TY - JOUR
T1 - Block copolymer functionalized quartz fibers/cyanate ester wave-transparent laminated composites
AU - Zhang, Jiani
AU - Liu, Zheng
AU - Han, Muyi
AU - Zhang, Junliang
AU - Tang, Yusheng
AU - Gu, Junwei
N1 - Publisher Copyright:
© 2022
PY - 2023/3/10
Y1 - 2023/3/10
N2 - A block copolymer of PDMS-b-PGMA is synthesized by polymerizing glycidyl methacrylate (GMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization applying a polydimethylsiloxane (PDMS) based macro-RAFT agent, which is then performed to functionalize the quartz fibers (QFs@PDMS-b-PGMA) via a simple coating process. Finally, the QFs@PDMS-b-PGMA/bisphenol A dicyanate ester (BADCy) wave-transparent laminated composites are fabricated by high-temperature molding. Nuclear magnetic resonance (NMR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and size exclusion chromatography (SEC) demonstrate the successful preparation of PDMS-b-PGMA with expected structure. When the molar mass and coating amount of PDMS-b-PGMA are respectively 8100 g/mol and 2.0 wt.%, QFs@PDMS-b-PGMA/BADCy wave-transparent laminated composites present optimal mechanical properties and wave-transparent performance. The interlaminar shear strength (ILSS) and flexural strength are 53.6 and 552.0 MPa, respectively. Meanwhile, the dielectric constant and dielectric loss values are 2.61 and 0.0028 at 1 MHz (wave transmittance of 93.8%), showing good stability at different frequencies (102–106 Hz and 8.4–12.4 GHz) and temperatures (25–250 °C).
AB - A block copolymer of PDMS-b-PGMA is synthesized by polymerizing glycidyl methacrylate (GMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization applying a polydimethylsiloxane (PDMS) based macro-RAFT agent, which is then performed to functionalize the quartz fibers (QFs@PDMS-b-PGMA) via a simple coating process. Finally, the QFs@PDMS-b-PGMA/bisphenol A dicyanate ester (BADCy) wave-transparent laminated composites are fabricated by high-temperature molding. Nuclear magnetic resonance (NMR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and size exclusion chromatography (SEC) demonstrate the successful preparation of PDMS-b-PGMA with expected structure. When the molar mass and coating amount of PDMS-b-PGMA are respectively 8100 g/mol and 2.0 wt.%, QFs@PDMS-b-PGMA/BADCy wave-transparent laminated composites present optimal mechanical properties and wave-transparent performance. The interlaminar shear strength (ILSS) and flexural strength are 53.6 and 552.0 MPa, respectively. Meanwhile, the dielectric constant and dielectric loss values are 2.61 and 0.0028 at 1 MHz (wave transmittance of 93.8%), showing good stability at different frequencies (102–106 Hz and 8.4–12.4 GHz) and temperatures (25–250 °C).
KW - Bisphenol A dicyanate ester (BADCy) resins
KW - Block copolymer
KW - Quartz fibers (QFs)
KW - Wave-transparent laminated composites
UR - http://www.scopus.com/inward/record.url?scp=85140338036&partnerID=8YFLogxK
U2 - 10.1016/j.jmst.2022.09.005
DO - 10.1016/j.jmst.2022.09.005
M3 - 文章
AN - SCOPUS:85140338036
SN - 1005-0302
VL - 139
SP - 189
EP - 197
JO - Journal of Materials Science and Technology
JF - Journal of Materials Science and Technology
ER -