| Catalytic Pyrolyses of Rayon and the Effect on Activated Carbon Fiber |
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| 作者姓名： | 曾凡龙 潘鼎 |
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| 作者单位： | Carbon Fiber Division/State Key Lab. for Modification of Chemical Fiber andPolymer Materials，College of Material，Donghua University，Shanghai 200051，Dr，Carbon Fiber Division/State Key Lab. for Modification of Chemical Fiber andPolymer Materials，College of Material，Donghua University，Shanghai 200051 |
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| 基金项目： | ThisworkissupportedbyShanghaiScientificAssociation(KeyProject,No.02DZ11014) |
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| 摘 要： | Introduction Sinceactivatedcarbonfiber(ACF)appearedinUK, ithasbeenstudiedandproducedoncommercialscalefor tensofyears.Owingtoitsspecialporestructures, excellentabsorptionandextensiveuses,ACFhasattached muchimportanceovertheworld1,2].Butitsapplications arestillgreatlylimitedforitsveryexpensiveprice.RayonnowisthemajorrawmaterialofACFinindustryinthat theproductiontechniquefromrayoniseasyandreliable. Catalystsplayanimportantroleinrayon basedACF smanufacture.Theycanacceleratethedehydrati…
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Catalytic Pyrolyses of Rayon and the Effect on Activated Carbon Fiber |
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| ZENG Fan-long,PAN DingCarbon Fiber Division/State Key Lab. for Modification of Chemical Fiber andPolymer Materials,College of Material,Donghua University,Shanghai.Catalytic Pyrolyses of Rayon and the Effect on Activated Carbon Fiber[J].Journal of Donghua University,2004,21(2). |
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| Authors: | ZENG Fan-long PAN DingCarbon Fiber Division/State Key Lab for Modification of Chemical Fiber andPolymer Materials College of Material Donghua University Shanghai |
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| Institution: | Carbon Fiber Division/State Key Lab. for Modification of Chemical Fiber and Polymer Materials, College of Material, Donghua University, Shanghai 200051 |
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| Abstract: | The catalytic pyrolyses of rayon have been studied respectively by thermo-gravimetric analysis (TGA) when rayon was treated with phosphoric acid (PA), three ammonium phosphate salts and ammonium sulfate (AS). The air is favorable to the catalysis of dibasic ammonium phosphate (DAP), but not to those of ADP, PA, AP, and AS obviously. It is put forward that a peak's shape character can be described with the ratio of height to half-height-width (H/W/2) of the peak on a differential thermo-gravimetric (DTG) curve. A flat cracking peak, presenting a more moderate dehydration reaction, has a smaller ratio and could lead to higher carbonization and activation yields. The experimental results prove this view. According to expectation, the order of catalysis is: DAP≥ADP＞PA＞AP(>>)AS(>>) no catalyst. |
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| Keywords: | Catalytic pyrolysis Rayon-based activated carbon fiber TGA/DTG Ratio of height to half-height-width of peak (H/W /2) Yield Specific surface area |
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