杨大令等,新型聚芳醚腈酮中空纤维超滤膜的研究 预压后膜的水通量随着纤维壁厚的增加而降低,但参考文献 偏大,这是因为纤维厚度的增加增大了膜的传质阻么粗超滤技术与应用剧北京北学工业出版社204 相差不大,当厚度达到0.188mm时,通量降低程度]华 .H, Robbertsen T, Th V an D en Boom gaard, et al 力,表现为膜的水通量偏小。综合以上因素,确定最 Fou lng ofU F M em branes. The role of protain adsorption and salt precipitation [I. J M em brSci, 1989, 40: 199-217. 佳纤维壁厚为0.15~0.18mm B3]王国庆蹇锡高张守海,等低截留分子质量新型聚芳醚腈酮超 3结论 膜的研制[现代化工,2003,230)37-40. ]王国庆张守海杨大令,等新型聚芳醚腈酮超滤膜制备:非溶剂 采用干一湿相转化法制备中空纤维超滤膜,当 添加剂的影响[功能高分子学报2005,180)105-10 聚合物浓度取13%~14%,添加剂EgoH含量α在⑤]王国庆,张守海,杨大令,等蒸发对新型聚芳醚腈酮超滤膜性能 0.8~0.9范围内,制得的超滤膜性能较优,最高通量 的影响[膜科学与技术,2005,25)1821. 可达770L·mh l6]杨永强杨大令张守海等高性能中空纤维超滤膜结构和性能 空气间隙的增加可提高膜的截留性能,但通量 研究现代化工2005,255):4-47 会有所下降,选取最佳空气间隙为5~8cm。凝胶浴 r]贠延滨,李继定,陈翠仙PVPK30和 Tween80对中空纤维超滤 膜结构和性能的影响[水处理技术2006,32)14-17 温度在试验范围内升高有利于膜通量的增大,而截8] W en-tiChouM ing-Chien Y ang. Effect of coagu lant tem perature 留率变化不大,因此在制膜时,可以适当提高凝胶浴 and com position on surface m orpho logy and m ass transferproper- 温度,本试验选取最佳凝胶浴温度为21~25℃。中 ties ofcelhlse acetate hollow fiber em branes [n. Polym A dv 空纤维超滤膜纤维壁厚为0.15~0.18mm时膜结构 Technol,2005,16524-532. 破坏程度较低,制得的超滤膜具有优良的超滤性能, STUDY ON NOVEL POLY (PH THALAZNONE ETHER N ITRLE KETONE)HOLLOW FBER ULTRAFILTRATION MEMBRANES YANG Da-ling, ZHANG Y ao, ZHANG Shouhai, han Jun-man, JIAN X igao ( eparm entofPolym erM aterial dalian University ofTechnology, L ion ing H igh Perform ance R esin Engineering R esearch Center, Dalian 116012, China) A bstract: By using poly phthalazinone ethernitrile ketone)PEN K )as m em brane m aterial, N-m ethy h2-pynclidone NM P)as solvent, the hollow fber m em brane were prepared by the dry wetphase inversion techn ique. T he effectof PpEN K concentration, additive content, air gap distance, ge Hath tem perature and fiber thickness during the m em brane prepared process on the structure and property ofppen k ho llow fiberultrafiltration m em branes were studied. By the retention test ofB SA, the resu Its show ed that the pure w ater flx of m em branes w as 770 L.m+h- when the ppenk concentration was 13% and rato of near-to cud point (F0.9 for Ego H content: w ith the increase of the air gap distance pure w ater flux of the m em brane decreased w hile the retention of BsA increased, the best air gap range w as 5-8 cm: w ith the increase of ge Hath tem perature, pure water fluxes increased while the retention of BSa decreased. The proper ge hath tem perature w as 21-25C and the optim um range of fiber thickness w as about 15-0. 18 mm K eyw ords: PPEN K: ho low fiberu ltrafiltration m em brane: po lym erconcentration: air gap distance: ge Hath tem perature (上接第9页) ANALYSIS OF ENV RONM ENTAL EFFECT BY SEA WATER DESALINATION JIN CHUNHUA SHAO KUN, JIANG HUA JN Chun-hua ShAo Kuixin, JIANG Hua China W ater Intemational E ngineering Consulting, CoLtd, Beiing 100053, China) A bstract: Three w ere m any problem s in the sea w ater desalination, such as energy consum ption, so lid w aste, concentrated salt solution, chem ical epc- on etc. The potentaleffectof them on ocean environm entex isted. The prevention and so hutton for these prob lem s shou d be done as soon as possible. K eyw ords: sea w aterdesalination: environm entaleffect: coun tem easure C1994-2008ChinaAcademicjOurnalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.netANALYSIS OF ENVIRONMENTAL EFFECT BY SEA WATER DESALINATION JIN CHUNHUA SHAO KUIXIN, JIANG HUA JIN Chun-hua SHAO Kui-xin, JIANG Hua (China Water International Engineering Consulting,Co.Ltd, Beijing 100053, China) Abstract: Three were many problems in the sea water desalination, such as energy consumption, solid waste, concentrated salt solution, chemical ejec￾tion etc. The potential effect of them on ocean environment existed. The prevention and solution for these problems should be done as soon as possible. Keywords: sea water desalination; environmental effect; countermeasure STUDY ON NOVEL POLY( PHTHALAZINONE ETHER NITRILE KETONE ) HOLLOW FIBER ULTRAFILTRATION MEMBRANES YANG Da-ling, ZHANG Yao, ZHANG Shou-hai, HAN Jun-nan, JIAN Xi-gao (Department of Polymer Materials, Dalian University of Technology, Liaoning High Performance Resin EngineeringResearch Center, Dalian 116012, China) Abstract: By using poly(phthalazinone ether nitrile ketone)(PPENK) as membrane material, N-methyl-2-pyrrclidone (NMP) as solvent, the hollow fiber membrane were prepared by the dry-wet phase inversion technique. The effect of PPENK concentration, additive content, air gap distance, gel-bath tem￾perature and fiber thickness during the membrane prepared process on the structure and property of PPENK hollow fiber ultrafiltration membranes were studied. By the retention test of BSA, the results showed that the pure water flux of membranes was 770 L·m-2 ·h-1 when the PPENK concentration was 13% and ratio of near-to cloud point α=0.9 for EgOH content; with the increase of the air gap distance, pure water flux of the membrane decreased while the retention of BSA increased, the best air gap range was 5～8 cm; With the increase of gel-bath temperature, pure water fluxes increased while the retention of BSA decreased. The proper gel-bath temperature was 21～25℃ and the optimum range of fiber thickness was about 0.15～0.18 mm. Keywords: PPENK; hollow fiber ultrafiltration membrane; polymer concentration; air gap distance; gel-bath temperature 预压后膜的水通量随着纤维壁厚的增加而降低，但 相差不大，当厚度达到 0.188 mm 时，通量降低程度 偏大，这是因为纤维厚度的增加增大了膜的传质阻 力，表现为膜的水通量偏小。综合以上因素，确定最 佳纤维壁厚为 0.15～0.18 mm。 3 结 论 采用干 - 湿相转化法制备中空纤维超滤膜，当 聚合物浓度取 13%～14%，添加剂 EgOH 含量 α在 0.8～0.9 范围内，制得的超滤膜性能较优，最高通量 可达 770 L·m-2 ·h-1 。 空气间隙的增加可提高膜的截留性能，但通量 会有所下降，选取最佳空气间隙为 5～8 cm。凝胶浴 温度在试验范围内升高有利于膜通量的增大，而截 留率变化不大，因此在制膜时，可以适当提高凝胶浴 温度，本试验选取最佳凝胶浴温度为 21～25℃。中 空纤维超滤膜纤维壁厚为 0.15～0.18 mm 时膜结构 破坏程度较低，制得的超滤膜具有优良的超滤性能。 参考文献: [1] 华耀祖.超滤技术与应用[M].北京:化学工业出版社,2004. [2] Hanemaaijer J H, Robbertsen T, Th Van Den Boomgaard, et al. Fouling of UF Membranes. The role of protain adsorption and salt precipitation[J]. J Membr Sci.,1989,40:199-217. [3] 王国庆,蹇锡高,张守海,等.低截留分子质量新型聚芳醚腈酮超 滤膜的研制[J].现代化工,2003,23(7):37-40. [4] 王国庆,张守海,杨大令,等.新型聚芳醚腈酮超滤膜制备:非溶剂 添加剂的影响[J].功能高分子学报,2005,18(1):105-110. [5] 王国庆,张守海,杨大令,等.蒸发对新型聚芳醚腈酮超滤膜性能 的影响[J].膜科学与技术,2005,25(3):18-21. [6] 杨永强,杨大令,张守海,等.高性能中空纤维超滤膜结构和性能 研究[J].现代化工,2005,25(5):44-47. [7] 贠延滨,李继定,陈翠仙.PVPK30 和 Tween80 对中空纤维超滤 膜结构和性能的影响[J].水处理技术,2006,32(1):14-17. [8] Wen-Li Chou,Ming-Chien Yang. Effect of coagulant temperature and composition on surface morphology and mass transfer proper￾ties of cellulose acetate hollow fiber membranes [J]. Polym Adv Technol., 2005,16:524-532. （上接第 9 页） !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 杨大令等，新型聚芳醚腈酮中空纤维超滤膜的研究 25