为探索相变调温Lyocell纤维的制备方法及其纤维性能,利用微胶囊法通过原液添加制备了调温 Lyocell纤维,通过电子显微镜、激光粒度仪、差示扫描量热仪以及扫描电镜等多种表征方法,表征了微胶囊分散液在N-甲基吗啉-N-氧化物(NMMO)水溶液中的分散情况,并研究了微胶囊添加量对纺丝原液和纤维性能的影响,表征了改性后的纤维形貌,测试了在吸放热条件下,实际的升降温情况。结果表明:微胶囊分散液可以良好的在NMMO水溶液中实现分散,随着微胶囊添加量的增加,纺丝溶液的黏度和可纺性未发生显著的变化;适当提高微胶囊的添加量有利于提高纤维焓值,当微胶囊量提高到35%以上时,纤维焓值不再变化;改性后的纤维横截面可以发现微胶囊的嵌入,纤维表面变得凹凸不平;利用相变调温Lyocell纤维制备的无纺布进行吸放热测试,织物具有明显的双向调温功能。
To explore the preparation method and performance of phase-changing and temperature-regulating Lyocell Fiber,by using the microcapsule method and adding the stock solution,a temperature-regulating Lyocell Fiber was prepared.With characterization methods such as electron microscope,laser particle analyzer,differential scanning calorimeter,and scanning electron microscope,the dispersion of microcapsule dispersion liquid in water solution of NMMO was characterized and the impact of the addition amount of microcapsules on the spinning solution and performance of fiber was studied.The morphology of the modified fiber was characterized and the actual temperature increasing and decreasing under the condition of absorption and release of heat was tested.The results indicated that the microcapsule dispersion liquid was dispersed in the water solution of NMMO.With the increase of the addition amount of microcapsules,the viscosity and spinnability of the spinning solution did not significantly change.Properly increasing the addition amount of microcapsules enabled to increase the enthalpy value of fiber.When the content of microcapsules was over 35%,the enthalpy value of fiber didn't change anymore.It was found that,on the cross section of the modified fiber,the microcapsules embedded and the surface of the fiber became uneven.Heat absorption and release test demonstrated that the non-woven fabrics prepared with the phase-changing and temperature-regulating lyocell fiber had obvious two-way temperature regulating function.
[1] 李景盛,高建,李倩倩,等.Lyocell纤维及其功能化研究进展[J].人造纤维,2019(2):25-29.
[2] 朱雪琪,彭康,张慧慧,等.功能化Lyocell纤维的研究进展[J].功能材料,2021,52(1):1078-1085.
[3] 王铁晗,靳宏,元伟,等.改性Lyocell纤维的研究开发进展[J].纺织导报,2020(7):38-44.
[4] 高殿才,路喜英,王华平,等.Lyocell纤维产业化技术开发[J].人造纤维,2019(1):2-6.
[5] 朱芯娅,闻井会,汤雅琪,等.Lyocell纤维的应用及发展[J].辽宁丝绸,2020(2):50-51.
[6] 万雷,吴文静,靳高岭,等.我国Lyocell产业的竞争与发展[J].人造纤维,2019(3):19-25.
[7] 孙洁,孙娜,周建安,等.相变微胶囊及其功能纺织品研究进展[J].服装学报,2019(3):189-200.
[8] 李薇,何源.微胶囊技术在智能纺织品上的应用[J].上海纺织科技,2019(12):1-3.
[9] 马菡婧,田宝华,何源,等.微胶囊相变材料的制备及在纺织品中的应用研究进展[J].化工新型材料,2020,48(4):20-23.
[10] 杨建,张国庆,刘国金,等.复合相变微胶囊制备及其在棉织物上的应用[J].纺织学报,2019,40(10):127-133.
[11] 李春.相变微胶囊在聚丙烯纤维中的应用[J].合成纤维,2019(5):18-20.
[12] 王委委,黄聪,蔡以兵,等.相变微胶囊的制备及其在调温织物中的应用[J].现代化工,2019,39(9):92-96.
[13] Aksoy Sennur Alay,Alkan Cemil,Tözüm M Selda,et al.Preparation and textile application of poly(methyl methacrylate-co-methacrylic acid)/n-octadecane and n-eicosane microcapsules[J].Journal of the Textile Institute,2016,108(1):30-41.
[14] Gu Mingqi,Zhang Wei,Hao Shang,et al.Ultraviolet light-initiated preparation of phase change material microcapsules and its infrared imaging effect on fabric[J].Pigment and Resin Technology,2020,50(2):129-135.
[15] Li Wei,Zhang Xingxiang,Wang Xuechen.Microencapsulated phase change materials and its application in thermal-regulated fibers[J].Key Engineering Materials,2012,519:6-9.
[16] 靳宏,刘怡宁,陈思,等.相变Lyocell纤维制备中微胶囊相变材料与溶剂的相互作用[J].纺织学报,2018,39(6):1-5.
[17] Becherini S,Mitmoen M,Tran C D.Biocompatible and smart composites from cellulose,wool,and phase-change materials encapsulated in natural sporopollenin microcapsules[J].ACS Sustainable Chemistry & Engineering,2020(8):10089-10101.
[18] Li Jing,Zhang Yiting,Zhang Zhongbi,et al.Preparation of phase change microcapsules-aerogels composites and the enhanced thermal properties[J].Materials Letters,2020,268:127563.
[19] 国家标准局信息分类编码研究所.GB/T 14337—2008,化学纤维:短纤维拉伸性能实验方法[S].北京:中国标准出版社,2008:3-5.
[20] 国家标准局信息分类编码研究所.FZ/T 52019—2018,莱赛尔短纤维[S].北京:中国标准出版社,2018:8-10.
[21] 杨革生,魏孟媛,杨彦菊,等.纤维素性质对纤维素溶液可纺性以及纤维性能的影响[J].纤维素科学与技术,2019(1):1-7.
[22] 张旺笋.染整加工对Lyocell纤维原纤化的影响[D].天津:天津纺织工学院,2000.
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