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Langmuir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15%(质量分数)时,纤维交联结构趋于完善,不溶部分增多,吸附能力大大增强.
BMA/HEMA copolymer was synthesized in polymerization kettle, and functional fiber absorbing organic liquid was prepared by gelation-spinning in twin screw 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 trichloroethylene, 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%.
参考文献
| [1] | Zhou MH.;Cho WJ.;Ha CS. .Synthesis and properties of high oil-absorptive network polymer 4-tert-Butylstyrene-SBR-divinylbenzene[J].Journal of Applied Polymer Science,2001(5):1277-1285. |
| [2] | Zhou MH.;Cho WJ. .Synthesis and properties of high oil-absorbent 4-tert-butylstyrene-EPDM-divinylbenzene graft terpolymer[J].Journal of Applied Polymer Science,2002(10):2119-2129. |
| [3] | Zhou MH.;Cho WJ. .Oil absorbents based on styrene-butadiene rubber[J].Journal of Applied Polymer Science,2003(7):1818-1824. |
| [4] | Zhou M H;Cho W J .[J].Polymer International,2001,50:1193-1200. |
| [5] | Shan GR.;Xu PY.;Weng ZX.;Huang ZM. .Synthesis and properties of oil absorption resins filled with polybutadiene[J].Journal of Applied Polymer Science,2003(12):3309-3314. |
| [6] | 单国荣,徐萍英,翁志学,黄志明.单一化学交联与物理化学复合交联高吸油树脂的比较[J].高分子学报,2003(01):52-56. |
| [7] | 单国荣,赵霞,黄志明,翁志学.石蜡或聚丁二烯填充型高吸油树脂的合成及其性能比较[J].高分子学报,2004(04):523-527. |
| [8] | Shan GR.;Xu PY.;Weng ZX.;Huang ZM. .Oil-absorption function of physical crosslinking in the high-oil-absorption resins[J].Journal of Applied Polymer Science,2003(14):3945-3950. |
| [9] | Jang J.;Kim BS. .Studies of crosslinked styrene-alkyl acrylate copolymers for oil absorbency application. I. Synthesis and characterization[J].Journal of Applied Polymer Science,2000(4):903-913. |
| [10] | Jang J.;Kim BS. .Studies of crosslinked styrene-alkyl acrylate copolymers for oil absorbency application. II. Effects of polymerization conditions on oil absorbency[J].Journal of Applied Polymer Science,2000(4):914-920. |
| [11] | Ayman M A;Arndt K F .[J].Journal of Polymer Research,2005,12:77-88. |
| [12] | Ayman M A;Arndt K F .[J].Journal of Applied Polymer Science,2005,97:80-91. |
| [13] | Ayman M A;Rasha A E G;Reem K F et al.[J].Polymer International,2005,54:1088-1096. |
| [14] | Ayman M A;Rasha A E G;Reem K F et al.[J].Reactive and Functional Polymers,2006,66:931-943. |
| [15] | Feng Y;Xiao CF .Research on butyl methacrylate-lauryl methacrylate copolymeric fibers for oil absorbency[J].Journal of Applied Polymer Science,2006(3):1248-1251. |
| [16] | 徐乃库,肖长发,封严.甲基丙烯酸正丁酯/甲基丙烯酸β羟乙酯共聚吸附功能纤维的制备及表征[J].高等学校化学学报,2008(08):1677-1683. |
| [17] | 徐乃库,肖长发,宋喆.双螺杆冻胶纺丝法制备有机液体吸附功能纤维及其性能研究[J].高分子学报,2009(04):317-324. |
| [18] | 朱传棨;姚凌岷.丙烯酸酯及其聚合物(Ⅱ)[M].北京:化学工业出版社,1985:90-98. |
| [19] | 武军;李和平.高分子物理及化学[M].北京:中国轻工业出版社,2001:130-135. |
| [20] | 赵华山;姜胶东;吴大诚.高分子物理学[M].北京:纺织工业出版社,1994:47-53. |
| [21] | 张兴英;李齐方.高分子科学实验[M].北京:化学工业出版社,2004:312. |
| [22] | 张开.高分子物理学[M].北京:化学工业出版社,1981:42. |
| [23] | 金日光;华幼卿.高分子物理[M].北京:化学工业出版社,2000:61. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%