CAJ | 학술논문

通过溶剂法，制备了双酚A型苯并噁嗪（BOZ-A）。采用预浸料模压成型工艺制备出聚乙烯醇缩醛纤维（PVAF）增强BOZ-A改性酚醛树脂（PF）模塑料。分别采用FT-IR、1H-NMR、DSC、SEM等对BOZ-A结构、BOZ-A/PF共混树脂固化行为和模塑料的力学性能、热性能进行了研究。结果表明，合成了预期结构的BOZ-A，噁嗪环成环率92.6%；BOZ-A/PF共混树脂工艺性良好，固化反应表观活化能为111.09 kJ/mol和73.73 kJ/mol；BOZ-A/PF质量比40/60时，模塑料性能最佳：收缩率、吸水性、冲击强度和弯曲强度分别为0.19%、0.187%、36.93 kJ/m 、156.0 MPa，但其马丁耐热温度较改性前略有下降，为149.7℃。
통과용제법，제비료쌍분A형분병오진（BOZ-A）。채용예침료모압성형공예제비출취을희순축철섬유（PVAF）증강BOZ-A개성분철수지（PF）모소료。분별채용FT-IR、1H-NMR、DSC、SEM등대BOZ-A결구、BOZ-A/PF공혼수지고화행위화모소료적역학성능、열성능진행료연구。결과표명，합성료예기결구적BOZ-A，오진배성배솔92.6%；BOZ-A/PF공혼수지공예성량호，고화반응표관활화능위111.09 kJ/mol화73.73 kJ/mol；BOZ-A/PF질량비40/60시，모소료성능최가：수축솔、흡수성、충격강도화만곡강도분별위0.19%、0.187%、36.93 kJ/m 、156.0 MPa，단기마정내열온도교개성전략유하강，위149.7℃。
A benzoxazine of bisphenol A(BOZ-A) was successfully synthesized by the solvent method, the preparation of polyvinyl acetal fiber (PVAF) reinforce phenolic resin was modified with BOZ-A by the mould pressing craft of presoak material. The structure of BOZ-A was analyzed by FT-IR and H-NMR, the curing properties of BOZ-A/PF blends resin system, mechanics performance and thermal performance of the phenolic molding compound (PMC) was studied by DSC and SEM. The result revealed that the expected structure BOZ-A was successfully synthesized by the ring formation rate of 92.6%. The curing reaction apparent activation energy of BOZ-A/PF blends was 111.09 kJ mol and 73.73 kJ/mol. When the mass ratio was 4:6, the PMC showed the best performance: the shrinkage rate was 0.19%; the water absorption was 0.187%; the impact strength was 36.93 kJ/m ; Flexural strength was 156.0 MPa. Compared with unmodified phenolic resin, the Martin heat-resistance temperature of PMC was reduced to 149.7℃.