CN105440517A - Pvdf超滤膜 - Google Patents

Pvdf超滤膜 Download PDF

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CN105440517A
CN105440517A CN201510936312.8A CN201510936312A CN105440517A CN 105440517 A CN105440517 A CN 105440517A CN 201510936312 A CN201510936312 A CN 201510936312A CN 105440517 A CN105440517 A CN 105440517A
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pvdf
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polyvinylidene difluoride
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徐建林
邹建良
宗建青
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CHANGSHU LIYUAN MEMBRANE TECHNOLOGY Co Ltd
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CHANGSHU LIYUAN MEMBRANE TECHNOLOGY Co Ltd
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F114/18—Monomers containing fluorine
    • C08F114/22—Vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
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Abstract

本发明公开了一种PVDF超滤膜，以聚偏氟乙烯为膜的原料，聚偏氟乙烯制备步骤如下：1）反应釜中投入1～2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。本发明PVDF超滤膜具有耐腐蚀、耐热、耐寒、耐氧化、耐候性能。

Description

PVDF超滤膜
技术领域
本发明涉及PVDF超滤膜。
背景技术
现有超滤膜、分离膜、中空纤维膜的耐腐蚀、耐热、耐寒、耐氧化、耐候性能都有待提高。
发明内容
本发明的目的在于提供一种PVDF超滤膜，以聚偏氟乙烯为膜的原料，制备的膜具有优异的耐腐蚀、耐热、耐寒、耐氧化、耐候性能。
为实现上述目的，本发明的技术方案是设计一种PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1～2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
优选的，PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
优选的，PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
本发明的优点和有益效果在于：提供一种PVDF超滤膜，以聚偏氟乙烯为膜的原料，制备的膜具有优异的耐腐蚀、耐热、耐寒、耐氧化、耐候性能。
具体实施方式
下面结合实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
本发明具体实施的技术方案是：
实施例1
一种PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1～2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
实施例2
PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
实施例3
PVDF超滤膜，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.PVDF超滤膜，其特征在于，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1～2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
2.根据权利要求1所述的PVDF超滤膜，其特征在于，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入1重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
3.根据权利要求1所述的PVDF超滤膜，其特征在于，以聚偏氟乙烯为膜的原料，所述聚偏氟乙烯通过如下步骤制备：
1）反应釜中投入2重量份泡花碱、1.6重量份双氧水、1.9重量份无机碱溶液，混合均匀，再投入0.9重量份蓖麻油酸丁酯硫酸钠、15.2重量份六氟乙烷溶剂、0.4重量份磺酰氯溶液，在-5.5℃搅拌反应36分钟；
2）再投入4.7重量份聚甘油单硬脂酸酯、7.3重量份聚丙烯酸溶液、78重量份偏氟乙烯单体、3.8重量份2,2,3-三甲基戊烷，在31℃搅拌反应，压力下降至0.26MPa以下时终止反应；
3）过滤、洗涤、干燥，即得粉末状聚偏氟乙烯。
CN201510936312.8A 2015-12-16 2015-12-16 Pvdf超滤膜 Pending CN105440517A (zh)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448075A (zh) * 2014-12-06 2015-03-25 常熟丽源膜科技有限公司 用于制备热稳定性聚偏氟乙烯的方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448075A (zh) * 2014-12-06 2015-03-25 常熟丽源膜科技有限公司 用于制备热稳定性聚偏氟乙烯的方法

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Application publication date: 20160330