聚乙二醇二缩水甘油醚交联后处理对聚酰胺反渗透膜性能的影响

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• 英文论文题名：Effect of crosslinking treatment of PEGGM on performance of polyamide reverse osmosis membrane
• 论文作者：曾浩浩 ; 龙昌宇 ; 李弘强 ; 余普韧 ; 屠娇娇
• 英文论文作者：ZENG Haohao ; LONG Chang yu ; LI Hongqiang ; YU Puren ; TU Jiaojiao ; Hunan KeenSen Techonology Co. ; Ltd.
• 年：2016
• 作者机构：湖南沁森高科技环保有限公司;
• 论文关键词：交联剂 ; 聚乙二醇二缩水甘油醚 ; 分离性能
• 英文论文关键词：cross-linking agent ; polyethylene glycol diglycidyl ether ; separating property
• 会议召开时间：2016-11-25
• 会议录名称：第五届全国膜分离技术在冶金工业中应用研讨会论文集
• 语种：中文
• 分类号：TQ051.893
• 学会代码：LXJT
• 会议名称：第五届全国膜分离技术在冶金工业中应用研讨会
• 会议地点：中国湖南长沙
• 主办单位：中国膜工业协会、中南大学
• 学会名称：中国蓝星(集团)总公司膜科学与技术编辑部
• 页数：5
• 文件大小：570k
• 原文格式：O
• 会议级别：全国

摘要

以聚乙二醇二缩水甘油醚为交联剂后处理苦咸水反渗透膜片得到BW-1膜.考察了交联后处理对聚酰胺反渗透膜形貌结构及性能的影响,采用电子显微镜(SEM)对反渗透膜表面与断面形貌进行表征,聚酰胺分离层化学结构则通过全反射红外光谱(ATR-FTIR)来进行分析,膜表面亲水性测定采用视屏光学接触角测试仪来评价.以2000 mg/L NaCl溶液作为进料液,在1.55 MPa压力下测试了反渗透膜片的选择渗透性能,同时在500 mg/L活性氯料液条件下评价了膜片的耐氯性能.研究结果显示,通过聚乙二醇二缩水甘油醚交联后处理后,BW-1膜片的形貌结构没有发生明显变化,膜表面的亲水性减弱,膜片的分离性能和耐氯性能得到明显的提升.
BW-1 membrane was prepared via treating the brackish water reverse osmosis membrane withpolyethylene glycol diglycidyl ether as crosslinking agent,The influence of the crosslinking postprocessing on the structure and performance of polyamide reverse osmosis membrane were investigated.The surface and cross-section morphology of polyamide reverse osmosis membrane was characterized by SEM,and the structure of membrane was analyzed by ATR-FTIR,the hydrophilic was evaluated by the contact angle meter.The permeation performance of the reverse osmosis membrane was tested at a pressure of 1.55 MPa,using 2 000 mg/L NaCl solution as the feed solution.At the same time,the chlorine resistance of the membrane was evaluated under the condition of 500 mg/L active chlorine solution.The results showed that the morphological structure of BW-1 membrane did not change significantly after cross-linking treatment with polyethylene glycol diglycidyl ether,the membrane surface hydrophilicity weakened,membrane separation performance and chlorine resistance was significantly improved.

引文

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