Synthesis of EO/PO atactic copolyether and its application in tire cord spin-finishes
The synthesis of EO/PO atactic polyether for high-speed spinning finish is studied.The viscosity,surface tension and friction coefficient of EO/PO atactic polyether varied with the different of its molecular weight,which is appropriate in 3 000 around.The molecular weight distributing of polyether is related tight with the stability of spin-finishes,and the polyether with little distributing will make the better stability of the finishes.The value of EO/PO will affect the viscosity,solidifying point and dissolution of the polyether,which is appropriate in 3 around.Moreover,PA6 tire cord spin-finishes are prepared using homemade polyether as main smoothness additive,whose effect of industry application test is satisfactory.