TY  - JOUR
PY  - 2020//
TI  - Enhancement of the ballistic performance of aramid fabric with polyurethane and shear thickening fluid
JO  - Materials and design
A1  - Wang, Xingwei
A1  - Zhang, Jianbin
A1  - Bao, Luyao
A1  - Yang, Wufang
A1  - Zhou, Feng
A1  - Liu, Weimin
SP  - 109015
EP  - 109015
VL  - 196
IS  - 
N2  - Conventionally, the shear thickening fluid (STF) is used to improve the ballistic performance of aramid fabric because its shear thickening property increases the friction of inter-yarns. However, intuitively, enhancing the inter-yarn adhesion is an easier method. In this study, the adhesive polyurethane (PU) was utilized. The aramid fabrics impregnated with STF, the composite of STF and PU (STF-PU), and PU were compared in terms of the resistance to single yarn pull-out, the flexibility of fabric and the high-velocity impact test, respectively. Due to the robust adhesion of PU, comparing with STF/aramid fabric, a small amount of PU within STF-PU could strengthen the resistance of inter-yarn relative motion significantly and decrease mass loading intensively. Meantime, the flexibility had a little compromise due to unique heterogeneous structure in striking contrast with PU/aramid whose flexibility was impaired extremely. When it came to the high-velocity impact test, STF-PU/aramid showed outright advantages over STF/aramid and PU/aramid composite. It was also illuminated that excessively strong resistance to the yarn mobility was adverse for the high-velocity impact. Confidently, this work provides a new avenue in the development of flexible armor.<p />  <p>Language: en</p>
LA  - en
SN  - 0261-3069
UR  - http://dx.doi.org/10.1016/j.matdes.2020.109015
ID  - ref1
ER  -