Author/Authors :
Hao، نويسنده , , Xiangyang and Gai، نويسنده , , Guosheng and Lu، نويسنده , , Fangyun and Zhao، نويسنده , , Xijin and Zhang، نويسنده , , Yihe and Liu، نويسنده , , Ning Jiping and Yang Jisheng، نويسنده , , Yufen and Gui، نويسنده , , Dayong and Nan، نويسنده , , Ce-wen، نويسنده ,
Abstract :
PA66 reinforced with potassium titanate whisker (TKW) treated with silane coupling agent were prepared using a twin-screw extruder. The quasi-static and dynamic mechanical properties were investigated. Addition of 40 wt % TKW to PA66 improves all the investigated properties. The high-speed dynamic tests with TKW/PA66 were carried on split Hopkinson pressure bar (SHPB). The loading pulses in SHPB experiments were precisely controlled to ensure that the composite specimens deformed at a nearly constant strain rate under dynamically equilibrated stress during dynamic compression. The constitutive curves and equations at high strain rates have been obtained. TKW/PA66 composites show 20–100% increase on reference modulus and 20% increase on compression strength.
