Crystallinity Index vs Thermal Stability

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Eko Sutrisno

Kenneth M Towe

, in this case the characterization of Cellulose nano fibers, I want to connecting with the peak and the crystallinity index.

The XRD analysis the crystallinity was increased from the raw material (pulp), but the result from TGA and DTG shown contrastly. Cellulose nanofibers less then the pulp about thermal stability.

any idea?

Michael Heine

Dear Eco,

maybe the following link will help:

https://pdfs.semanticscholar.org/c537/57d85c8f9d02bf4f073480f1bebe95e33f76.pdf

I am not sure if your special observation is described there.

Anyway, the cellulose thermal decomposition is complex and may involve many reactions. Obviously it is difficult to obtain precise kinetic parameters, however thermogravimetric analysis (TGA) has been used for long times to describe the situation.

With best regards

Michael

Tamer YA Fahmy

Information regarding crystallinity and reactivity of cellulose is discussed in the below mentioned articles. Happy new year.

https://www.researchgate.net/publication/312695203_On_fine_structure_of_cellulose_fibers?_sg=gMfP5CcIeMtf8Ui1o2D3FcfifSd-jir1GBvosgkmxo4A8We9XFQwCIfRFn1pzs1by7vyJTa0sbnrQ1xzC4F_-rJPLyqkQUE04RNdPfWO.p5kh-DbWyXujNy9tZupEqqlEFISvwAfpAQS7gxv5QQb6LoNuY77hWx1CJaLD2_Puf4MN-E19g5ZJ51ZcP27ceg

https://www.researchgate.net/publication/250425822_Fine_structure_and_reactivity_of_cellulose?_sg=5fWap_Bo_4zdD_fvqH_ik_rICR79B2MqsJkQJ-GpEk0-kWUql-OagXiQ1htoCGtqy5kKGHOkgcXg6Iwn4D16loYczMtz8vJCHsSulhkH.IexQikLYtmzkEXZKF7V0Hp1o92stM2-UVAXYD-fAlxbH24tcvwxDuP_sMPad0e1_V30QOrezdoD_Gdr1Cdoxsw

https://www.researchgate.net/publication/298681455_Reactivity_of_biological_cellulose_and_properties_of_some_of_its_derivatives?_sg=5fWap_Bo_4zdD_fvqH_ik_rICR79B2MqsJkQJ-GpEk0-kWUql-OagXiQ1htoCGtqy5kKGHOkgcXg6Iwn4D16loYczMtz8vJCHsSulhkH.IexQikLYtmzkEXZKF7V0Hp1o92stM2-UVAXYD-fAlxbH24tcvwxDuP_sMPad0e1_V30QOrezdoD_Gdr1Cdoxsw

https://www.researchgate.net/publication/294690836_On_the_properties_of_never-dried_and_nature-dried_cotton?_sg=5fWap_Bo_4zdD_fvqH_ik_rICR79B2MqsJkQJ-GpEk0-kWUql-OagXiQ1htoCGtqy5kKGHOkgcXg6Iwn4D16loYczMtz8vJCHsSulhkH.IexQikLYtmzkEXZKF7V0Hp1o92stM2-UVAXYD-fAlxbH24tcvwxDuP_sMPad0e1_V30QOrezdoD_Gdr1Cdoxsw

https://www.researchgate.net/publication/312702652_On_the_activation_of_cellulose_through_xanthation_II_Viscose_and_rayon_from_activated_cellulose?_sg=5fWap_Bo_4zdD_fvqH_ik_rICR79B2MqsJkQJ-GpEk0-kWUql-OagXiQ1htoCGtqy5kKGHOkgcXg6Iwn4D16loYczMtz8vJCHsSulhkH.IexQikLYtmzkEXZKF7V0Hp1o92stM2-UVAXYD-fAlxbH24tcvwxDuP_sMPad0e1_V30QOrezdoD_Gdr1Cdoxsw