Ultradrawing and Ultimate Tenacity Properties of Ultra-high Molecular Weight Polyethylene Composite Fibers Filled with Nanosilica Particles with Varying Specific Surface Areas

奈米粒子比表面積對超高分子量聚乙烯/奈米二氧化矽複合纖維超高延伸與延伸後抗張性質之研究

葉正濤(J. T. Yeh) ； 王俊凱(C. K. Wang) ； 黃律凱(L. K. Huang) ； 蔡志宸(C. C. Tsai) ； 陳威宇(W. Y. Lai) ； 王權泉(C. C. Wang) ； 周俊穎(J.Y.Chou)

《華岡紡織期刊》 22卷5期 (2015/12) Pp. 229-236

摘要

Original and/or functionalized nanosilica particles (NSI^x, FNSI^x_(my)) with a quoted specific surface area of 100, 300 and 600 m^2/g, respectively, were used to investigate the influence of specific surface areas of nanosilica particles on ultradrawing and ultimate tensile properties of UHMWPE (F100), UHMWPE/nanosilica (F_(100)NSI^x_z) and UHMWPE/functionalized nanosilica (F_(100)FNSI^x _(my-z)) fibers. The specific surface areas of well dispersed FNSI^x _(my) nanofillers in F_(100)FNSI^x_(my-z) fibers can positively affect their ultradrawing, orientation, ultimate tensile properties and “micro-fibrils” morphologies. Excellent orientation and ultimate tensile properties of UHMWPE/nanofiller fibers can be prepared by ultradrawing the F_(100)FNSI^x _(my-z) as-prepared fibers with optimal contents of the best prepared FNSI^x _(my) particles well dispersing in the as-prepared fibers. The ultimate tensile strength (σ_f) value of the best prepared F_(100)FNSI^(600)_(m9-0.0375) drawn fiber reaches 7.6 GPa, which is about 1.7 and 2.3 times of those of the F_(100)FNSI^(100)_(m3-0.075) and the best prepared F_(100) drawn fibers without addition of any nanofiller. Specific surface area, morphological and Fourier transform infrared analyses of NSI^x, FNSI^x_(my) particles and/or investigations of thermal, orientation factor and ultimate tensile properties of as-prepared and/or drawn F_(100)FNSI^x_(my-z) fibers were performed to understand the above improved ultradrawing and ultimate tensile properties of the F_(100)FNSI^x _(my-z) as-prepared and/or drawn fibers.

關鍵字

Ultradrawing ； Nanosilica ； Ultrahigh Molecular Weight Polyethylene ； Specific Surface Areas