文化大學機構典藏 CCUR:Item 987654321/2688
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    題名: The formation and growing properties of poly(ethylene terephthalate) fiber growing media after thermo-oxidative treatment
    作者: Chang, Chih Pong
    Lin, Shang Ming
    貢獻者: 紡工系
    關鍵詞: fiber medium
    modeling
    thermo-oxidative degradation
    growing properties
    日期: 2007
    上傳時間: 2009-11-13 15:05:35 (UTC+8)
    摘要: This research uses three kinds of recycled synthetic fibers that all possess excellent thermal plasticity property as raw material to develop a new firm cultivation media: polyethylene terephthalate, polyamide and polypropylene. One can not only freely control plants cultivation growing condition by changing bulk density of the media, but also solve disposal problem after usage by applying thermal oxidative treatment during manufacturing processes. The water content, air permeability and formation conditions of these fiber growing media that are required in plants growing habitat were discussed, and compared the fallout with rockwool (RW) growing media that is commonly used at present days. The results indicated that the polyethylene terephthalate fiber media could attain best formation characteristics among these fibers at the same bulk density range. Furthermore, the fiber media that were thermo-oxidative treated at 240-260 degrees C could obtained above 90% total porosity, 23-49% air capacity and 48-68% water availability, water contents raised from 1735-1094 to 2145-1156% under bulk densities of 0.03-0.09 g/cm(3), which conforms to the common plant growing habitat conditions. Its performance well surpasses the rockwool growing media. We also discovered that the thermo-oxidative treated polyethylene terephthalate (PET) fiber media could be easily broken down and become powdery by exerting pressure, thus greatly reduce its volume and effectively improve disposal processes that are difficult presently for the huge refuse create by rockwool. (c) 2007 Elsevier B.V. All rights reserved.
    關聯: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING Volume: 457 Issue: 1-2 Pages: 127-131
    顯示於類別:[紡織工程學系] 期刊論文

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