Development of high-functional fibers and the application to clothing materials

高功能纤维的开发及其在服装材料中的应用

• 批准号: 08458007
• 负责人: MATSUO Masaru
• 金额: $ 4.99万
• 依托单位: Nara Women's University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08458007/
• 关键词: Ultra drawing; Gels; antimous tissue; biaxial stretching; rubber elasticity; cross-linking; ゲル; ポリエチレン; ポリビニルアルコール; 力学量; 急冷

High modulus and high strength fibers have been prepared by ultradrawing of polyethylene (PE), polypropylene (PP), and poly (vinylalcohol) (PVA) dry gel films. Gels were prepared by gelation/crystallization from dilute solutions and then solvents were evaporated under ambient conditions. Under SEM,the tissue within the film showed honeycomb-like structure similar to continuous tissue characterizing spinodal decomposition. The hole size of the honeycomb-like structure became smaller as the quenching temperature decreased. The gelation mechanism was discussed in terms of liquid-liquid phase separation due to thermodynamicic instability. In contrast, there has been no reports for simultaneous biaxial stretching of gels. The dry gel films of PE could be elognated up to 9 X 9 but the drastic improvement of Young's modulus could not be realized. Molecules were oriented parallel to the film surface. For PVA,the gels containing a lot of solvents were tough and the the mechanical property showed rubber elasticity in uniaxial and biaxial streching. This means that rubber elasticity is attributed to the formation of crystallites as cross-linking points. Incidentally, for the measurements, the evaporation of solvents was very few.

通过对聚乙烯(PE)、聚丙烯(PP)和聚乙烯醇(PVA)干凝胶薄膜的超拉伸，制备了高模高强纤维。从稀溶液中通过凝胶/结晶法制备凝胶，然后在常温下蒸发溶剂。在扫描电子显微镜下，薄膜内的组织呈蜂窝状结构，类似于连续组织，呈现调幅分解的特征。随着淬火温度的降低，蜂窝状组织的孔洞尺寸变小。从热力学不稳定性引起的液-液相分离的角度讨论了胶凝机理。相比之下，还没有关于凝胶同时双向拉伸的报道。PE干凝胶膜的吸光度可达9×9，但不能大幅度提高弹性模量值。分子取向平行于薄膜表面。对于PVA，含有大量溶剂的凝胶韧性较好，力学性能表现为单向拉伸和双向拉伸时的橡胶弹性。这意味着橡胶的弹性归因于作为交联点的微晶的形成。顺便说一句，对于测量，溶剂的挥发量很少。

项目成果

T.Ogita: "Morphalegy of PVA gels assing the greatert driability" Colloid & Polym.Sci. 274. 928-937 (1996)

T.Ogita：“PVA 凝胶的形态具有更大的干燥性”胶体

M.Matsuo and C.Xu: "Deformation mechanism of polyethylene spherulite estimated by crystal orientation distribution function and small angle light scattering under Hv Polarization condition." Polymer. 38. 4311-4318 (1997)

M.Matsuo 和 C.Xu：“通过 Hv 偏振条件下的晶体取向分布函数和小角光散射估计聚乙烯球晶的变形机制。”

T.Nakashima: "Development of high strength and high modules polyethylen-stark composite films and biodegradation of the composite films" J.Manomol.Scie. B35. 659-679 (1996)

T.Nakashima：“高强度和高模量聚乙烯斯塔克复合薄膜的开发以及复合薄膜的生物降解”J.Manom​​ol.Scie。

T.Nakashima: "Development of high strength and high modules PE-ST comporte film and bio degradation of the film" J.Macromol.Sci. B35. 659-679 (1996)

T.Nakashima：“高强度、高模量PE-ST复合薄膜的开发及其生物降解”J.Macromol.Sci。

M.Matsuo, M.Nakano, T.Ogita, M.Matsumoto: "Polarized light scattering studies on the orientational behavior of liquid crystalline rods immersed in shear flow under the action of an electric rectangular pulse." Polymer. 37. 5769-5779 (1996)

M.Matsuo、M.Nakano、T.Ogita、M.Matsumoto：“偏振光散射研究浸入剪切流中的液晶棒在电矩形脉冲作用下的取向行为。”