Abstract:

A series of PF/TWRP-AO 2246 damping absorption composites were prepared from textile wasted rubber powder (TWRP), hindered phenol 2,2’-methylene-bis-(6-tert-butyl-methyl-phenol) (AO2246) and single hollow nylon fiber(NF). The microstructure and properties of composites were investigated by dynamic thermal analysis thermal analysis, scanning electron microscope, SW230 absorption machine and YG065 electronic fabric electronic strength machine. The results show that polyamide fiber acted as an induced nuclear for the crystallizations of AO 2246, which were coated on the surface of fiber. The crystallization-fiber network structures are formed in composites, which forms "the air flow". This improves the absorption properties of composites effectively. The fiber hinders the degree of freedom of macromolecular chain effectively, which reduces the damping loss. Crystallization-fiber network structures acts as framework for reinforcing. With the content of fiber increasing from 10% to 50%, its breaking stress ranges from 62.8 MPa to 128.8 MPa and its breaking strain ranges from 363.6% to 19%.

Key words: textile industry wasted rubber powder, 2,2’-methylene-bis-(6-tert-butyl-methyl-phenol) , polyamide hollow fiber, crystal-fiber network sructure, sound absorption performance.