改性氰酸酯基复合材料力学和透波性能研究

玻璃钢/复合材料, 2015, (6): 18-22.

改性氰酸酯基复合材料力学和透波性能研究

孙煜 ^1, , 徐任信 ^2, , 郑从伟 ^3, , 王钧 ^4, , 杨小利 ^5, , 周栋 ^6,

1.武汉理工大学材料科学与工程学院,武汉,430070

2.武汉理工大学材料科学与工程学院,武汉,430070

3.国家国防科技工业局协作配套中心,北京,100081

4.武汉理工大学材料科学与工程学院,武汉,430070

5.武汉理工大学材料科学与工程学院,武汉,430070

6.武汉理工大学材料科学与工程学院,武汉,430070

关键词：氰酸酯树脂 , 复合材料 , 耐热性 , 力学性能 , 透波性能

STUDY ON MECHANICAL AND WAVE-TRANSPARENT PROPERTIES OF MODIFIED CYANATE ESTER-BASED COMPOSITES

Keywords： cyanate ester , composites , heat resistance , mechanical properties , wave-transparent properties

利用低介电改性剂对氰酸酯树脂进行改性,制备了石英纤维/改性氰酸酯树脂复合材料,利用SEM表征了树脂及其复合材料的断面,并对改性氰酸酯树脂的耐热性能、力学性能、复合材料的力学性能及透波性能进行了研究.结果表明,改性氰酸酯树脂的玻璃化转变温度达到200℃以上,树脂拉伸破坏表现为韧性断裂,拉伸强度、弯曲强度和压缩强度分别在27MPa、69MPa和148MPa以上;改性氰酸酯树脂和纤维的界面结合良好,复合材料的拉伸强度、弯曲强度和压缩强度分别达到447MPa、461MPa和259MPa以上;在0.5～18GHz范围内,介电常数为3.1～3.3,4mm试样的S21小于-1.6dB.

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改性氰酸酯基复合材料力学和透波性能研究

STUDY ON MECHANICAL AND WAVE-TRANSPARENT PROPERTIES OF MODIFIED CYANATE ESTER-BASED COMPOSITES

参考文献