Preparation of nonwoven fabrics made from microfibers by using a carbon dioxide laser-thinning method

二氧化碳激光细化法制备超细纤维非织造布

• 批准号: 17350105
• 负责人: SUZUKI Akihiro
• 金额: $ 9.86万
• 依托单位: University of Yamanashi
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17350105/
• 关键词: Poly(ethylene terephthalate); Poly(L-lactic acid); Poly(glycolic acid); Microfiber; Nonwoven fabric; Carbon dioxide laser; Thinning; Nanofiber; 生分解性

A carbon dioxide (CO_2) laser-thinning method developed by us could easily produce the nonwoven fabrics without using any solvent such as electrospinning and flashspinning. The obtained nonwoven fabric was composed of the endless mircofibers with a uniform diameter without droplets such as the meltblowing.Poly(ethylene terephthalate) (PET) nonwoven fabric was prepared from microfibers obtained by using a carbon dioxide laser-thinning method. The PET nonwoven fabric obtained was made of the endless mircofibers with a uniform diameter without droplets. The fiber diameter can be varied by controlling an airflow rate into the air jet and a supplying speed of an original fiber into a laser-irradiating point. The fiber diameter decreased, and its birefringence increased as the airflow rate increased and the supplying speed decreased. When the microfiber prepared by irradiating the laser operated at a power density of 4.8 W cm^<-2> to the original fiber supplied at S_s=0.15 m min^<-1> was dragged at an airflow rate of 30 L min^<-1>, the thinnest microfiber with a diameter of 3.6 pm was obtained.Poly(L-lactic acid) (PLLA) nonwoven fabric was prepared from microfibers obtained by using a carbon dioxide laser-thinning method. The PLLA nonwoven fabric obtained was made of the endless mircofibers with a uniform diameter without droplets. The fiber diameter can be varied by controlling an airflow rate into the air jet, a supplying speed of an original fiber into a laser-irradiating point, and laser power strength. The fiber diameter decreased, and its birefringence increased as the airflow rate increased and the supplying speed decreased. When the microfiber prepared by irradiating the laser operated at a power strength of 66 W cm^<-2> to the originalfiber supplied at S_s=0.1 m minwas dragged at an airflow rate of 30 L min^<-1>, the thinnest microfiber with a diameter of 3.4 μm was obtained.

我们开发的CO_2激光减薄法可以在不使用任何溶剂的情况下，如静电纺丝和闪蒸纺丝，很容易地制备出非织造布。所获得的非织造织物由具有均匀直径的无端微纤维组成，没有熔喷等液滴。聚对苯二甲酸乙二醇酯（PET）非织造织物由通过使用二氧化碳激光细化方法获得的微纤维制备。所获得的PET非织造织物由具有均匀直径且无液滴的无端微纤维制成。纤维直径可以通过控制进入空气射流的气流速率和原始纤维进入激光照射点的供给速度来改变。纤维直径减小，双折射率随气流流量的增大而增大，随送料速度的减小而减小。当以30 L min-1的气流速率牵引通过将以4.8 W cm-1的功率密度操作的激光照射<-2>到以S_s=0.15 m min-1供应的原始纤维<-1><-1>而制备的微纤维时，获得直径为3.6 μ π ι的最细的微纤维。所得PLLA非织造织物由具有均匀直径且无液滴的无端微纤维制成。纤维直径可以通过控制进入空气射流的气流速率、原始纤维进入激光照射点的供给速度和激光功率强度来改变。纤维直径减小，双折射率随气流流量的增大而增大，随送料速度的减小而减小。当以功率强度为66 W·cm-3的激光照射<-2>以S_s= 0.1m·min-1供给的原始纤维而制备的超细纤维以30 L·min-3的气流速率被拖曳时<-1>，获得直径为3.4 μm的最细的超细纤维。

项目成果

極細フィラメントの製造方法、製造装置およびそれらによるナノフィラメント

超细长丝的制造方法、制造装置以及使用其的纳米长丝

• 发表时间: 2007

Preparation of poly(ethylene terephthalate)nonwoven fabric from endless microfibers obtained by CO_2 laser-thinning method

CO_2激光细化法连续超细纤维制备聚对苯二甲酸乙二醇酯非织造布

• 发表时间: 2007
• 期刊: Polymer 48
• 作者: Akihiro Suzuki; Mahomi Kishi
• 通讯作者: Mahomi Kishi

Isotactic polypropylene microfiber prepared by continuous laser-thinning method

连续激光细化法制备等规聚丙烯微纤维

• 发表时间: 2005
• 期刊: J Appl.Polym.Sci. (in press)
• 作者: Akihiro Suzuki;Shinichi Narisue
• 通讯作者: Shinichi Narisue

"ファイバー" スーパーバイオミメティックス 〜近未来の新技術創成〜

“纤维”超级仿生学-在不久的将来创造新技术-

• 发表时间: 2006
• 作者: 赤木和夫;飯田洋;赤木和夫(分担執筆)
• 通讯作者: 赤木和夫(分担執筆)

Superstructure and mechanical properties of poly(L-lactic acid) microfibers prepared by CO_2 lacer-thinning

CO_2拉丝细化法制备聚L-乳酸微纤维的超结构及力学性能

• 发表时间: 2005
• 期刊: Polymer Vol 46
• 作者: Akihiro Suzuki;Daisuke Mizuochi;Toshinori Hasegawa
• 通讯作者: Toshinori Hasegawa