felt.

[0044] The dipping process includes: placing the polytetrafluoroethylene emulsion in the stock tank, the melt-extruded polypropylene filament fiber passes through the stock tank filled with the polytetrafluoroethylene emulsion after preliminary drafting, the dynamic advance dipping time is 3 minutes, and the drying temperature is 130 ℃;

[0045]The coating process includes: placing the polytetrafluoroethylene emulsion in the slurry tank, the polypropylene geotextile passes through the liquid surface of the slurry tank filled with polytetrafluoroethylene at a low speed, and the slurry is fully brushed on the geotextile horizontally and vertically by multiple pairs of brushes. Use a brush to cross the front and back 5 times in a horiz...

Embodiment 3

[0047] The invention discloses a production method of a high-strength anti-aging geotextile for landfills, which is prepared by impregnating polypropylene filament fibers with polytetrafluoroethylene emulsion or coating polypropylene needle felt.

[0048] The dipping process includes: placing the polytetrafluoroethylene emulsion in the stock tank, the melt-extruded polypropylene filament fiber passes through the stock tank filled with the polytetrafluoroethylene emulsion after preliminary drafting, the dynamic advance dipping time is 3min, and the drying temperature is 150°C. ℃;

[0049] The coating process includes: placing the polytetrafluoroethylene emulsion in the slurry tank, the polypropylene geotextile passes through the liquid surface of the slurry tank filled with polytetrafluoroethylene at a low speed, and the slurry is fully brushed on the geotextile horizontally and vertically by multiple pairs of brushes. Use a brush to cross-coat the front and back 5 times in a h...

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Abstract

The invention provides a geotextile production method. The geotextile production method comprises the steps as follows: acquiring a geotextile material; performing preparation process finishing on thegeotextile material with a polytetrafluoroethylene emulsion to prepare high-strength and aging-resistant geotextile for refuse landfills. The geotextile production method is simple and easy to operate and can meet the requirement of industrial continuous production. The polytetrafluoroethylene emulsion has particle dispersion uniformity, high solid content and stable aging resistance, and fiber or a geotextile material obtained by finishing with an impregnation or coating method has improved strength, reduced strength loss ratio after ultraviolet aging and a good ultraviolet radiation resisting effect.

Description

technical field [0001] This specification relates to the geotechnical field, in particular to a method for producing geotextiles. Background technique [0002] Geotextile is a kind of geosynthetic fiber fabric, widely used in civil engineering and environmental protection fields, including: non-woven geotextiles, woven geotextiles or reinforced geotextiles, warp-knitted composite geotextiles, anti-seepage geotextiles, short Needle-punched geotextiles, woven geotextiles, woven geotextiles. Among them, non-woven geotextiles, that is, non-woven geotextiles, have various application functions, such as separation, reinforcement, filtration, drainage, anti-seepage, etc., so they are used in many special fields such as domestic waste landfills, red mud tailings ponds, etc. be widely used. Common high-strength geotextiles are polyester filament spunbonded needle-punched geotextiles and high-strength anti-purple polypropylene staple fiber needle-punched geotextiles. It is very impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D06M13/352D06M13/224D06M15/643D06M101/20
CPCD06M15/256D06M13/224D06M13/352D06M15/643D06M2101/20D06M2200/25
Inventor 李素英朱梦玲王静付译鋆张瑜张伟臧传锋张广宇颜婷婷戴家木顾鹏斐
Owner NANTONG UNIVERSITY
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