Abstract
Macromolecule modification activator was prepared using prepolymer of HTBN end capped by HDI biuret (N-75). Then the ABS/PA6 co-blend polymer was prepared by anionic polymerization with putting ABS resin into molten caprolactam monomer at the temperature of 160°C~180°C and the sodium hydroxide being used as activator. In the system of in-situ synthetic ABS modified nylon resin ,when the content of ABS is at 10% with rubber modifier as compatiblizing agent for ABS and nylon, the impact strength of matrices stepped up obviously, and the effect is better than that in the system of rubber modification. Along with added ABS, the tensile strength and bending strength fell that is lower than the tensile strength of pure nylon but apparently higher than that of the rubber modification system. The increase usage of compatiblizing agent improved the intensity and rupture elongation of matrices. It was indicated that ABS obstructed spherulitic growth and resulted in the reduction of nylon crystallinity.
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