| 水溶性PVA纤维的溶解过程及其影响因素分析 |
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| 引用本文： | 徐斗峰,黄长根,唐文君,姚金龙,何瑾馨.水溶性PVA纤维的溶解过程及其影响因素分析[J].印染助剂,2011,28(6). |
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| 作者姓名： | 徐斗峰 黄长根 唐文君 姚金龙 何瑾馨 |
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| 作者单位： | 1. 东华大学化学化工与生物工程学院纺织面料技术教育部重点实验室,上海,201620
2. 江苏联发纺织股份有限公司,江苏南通,226600 |
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| 摘 要： | 采用光学显微镜(OM)和X射线衍射(XRD),分析了完全醇解型聚乙烯醇(PVA)纤维的溶胀溶解过程.探讨了溶解温度、时间、碱剂(NaOH)和氧化剂(H2O2)对PVA纤维溶解性能的影响.结果表明:水分子渗入到纤维内部减弱无定形区的氢键作用引起纤维溶胀,纤维结晶区吸收能量破坏晶格,使水分子渗入晶区内部发生溶胀溶解.影响水溶性PVA纤维溶解性能的主要因素是溶解温度和溶解时间;Na+产生的凝聚作用抑制了PVA纤维的进一步溶解.
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| 关 键 词： | 水溶性PVA纤维 溶胀溶解 氢氧化钠 离子凝聚 氧键 |
Study on the dissolution and influencing factors of water-soluble PVA fiber |
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| XU Dou-feng,HUANG Chang-gen,TANG Wen-jun,YAO Jin-long,HE Jin-xin.Study on the dissolution and influencing factors of water-soluble PVA fiber[J].Textile Auxiliaries,2011,28(6). |
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| Authors: | XU Dou-feng HUANG Chang-gen TANG Wen-jun YAO Jin-long HE Jin-xin |
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| Affiliation: | XU Dou-feng1,HUANG Chang-gen2,TANG Wen-jun2,YAO Jin-long2,HE Jin-xin1(1.Key Laboratory of Textile Science & Technology,Ministry of Education,College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China,2.Jiangsu Lianfa Textile Co.,Ltd.,Nantong 226600,China) |
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| Abstract: | The swelling-dissolution process of fully alcoholysis PVA fiber was investigated by optical microscope(OM) and X-ray diffraction(XRD).The effects of dissolution temperature and time,sodium hydroxide and hydrogen peroxide concentrations on the dissolving capability of PVA fiber were discussed.The results showed that the water molecule penetration into the interior of PVA fiber,which weakened the hydrogen bond of amorphous region and caused the swelling of PVA fiber.The crystalline region of fibers absorbed t... |
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| Keywords: | water-soluble PVA fiber swelling-dissolution sodium hydroxide ion agglomeration hydrogen bond |
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