| 摘要: | 在地工織物的發展上，力學性能一直是相當重要的關鍵。我們通常使用補強的方法來增加地工織物的強度，一方面可增強地工織物的功能，一方面可增加其用途。本研究中所使用的方法為長纖補強法，先以摩擦羅拉對長纖進行預開纖，將長纖鋪疊於不織布上，再併合不織布製成三明治夾層結構後進行針軋，即可製成長纖補強不織布。針對不織布基重、長纖束數、長纖含量、針軋密度、長纖開纖條件等因子，來探討這些因子對長纖補強不織布之初始模數所造成的影響，並進一步研究長纖在此結構中對整個系統所造成的補強行為。
In the development of geotextiles, the mechanical properties are quite important. We usually use the ways of reinforcement to increase the strength of geotextiles. It can increase the function of geotextiles. On the other hand, it can increase the uses of geotextile. In this study, we use the filament to reinforce the geotextiles. At first we lay the filament on the nonwoven fabrics after being pre-spread by the friction roller, then overlapped by the other nonwoven fabric to form sandwich structure before needle punching. Thus we can produce filament reinforced nonwoven. We discuss the effects of the initial modulus of the filament reinforced nonwoven with various factors that include unit weight of nonwoven fabrics, number of filament bundle, unit weight of filament, needle punching density and condition of filament being spread. We further study the behavior of the whole system being reinforced by filament in the structure. |
