Abstract
The mechanical properties of natural rubber - poly(vinyl chloride) blends have been studied. Tensile and tear strengths of the vulcanizates has been shown to increase with increasing proportions of PVC up to about 20 pphr. Abrasion loss and hardness decreases slightly with increasing concentration of PVC. Increased loading Of carbon black lowers the tensile and tear strength while increasing the abrasion loss and hardness values. This may be explained by the fact that PVC exists as a discontinuous rigid phase in the polymer compound. At normal loading of black (37 pphr) PVC improves processability and acts in the same way as reinforcing particulate fillers in elastomers. Compression set has been shown to decrease with increased PVC for a normally loaded compound.
Recommended Citation
Mutagahywa, B. (1993). DEVELOPMENT AND TESTING OF LOCALLY PRODUCED NATURAL RUBBER (NR) AND PVC BLENDS. Tanzania Journal of Engineering and Technology (TJET), 17(1), 1-11. https://doi.org/https://doi.org/10.52339/tjet.v17i1.142
Publisher Name
University of Dar es Salaam