Natural rubber (NR) is a natural polymer compound with cis-1,4-polyisoprene as the main component, and 91% to 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene) Diene), and the rest are non-rubber substances such as protein, fatty acids, ash, and sugars. Natural rubber is the most widely used general rubber.
Generally speaking, the natural rubber refers to the natural solid latex collected from the Brazilian rubber tree, which is an elastic solid made by coagulation and drying. Natural rubber is a natural polymer compound with cis-1,4-polyisoprene as its main component. Its rubber hydrocarbon (cis-1,4-polyisoprene) content is more than 90%, and it also contains a small amount of protein, fatty acids, sugar and ash.
In 1492, long before Columbus discovered the American continent, local residents of Central and South America had begun to use natural rubber. The rubber tree is native to the western part of Mara Yue in the Amazon River Basin of Brazil, and has now spread to more than 40 countries and regions in Asia, Africa, Oceania and Latin America. Countries with large planting areas include: Indonesia, Thailand, Malaysia, China, India, Vietnam, Nigeria, Brazil, Sri Lanka, Liberia, etc. my country's rubber planting area is mainly distributed in Hainan, Guangdong, Guangxi, Fujian, Yunnan, in addition to Taiwan can also be planted, of which Hainan is the main rubber planting area.