Descrizione

About The Book: This book contains of "Crude Rubber and Compounding Ingredients: A Textbook of Rubber Manufacture" highlights the significant changes that have taken place in rubber production and manufacturing processes over. These changes include the emergence of cultivated rubber the use of accelerators and the shift from open dry heat to pressure cure. Rubber is a product of various trees, vines, and shrubs that grow mainly in the torrid zone, with South America being the largest producer of high-quality Para rubber. Other rubber-producing regions include Central America, India, and Africa. While the gum that comes from these regions is all rubber, it differs in its chemical composition due to various methods of gathering and coagulation. African rubber, found on both the east and west coasts and in the great basin of the Congo river, is inferior to South American rubber but is improving through better processes in gathering and curing.