2 results about "Formability" patented technology

A polyester film for forming which has excellent formability especially at a low temperature and low pressure, is excellent in solvent resistance and heat resistance, and is reduced in the burden to be imposed on the environment. The film comprises a biaxially oriented polyester film and is characterized by containing a copolyester and satisfying the following: (1) the stresses at 100% elongation in the machine direction and the transverse direction each is 10 to 1,000 MPa as measured at 25 DEG C and is 1 to 100 MPa as measured at 100 DEG C, (2) the storage moduli (E') in the machine direction and the transverse direction each is 10 to 1,000 MPa as measured at 100 DEG C and is 5 to 40 MPa as measured at 180 DEG C, and (3) the degree of heat distortion (initial load, 49 mN) in the machine direction as measured at 175 DEG C is from -3% to +3%.

The invention discloses a processing material for a stirring paddle of a chemical reaction kettle and a preparation method of the processing material, and relates to the technical field of chemical equipment materials. The processing material is prepared from the following raw materials in parts by weight: 15 to 20 parts of bisphenols A epoxy resin, 15 to 20 parts of saturated polyester resin, 10 to 15 parts of polyvinyl chloride resin, 5 to 10 parts of chlorinated polyvinyl chloride, 4 to 8 parts of cinerite, 3 to 6 parts of ceramic fine powder, 2 to 4 parts of ultrafine polytetrafluoroethylene powder, 2 to 4 parts of a flexibilizer, 1 to 2 parts of asbestos powder, 1 to 2 parts of sepiolite fiber, 1 to 2 parts of polyglycerol polyricinoleate, 0.5 to 1 part of bissulfonimide and 0.5 to 1 part of nano rubber powder. The processing material disclosed by the invention is high in processing formability, and can be made into stirring paddles of different sizes and structures; furthermore, the prepared stirring paddle is excellent in corrosion resistance, wear resistance and high-temperature resistance.