Amorphization Of Different Cellulose Samples By Ball Milling

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Amorphization of different cellulose samples by ball milling

Cellulose samples with initially different crystal structures (cellulose I and II) have been found to yield virtually the same amorphous X-ray scattering curves after extensive ball milling (Maier

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A multitechnique approach to assess the effect of ball

2012. 1. 4. As an effect of the cellulose amorphization, the amount of absorbed water of cellulose conditioned at 25 °C and 50% RH increases with increasing the milling time, varying from 7.3 wt% for untreated cellulose up to 11.6 wt% for the cellulose sample ball milled for 60 min.

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Amorphization by ball milling. A review ScienceDirect

1988. 10. 1. The pattern is taken after 7.5 h of milling in the planetary ball-mill of Weeber et al. (from [24]). 100 A.W. Weeber attd H. Bakker ,' Amorphization by ball milling Scherrer X-ray photograph of one of the balls after 10 hours of milling shows, except for some Bragg reflections of the elemental starting ma- terial, a pattern comparable to the diffraction pattern presented in fig. 9.

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A multitechnique approach to assess the effect of ball

Highlights We present the effect induced by a ball milling process on cellulose. The cellulose amorphization and the mean size reduction of the crystallite domains were quantified. Ball milled cellulose shows increased water absorption and reduced thermal stability. The disappearance of the fibrous structure is evidenced as a consequence of the ball milling process.

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Atmosphere effects of the amorphization reaction in NiZr by ball

K. Aoki, A. Memezawa,and T. Masumoto: Atmosphere effects of th e amorphization reaction in NiZr by bal l milling 2 MPa) atmospheres. Structures of th e samples before and after milling were identified by means of x-ray diffractometry (XRD) using CuKa radiation with a graphite monochromator.

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Modification of microcrystalline cellulose structural

2019. 6. 27. This study investigated the characteristics of cellulose Avicel PH-101 (NPA) and Avicel samples treated by either ball milling (BMA) or ionic liquid 1-ethyl-3-methylimidazolium acetate (ILA), which alter cellulose structural properties specifically and, consequently, affect the enzymatic hydrolysis of these materials differently.

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Effects of ball milling on the structure of cotton cellulose

2019. 1. 17. Cellulose is often described as a mixture of crystalline and amorphous material. A large part of the general understanding of the chemical, biochemical and physical properties of cellulosic materials is thought to depend on the consequences of the ratio of these components. For example, amorphous materials are said to be more reactive and have less tensile strength but comprehensive

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(PDF) Effects of Ball Milling Processes on the

PDF To investigate the effect of ball mill treatment of microcrystalline cellulose (MCC) on the rheological properties of MCC-polymer suspension, the Find, read and cite all the research

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Ball Milling an overview ScienceDirect Topics

The amorphization process during ball milling can be seen from the images of transmission electron microscopy (TEM) in Fig. 2a, which were taken from samples milled for different lengths of time. The TEM images show that the size and number of NiZr crystals decrease with increasing milling time, and a full amorphization is achieved after milling for 165 h.

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Ball Milling Pretreatment of Corn Stover for Enhancing the

Amorphization of different cellulose samples by ball milling. Cellulose Chemistry and Technology, 39 (3–4), 167–177. CAS Google Scholar

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