Stab resistance of composites with synthetic diamond filled polyimide resin matrix

In order to study the stab resistance and mechanism of resin materials, two types of synthetic diamond-filled polyimide resin-based composite resin sheets were prepared by hand-forming and hot-pressing, respectively, which were hand lay-up and uniform composites. The effects of particle size and filling volume fraction of synthetic diamond on puncture resistance of the resin sheet are discussed. The results showed that the anti-stab performance of the polyimide resin sheet are improved due to synthetic diamond fillings, and the composite structure make from such resin demonstrates the better stab resistance. It is found that as the number of synthetic diamonds meshes increased, leading to diameter decrease, the stab resistance of the composite decreases first followed by an increase. It is understood that the stab-proof mechanism is basically associated to the collision probability and the resin-based anti-blocking. From analyzing the stab resistance and the work done, the stab resistance of the resin sheet gradually decreases with the increase of the volume fraction of the artificial diamond filling, which is believed to be caused by embrittlement and destruction of the composite resin sheet. In particular, the resin has the optimal stab resistance when the particle diameter is 300 μm and the volume fraction is 10% in the sheet. Copyright No content may be reproduced or abridged without authorization.