Fluororubber (fluororubber) refers to synthetic polymer elastomers containing fluorine atoms on carbon atoms in the main or side chains. The introduction of fluorine atom gives rubber excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance. It has been widely used in aerospace, aviation, automobile, petroleum and household appliances, and is an irreplaceable key material in the cutting-edge industry of national defense. Since 1943, the development of polyolefin fluorine rubber, nitroso fluorine rubber, tetrapropyl fluorine rubber, phosphoronitrile fluorine rubber and perfluoroether rubber and other varieties.