THE EFFECT OF CALCIUM CARBONATE SIZE AND …（碳酸钙的影响大小和u2026）.pdf

THE EFFECT OF CALCIUM CARBONATE SIZE AND LOADING LEVEL ON THE IMPACT PERFORMANCE OF RIGID PVC COMPOUNDS CONTAINING VARYING AMOUNTS OF ACRYLIC IMPACT MODIFIER William S. Bryant and Henry E. Wiebking Specialty Minerals, Inc. th 640 N 13 St. Easton, PA 18042 Abstract Experimental data has confirmed this relationship in our labs (12) and others (13) with PVC. This study demonstrates how the impact performance of a rigid polyvinyl chloride (PVC) Notched Izod Impact Strength compound can be affected by the particle size of the 20 phr calcium carbonate filled PVC calcium carbonate filler and its loading level. The test compounds contain 0 to 8phr of acrylic impact modifier ft-lbs/in J/m and fillers ranging in size from 3 to 0.07 microns. By 22 1100 taking all three variables into consideration one can, not 20 1000