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.

高模量和高强度纤维已经通过超副纤维（PE），聚丙烯（PP）和聚（乙烯基醇）（PVA）干凝胶膜制备。通过稀释溶液中的凝胶/结晶制备凝胶，然后在环境条件下蒸发溶剂。在SEM下，膜中的组织显示出类似于蜂窝状的结构，类似于旋律分解的连续组织。随着淬灭温度降低，蜂窝状结构的孔尺寸变小。由于热力学不稳定性而导致的液态液相分离，讨论了凝胶化机制。相比之下，没有关于同时双轴拉伸凝胶的报道。 PE的干凝胶膜最多可以发现9 x 9，但无法实现Young模量的急剧改善。分子的定向与膜表面平行。对于PVA，含有大量溶剂的凝胶很坚固，机械性能在单轴和双轴侧面表现出橡胶弹性。这意味着橡胶弹性归因于形成结晶石作为交联点。顺便说一句，对于测量值，溶剂的蒸发很少。

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。”

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。”

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。

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。