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以聚(偏氟乙烯-co-六氟丙烯)、KOH(氢氧化钾)、MA(马来酸酐)、2,5-二甲基-2,5-二(叔丁基过氧基)己烷和TAIC(三烯丙基异氰脲酸酯)等为主要原料,合成了PTFE(聚四氟乙烯)材料/金属粘接用单组分含氟胶粘剂。探讨了PTFE材料的表面处理、KOH溶液处理以及接枝率等对该胶粘剂粘接性能的影响。研究结果表明:当PTFE表面经0.6 mol/L的萘-钠溶液处理10~15 min后,其表面对水的接触角相对最小,由原来的112.9°降至59.4°;当KOH溶液浓度为0.6 mol/L、处理时间约15 min和w(MA)=10%(相对于总原料质量而言)时,相应的含氟胶粘剂的粘接性能相对最好,其PTFE/不锈钢胶接件的T-剥离强度(4.72 kN/m)相对最大。
Poly (vinylidene fluoride-co-hexafluoropropylene), KOH (potassium hydroxide), MA (maleic anhydride), 2,5-dimethyl-2,5-di Alkane and TAIC (triallyl isocyanurate) as the main raw materials, PTFE (polytetrafluoroethylene) material / metal adhesive single-component fluorinated adhesive was synthesized. The effects of surface treatment of PTFE material, KOH solution treatment and grafting ratio on the adhesive properties of the adhesive were discussed. The results show that when the surface of PTFE is treated with 0.6 mol / L naphthalene-sodium solution for 10 ~ 15 min, the contact angle of water on PTFE surface is relatively minimum, from 112.9 ° to 59.4 °. When the concentration of KOH solution is 0.6 mol / L, treatment time of about 15 min and w (MA) = 10% (with respect to the total mass of the raw material), the corresponding fluorine-containing adhesive has the relatively good adhesive property and the PTFE / stainless steel adhesive T Peel strength (4.72 kN / m) is relatively maximum.