نتایج جستجو برای: pulp refining

تعداد نتایج: 31406  

Journal: : 2022

The efficient use of papermaking potential secondary fiber by gentle refining recycled pulp is one the basic principles for recovered paper stock preparation. mild modes more important in case wetstrength than conventional waste paper. This due to fact that weakened hard conditions wet-strength repulping, particular, long repulping time, elevated temperature, alkali and oxidizers. study aims at...

Journal: :International journal of multidisciplinary research and studies 2022

Synthetic polymer and plastics which are currently used as barrier materials in the packaging industry neither renewable nor biodegradable, creating a serious threat to ecosystem. Nano cellulose is obtained by breaking down fibers into nano-scale dimensions has unique properties with potential dramatically impact many commercial markets including packaging. This research investigates refining o...

2014
Raili Pönni Tapani Vuorinen

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Raili Pönni Name of the doctoral dissertation Changes in accessibility of cellulose for kraft pulps measured by deuterium exchange Publisher School of Chemical Technology Unit Department of Forest Products Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 68/2014 Field of research Forest Products Che...

Journal: :Bioresources 2023

The filtration of air has attracted increasing attention during recent waves viral infection. This review considers published literature regarding the usage cellulose-based materials in devices, including face masks. Theoretical aspects are reviewed, leading to models that can be used predict relationship between structural features filter media and collection efficiency for different particle ...

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