Water-soluble polyethersulfone is generally non-toxic. Water-soluble polyethersulfone is a thermoplastic polymer material, its physical and mechanical properties, heat resistance, insulation properties are very good, especially in a long period of time at high temperatures and sharp temperature changes in the environment, can still ensure the stability of the performance. Water-soluble polyethersulfone can generally withstand 150 ℃ ~ 160 ℃ of hot water or steam, in addition to resisting acid and alkali erosion at high temperatures. And its health standard is in accordance with the requirements of the U.S. FDA and the Japanese Ministry of Health and Welfare, so it is generally non-toxic. It is also often used in electronics, electrical appliances, machinery, medical instruments such as surgical containers, hot water, automobiles and other fields.