Highly Hydrophobic Organosilane-Functionalized Cellulose: A 2Promising Filler for Thermoplastic Composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00349887" target="_blank" >RIV/68407700:21220/21:00349887 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/ma14082005" target="_blank" >https://doi.org/10.3390/ma14082005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma14082005" target="_blank" >10.3390/ma14082005</a>

Result language
angličtina
Original language name
Highly Hydrophobic Organosilane-Functionalized Cellulose: A 2Promising Filler for Thermoplastic Composites
Original language description
The aim of this work is to design and optimize the process of functionalization of cellulose 14fibers by organosilane functional groups using low-pressure microwave plasma discharge with hex-15amethyldisiloxane (HMDSO) precursor in order to prepare a compatible hydrophobic filler for com-16posites with nonpolar thermoplastic matrices. Particular attention was paid to the study of agglom-17eration of cellulose fibers in the mixture with polypropylene. In our contribution, the dependence 18of the surface wettability on used process gas and treatment time was investigated. Scanning elec-19tron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) analyses were applied to char-20acterize the surface morphology and chemical composition of the cellulose fibers. It was observed 21that the plasma treatment in oxygen process gas led to the functionalization of cellulose fibers by 22organosilane functional groups without degradation. In addition, the treated cellulose was highly 23hydrophobic with water contact angle up to 143°. The use of treated cellulose allowed to obtain a 24homogeneous mixture with polypropylene powder due to the significantly lower tendency of the 25functionalized cellulose fibers to agglomerate.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project
<a href="/en/project/FV40315" target="_blank" >FV40315: Composite materials for non-pressure technology (3D printers and rotary sintering)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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