CN102824861B - 聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜 - Google Patents

聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜 Download PDF

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CN102824861B
CN102824861B CN201210334474.0A CN201210334474A CN102824861B CN 102824861 B CN102824861 B CN 102824861B CN 201210334474 A CN201210334474 A CN 201210334474A CN 102824861 B CN102824861 B CN 102824861B
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poly
polyvinylidene fluoride
composite membrane
fluoride composite
polymer
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CN102824861A (zh
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贾宏葛
马立群
王雅珍
郭潇野
宋佳枫
刘飞飞
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Qiqihar North Kun Synthetic Polymer Materials Co., Ltd.
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Qiqihar University
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Abstract

本发明属于高分子材料与工程领域,特别涉及一种聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜,解决现有高分子型气体分离膜在气体的透过性和选择性方面相互制约关系的问题。本发明专利以含有硅的单体聚合,制备气体分离膜。采用本体聚合,两步聚合法,在玻璃上涂膜,制得的高分子型气体分离膜,在加热的条件下并不熔融,在溶剂中也就有足够的稳定性,对二氧化碳具有良好的选择性和透过性。

Description

聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜
本发明属于高分子材料与工程领域,特别涉及一种聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜的制备方法,解决了现有高分子型气体分离膜在气体的透过性和选择性方面相互制约关系的问题。 
膜分离技术是世界上最近几年来发展很快的一种高新技术,因为它具有节能环保、效率高和使用简单特点,已经被广泛地应用在了化工、环保等许多领域,也在相当大的程度上催进了经济的发展。目前气体分离膜可分为高分子分离膜、无机分离膜、有机-无机杂化分离膜三大类,但是现有高分子型气体分离膜气体的透过性和选择性方面都存在着相互制约的关系,即当膜的气体透过性好时选择性就会相对差些,当分离膜的选择性好的时候,气体的透过性就会受到影响。 
为了克服现有高分子型气体分离膜在气体的透过性和选择性方面相互制约关系的问题,本发明专利提供一种新的聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜,提高了二氧化碳的选择性和透过性。 
本发明专利采用的技术方案是:采用本体聚合制得聚合物,在玻璃上涂膜得到聚合物膜,具体工艺如下:将甲基丙烯酰氧乙氧基三甲基硅烷100份(摩尔数),偶氮二异丁腈0.5-1.5份(摩尔数)先后加入容器中,将装置放入40-60℃的油浴锅中反应3-10小时。再将制备的聚合物放在70-80℃的烘箱中约1-2小时,将聚偏氟乙烯微孔膜平铺在玻璃板上,等到聚合物粘性增加到能够可以控制流动性时,将所得的聚合物均匀的涂在聚偏氟乙烯微孔膜上。再将玻璃板放在55-75℃的烘箱中1-3小时左右,当聚合物在微孔膜上不再流动的时候,将其从玻璃板上揭下来,继续放在烘箱里,直到膜具有一定的强度。即得到聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜。 
本发明专利有益效果是,制得的新型高分子气体分离膜在加热的条件下并不熔融,在溶剂中也就有足够的稳定性,很好的重复性,其CO2/CH4和N2/CO2分离系数均达到10以上,CO2/N2混合气体透过中CO2的渗透系数可达2.3 barrers以上, CO2/CH4混合气体透过中CO2的渗透系数可达4.3 barrers以上,在不降低选择性的同时该膜也具有相当大的气体透过量,可以满足CH4/CO2的分离要求。 

Claims (1)

1.一种聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜制备方法,其特征在于,将摩尔比为100:0. 5-1.5的甲基丙烯酰氧乙氧基三甲基硅烷和偶氮二异丁腈先后加入容器中,将装置放入40-60℃的油浴锅中反应3-10小时,再将制备的聚合物放在70-80℃的烘箱中1-2小时,将聚偏氟乙烯微孔膜平铺在玻璃板上,等到聚合物粘性增加到能够可以控制流动性时,将所得的聚合物均匀的涂在聚偏氟乙烯微孔膜上,再将玻璃板放在55-75℃的烘箱中1-3小时,当聚合物在微孔膜上不再流动的时候,将其从玻璃板上揭下来,继续放在烘箱里,即得到聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜。
CN201210334474.0A 2012-09-12 2012-09-12 聚甲基丙烯酰氧乙氧基三甲基硅烷/聚偏氟乙烯复合膜 Expired - Fee Related CN102824861B (zh)

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CN101703898A (zh) * 2009-11-12 2010-05-12 南京工业大学 Pdms/pvdf渗透汽化复合膜、制备方法及其应用
CN102068926A (zh) * 2009-11-20 2011-05-25 中国科学院化学研究所 具有识别碱金属离子的功能复合膜及其制备方法
KR101144105B1 (ko) * 2009-06-16 2012-05-24 (주)에어레인 휘발성 유기화합물 분리 회수용 중공사막

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Publication number Priority date Publication date Assignee Title
KR101144105B1 (ko) * 2009-06-16 2012-05-24 (주)에어레인 휘발성 유기화합물 분리 회수용 중공사막
CN101703898A (zh) * 2009-11-12 2010-05-12 南京工业大学 Pdms/pvdf渗透汽化复合膜、制备方法及其应用
CN102068926A (zh) * 2009-11-20 2011-05-25 中国科学院化学研究所 具有识别碱金属离子的功能复合膜及其制备方法

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