A matrix resin composition for fiber reinforced composite materials is described. The resin is thermosetting and achieves a glass transition temperature of at least 177° C. (Tg), obtained by curing at room temperature. The matrix resin will streamline composite fabrication processes by eliminating the need for heating during the cure process. The implications of this development are significant in terms of the ease of use and elimination of procedural steps. While the resin system was developed specifically for vacuum bagging, it is expected to be viable for other composite fabrication methods including resin transfer molding (RTM) and vacuum-assisted resin transfer molding (VARTM). The resin system is viable for use with carbon fiber reinforcements to fabricate laminates at least 0.20 inches thick. The resulting laminates have low porosity and mechanical properties equivalent to those prepared with common epoxy matrix resins.
本文介绍了一种用于纤维增强复合材料的基体
树脂组合物。这种
树脂是热固性的,室温固化时的
玻璃化转变温度至少为 177 摄氏度(Tg)。这种基体
树脂在固化过程中无需加热,从而简化了复合材料的制造工艺。就使用方便和省去程序步骤而言,这一研发成果意义重大。虽然该
树脂系统是专门为真空袋成型而开发的,但预计也可用于其他复合材料制造方法,包括
树脂传递模塑(RTM)和真空辅助
树脂传递模塑(VARTM)。该
树脂系统可与碳纤维加固材料一起用于制造厚度至少为 0.20 英寸的层压板。制成的层压板孔隙率低,机械性能与使用普通环氧基质
树脂制备的层压板相当。