Development of Hybrid Titania/Polybenzoxazine Composite for Enhance Thermomechanical, Flame Retardancy and Dielectric Properties

Shakila Parveen Asrafali, Thirukumaran Periyasamy, Chaitany Jayprakash Raorane, Ramkumar Vanaraj, Vinit Raj and Seong-Cheol Kim ()
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Shakila Parveen Asrafali: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Thirukumaran Periyasamy: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Chaitany Jayprakash Raorane: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Ramkumar Vanaraj: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Vinit Raj: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Seong-Cheol Kim: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea

Sustainability, 2023, vol. 15, issue 2, 1-13

Abstract: Polybenzoxazines (Pbzs) are a recently developed class of thermosetting polymeric materials possessing low surface free energy with nonfluorine or nonsilicon content. In the present study, a new type of Pbz-BN/TiO 2 composite was fabricated using benzoxazine monomer bis(6-phenyl diazenyl-3-phenoxy-3,4-dihydro-2H-1,3-benzoxazinyl) benzonitrile and inorganic TiO 2 fillers by a simple and inexpensive process. The thermal curing method was found to be effective for preparing superhydrophobic surfaces combining low surface energy and surface roughness. The presence of the benzonitrile group in the benzoxazine monomer paves the way for accelerating the curing of the benzoxazine monomer, as shown by the DSC analysis. The as-prepared Pbz/TiO 2 surfaces containing 5 wt% of TiO 2 generated a superhydrophobic surface exhibiting a static water contact angle (SWCA) of 146°. In addition, the effect of inorganic fillers on the thermal, mechanical and dielectric properties of the Pbz/TiO 2 composites was investigated in detail.

Keywords: polybenzoxazines; benzonitrile; TiO 2 fillers; composites; superhydrophobic (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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