合股線浸漬加工複合橡膠之黏結力研究

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题名:	合股線浸漬加工複合橡膠之黏結力研究 The Study of Strip Strength of Ply Yarn with Rubber by Dipping Process
作者:	黃元駿
贡献者:	紡織產業研發碩士專班
关键词:	聚酯 Polyester 合股索 Ply yarn RFL 異氰酸化合物 Isocyanate 熱收縮 Hot shrinking 拉伸張力 Tensile 三角皮帶 V-belt
日期:	2013
上传时间:	2013-03-22 15:54:40 (UTC+8)
摘要:	高強力聚酯纖維常被使用在橡膠補強材料，但聚酯纖維在加熱過程中超過到Tg點時產生熱收縮，此時給予張力使纖維受外力影響而拉伸，分子鏈由折疊型態漸漸伸直，形成結晶區，分子鏈呈現順向，以平衡收縮過度。聚酯表面具疏水性，因此在界面處理上該如何使其與橡膠黏結為一重點。在本研究中，合股索在不同張力及溫度下，得知其適合延伸率及收縮率，在此條件下使用不同的預處理-異氰酸化合物加入不同界面活性劑，並浸漬RFL藥劑，在橡膠熱壓形成合股索時更具有較佳的黏結強力。藉以提升合股索對RFL藥劑的浸漬吸收，以纖維表面分析、熱收縮及延伸率、拉伸斷裂強力分析，證明經不同溫度、張力下，對不同合股索產生不同的收縮與拉張效應，對合股索與橡膠之尺寸安定性及層間黏結強力。由實驗結果顯示，合股索在使用張力1~2kgf內的張力能使熱收縮及受力延伸達到平衡，避免過度收縮及拉伸達到尺寸安定性，再經過預處理異氰酸化合物與界面活性劑EX313，再浸漬RFL藥劑，黏結效果達最佳條件，高強力聚酯合股索之膠層間黏結強力，新光合股索為26.0kgf，海利得合股索為23.0kgf，古利得合股索26.4 kgf，相較於未經界面活性劑預處理分別提升了4%、53.3%以及55.2%。 The high-strength polyester fiber are often used in rubber reinforcement materials, but there has a phenomenon when polyester heating over the glass transition temperature Tg, the molecular chain would change from folded to stretched, the molecular chain become crystallization and forward. At the same, it slide by force then stretch. In this situation if we give tension to let the fiber not to stretch or compress to much. Polyester fiber surface has hydrophobic so how to treatment the interface become a key point. In this study, we use different tension and temperature to get the best elongation and shrinkage of the ply yarns. Under those conditions to use different pre-dealing by adding different activating agent into isocyanate compounds, and dipping in RFL. Then after hot pressed rubber become ply yarns has better bonding strength. By increase the ply yarns absorb the RFL, and using fiber surface analysis, heat shrink, elongation, tensile fracture strength analysis to prove in different temperature, tensile has different effect. Ply yarns and rubber’s layer stripping strength. The experiment result show’s ply yarns under 1~2kgf tensile the compress and elongation could be balance. To avoid shrink and tensile to much, then after pre-dealing activator EX313 and isocyanate compound, and dipping in RFL, so has the best bonding strength. The high-strength polyester ply yarns layer stripping strength. SHINKONG’s ply yarns are 26.0kgf, HALEAD’s ply yarns are 23.0kgf, GUXIANDAO’s ply yarns 26.4kgf, compared with pretreatment without the activator enhance the 4%, 53.3% and 55.2%, respectively.
显示于类别:	[紡織工程學系] 博碩士論文

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