传感技术学报
傳感技術學報
전감기술학보
Journal of Transduction Technology
2014年
8期
1022-1026
,共5页
复合材料%损耗因子%阻尼%低频%温度%混杂纤维
複閤材料%損耗因子%阻尼%低頻%溫度%混雜纖維
복합재료%손모인자%조니%저빈%온도%혼잡섬유
composites%loss factor%damping%low frequency%temperature%hybrid fiber
为了进一步探索纤维增强复合材料的阻尼性能，本文通过拉挤工艺制作了聚乙烯基纤维增强复合材料和环氧基纤维增强复合材料，通过动态力学分析仪研究了纤维增强复合的频率和温度阻尼性能。结果表明：增强纤维的直径对阻尼性能很重要。2种纤维复合材料阻尼损耗因子随着温度的升高而下降(-20℃~60℃)；随着频率的增加而增加(0.1 Hz~2 Hz)。碳纤维复合材料的阻尼性能优于玻璃纤维复合材料；聚乙烯基复合材料的阻尼性能优于环氧基复合材料的阻尼性能。
為瞭進一步探索纖維增彊複閤材料的阻尼性能，本文通過拉擠工藝製作瞭聚乙烯基纖維增彊複閤材料和環氧基纖維增彊複閤材料，通過動態力學分析儀研究瞭纖維增彊複閤的頻率和溫度阻尼性能。結果錶明：增彊纖維的直徑對阻尼性能很重要。2種纖維複閤材料阻尼損耗因子隨著溫度的升高而下降(-20℃~60℃)；隨著頻率的增加而增加(0.1 Hz~2 Hz)。碳纖維複閤材料的阻尼性能優于玻璃纖維複閤材料；聚乙烯基複閤材料的阻尼性能優于環氧基複閤材料的阻尼性能。
위료진일보탐색섬유증강복합재료적조니성능，본문통과랍제공예제작료취을희기섬유증강복합재료화배양기섬유증강복합재료，통과동태역학분석의연구료섬유증강복합적빈솔화온도조니성능。결과표명：증강섬유적직경대조니성능흔중요。2충섬유복합재료조니손모인자수착온도적승고이하강(-20℃~60℃)；수착빈솔적증가이증가(0.1 Hz~2 Hz)。탄섬유복합재료적조니성능우우파리섬유복합재료；취을희기복합재료적조니성능우우배양기복합재료적조니성능。
To further explore the low-frequency property of composite,Fiber reinforced vinyl ester composites and fi-ber reinforced epoxy composites were manufactured by the pultrusion and the temperature spectrum and frequency spectrum of loss factor were tested by the dynamic mechanical analysis ( DMA ) . The damping properties and damping mechanism of the composite were investigated at different temperatures and frequencies.The result indicates that the diameter of the fiber is crucial to the damping.The loss factor of the composites is increasing with the fre-quency from 0.1 Hz to 2 Hz and decreasing with temperature in the range from -20 ℃ to 60 ℃.The loss factor of the carbon fiber composite is higher than that of the glass fiber for the same matrix.The loss factor of the vinyl ester composite is higher than that of the epoxy composite for the same fiber.
