Nitrile functionalized benzoxazine/bismaleimide blends and their glass cloth reinforced laminates
Article first published online: 24 JUN 2014
Copyright © 2014 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
How to Cite
2014), Nitrile functionalized benzoxazine/bismaleimide blends and their glass cloth reinforced laminates. J. Appl. Polym. Sci., 41072. doi: 10.1002/app.41072, , , and (
- Article first published online: 24 JUN 2014
- Manuscript Accepted: 22 MAY 2014
- Manuscript Received: 17 APR 2014
- National Natural Science Foundation. Grant Number: 21074067
- mechanical properties;
- thermal properties
A novel high-performance resin blend composed of nitrile functionalized benzoxazine (CNBZ) and bismaleimide (4,4′-bismaleimidodiphenyl methane) (BMI) was prepared via solvent method. Its curing behaviors, thermal properties, and mechanical properties were studied by differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR), dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and universal testing machine, respectively. The results showed that the addition reaction between phenolic hydroxyl group and the double bond occurred except for the homopolymerization of CNBZ and BMI. When BMI content was more than 40%, the cured CNBZ/BMI blends exhibited higher glass transition temperatures (Tgs) than CNBZ and BMI homopolymers, which reached up to 334°C. Meanwhile, when BMI content was 40%, the tensile strength, flexural strength, and shearing strength reached up to 69, 235, and 12.9 MPa, respectively, which exhibited the comparable mechanical properties with BT resin. Furthermore, the glass cloth (GF) reinforced laminates based on these blends were prepared. The results showed that when BMI content was 40%, their tensile strength, flexural strength, and impact strength reached up to 334 MPa, 593 MPa, and 145 KJ m−2, respectively. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41072.