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以聚酰胺651及自制的M6640改性脂环胺为固化剂分别与环氧树脂E-51配制成管式陶瓷膜表面封端用胶粘剂,通过示差扫描分析法(DSC)、胶粘剂力学性能及腐蚀液的化学需氧量(COD)测试,考察了环氧固化剂种类、M6640改性脂环胺与环氧树脂E-51的质量比、固化条件对环氧胶粘剂的力学性能及耐碱性等的影响。结果表明,m(M6640改性脂环胺):m(环氧E-51)=50:100,固化条件25℃/24 h+80℃/4 h时,胶的剪切强度17.49 MPa、拉伸强度78.72 MPa、压缩强度105.32 MPa、弯曲强度120.58 MPa、硬度90.5 HD,Tg65.3℃,耐碱腐蚀,可满足陶瓷膜端面胶的应用要求。
Polyamide 651 and homemade M6640 modified alicyclic amine as curing agent were respectively formulated with epoxy resin E-51 to form tube-type ceramic membrane surface sealing adhesive. The properties of the adhesive were characterized by differential scanning calorimetry (DSC), mechanical properties of adhesive and corrosion Liquid chemical oxygen demand (COD) test, investigated the type of epoxy curing agent, M6640 modified alicyclic amine and epoxy resin E-51 mass ratio, curing conditions on the mechanical properties of epoxy adhesive and alkali resistance Impact. The results showed that the shear strength of m (M6640 modified alicyclic amine): m (epoxy E-51) = 50: 100 and the curing condition of 25 ℃ / 24 h + 80 ℃ / 4 h were 17.49 MPa The tensile strength is 78.72 MPa, the compressive strength is 105.32 MPa, the flexural strength is 120.58 MPa, the hardness is 90.5 HD, the Tg is 65.3 ℃, and the alkali corrosion resistance can meet the application requirements of the ceramic film.