合成纖維製程之磨擦係數降低及磨耗性能提昇之研究

The study of Reduction of Friction Coefficients Improvement of anti-wear characterics for Synthetic Fibers

賴秀菱(Hsiu-Ling Lai)

指導教授 ： 王世明

中原大學/工學院/機械工程研究所/碩士(2008年)

https://doi.org/10.6840/cycu200900523

摘要

功能性提升已經是目前合成纖維開發及生產的主流，其中以熔融紡絲，在原料顆粒餵入同時，一併加入耐高溫之功能性粒子，使合成纖維具備了預設的功能性，而後纖維再結晶，功能性粒子外顯在纖維表面上。在製程中纖維會因頻繁的接觸而產生磨耗問題，進而造成功能性粒子破損、剝落而減低甚至失去功能性。
本研究主要的目地是利用自製開發之聚乙烯奈米微粒添加於紡絲油劑中，並上油於纖維表面，可保護纖維在織造加工時不會因高速摩擦而發生表面受損並因而造成機能性下降的缺點。本研究發現，聚乙烯奈米粒子的尺寸及形狀是重要的實驗參數，因此，本文發展出一套低成本、高效率的聚乙烯奈米粒子製造方法來製造出一系列實驗所需之各種尺寸奈米粒子。
本研究可分為三個實驗階段：(1)市售粒子(SPRAY 105)的粒徑分篩，(2)聚乙烯奈米粒子的自製製程，(3)聚乙烯奈米粒子添加於油劑中的纖維摩擦力及磨耗性能測試。本研究發現油劑在加了聚乙烯奈米粒子之後，纖維的摩擦力及磨耗皆有降低的現象，這是因為纖維表面分佈著奈米粒子，使行徑中的面接觸成為點接觸的關係。

關鍵字

奈米粒子 ； 聚乙烯 ； 抗磨耗

並列摘要

In this study, a series of spin finishes were formulated by incorporating different sizes of polyethylene (PE) nano-particles. They were applied to fiber surfaces. The PE nano-particles on the fiber surface can cause a decreased friction-force between the high-speed sliding fiber and its encountered surface so that no impairment of fiber surface and no damage to the fiber functionality will occur. According to the results, it was found that both the size and shape of polyethylene nano-particles were critical parameters in this study. Thus, a low-cost and high-efficiency method which can make a series of PE nano-particles with various diameters was explored.
Three experiments were conducted in this study: (1) the size screening of commercial PE particles (SPRAY 105) to have different sizes of nano-particles; (2) manufacturing of PE nano-particles with the newly developed method; (3) test of the abrasion and yarn friction-force. The results have shown that the friction force can be reduced and the resistance of abrasion can be improved. This is because the contact-surface between the high-speed sliding fiber and its encountered surface was decreased due to the existence of point contact PE nano-particles.

並列關鍵字

polyethylene ； anti-wear ； nano-particles

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