Journal of Applied Polymer Science, Vol.109, No.3, 1484-1491, 2008
A comparative study of short nylon fiber-natural rubber composites prepared from dry rubber and latex masterbatch
A novel method for the preparation of short nylon fiber-natural rubber composites was developed in which short fibers chopped to approximately 6 mm were incorporated in the latex stage and processed into sheet form. By this method, mixing cycle time was reduced without compromising the fiber dispersion. Fiber breakage during mixing was reduced. The new composites when compounded with a dry bonding system based on hexamethylenetetramine, resorcinol and hydrated silica (HRH) showed improved modulus, tensile strength and abrasion resistance compared to conventional composites. Tear strength, resilience, and compression set were similar to the conventional composites. SEM analysis indicated better interaction between matrix and fibers in the case of latex master batch. (C) 2008 Wiley Periodicals, Inc.