The present invention provides a perfluoroelastomer seal material in which adhesive strength, contamination, corrosion and color change of a contacted surface with a seal material are improved, and an amount of an uncrosslinked polymer component is at most 1 % by weight, measured under specific conditions, and a process for preparing the same. The present invention relates to a perfluoroelastomer seal material, wherein a rate of weight decrease is at most 1 % by weight when the seal material is immersed into perfluoro(tri-n-butyl) amine at 60°C for 70 hours and is dried at 90°C for 5 hours, 125°C for 5 hours and 200°C for 10 hours after taken out of the emersion. And, the present invention also relates to a process for preparing a perfluoroelastomer seal material comprising a step of treating with a solvent having at least 50 % of a swelling rate based on said molded article, when said molded article is immersed at 60°C for 70 hours.
本发明提供了一种
全氟弹性体密封材料,在该密封材料中,与密封材料接触面的粘合强度、污染、腐蚀和颜色变化都得到了改善,而且在特定条件下测得的未交联聚合物成分的量最多为 1%(按重量计),本发明还提供了制备该密封材料的工艺。本发明涉及一种
全氟弹性体密封材料,当密封材料在 60°C 的温度下浸入
全氟(三正丁基)胺中 70 小时,取出后在 90°C 下干燥 5 小时、125°C 下干燥 5 小时和 200°C 下干燥 10 小时时,重量减少率最多为 1%(按重量计)。此外,本发明还涉及一种制备
全氟弹性体密封材料的工艺,该工艺包括以下步骤:当所述模制件在 60°C 下浸泡 70 小时时,用溶胀率至少为所述模制件的 50%的溶剂进行处理。