氰酸酯树脂与高强高模型碳纤维的界面相容和性能匹配研究  

Research on interfacial compatibility and performance matching between cyanate ester resin and high-strength/high-modulus carbon fiber

作　　者：张月义[1] 唐小惠 高尚兵 李刚[1] 杨小平[1] ZHANG Yueyi;TANG Xiaohui;GAO Shangbing;LI Gang;YANG Xiaoping(State Key Laboratory of Organic and Inorganic Composite Materials,Beijing University of Chemical Technology,Beijing 100029,China;Changzhou Institute of Advanced Materials,Beijing University of Chemical Technology,Changzhou 213164,China)

机构地区：[1]北京化工大学有机无机复合材料全国重点实验室,北京100029 [2]北京化工大学常州先进材料研究院,常州213164

出　　处：《复合材料科学与工程》2025年第2期91-98,共8页Composites Science and Engineering

摘　　要：自行制备了两种增刚氰酸酯树脂(7180M和7180S),比较了与纯氰酸酯树脂的固化反应和力学性能,在氰酸酯树脂主链中引入高刚性链段和笼型倍半硅氧烷(POSS)提高了交联密度和刚性,其拉伸模量分别达到3 450 MPa(7180M)和3 400 MPa(7180S)。研究了CCM55J/氰酸酯单丝、束丝和单向复合材料的界面性能与界面相增强机理,与CCM55J/CE复合材料相比,CCM55J/7180M和CCM55J/7180S复合材料单丝界面剪切强度、束丝横向拉伸强度与层间剪切强度分别提高42.5%和30.6%、152.2%和91.6%、18.1%和15.5%,提出了拓宽的界面相厚度和平缓的界面相模量过渡容易传递外加载荷,提高复合材料界面性能的增强机理。考察了单向复合材料的耐湿热性能和空间性能,与CCM55J/CE复合材料相比,CCM55J/7180M和CCM55J/7180S复合材料360 h的沸水吸湿率降低至0.67%、0.83%;质量损失和可凝挥发物分别降低至0.11%、0.095%和0.04%、0.006%。树脂基体完善的交联网络结构导致复合材料界面相应力集中减少,有效阻止水分子进入,提高了复合材料的耐湿热和空间性能。Two kinds of stiffened cyanate ester resins(7180M and 7180S)were prepared,and the curing response and mechanical properties were compared with those of the pure resin.The stiffness and crosslinking density of 7180M and 7180S resin matrix were improved by introduction of stiff chain segments with high rigidity and polyhedral oligomeric silsesquioxane(POSS),and the tensile modulus reached 3450 MPa(7180M)and 3400 MPa(7180S),respectively.Compared to CCM55J/CE composites,the interfacial shear strength of CCM55J/7180M and CCM55J/7180S composites were increased by 42.5%and 30.6%,and the transverse tensile strength and interlaminar shear strength of fiber bundle were increased by 152.2%,91.6%and 18.1%,15.5%,respectively.The enhanced interfacial properties were attributed to the widened interphase thickness and the gentle interphase modulus transition layer.The boiling water moisture uptake of CCM55J/7180M and CCM55J/7180S composites at 360 h were reduced to 0.67%and 0.83%,respectively.Mass loss and condensable volatiles were reduced to 0.11%,0.095%and 0.04%,0.006%.These results indicated that with the increasing modulus of matrix,the perfect structure of cross-linking network of resin matrix effectively prevented the entrance of water molecules,and improved the anti-hydrothermal and spatial properties of CCM55J/7180M and CCM55J/7180S composites.

关 键 词：高强高模型碳纤维 氰酸酯树脂 界面相 界面性能 耐湿热性能 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]