CN203678267U - 一种复合超滤膜 - Google Patents

一种复合超滤膜 Download PDF

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CN203678267U
CN203678267U CN201420005652.XU CN201420005652U CN203678267U CN 203678267 U CN203678267 U CN 203678267U CN 201420005652 U CN201420005652 U CN 201420005652U CN 203678267 U CN203678267 U CN 203678267U
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membrane
ultrafiltration membrane
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蔡铜祥
杨晓伟
徐德善
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Zhongke Yueda Shanghai Material Technology Co ltd
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Jiangsu Yueda Novel Material Science And Technology Ltd
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Abstract

本实用新型涉及一种用于水净化处理装置的复合膜,特别是一种复合超滤膜,由支撑层(1)、聚砜基膜层(2)和氧化石墨烯层(3)三层复合而成。聚砜基膜层(2)附着在支撑层(1)上,氧化石墨烯层(3)复合在聚砜基膜层(2)上,其中支撑层(1)的厚度为10~50μm,聚砜基膜层(2)的厚度为20~100μm,氧化石墨烯层(3)的厚度为100nm~20μm。其优点是,具有良好的渗透性、耐溶性、耐温性和高的机械强度,改善了膜的表面性能,提高了其亲水性能,可用于海水处理、苦咸水淡化、水过滤净化,提高水的质量,并有效解决超滤膜易被疏水性物质污染的问题。

Description

一种复合超滤膜
技术领域
本实用新型涉及一种用于水净化处理装置的复合膜,特别是一种复合超滤膜。 
背景技术
聚砜是近年来人工合成的一种性能优越的工程材料,其良好的生物相容性,同时具有优异的力学性能、耐热、耐碱、耐腐蚀等特点,且价格便宜,是目前最常用的膜材料之一,所制备的膜广泛用于水净化处理装置。但它的分子结构决定其具有较强的疏水性,尤其是用于水介质处理时,不仅渗透性差,而且一些疏水性的污染物质也容易在膜表面堆积使得膜被污染,最终导致水透过膜的动力消耗过大。氧化石墨烯结构中含有大量的功能性基团,如-OH、-COOH、-O-、C=O等,使其与常见的高分子聚合物膜材料复合成膜,可以改善原有膜材料的一些弊端,使复合膜具有更优异的性能。 
实用新型内容
本实用新型的目的在于克服现有技术的不足,提供一种复合超滤膜,能够有效地解决现有高分子超滤膜亲水问题,并有效解决超滤膜易被疏水性物质污染的问题。 
本实用新型的技术解决方案是,由支撑层(1)、聚砜基膜层(2)和氧化石墨烯层(3)三层复合而成;聚砜基膜层(2)附着在支撑层(1)上,氧化石墨烯层(3)通过涂覆法附着在聚砜基膜层(2)上。 
所述的支撑层(1)的厚度为10~50μm,聚砜基膜层(2)的厚度为20~100μm,氧化石墨烯层(3)的厚度为100nm~20μm。 
所述支撑层(1)为聚酯无纺布或100~300目的丝网。 
本实用新型与现有技术相比,所具备的优点是,采用聚砜作为膜基材料,一方面保持了原有的聚砜性能稳定、力学性能好、耐腐蚀等优点,另一方面与氧化石墨烯复合,由于氧化石墨烯具有大的横纵比,表面粗糙,具有较多的官能团以及优良的分散性,能与聚砜高分子链良好接触,可以大大改善原有聚砜层的亲水性能,提高膜的渗透性,可以有效解决超滤膜易被疏水性物质污染的问题,同时使得复合膜的机械强度提高。 
附图说明
附图为本实用新型的结构示意图。 
图中标号:1-支撑层,2-聚砜基膜层,3-氧化石墨烯层。 
具体实施方式
本实用新型复合超滤膜,由支撑层(1)、聚砜基膜层(2)和氧化石墨烯层(3)三层复合而成。聚砜基膜层(2)附着在支撑层(1)上,氧化石墨烯层(3)通过涂覆法附着在聚砜基膜层(2)上。支撑层(1)的厚度为20μm,聚砜基膜层(2)的厚度为50μm,氧化石墨烯层(3)的厚度为5μm。本实用新型的支撑层(1)为聚酯无纺布。 

Claims (3)

1.一种复合超滤膜,其特征在于:由支撑层(1)、聚砜基膜层(2)和氧化石墨烯层(3)三层复合而成;聚砜基膜层(2)附着在支撑层(1)上,氧化石墨烯层(3)通过涂覆法附着在聚砜基膜层(2)上。
2.根据权利要求1所述的一种复合超滤膜,其特征在于:所述的支撑层(1)的厚度为10~50μm,聚砜基膜层(2)的厚度为20~100μm,氧化石墨烯层(3)的厚度为100nm~20μm。
3.根据权利要求1所述的一种复合超滤膜,其特征在于:所述支撑层(1)为聚酯无纺布或100~300目的丝网。
CN201420005652.XU 2014-01-06 2014-01-06 一种复合超滤膜 Expired - Lifetime CN203678267U (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105664739A (zh) * 2016-01-22 2016-06-15 唐山海清源科技股份有限公司 一种高亲水性聚砜超滤膜的制备方法
CN105771689A (zh) * 2016-04-26 2016-07-20 福州大学 一种高抗菌的PVDF/GO/Ag复合膜及其制备方法
CN106139929A (zh) * 2014-11-20 2016-11-23 中原大学 石墨烯过滤膜及其制作方法
CN106902653A (zh) * 2017-03-06 2017-06-30 浙江绿龙新材料有限公司 抗金属饮用水用反渗透膜及其生产工艺
CN109529626A (zh) * 2018-08-21 2019-03-29 清华大学 一种利用纳滤膜脱除花青素中糖类的方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106139929A (zh) * 2014-11-20 2016-11-23 中原大学 石墨烯过滤膜及其制作方法
CN105664739A (zh) * 2016-01-22 2016-06-15 唐山海清源科技股份有限公司 一种高亲水性聚砜超滤膜的制备方法
CN105771689A (zh) * 2016-04-26 2016-07-20 福州大学 一种高抗菌的PVDF/GO/Ag复合膜及其制备方法
CN106902653A (zh) * 2017-03-06 2017-06-30 浙江绿龙新材料有限公司 抗金属饮用水用反渗透膜及其生产工艺
CN109529626A (zh) * 2018-08-21 2019-03-29 清华大学 一种利用纳滤膜脱除花青素中糖类的方法

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