PRODUCING THE HIGH-MODULUS AND HIGH STRENGTH FIBERS WITH VIBRATING ZONE-DRAWING METHOD

振动分区拉丝法生产高模量、高强纤维

• 批准号: 06453154
• 负责人: KUNUGI Toshio
• 金额: $ 4.61万
• 依托单位: YAMANASHI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06453154/
• 关键词: vibrating zone-drawing; vibrating hot-drawing; zone-drawing; poly (ethylene terephthalate); polypropylene; nylon; amorphous orientation factor; mechanical properties; ポリプロピレン繊維; 動的粘弾性; 顕微FT-IR; ポリエチレンレテフタレート繊維

In order to produce the fibers with high-modulus and high-strength, vibrating hot-drawing and vibrating zone-drawing methods were applied to poly (ethylene terephthalate), nylon, and polypropylene fibers. The effect of vibration frequency, amplitude, applied trnsion, and drawing temperature on the improving mechanical properties of fibers were studied. The results were described as follows :(1) The tensile modulus and storage modulus of vibrating hot-drawn fibers under various conditions increased with increasing applied tension and amplitude. Compared with the modulus of the fibers drawn under vibration and no vibration conditions, the tensile modulus and storage modulus of vibrating hot-drawn fibers were higher than those of hot-drawn fibers.(2) The birefringence, crystallites and amorphous orientation factors, crystallinity, and crystallites size were measured for the fibers drawn under vibration and no vibration conditions. The birefringence and amorphous orientation factor of the vibrating hot-drawn was higher than those of the hot-drawn fibers. The crystallinity and crystallites size of the vibrating hot-drawn fibers were smaller than those of the hot-drawn fibers. Although the crystallite orientation factors of the vibrating hot-drawn fibers were same as those the hot-drawn fibers, the amorphous orientation factors of the vibrating hot-drawn fibers were higher than those of the hot-drawn fibers. The vibration during drawing prevented the crystallization during drawing process, but promoted the orientation of amorphous chains.The vibrating hot-drawing and vibrating zone-drawing methods have been found to be effective improvement of the mechanical properties of the fibers, compared with hot-drawing and zone-drawing.

为了制备高模量、高强度纤维，对聚对苯二甲酸乙二酯、尼龙、聚丙烯纤维进行了振动热拉伸和振动区带拉伸。研究了振动频率、振幅、外加张力和拉伸温度对纤维力学性能改善的影响。结果表明：（1）在各种条件下，振动热牵伸纤维的拉伸模量和储能模量均随施加张力和振幅的增大而增大。与无振动和振动条件下拉伸纤维的模量相比，振动热拉伸纤维的拉伸模量和储能模量均高于热拉伸纤维。(2)测量了在振动和无振动条件下拉伸的纤维的双折射率、微晶和非晶取向因子、结晶度和微晶尺寸。振动热拉伸纤维的双折射率和非晶取向因子均高于热拉伸纤维。振动热拉伸纤维的结晶度和晶粒尺寸均小于热拉伸纤维。虽然振动热拉伸纤维的晶粒取向因子与热拉伸纤维相同，但振动热拉伸纤维的非晶取向因子高于热拉伸纤维。拉伸过程中的振动阻止了拉伸过程中的晶化，但促进了非晶链的取向，与热拉伸和区带拉伸相比，振动热拉伸和振动区带拉伸能有效地提高纤维的力学性能。

项目成果

S.NAKAZAWA,T.KUNUGI,and A.SUZUKI: "The relation between the curing conditions and mechanical properties of polyimide resin" Seikei-Kakou. Vol.6, No.5. 356 (1994)

S.NAKAZAWA、T.KUNUGI、A.SUZUKI：“聚酰亚胺树脂的固化条件与机械性能之间的关系”Seikei-Kakou。

T. Kunugi, A. Suzuki: "Preparation of High-Modulus Poly(ethylene telephthalate) Fibers by Vibrating-Hot-Drawing" Journal of Applied Polymer Science. (in press).

T. Kunugi、A. Suzuki：“通过振动热拉伸制备高模量聚对苯二甲酸乙二醇酯纤维”《应用聚合物科学杂志》。

鈴木 章泰: "ゾーン延伸ナイロン6繊維の繰り返し動的粘弾性測定" 成型加工. 6. 202-206 (1994)

Akiyasu Suzuki：“区域拉伸尼龙 6 纤维的重复动态粘弹性测量”模塑加工。 6. 202-206 (1994)

T.KUNUGI,A.SUZUKI: "Preparation of High-modulus poly (ethylene terephthalate) fibers by vibrating-hot-drawing" Journal of Applied Polymer Science. (in press).

T.KUNUGI，A.SUZUKI：“通过振动热拉伸制备高模量聚对苯二甲酸乙二醇酯纤维”应用聚合物科学杂志。

T. Kunugi, H. Okuzaki: "Electrical and Mechanical Properties of the Zone-Drawn Polypyrole films" Journal of Polymer Science, Polymer Physics. (in press).

T. Kunugi、H. Okuzaki：“区域拉伸聚吡咯薄膜的电气和机械性能”《高分子科学杂志》、《高分子物理学》。