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采用液相环管反应器和气相流化床反应器组合工艺,通过提高反应器的压力和降低反应温度来提高反应器内的氢气溶解浓度,同时在透明成核剂加入量经济合理的前提下,稳定控制相关工艺参数,可以得到熔体质量流动速率大于30 g/(10 min)、雾度(1 mm)低于10%的高流动性、高透明度的无规共聚聚丙烯。
The liquid phase loop reactor and the gas-phase fluidized bed reactor combined process are adopted to increase the concentration of dissolved hydrogen in the reactor by increasing the pressure of the reactor and lowering the reaction temperature. Under the condition that the amount of the transparent nucleating agent is economically reasonable , Stable control of the relevant process parameters can be obtained high-mobility, high transparency random copolymer polypropylene melt flow rate greater than 30 g / (10 min), haze (1 mm) less than 10%.