将聚四氟乙烯(PTFE)超细粉和分散助剂sl-619加入脂类混合溶剂中充分分散,得到悬浊液;加入FEVE树脂和助剂,均匀混合后,就得到可在常温固化的不粘涂料。固化剂的添加量为涂料全量质量的2%。讨论了PTFE超细粉和氟硅烷的加入量对不粘性的影...将聚四氟乙烯(PTFE)超细粉和分散助剂sl-619加入脂类混合溶剂中充分分散,得到悬浊液;加入FEVE树脂和助剂,均匀混合后,就得到可在常温固化的不粘涂料。固化剂的添加量为涂料全量质量的2%。讨论了PTFE超细粉和氟硅烷的加入量对不粘性的影响,PTFE超细粉和氟硅烷的最佳含量分别为涂料全量质量的7.7%和14.3%。不粘涂料的疏水角可达到122(°),表面能为10.6 m J/m2,同时具有较好的附着力(为1级)和硬度(为4H),涂层具有耐腐蚀和耐化学性等性质。展开更多
Using triethylamine as a catalyst, two polyacrylates containing both acid anhydride and hydroxylic groups were prepared and could be cured with each other under ambient condition to give a coating with good performanc...Using triethylamine as a catalyst, two polyacrylates containing both acid anhydride and hydroxylic groups were prepared and could be cured with each other under ambient condition to give a coating with good performances. The crosslinking degree of the cured coating amounts to 77% at the catalyst mass fraction higher than 3 6%. With increasing the catalyst mass fraction from 3 6% to 5 4%, the hardness, flexibility and adhesion of the coating were all improved accordingly.展开更多
文摘将聚四氟乙烯(PTFE)超细粉和分散助剂sl-619加入脂类混合溶剂中充分分散,得到悬浊液;加入FEVE树脂和助剂,均匀混合后,就得到可在常温固化的不粘涂料。固化剂的添加量为涂料全量质量的2%。讨论了PTFE超细粉和氟硅烷的加入量对不粘性的影响,PTFE超细粉和氟硅烷的最佳含量分别为涂料全量质量的7.7%和14.3%。不粘涂料的疏水角可达到122(°),表面能为10.6 m J/m2,同时具有较好的附着力(为1级)和硬度(为4H),涂层具有耐腐蚀和耐化学性等性质。
文摘Using triethylamine as a catalyst, two polyacrylates containing both acid anhydride and hydroxylic groups were prepared and could be cured with each other under ambient condition to give a coating with good performances. The crosslinking degree of the cured coating amounts to 77% at the catalyst mass fraction higher than 3 6%. With increasing the catalyst mass fraction from 3 6% to 5 4%, the hardness, flexibility and adhesion of the coating were all improved accordingly.
