High performance fluorinated Bismaleimide-Triazine resin with excellent dielectric properties
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A series of high performance fluorinated bismaleimide-triazine (BT) resins were prepared from 2, 2′-Bis(4-cyanatophenyl) propane (CY-1), 2′-Bis[4-(4-maleimidephenoxy) phenyl] hexafluoropropane (6FBMP) and diallyl hexafluorobisphenol A (6FDABPA). The effect of the fluorinated groups on the curing behavior, thermal stability, mechanical and dielectric properties was studied. Dielectric constant of the fluorinated BT resin was 2.89–2.94 and the dielectric loss could reach 0.002–0.004 at 1 MHz, which were dramatically improved compared with the reported cyanate ester resins. The fluorinated BT resins also exhibited excellent thermal stability, with a high glass transition temperature above 220 °C and 5% weight loss thermal decomposition temperature (Td5) exceeding 400 °C. Meanwhile, the impact strength of the fluorinated BT resins could reach 20 kJ/m2 and the flexural strength was 120 MPa. Small dipole, low polarizability, high bond energy of the carbon-fluorine (C-F) bond and symmetrical hexafluoroisopropyl group were the reason for the enhanced properties. This work suggested that the fluorinated BT resins had great potential to be used as the matrix of the advanced structural and functional composites.
KeywordsBismaleimide-triazine Dielectric properties Fluorinated Mechanical properties
The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (No.51403218 & No.51473171 & No.21604090). The authors gratefully thanks the Young Elite Scientist Sponsorship Program by CAST (YESS) and the Youth Innovation Promotion Association of CAS (No. 2017047).
- 1.Zeng X, Yu S, Sun R (2013) Thermal behavior and dielectric property analysis of boron nitride-filled bismaleimide-triazine resin composites. J Appl Polym Sci 128(3):1353–1359Google Scholar
- 11.R-S TSAIW-JSA (2014) Studies on fluorine-containing bismaleimide resins part II: preparation and characteristics of reactive blends of fluorine-containing bismaleimide and epoxy. J Polym Mater 30(1):49–62Google Scholar
- 26.Guo Y, Han Y, Liu F, Zhou H, Chen F, Zhao T (2015) Fluorinated bismaleimide resin with good processability, high toughness, and outstanding dielectric properties. J Appl Polym Sci 132(46):42791Google Scholar
- 28.Ren Z, Cheng Y, Li Y, Xiao F Preparation and characterization of soluble bismaleimide-triazine resins based on asymmetric bismaleimide. J Appl Polym Sci 134(9):44519Google Scholar