Natural rubber

Natural rubber
Natural rubber (NR) is a natural high molecular compound with cis-1,4-polyisoprene as the main component. 91% ~ 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene), and the rest are non rubber substances such as protein, fatty acid, ash and sugar. Natural rubber is the most widely used general rubber. Generally, the natural rubber we call refers to the elastic solid made of natural latex collected from Brazilian rubber trees through solidification, drying and other processing procedures. Natural rubber is a kind of natural polymer compound with cis-1,4-polyisoprene as the main component. Its rubber hydrocarbon (cis-1,4-polyisoprene) content is more than 90%, and it also contains a small amount of protein, fatty acid, sugar and ash. [1] Long before Columbus discovered the American continent in 1492, local residents in central and South America began to use it.

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