JOURNAL OF TEXTILE RESEARCH ›› 2018, Vol. 39 ›› Issue (01): 66-70.doi: 10.13475/j.fzxb.20170301405

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Preparation and properties of high strength and anti-aging geotextile

  

  • Received:2017-03-08 Revised:2017-06-09 Online:2018-01-15 Published:2018-01-16

Abstract:

In order to improve durability and safety of geotextile inreal engineer application, anti-aging polypropylene/high strength and high modulus polyvinl alcohol short fiber mixture geotextile was prepared. The influence of high strength and high modulus polyvinl alcohol (PVA) short-fiber content on properties of geotextile was discussed. The inner microcosmic construction was investigated using scanning electron microscopy. The properties of weatherability, filtration characteristics and metalic ions resistance were investigated by relevant tests. The results shown that PVA fibers disperse in geotextile uniformly and cause fibers entanglement together; the  properties of mechanical and filtration characteristics are enhanced when the content of PVA fibers is equal to 60%, dry and wet breaking strenght are 29.7 and 34.8 kN/m, respectively, and the value of the opening size is 0.109 3 mm. At the same time, weatherability and metallic ions resistance of geotextile are enganced, the strength retention is 73.7% and 64.3% for photo-oxidation (90d) and thermal oxidation (18d) after immersing in copper nitrate solution.

Key words: composite geotextile, weatherability, metallic ion resistance, ante-aging polypropylene fiber, high strength and high modulus polyvinyl alcohol fiber

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