A furan/epoxy blend applicable to composite manufacture was studied and corresponding basalt fiber-reinforced composites were prepared. The processability, mechanical properties, and reasons for the improved mechanical properties of this blend were investigated by rheology machine, mechanical testing machine, and scanning electron microscopy. With excellent processability, furan/epoxy was suitable for manufacturing composites. Furan/epoxy with the ratio of 5/5 showed the best properties, and the impact strength, flexural strength and flexural modulus were 15.43 kJ/m 2 , 102.81 MPa, and 3209.40 MPa, respectively. The river-like fracture surface of the furan/epoxy system was well consistent with the mechanical properties. The mechanical and anti-corrosive properties of basalt fiber-reinforced furan/epoxy composites were also studied. The mechanical properties of composites changed the same as those of furan/epoxy matrix did. Furan resin effectively improved the anti-acid but not anti-alkali property of composites, probably because furan could be cured in acidic condition and basalt fiber was resistant to acid and alkali.
The effects of different catalysts on the curing sequences of bisphenol A-aniline benzoxazine (BA-a)/N,N 0 -(2,2,4-trimethylhexane-1,6-diyl) bis (maleimide) (TBMI) blends were studied, and the influence of curing sequences on the phase structure and properties of products was discussed. In BA-a/TBMI/adipic acid, BA-a homopolymerized first, followed by the copolymerization between TBMI and ring-opened benzoxazine. This curing sequence led to strong copolymerization, which limited the movement of components and resulted in homogeneous structures of the final products. However, in BA-a/TBMI/imidazole, TBMI homopolymerized firstly, followed by the homopolymerization of BA-a. BA-a and TBMI hardly copolymerized, and the products presented phaseseparated (bi-continuous phase) structures finally. The degree of copolymerization and phase structures of products differed due to different curing sequences when different catalysts were used. Furthermore, the product with phase-separated structures had improved thermal property and toughness compared to those of the product with homogeneous structures. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43259.
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