Abstract:

Based on the proportion and process parameters of three brands of original ABS resin glue solution， the type， structure， quantity of active functional groups， viscosity， and molecular weight and distribution of rubbers were investigated comparatively. A type of domestic rubber suitable for the bulk polymerization of ABS was selected to replace the patent?designated rubber products used in the formula， and the experiment was carried out on a small?scale device equipped with four kettles in series and a horizontal plug flow for the bulk polymerization of ABS. By comparing the structure and properties of the designated rubber products and substitute rubber， the feasibility of selected substitute rubber was and evaluated. The performance of the corresponding ABS resin samples was also analyzed. The results indicated that there was little difference in performance between the domestic BR?A rubber and the designated 720AX rubber， and therefore the designated 720AX rubber could be replaced the domestic one. The content of 1，2?vinyl in the domestic rubber BR?B was lower and its molecular weight was larger compared to the designated one. It is necessary to optimize the performance of domestic rubber BR?B before replacing the designated rubber 565T.

Key words: acrylonitrile butadiene styrene polymer, mess method, rubber, replacement, analysis and evaluation