UHMWPE/Nomex包覆紗製備及物性分析

The Preparation and Physical Analysis of UHMWPE/Nomex Wraps Yarn

10.6989/JN.201112.0013

周文立(Wen-Li Chou)；許耀基(Yao-Chi Shu)

UHMWPE/Nomex包覆紗 ； 包繞撚度 ； 支數 ； U%回潮率 ； UHMWPE/Nomex wrap yarn ； tenacity ； yarn count ； twist

南亞學報

31期（2011 / 12 / 01）

13 - 30

繁體中文

UHMWPE/Nomex包覆紗是利用中空錠子撚線機之技術所包繞而成。其中芯絲是採用美國Allied Signal公司所生產之超高分子量聚乙烯（UHMWPE：Ultra-high-molecular-weight polyethylene）產品Spectra 1000（375D/120f），而鞘紗則使用美國杜邦公司所生產之芳香族聚醯胺Nomex®100%短纖紗。本實驗製備UHMWPE/Nomex包覆紗所選擇之參數是Nomex®100%短纖紗支數及包繞撚度，Nomex®100%短纖紗支數分別為30's、40's、60's，而包繞撚度則選擇600TPM~1000TPM。包覆紗之物性則分別探討抗張強力、抗張伸度、比強力、丹尼數、均勻度、含水率及回潮率等性質。經實驗結果顯示，UHMWPE/Nomex包覆紗之丹尼數、均勻度、含水率、回潮率均隨著包繞Nomex®100%短纖紗支數之降低及包繞撚度之增加而增加；抗張斷裂強力隨包繞Nomex®100%短纖紗支數及包繞撚度之降低而增加，但比強力隨包繞Nomex®100%短纖紗支數增加及包繞撚度之降低而增加；至於伸長量及伸度亦隨包繞Nomex支數降低及包繞撚度增加而增加，但最大值則出現在包繞Nomex支數40's及包繞撚度900TPM。

UHMWPE/Nomex wrapped yarn is composed of ultra-high molecular weight polyethylene (UHMWPE) filament and Nomex®100% staple yarn. UHMWPE filament which adopts US Allied Signal company product Spectra 1000 (435D/120) was treated as core filament and Nomex®100% which is made of US Du Pont Company was treated as sheath yarn were be fabricated to UHMWPE/Nomex wrapped yarn via hollow spindle machine. The 30's, 40's, 60's count of Nomex®100% staple yarn and the 600, 700, 800, 900 and 1000TPM (turn per meter) of twist degree were chosen as experiment's parameters. The relationship between tensile strength, tensile elongation, tenacity, denier, U%, water moisture content and regain humidity (RH%), vs. experiment's parameters of UHMWPE/Nomex wrapped yarn would be investigated in this study. The results of physical properties of UHMWPE/Nomex wrapped yarn was revealed that the denier, U%, water moisture content and regain of UHMWPE/Nomex wrapped yarn were increased with the decrease yarn count and increase twist degree of Nomex®100% staple yarn; The tensile strength of UHMWPE/Nomex wrapped yarn was increased with the both decrease yarn count and twist degree; The tenacity of UHMWPE/Nomex wraps yarn was increased with increase the yarn count and decreased with increase the twist degree. For the properties of tensile extension and tensile strain of UHMWPE/Nomex wraps yarn had also trended with the both parameters of yarn count and twist degree, and appeared the maximum value with 40's and 900TPM.