新型可粘聚四氟乙烯大板的研制

新型可粘聚四氟乙烯大板的研制 RESEARCH ON THE PREPARATION OF NEW TYPE ADHESIVE PTFE PLATE IN LARGE SIZE 陈怀九 Chen Huaijiu and Xiao Xianzhi first-author 肖贤芝 将聚四氟乙烯（PTFE）板浸入含有PTFE、SiO 2 、表面活性剂及稳定剂的悬浮液中,取出干燥,烧结而制成新型可粘板,用国产普通的环氧树脂粘结,钢—PTFE—钢的剪切强度为50～80公斤/cm 2 ,达到了国内外同类产品水平。本法设备简易,原料易得,成本低廉,只要烧结炉足够大或操作连续化,就可以满足制造大型板材的要求。 The PTFE sheet was immersed in an aqueous dispersicn containing PTFE resin, SiO 2 , surface active agents and a stabilizing agent, taken cut, dried and sintered to give a new type adhesive sheet. The shear strength with native ordinary epoxy resin adhesive in steel-PTFE-steel bending was 50-80 Kq/cm 2 , and attained the strength level of similar products produced at home and abroad. The method described in this paper was simple. The raw materials required were easy to take and the cost price was low. If the size of sintering furnace was so large or it was so made to operate in continuous manner that it is possible to satisfy the requirements to prepare an adhesive sheet in large size. 1986-01-01 2021-04-01 1