| 摘要 |
<p>A highly durable, high whiteness elastomer seal material molded from a composition comprising a perfluoroelastomer and a white pigment and having a surface with a whiteness of at least 90 as expressed by a W (Lab) color expression system under the conditions of a 2° field of view and a C-light source; and a high productive process for manufacturing a seal material having a surface with a whiteness greater than 75 as expressed by a W (Lab) color expression system under the conditions of a 2° field of view and a C-light source, wherein the process comprises molding a seal material from a composition comprising a perfluoroelastomer and a white pigment, and dipping the molded material in aqueous hydrogen peroxide solution, irradiating the molded material with ultraviolet light, or exposing the molded material to ozone.</p> |
