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The modified petroleum resin emulsion prepared from the C9petroleum resin was modified with maleic anhydride.The effects of maleic rosin and maleic anhydride addition level,the modification time and the alkali liquor on the properties of the emulsion were discussed.The results showed that the optimum process conditions covered:a maleic anhydride mass fraction of 1.5%,a maleic rosin mass fraction of 10%,a KOH mass fraction of 1%,a petroleum resin modification temperature of 200℃,a petroleum resin modification duration of 3 h,and a modified petroleum resin emulsion/wax emulsion mixing ratio of 1:1.The particle size of modified petroleum resin emulsion prepared under these conditions was equal to 104.166μm.
The modified petroleum resin emulsion prepared from the C9petroleum resin was modified with maleic anhydride. The effects of maleic rosin and maleic anhydride addition level, the modification time and the alkali liquor on the properties of the emulsion were discussed. The results showed that the optimum process a maleic anhydride mass fraction of 1.5%, a maleic rosin mass fraction of 10%, a KOH mass fraction of 1%, a petroleum resin modification temperature of 200 ° C, a petroleum resin modification duration of 3 h, and a modified petroleum resin emulsion / wax emulsion mixing ratio of 1: 1. The particle size of modified petroleum resin emulsion prepared under these conditions was equal to 104.166 μm.