天然橡胶是一种重要的工业物质。近几十年来人工合成橡胶虽取得了较大进展,但其在通用性能及某些性能仍赶不上天然橡胶。目前世界上天然橡胶的90％以上来自巴西三叶橡胶树(Heuea brasilliensis),我国也不例外。在我国天然橡胶生产中,海南占全国产量的2/3,其余1/3分布于大陆南缘的几个植胶区内。橡胶树是一种热带植物,既怕冬季低温,又怕强 Natural rubber is an important industrial substance. In recent decades, synthetic rubber has made great progress, but its general performance and some properties still can not keep up with natural rubber. At present, more than 90% of the natural rubber in the world comes from Heuea brasilliensis, and our country is no exception. In China’s natural rubber production, Hainan accounted for 2/3 of the national output, and the remaining 1/3 distribution in the southern margin of the mainland a few plasticized zone. Rubber tree is a tropical plant, both afraid of the cold in winter, afraid of strong