Outstanding characteristic is impact resistance value because of the little crystal size, particle almost is spherical since the mill processing, the surface is dry and clean, and easy to bond.
突出的特点是晶体尺寸小耐冲击，因用自磨机加工破碎，颗粒多为球状颗粒，表面干洁，易于结合剂结合。
2
The results showed that PUF not only had the outstanding mechanical properties but also had good interfacial bond property.