Abstract:

In order to develop light and soft protective equipment, 8 kinds of combined woven structures were designed based on orthogonal structure unit and quasi orthogonal structure unit, the woves were made by UHMWPE fibers, and the high velocity impact performance was tested with ballistic penetration test, softness was tested with bending strength test. Factors affecting their bulletproof property and wearability were discussed. The results show that orthogonal structure unit exhibits better shear resistance and is for the impact face. Placing orthogonal structure unit close to the impact face is 35.7 % higher than quasi orthogonal structure unit of energy absorbed upon ballistic impact. It has also been found that quasi orthogonal structure unit gives better tensile resistance and leads to better softness, the value of its woven is only 52 % of combined woven.

Key words: ultrahigh molecular weight polyethylene, combined structure, composite, high velocity impact performance