Main rubber materials and processes are introduced

Natural rubber comes from the three-leaf rubber tree. When the skin of the rubber tree is cut, it will flow out of the milky SAP, called latex, latex by condensation, washing, molding, drying and other processing processes made of elastic solid matter to obtain natural rubber. Natural rubber (NR) is a kind of natural polymer compound with cis-1, 4-polyisoprene as the main component. 91% ~ 94% of its composition is rubber hydrocarbon (Cis-1, 4-polyisoprene), and the rest is non-rubber substances such as protein, fatty acid, ash and sugar. Natural rubber is the most widely used universal rubber.