... end product smooth exquisite. (2) The transparency of film which adds SJ—301 are good, its ... adding ordinary master batch.(3) After adding SJ—301, the mechanics performance like angle tearing ... tensile of membrane when add 10% proportion SJ-301. (2) When use in PP, PE injection ... molding, tubing and wiredrawing, it has good toughening and reinforcing function. (3) Add SJ ...