Application and consideration of polylactic acid nano non-woven fabric fibers with improved melt-blowing method for plant culture media

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  • 改良型メルトブロー法によるポリ乳酸ナノ不織布繊維の植物培地への応用と考察
  • カイリョウガタ メルトブローホウ ニヨル ポリニュウサン ナノ フショクフ センイ ノ ショクブツ バイチ エノ オウヨウ ト コウサツ

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In general, soil substitutes, such as rockwool and polyester fiber medium, were used as solid medium for plant cultivation. However, these media are not biodegradable and aggravate environmental pollution. Therefore, replacements with biodegradable materials are necessary. To that end, an improved melt-blowing method has been developed previously that facilitates a stable manufacturing process for the mass production of semi-microfiber nonwoven fabrics of lipophilic polypropylene. In addition, high oil adsorption was achieved based on the trial-produced nanofibers. In the present report, we focused on the hydrophilic and biodegradable features of polylactic acid (PLA) nano non-woven fabric produced by the improved melt-blowing method and examined its application as a fiber-aggregate-based culture medium. Several plants were cultivated using trial-produced PLA nanofibers, and the influence of different fiber diameters and bulk densities on moisture content and matric potential was also investigated. The results show that PLA fibers can be used to successfully cultivate plants.

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