CN105920919B - 一种用于净化pm2.5的超疏水驻极体滤材的制备及活化方法 - Google Patents

一种用于净化pm2.5的超疏水驻极体滤材的制备及活化方法 Download PDF

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CN105920919B
CN105920919B CN201610329607.3A CN201610329607A CN105920919B CN 105920919 B CN105920919 B CN 105920919B CN 201610329607 A CN201610329607 A CN 201610329607A CN 105920919 B CN105920919 B CN 105920919B
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super
electret
hydrophobic
purify
filter
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CN105920919A (zh
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张立志
鲍爱兵
蔡容容
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to PCT/CN2016/098632 priority patent/WO2017197812A1/en
Priority to US16/300,168 priority patent/US11014028B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/785—Regeneration of the filtering material or filter elements inside the filter by electrical means, e.g. for the generation of electrostatic forces in order to reject particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
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  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

本发明属于空气净化材料技术领域，公开了一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法。所述方法为：将无机驻极体纳米粒子加入到溶剂当中分散均匀，再向其中加入聚合物，搅拌溶解均匀得到含无机驻极体纳米粒子的聚合物溶液；将上述溶液通过静电纺丝制备于无纺布上，得到驻极体纳米纤维层；再用低表面能溶液对纤维层表面进行表面修饰，得到产物。本发明所得滤材具有超疏水效果，表面电势大，即使在潮湿的空气中也会长久持有表面电势，而且还具有抑制微生物细菌等在滤材表面的生长。使用后的滤材经过高压电场清洁与活化，可反复使用，大大节约了生产成本，可广泛应用于空气净化等领域。

Description

一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法
技术领域
本发明属于空气净化材料技术领域，具体涉及一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法。
背景技术
高性能净化PM2.5的驻极体过滤材料不仅需要具有效率高、阻力低的特点，还需要在潮湿的空气中长久的持有表面电荷。传统的净化PM2.5的驻极体过滤材料都是亲水材料，并没有对材料进行表面处理，这样在使用一段时间之后表面电势就会衰减最终消失。另外，常规净化PM2.5的驻极体过滤材料在表面电势衰减之后过滤性能会大幅度下降，重新制作滤材直接导致了生产成本的提高。
目前，驻极体空气过滤材料的研究主要在于滤材的驻极方法上，驻极方法主要采用电晕放电和热极化的方式，这两种方式虽然可以制成效果比较理想的驻极体纤维滤材，但是缺点也是有目共睹的：驻极性能不够稳定，电荷容易衰减，装置比较复杂，成本偏高。国内2010年12月8日公开的CN101905101A发明型专利介绍了一种熔喷聚丙烯驻极体过滤材料的制备方法，它通过高速热空气挤出超细纤维然后电晕放电使其驻极制成驻极体材料，虽然制成的驻极体效率高，但是阻力大并且电势衰减快。美国2015年4月23日公开的US2015/0107457A1发明型专利介绍了一种用离心装置制造纤维材料并用电晕放电使其驻极，制成的纤维驻极体具有高效低阻的特点，但是装置过于复杂，成本过高。驻极体纤维滤材的电势受环境影响比较大，在中国南方如广东地区的潮湿空气中电势会很快衰减并消失，这大大降低了滤材的效率以及使用期限。2015年1月21日公开的CN104289042A的发明型专利介绍了一种利用静电纺丝制造驻极体纳米纤维的方法，利用这种方法制造的纤维具有较高的过滤效果，但是并未提及滤材的清洁与再生，滤材不能长时间工作。
发明内容
为了克服以上现有技术的缺点和不足之处，本发明的首要目的在于提供一种用于净化PM2.5的超疏水驻极体滤材的制备方法。
本发明的另一目的在于提供一种通过上述方法制备得到的用于净化PM2.5的超疏水驻极体滤材。
本发明的再一目的在于提供上述用于净化PM2.5的超疏水驻极体滤材的活化方法。
本发明目的通过以下技术方案实现：
一种用于净化PM2.5的超疏水驻极体滤材的制备方法，包括如下制备步骤：
(1)将含量为0.5-5wt.％的一种或几种无机驻极体纳米粒子加入到溶剂当中，超声震荡分散均匀，再向其中加入质量分数为5-25wt.％的聚合物，搅拌溶解均匀，得到含无机驻极体纳米粒子的聚合物溶液；
(2)将步骤(1)所得聚合物溶液通过静电纺丝技术制备于无纺布上，得到驻极体纳米纤维层；
(3)将低表面能物质溶于溶剂中，得到低表面能溶液，然后将其喷涂到步骤(2)所得驻极体纳米纤维层表面进行表面修饰，得到所述用于净化PM2.5的超疏水驻极体滤材。
优选地，所述无机驻极体纳米粒子为二氧化硅、二氧化钛、钛酸钡或氮化硅。
优选地，步骤(1)中所述的聚合物是指聚偏氟乙烯、聚氯乙烯、聚丙烯腈、聚碳酸酯、聚醚酰亚胺、聚苯乙烯或聚氨酯；所述溶剂的作用是溶解相应的聚合物，溶剂可选自N-N二甲基甲酰胺、丁酮、四氢呋喃、二氯甲烷和甲基吡咯烷酮中的一种或两种以上的混合；作为更进一步的优选，所述聚合物和溶剂分别对应如下：
聚偏氟乙烯：N-N二甲基甲酰胺和丁酮质量比为1:1的混合溶剂；
聚氯乙烯：N-N二甲基甲酰胺和四氢呋喃质量比为1:1的混合溶剂；
聚丙烯腈：N-N二甲基甲酰胺；
聚碳酸酯：二氯甲烷；
聚醚酰亚胺：N-N二甲基甲酰胺和甲基吡咯烷酮质量比为1:1的混合溶剂；
聚苯乙烯：N-N二甲基甲酰胺和四氢呋喃质量比为3:1的混合溶剂；
聚氨酯:丁酮。
优选地，步骤(2)中所述静电纺丝的工艺条件为：电压10-30KV，接收距离5-25cm，注射速度1-5mL/h，温度0-35℃，相对湿度0-70％。
优选地，步骤(3)中所述低表面能物质选自硬脂酸、十六烷基三甲氧基硅烷、1H,1H,2H,2H-全氟烃基三乙氧基硅烷、1H,1H,2H,2H-全氟烃基三氯硅烷；所述溶剂是指甲醇或乙醇；作为更进一步的优选，所述低表面能物质和溶剂分别对应如下：
硬脂酸：乙醇；
十六烷基三甲氧基硅烷：甲醇；
1H,1H,2H,2H-全氟烃基三乙氧基硅烷：乙醇；
1H,1H,2H,2H-全氟烃基三氯硅烷：乙醇。
优选地，所述低表面能物质溶于溶剂中的体积比为1:1000。
一种用于净化PM2.5的超疏水驻极体滤材，通过上述方法制备得到，所述滤材为无纺布和超疏水驻极体纳米纤维的两层结构。
优选地，所述无纺布的克重为100-350g/m2，厚度为1-10mm；纳米纤维层的纳米纤维直径在100-900nm之间，纳米纤维层的克重为0.01-5g/m2，孔隙率≥85％，表面电势为1000V-4000V，疏水角大于150°。
上述用于净化PM2.5的超疏水驻极体滤材的活化方法，包括如下步骤：
(1)清洁：当滤材净化PM2.5粒子达到饱和时，取下滤材，把滤材作为阻挡介质放入高压电场中，通入与粒子电荷相同的高压，通过与粒子电荷相互排斥达到清洁的效果；
(2)喷涂和再生：重新将低表面能溶液喷涂到滤材纤维表面进行表面修饰，将喷涂过后的滤材再次作为阻挡介质放入高压电场中，对调高压电场的正负极进行高压带电处理，使滤材重新带上电荷进行净化工作。
优选地，步骤(1)在清洁的过程中同时进行吹扫，颗粒物随着吹扫风带走。
优选地，所述清洁过程中高压为5-15KV，电极类型为板状，面积与滤材的面积相当，正负电极之间的间距为10-50mm，处理时间不低于5S。
优选地，所述再生过程高压为5-15KV，处理时间不低于5S。
本发明具有如下优点及有益效果：
(1)本发明滤材的超疏水驻极体纳米纤维的制作分两部分，静电纺丝和低表面能液体喷涂改性；该制作方法简单，制成的驻极体纤维在净化PM2.5粒子时不仅具有高效低阻的特点，还具有超疏水的效果，在潮湿空气中能长久持有表面电势；而且由于超疏水驻极体纳米纤维由于具有超疏水的效果，可以有效地抑制细菌微生物在滤材表面的生长，从而保护滤材；
(2)本发明还涉及了驻极体纤维的清洁与再生，提高驻极体滤材的耐久性，从而实现滤材对PM2.5的长久高效净化。
附图说明
图1是本发明所使用的静电纺丝设备结构示意图；图中编号说明如下：1-转筒接收器的电机，2-转筒接收器，3-静电纺丝装置的推注系统，4-静电高压提供系统。
图2是本发明的低表面能溶液喷涂过程中所使用的喷涂装置的结构示意图；图中编号说明如下：5-进样桶，6-液体调节旋钮，7-喷嘴，8-气体调节旋钮，9-调节阀，10-高压氮气瓶。
图3是本发明的滤材再生装置结构示意图；图中编号说明如下：11-负电极板，12-正电极板，13-滤材。
具体实施方式
下面结合实施例及附图对本发明作进一步详细的描述，但本发明的实施方式不限于此。
实施例1
本实施例的一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法，具体步骤为：
(1)将聚氯乙烯粉末置于60℃的真空烘箱中干燥2h。
(2)用电子天平准确称取10.875g N-N二甲基甲酰胺和10.875g四氢呋喃置于50mL烧杯当中，然后称取0.25g二氧化硅(纯度99.5％，平均粒径15nm)置于上述混合溶剂中，用超声震荡仪震荡1h，取出烧杯，用电子天平准确称取3g干燥好的聚氯乙烯粉末置于烧杯中，烧杯放在磁力搅拌器上搅拌6h，配制成均匀并且稳定的含二氧化硅纳米粒子的聚氯乙烯溶液；
(3)使用图1所示的静电纺丝设备进行电纺，将剪裁好的无纺布，克重为150g/m2，厚度为3mm，黏在转筒接收器上，调节静电纺丝参数，转筒接收速度25r/min，推注系统的平移速度为60mm/min，接收距离为15cm，静电高压为15KV，推注速度为1mL/h。得到驻极体纳米纤维层。
(4)配制低表面能溶液，准确量取100mL无水乙醇，向其中滴加6滴1H,1H,2H,2H-全氟烃基三乙氧基硅烷，静置2h。把配制好的溶液倾倒入图2所示的喷涂装置中，对驻极体纳米纤维层表面进行低表面能溶液修饰，喷射时间为3S。得到所述用于净化PM2.5的超疏水驻极体滤材。所得滤材中纳米纤维层中的纤维直径为200-600nm，纤维层克重为2g/m2，表面静电势为3500V，对0.3μm粒子的过滤效率为99.01％，压力降18Pa，疏水角152°。
(5)超疏水驻极体滤材在净化PM2.5粒子达到饱和时，取下驻极体滤材，在如图3所示的高压电场中清洁再生。首先通入与粒子电荷相同的高压电势10KV，正负电极间距20mm，处理时间10S，由于排斥作用粒子会从滤材上脱落，实现对滤材的清洁。为提高净化效果，同时通风进行吹扫。清洁好的滤材再利用图2的装置喷射，喷射时间3S。喷完后再次放入高压电场中，调换高压电场的正负极，同样的，高压电势10KV，正负电极间距20mm，处理时间10S，再生完成，再次进行净化工作。
实施例2
本实施例的一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法，具体步骤为：
(1)将聚偏氟乙烯粉末置于60℃的真空烘箱中干燥2h。
(2)用电子天平准确称取9g N-N二甲基甲酰胺和9g丁酮置于50mL烧杯当中，然后称取0.2g钛酸钡(纯度99.9％，平均粒径<100nm)置于上述混合溶剂中，用超声震荡仪震荡2h，取出烧杯，用电子天平准确称取2g干燥好的聚偏氟乙烯粉末置于烧杯中，烧杯放在磁力搅拌器上搅拌6h，配制成均匀并且稳定的含钛酸钡纳米粒子的聚偏氟乙烯溶液；
(3)使用图1所示的静电纺丝设备进行电纺，将剪裁好的无纺布，克重为180g/m2，厚度为3.5mm，黏在转筒接收器上，调节静电纺丝参数，转筒接收速度25r/min，推注系统的平移速度为60mm/min，接收距离为12cm，静电高压为15KV，推注速度为1mL/h。得到驻极体纳米纤维层。
(4)配制低表面能溶液，准确量取100mL甲醇，向其中滴加6滴十六烷基三甲氧基硅烷，静置2h。把配制好的溶液倾倒入图2所示的喷涂装置中，对驻极体纳米纤维层表面进行低表面能溶液修饰，喷射时间为3S。得到所述用于净化PM2.5的超疏水驻极体滤材。所得滤材中纳米纤维层中的纤维直径为100-500nm，纤维层克重为2.75g/m2，表面静电势为2900V，对0.3μm粒子的过滤效率为99.56％，压力降16Pa，疏水角154°。
(5)超疏水驻极体滤材在净化PM2.5粒子达到饱和时，取下驻极体滤材，在如图3所示的高压电场中清洁再生。首先通入与粒子电荷相同的高压电势12KV，正负电极间距30mm，处理时间8S，由于排斥作用粒子会从滤材上脱落，实现对滤材的清洁。为提高净化效果，同时通风进行吹扫。清洁好的滤材再利用图2的装置喷射，喷射时间3S。喷完后再次放入高压电场中，调换高压电场的正负极，同样的，高压电势12KV，正负电极间距30mm，处理时间8S，再生完成，再次进行净化工作。
实施例3
本实施例的一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法，具体步骤为：
(1)将聚丙烯腈树脂粉末置于60℃的真空烘箱中干燥2h。
(2)用电子天平准确称取26.7g N-N二甲基甲酰胺置于50mL烧杯当中，然后称取0.3g氮化硅(纯度95％，平均粒径85nm)置于上述溶剂中，用超声震荡仪震荡2h，取出烧杯，用电子天平准确称取3.3g干燥好的聚丙烯腈粉末置于烧杯中，烧杯放在磁力搅拌器上搅拌8h，配制成均匀并且稳定的含氮化硅纳米粒子的聚丙烯腈溶液；
(3)使用图1所示的静电纺丝设备进行电纺，将剪裁好的无纺布克重为200g/m2，厚度为4mm，黏在转筒接收器上，调节静电纺丝参数，转筒接收速度25r/min，推注系统的平移速度为60mm/min，接收距离为20cm，静电高压为20KV，推注速度为1mL/h。得到驻极体纳米纤维层。
(4)配制低表面能溶液，准确量取100mL甲醇，向其中滴加6滴硬脂酸，静置2h。把配制好的溶液倾倒入图2所示的喷涂装置中，对驻极体纳米纤维层表面进行低表面能溶液修饰，喷射时间为3S。得到所述用于净化PM2.5的超疏水驻极体滤材。所得滤材中纳米纤维层中的纤维直径为200-600nm，纤维层克重为3.25g/m2，表面静电势为3100V，对0.3μm粒子的过滤效率为99.67％，压力降18Pa，疏水角151°。
(5)超疏水驻极体滤材在净化PM2.5粒子达到饱和时，取下驻极体滤材，在如图3所示的高压电场中清洁再生。首先通入与粒子电荷相同的高压电势18KV，正负电极间距25mm，处理时间8S，由于排斥作用粒子会从滤材上脱落，实现对滤材的清洁。为提高净化效果，同时通风进行吹扫。清洁好的滤材再利用图2的装置喷射，喷射时间3S。喷完后再次放入高压电场中，调换高压电场的正负极，同样的，高压电势18KV，正负电极间距25mm，处理时间8S，再生完成，再次进行净化工作。
实施例4
本实施例的一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法，具体步骤为：
(1)将聚碳酸酯粉末置于60℃的真空烘箱中干燥2h。
(2)用电子天平准确称取27g二氯甲烷置于50mL烧杯当中，然后称取0.3g二氧化钛(纯度99.8％，平均粒径40nm)置于上述溶剂中，用超声震荡仪震荡3h，取出烧杯，用电子天平准确称取3g干燥好的聚碳酸酯粉末置于烧杯中，烧杯放在磁力搅拌器上搅拌6h，配制成均匀并且稳定的含二氧化钛纳米粒子的聚碳酸酯溶液；
(3)使用图1所示的静电纺丝设备进行电纺，将剪裁好的无纺布，克重为300g/m2，厚度为4.5mm，黏在转筒接收器上，调节静电纺丝参数，转筒接收速度25r/min，推注系统的平移速度为60mm/min，接收距离为18cm，静电高压为18KV，推注速度为1mL/h。得到驻极体纳米纤维层。
(4)配制低表面能溶液，准确量取100mL无水乙醇，向其中滴加6滴1H,1H,2H,2H-全氟烃基三氯硅烷，静置2h。把配制好的溶液倾倒入图2所示的喷涂装置中，对驻极体纳米纤维层表面进行低表面能溶液修饰，喷射时间为3S。得到所述用于净化PM2.5的超疏水驻极体滤材。所得滤材中纳米纤维层中的纤维直径为100-400nm，纤维层克重为1.8g/m2，表面静电势为2500V，对0.3μm粒子的过滤效率为99.46％，压力降14Pa，疏水角156°。
(5)超疏水驻极体滤材在净化PM2.5粒子达到饱和时，取下驻极体滤材，在如图3所示的高压电场中清洁再生。首先通入与粒子电荷相同的高压电势15KV，正负电极间距40mm，处理时间10S，由于排斥作用粒子会从滤材上脱落，实现对滤材的清洁。为提高净化效果，同时通风进行吹扫。清洁好的滤材再利用图2的装置喷射，喷射时间3S。喷完后再次放入高压电场中，调换高压电场的正负极，同样的，高压电势15KV，正负电极间距40mm，处理时间8S，再生完成，再次进行净化工作。
实施例5
本实施例的一种用于净化PM2.5的超疏水驻极体滤材的制备及活化方法，具体步骤为：
(1)将聚醚酰亚胺粉末置于60℃的真空烘箱中干燥2h。
(2)用电子天平准确称取10g N,N-二甲基甲酰胺和10g甲基吡咯烷酮置于50mL烧杯当中，然后称取0.25g二氧化硅(纯度99.5％，平均粒径15nm)置于上述混合溶剂中，用超声震荡仪震荡3h，取出烧杯，用电子天平准确称取5g干燥好的聚醚酰亚胺粉末置于烧杯中，烧杯放在磁力搅拌器上搅拌6h，配制成均匀并且稳定的含二氧化硅纳米粒子的聚醚酰亚胺溶液；
(3)使用图1所示的静电纺丝设备进行电纺，将剪裁好的无纺布，克重为325g/m2，厚度为4.7mm，黏在转筒接收器上，调节静电纺丝参数，转筒接收速度25r/min，推注系统的平移速度为60mm/min，接收距离为15cm，静电高压为20KV，推注速度为1mL/h。得到驻极体纳米纤维层。
(4)配制低表面能溶液，准确量取100mL无水乙醇，向其中滴加6滴1H,1H,2H,2H-全氟烃基三氯硅烷，静置2h。把配制好的溶液倾倒入图2所示的喷涂装置中，对驻极体纳米纤维层表面进行低表面能溶液修饰，喷射时间为3S。得到所述用于净化PM2.5的超疏水驻极体滤材。所得滤材中纳米纤维层中的纤维直径为300-800nm，纤维层克重为3.65g/m2，表面静电势为3000V，对0.3μm粒子的过滤效率为99.23％，压力降16Pa，疏水角153°。
(5)超疏水驻极体滤材在净化PM2.5粒子达到饱和时，取下驻极体滤材，在如图3所示的高压电场中清洁再生。首先通入与粒子电荷相同的高压电势15KV，正负电极间距15mm，处理时间20S，由于排斥作用粒子会从滤材上脱落，实现对滤材的清洁。为提高净化效果，同时通风进行吹扫。清洁好的滤材再利用图2的装置喷射，喷射时间3S。喷完后再次放入高压电场中，调换高压电场的正负极，同样的，高压电势15KV，正负电极间距15mm，处理时间20S，再生完成，再次进行净化工作。
上述实施例为本发明较佳的实施方式，但本发明的实施方式并不受上述实施例的限制，其它的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。

Claims (8)

1.一种用于净化PM2.5的超疏水驻极体滤材的制备方法，其特征在于包括如下制备步骤：
(1)将含量为0.5-5wt.％的一种或几种无机驻极体纳米粒子加入到溶剂当中，超声震荡分散均匀，再向其中加入质量分数为5-25wt.％的聚合物，搅拌溶解均匀，得到含无机驻极体纳米粒子的聚合物溶液；
(2)将步骤(1)所得聚合物溶液通过静电纺丝技术制备于无纺布上，得到驻极体纳米纤维层；
(3)将低表面能物质溶于溶剂中，得到低表面能溶液，然后将其喷涂到步骤(2)所得驻极体纳米纤维层表面进行表面修饰，得到所述用于净化PM2.5的超疏水驻极体滤材；
步骤(3)中所述低表面能物质和溶剂分别对应如下：
硬脂酸：乙醇；
十六烷基三甲氧基硅烷：甲醇；
1H,1H,2H,2H-全氟烃基三乙氧基硅烷：乙醇；
1H,1H,2H,2H-全氟烃基三氯硅烷：乙醇。
2.根据权利要求1所述的一种用于净化PM2.5的超疏水驻极体滤材的制备方法，其特征在于：所述无机驻极体纳米粒子为二氧化硅、二氧化钛、钛酸钡或氮化硅；所述的聚合物是指聚偏氟乙烯、聚氯乙烯、聚丙烯腈、聚碳酸酯、聚醚酰亚胺、聚苯乙烯或聚氨酯；所述的溶剂是指N-N二甲基甲酰胺、丁酮、四氢呋喃、二氯甲烷和甲基吡咯烷酮中的一种或两种以上的混合。
3.根据权利要求2所述的一种用于净化PM2.5的超疏水驻极体滤材的制备方法，其特征在于所述聚合物和溶剂分别对应如下：
聚偏氟乙烯：N-N二甲基甲酰胺和丁酮质量比为1:1的混合溶剂；
聚氯乙烯：N-N二甲基甲酰胺和四氢呋喃质量比为1:1的混合溶剂；
聚丙烯腈：N-N二甲基甲酰胺；
聚碳酸酯：二氯甲烷；
聚醚酰亚胺：N-N二甲基甲酰胺和甲基吡咯烷酮质量比为1:1的混合溶剂；
聚苯乙烯：N-N二甲基甲酰胺和四氢呋喃质量比为3:1的混合溶剂；
聚氨酯:丁酮。
4.根据权利要求1所述的一种用于净化PM2.5的超疏水驻极体滤材的制备方法，其特征在于：步骤(2)中所述静电纺丝的工艺条件为：电压10-30KV，接收距离5-25cm，注射速度1-5mL/h，温度0-35℃，相对湿度0-70％。
5.一种用于净化PM2.5的超疏水驻极体滤材，其特征在于：通过权利要求1～4任一项所述的方法制备得到，所述滤材为无纺布和超疏水驻极体纳米纤维的两层结构。
6.根据权利要求5所述的一种用于净化PM2.5的超疏水驻极体滤材，其特征在于：所述无纺布的克重为100-350g/m2，厚度为1-10mm；纳米纤维层的纳米纤维直径在100-900nm之间，纳米纤维层的克重为0.01-5g/m2，孔隙率≥85％，表面电势为1000V-4000V，疏水角大于150°。
7.权利要求5或6所述的一种用于净化PM2.5的超疏水驻极体滤材的活化方法，其特征在于包括如下步骤：
(1)清洁：当滤材净化PM2.5粒子达到饱和时，取下滤材，把滤材作为阻挡介质放入高压电场中，通入与粒子电荷相同的高压，通过与粒子电荷相互排斥达到清洁的效果；
(2)喷涂和再生：重新将低表面能溶液喷涂到滤材纤维表面进行表面修饰，将喷涂过后的滤材再次作为阻挡介质放入高压电场中，对调高压电场的正负极进行高压带电处理，使滤材重新带上电荷进行净化工作。
8.根据权利要求7所述的一种用于净化PM2.5的超疏水驻极体滤材的活化方法，其特征在于：所述清洁的过程中同时进行吹扫，颗粒物随着吹扫风带走；所述清洁过程和再生过程中高压为5-15KV，电极类型为板状，面积与滤材的面积相当，正负电极之间的间距为10-50mm，处理时间不低于5S。
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Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105920919B (zh) * 2016-05-17 2018-07-10 华南理工大学 一种用于净化pm2.5的超疏水驻极体滤材的制备及活化方法
CN106436316A (zh) * 2016-09-23 2017-02-22 安徽丰磊制冷工程有限公司 一种高耐磨的静电纺/驻极体复合纤维膜过滤材料及其制备方法
CN106192062A (zh) * 2016-09-23 2016-12-07 安徽丰磊制冷工程有限公司 一种高性能的静电纺/驻极体复合纤维过滤材料及其制备方法
CN106512556A (zh) * 2016-11-14 2017-03-22 安徽名杰净化科技有限公司 一种树枝状的静电纺/驻极体复合纳米纤维膜过滤材料及其制备方法
CN106512553A (zh) * 2016-11-14 2017-03-22 安徽名杰净化科技有限公司 一种酒石酸钠插层水滑石静电纺/驻极体复合纤维过滤材料及其制备方法
CN106435829A (zh) * 2016-11-14 2017-02-22 安徽名杰净化科技有限公司 一种含乙烯基聚硅氧烷的静电纺/驻极体复合纤维过滤材料及其制备方法
CN106621563A (zh) * 2016-11-14 2017-05-10 安徽名杰净化科技有限公司 一种静电纺制备明胶/聚醚酰亚胺复合驻极体纤维过滤材料及其制备方法
CN106757483A (zh) * 2016-11-14 2017-05-31 安徽名杰净化科技有限公司 一种静电纺制备的驻极聚醚酰亚胺‑勃姆石复合纤维过滤材料及其制备方法
CN106757484A (zh) * 2016-11-14 2017-05-31 安徽名杰净化科技有限公司 一种用于净化pm2.5的静电纺/驻极体复合纤维过滤材料及其制备方法
CN106731229B (zh) * 2016-12-30 2019-01-15 东华大学 具备防水功能的驻极纳米纤维空气过滤材料及其制备方法
CN106835325B (zh) * 2017-02-16 2019-10-18 华南理工大学 一种电磁一体化纳米纤维滤材及其制备与活化方法
CN106964199B (zh) * 2017-05-04 2022-08-09 浙江金海高科股份有限公司 驻极体材料的液体充电方法和装置
CN108939942A (zh) * 2017-05-19 2018-12-07 南京理工大学 一种复合膜的制备方法
CN108166158B (zh) * 2018-02-24 2020-06-09 浙江西大门新材料股份有限公司 防水抗菌双层驻极电纺纳米纤维复合窗纱材料的制备方法
CN108465297A (zh) * 2018-03-09 2018-08-31 欧阳业东 一种用于空气净化的超疏水驻极体滤材的制备方法
CN108635966A (zh) * 2018-04-24 2018-10-12 华中科技大学 一种纳米纤维薄膜过滤材料的制备方法及其产品
CN108823806A (zh) * 2018-06-29 2018-11-16 南通朝旭环保科技有限公司 用于空气过滤的静电纺丝微纳纤维材料
MX2021004499A (es) * 2018-10-22 2021-08-24 Shanghai Bixiufu Enterprise Man Co Ltd Sistema y método de retirada de polvo del aire.
CN109603303A (zh) * 2019-01-09 2019-04-12 江阴健发特种纺织品有限公司 一种含增能助剂的针刺静电棉过滤材料及其制备方法
CN110028741A (zh) * 2019-04-19 2019-07-19 国家纳米科学中心 一种热释电复合材料及其制备方法和应用
CN110258026B (zh) * 2019-07-22 2024-03-29 河南曼博睿新材料科技有限公司 一种能够长时间工作的连续静电纺丝制膜机
CN111249638B (zh) * 2019-11-20 2021-10-26 华南理工大学 一种基于全纤维驻极体发电机的高效防护口罩及其制备方法
CN110883038B (zh) * 2019-12-10 2024-04-19 北京师范大学 一种实验室用智能清洗装置
CN111235863A (zh) * 2020-03-12 2020-06-05 上海市纺织科学研究院有限公司 一种芳砜纶驻极体过滤材料的制备方法
JP7440163B2 (ja) * 2021-04-21 2024-02-28 廣瀬製紙株式会社 微細繊維集合体の製造方法及び製造装置
CN114535026B (zh) * 2022-01-17 2023-05-30 中国人民解放军国防科技大学 一种高鲁棒性仿荷叶结构超疏水涂层及其制备方法、应用
CN114504951B (zh) * 2022-01-24 2023-09-22 华南理工大学 一种可循环使用驻极体过滤膜及其制备方法、清洗和电荷再生方法
CN114538691B (zh) * 2022-03-14 2023-04-07 宏源防水科技集团有限公司 一种水性防水涂料废水处理工艺
CN115262058B (zh) * 2022-08-05 2023-10-17 南通纬和纺织科技有限公司 一种导湿快干型多层散热纺织面料的制备方法
US20240052525A1 (en) * 2022-08-12 2024-02-15 City University Of Hong Kong Electrospun Radiative Cooling Textile

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000038819A1 (en) * 1997-07-18 2000-07-06 Rypos, Inc. Self-cleaning and self-sealing particle filter
US7057023B2 (en) * 2002-01-11 2006-06-06 Nexia Biotechnologies Inc. Methods and apparatus for spinning spider silk protein
US20060094320A1 (en) * 2004-11-02 2006-05-04 Kimberly-Clark Worldwide, Inc. Gradient nanofiber materials and methods for making same
JP4753609B2 (ja) * 2005-04-11 2011-08-24 株式会社リコー エレクトレットおよびその製造法
US20100018641A1 (en) * 2007-06-08 2010-01-28 Kimberly-Clark Worldwide, Inc. Methods of Applying Skin Wellness Agents to a Nonwoven Web Through Electrospinning Nanofibers
DE102008047552A1 (de) 2008-09-16 2010-04-08 Carl Freudenberg Kg Elektretfilterelement und Verfahren zu dessen Herstellung
EP2194549A1 (en) * 2008-12-08 2010-06-09 Sony Corporation A method of producing an electret material
WO2011049879A1 (en) * 2009-10-20 2011-04-28 Georgia Tech Research Corporation Shape memory polymers and process for preparing
CN101905101B (zh) 2010-07-30 2012-03-21 杭州电子科技大学 一种熔喷聚丙烯驻极体过滤材料的制备方法
US20130122773A1 (en) * 2011-11-16 2013-05-16 Sanjay Wahal Nonwoven Materials from Polymer Melt Filaments and Apparatuses and Methods Thereof
US20150101979A1 (en) * 2012-04-10 2015-04-16 Cornell University Stabilized nanofibers, methods for producing, and applications thereof
US9610588B2 (en) 2013-10-21 2017-04-04 E I Du Pont De Nemours And Company Electret nanofibrous web as air filtration media
CN103938432B (zh) * 2014-03-28 2016-04-06 中国林业科学研究院林产化学工业研究所 具有微纳结构的超疏水纤维素材料的制备方法
CN104289042B (zh) * 2014-09-05 2016-04-20 东华大学 一种静电纺纳米纤维驻极过滤材料及其制备方法
CN104480423B (zh) * 2014-11-20 2016-11-30 中国科学院宁波材料技术与工程研究所 一种利用超音速电弧喷涂制备超疏水涂层的方法
CN104759162A (zh) * 2015-01-27 2015-07-08 北京银河之舟环保科技有限公司 一种电介质过滤材料的荷电再生的装置及方法
CN104785018B (zh) * 2015-03-23 2016-04-27 博裕纤维科技（苏州）有限公司 一种pvdf纳米纤维多功能空气过滤材料及制备方法
CN105920919B (zh) * 2016-05-17 2018-07-10 华南理工大学 一种用于净化pm2.5的超疏水驻极体滤材的制备及活化方法

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