A novel technique in the preparation of environmentally friendly cellulose nanofiber/silk fibroin fiber composite films with improved thermal and mechanical properties

2019 ◽  
Vol 234 ◽  
pp. 200-207 ◽  
Author(s):  
Chieko Narita ◽  
Yoko Okahisa ◽  
Kazushi Yamada
Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5828
Author(s):  
Ewa Olewnik-Kruszkowska ◽  
Weronika Brzozowska ◽  
Arkadiusz Adamczyk ◽  
Magdalena Gierszewska ◽  
Izabela Wojtczak ◽  
...  

Currently, scientists are still looking for new polymeric materials characterized by improved mechanical, thermal as well as dielectric properties. Moreover, it should be stressed that new composites should be environmentally friendly. For this reason, the aim of this work is to establish the influence of natural fillers in the form of diatomaceous biosilica (B) and talc (T) on the properties of dielectric elastomer (DE)-based composites. The dielectric elastomer-based materials have been tested taking into account their morphology, thermal and mechanical properties. Moreover, the dielectric constant of the obtained materials was evaluated. Obtained results revealed that the presence of both diatomaceous biosilica and talc significantly increases dielectric properties while having no significant effect on the mechanical properties of the obtained composites. It should be stressed that the performed analyses constitute a valuable source of knowledge on the effective modification of the thermal and dielectric properties of newly obtained materials.


Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 379
Author(s):  
Seonmin Lee ◽  
Jooheon Kim

Aggregated boron nitride (ABN) is advantageous for increasing the packing and thermal conductivity of the matrix in composite materials, but can deteriorate the mechanical properties by breaking during processing. In addition, there are few studies on the use of Ti3C2 MXene as thermally conductive fillers. Herein, the development of a novel composite film is described. It incorporates MXene and ABN into poly(vinyl alcohol) (PVA) to achieve a high thermal conductivity. Polysilazane (PSZ)-coated ABN formed a heat conduction path in the composite film, and MXene supported it to further improve the thermal conductivity. The prepared polymer composite film is shown to provide through-plane and in-plane thermal conductivities of 1.51 and 4.28 W/mK at total filler contents of 44 wt.%. The composite film is also shown to exhibit a tensile strength of 11.96 MPa, which is much greater than that without MXene. Thus, it demonstrates that incorporating MXene as a thermally conductive filler can enhance the thermal and mechanical properties of composite films.


2016 ◽  
Vol 73 (11) ◽  
pp. 2987-3005 ◽  
Author(s):  
Arya Anil ◽  
Jose E. Tomlal ◽  
Gejo George ◽  
Jomit T. Mathew ◽  
V. B. Manilal

RSC Advances ◽  
2014 ◽  
Vol 4 (27) ◽  
pp. 14304-14313 ◽  
Author(s):  
Lin Liu ◽  
Xiaogang Yang ◽  
Houyong Yu ◽  
Chao Ma ◽  
Juming Yao

Biomimic silk fibers with refined crystalline structure were produced via incorporating cellulose nanocrystals into silk fibroin matrix to mimic the β-sheet crystallites in natural silk. The fibers exhibit excellent thermal and mechanical properties, attributed to the strong hydrogen bonding interactions between cellulose nanocrystals and silk fibroin as well as cellulose nanocrystal-induced ordered structure.


2002 ◽  
Vol 86 (13) ◽  
pp. 3425-3429 ◽  
Author(s):  
Yasutomo Noishiki ◽  
Yoshiharu Nishiyama ◽  
Masahisa Wada ◽  
Shigenori Kuga ◽  
Jun Magoshi

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