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共聚甲基丙烯酸酯吸附功能纤维制备及其性能表征
  • ISSN号:1001-9731
  • 期刊名称:《功能材料》
  • 时间:0
  • 分类:O631[理学—高分子化学;理学—化学] TQ342.86[化学工程—化纤工业]
  • 作者机构:[1]天津工业大学改性与功能纤维天津市重点实验室,天津300160
  • 相关基金:国家自然科学基金资助项目(50673077)
中文摘要:

在聚合釜中合成了BMA/HEMA二元共聚树脂,利用双螺杆纺丝机、采用冻胶纺丝技术制备了有机液体吸附功能纤维,研究了纤维对有机液体的吸附性能,运用变形后的Langmuir吸附等温式对吸附过程进行了拟合处理,建立了相应的吸附动力学模型,并对纤维的选择吸附性能进行了研究,同时对纤维的溶解行为进行了表征。结果表明,HEMA引入主链后,纤维具有吸附有机液体甲苯、三氯乙烯的性能,但不能吸附水;HEMA质量分数较高时,可用变形后的Lang—muir吸附等温式预测该种纤维对甲苯和三氯乙烯的吸附动力学过程;纤维吸附甲苯的速率较快,6h内即可达到平衡状态,而吸附三氯乙烯的速率较慢,12h内才可达到平衡状态;在选择吸附过程中,甲苯浓度呈现先降低后增加的变化趋势,而吸附量和吸附效率却呈现相反的变化趋势;HEMA质量分数影响纤维交联结构的完善程度,HEMA质量分数达到159/6(质量分数)时,纤雏交联结构趋于完善,不溶部分增多,吸附能力大大增强。

英文摘要:

BMA/HEMA copolymer was synthesized in ganic liquid was prepared by gelation-spinning in twin polymerization kettle, and functional fiber absorbing orscrew spinning machine. Absorptive property was investigated in organic matter, and absorptive process was fitted by Langmuir formula of isothermal absorption after proper deformation to construct corresponding model about absorptive kinetics, and then selective absorption was studied in mixed system composed of toluene and water, finally solvable behavior was characterized. The results showed that functional fiber could absorb toluene and trichloroethylene after introducing HEMA in main chain of macromolecules, but could not absorb water. Langmuir formula of isothermal absorption could be used to predict the process of absorptive kinetics for toluene and trichloroethylene after proper deformation when mass fraction of HEMA was higher. Absorptive rate for toluene was quicker than that for triehloroethylene, equilibrium state could be reached during 6h for toluene, but equilibrium state could be reached within 12h for trichloroethylene. Concentration of toluene first decreased then increased, but toluene absorbency and absorptive efficiency first increased then decreased in the process of selective absorption. Mass fraction of HEMA could influence crosslinking structure, so absorptive capability was improved greatly due to perfect crosslinking structure and increase of unsolvable part when mass fraction of HEMA was equal to 15wt%.

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期刊信息
  • 《功能材料》
  • 北大核心期刊(2011版)
  • 主管单位:重庆材料研究院
  • 主办单位:重庆材料研究院
  • 主编:黄伯云
  • 地址:重庆北碚区蔡家工业园嘉德大道8号
  • 邮编:400707
  • 邮箱:gnclwb@126.com
  • 电话:023-68264739
  • 国际标准刊号:ISSN:1001-9731
  • 国内统一刊号:ISSN:50-1099/TH
  • 邮发代号:78-6
  • 获奖情况:
  • 2008、2011年连续获中国精品科技期刊,2010获重庆市双十佳期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:30166