Mechanical Properties of PBS Plastic Reinforced by Paper Using Waste Silk

Considering the efficient recycling of waste silk resource, the biodegradable composite consisting of PBS matrix and pure silk paper was prepared by hot compression molding. Beating treatment is adopted to modify silk fibroin and enhance the composite, and the corresponding mechanical properties and morphologies were studied detailedly. The results showed that beating treatment could realize the fibrillation of fibroin and improve the paper’s tensile strength, and proper beating treatment to fibroin could also improve the mechanical properties of silk paper reinforced PBS composite. The tensile, flexural and impact resistance properties of this green composite were improved remarkably with fiber loading increasing. Especially for impact resistance, it was improved 154% at 40 wt% fiber loading compared with PBS control.