Through a new and ecofriendly chemical approach, using inexpensive waterglass solutions, a silica-based coating was promoted on hemp fabrics which allows, also, to obtain silica coated micro-hemp particles, with an average aspect ratio of 7.1, from rags. This green coating is able: (i) to act as a thermal shield, (ii) to tailor the surface with specific coupling agents for suitable polymer matrices. The study was performed with the aid of multiple investigation techniques: Fourier-Transform InfraRed Spectroscopy, FTIR, Scanning Electron Microscopy, SEM, X-Ray powder Diffraction, XRD. The fire behavior, that, owing to severe regulations (i.e., in aerospace engineering), often prevents composites applications, was also studied. Cone calorimetry and vertical burning tests showed a considerable improvement in terms of fire behavior in the case of silica coated fiber reinforced polymer composites.

Silica Coated Hemp Fabrics and Microfibers through a Green Ecofriendly Chemical Approach

Aurelio Bifulco
Primo
Writing – Review & Editing
;
Massimo Durante;Francesco Branda
Ultimo
Writing – Review & Editing
2018

Abstract

Through a new and ecofriendly chemical approach, using inexpensive waterglass solutions, a silica-based coating was promoted on hemp fabrics which allows, also, to obtain silica coated micro-hemp particles, with an average aspect ratio of 7.1, from rags. This green coating is able: (i) to act as a thermal shield, (ii) to tailor the surface with specific coupling agents for suitable polymer matrices. The study was performed with the aid of multiple investigation techniques: Fourier-Transform InfraRed Spectroscopy, FTIR, Scanning Electron Microscopy, SEM, X-Ray powder Diffraction, XRD. The fire behavior, that, owing to severe regulations (i.e., in aerospace engineering), often prevents composites applications, was also studied. Cone calorimetry and vertical burning tests showed a considerable improvement in terms of fire behavior in the case of silica coated fiber reinforced polymer composites.
978-88-94952-03-2
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/899115
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