Prepolymer based on MDI-50 for athletic tracks was prepared, the effects of catalyst, rubber granule and DOP on reaction process and product performance were also studied.
以MDI - 50为原料，制得复合塑胶跑道施工要求的预聚体，探讨催化剂、橡胶颗粒、增塑剂等对反应过程及制品性能的影响。
Presents the physio-chemical properties of the small granule sulfur tolerant shift catalyst QCS-04 and its commercial side-stream test.
介绍QCS 0 4小颗粒耐硫变换催化剂物化性能、工业侧线试验情况。
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