Properties of composite needle materials with copolymethacrylate fiber

In order to solve the problem of oil pollution in the effluent,the copolymethacrylate fiber with absorbing function was prepared by suspension polymerization.The composite needle material was manufactured with the copolymethacrylate fiber which had been reinforced by polyester or polypropylene according to certain proportions by needling,The absorption rate,saturated oil absorption,and oil retaining rate of the composite needle material to kerosene,toluene and trichloroethylene were investigated.The influence of mixing ways on the absorption and oil retaining rate was studied.The reuse rate of the composite needle material was tested.The experiments demonstrated that the composite needle material with polypropylene layer exhibited better oil absorption rate,saturated oil absorption and oil retaining rate.The reuse rate experiment showed that its desorption amount in the absorption-desorption process was up to 90%,the absorption decreased slightly and balance was kept basically,thus meeting the requirement of reuse.