种基于季铵化聚乙烯醇类全互穿膜的制备方法及其应用

• Format: Patent
• Language: Chinese
• Published: 06.07.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

本发明涉及种基于季铵化聚乙烯醇类全互穿膜的制备方法，将季铵化聚乙烯醇溶解于去离子水中，将Gemini表面活性剂与丙烯酰胺单体用去离子水解后，加入到季铵化聚乙烯醇溶液中；然后加入过硫酸钾，70-90C条件下回流反应，然后超声波处理；再加入戊二醛，机械搅拌后超声波处理，将溶液倒在水平玻璃板上，蒸发溶剂成阴离子交换膜。本发明在复合膜中引入带正电的表面活性剂，有利于提高膜表面的吸附活性位点，从而提高复合膜吸附量。全互穿结构的形成，有助于降低膜结构的溶胀度，并提高膜在废水处理过程中的稳定性。 The invention relates to a preparation method of a full-interpenetrating membrane based on quaternized polyvinyl alcohols. Quaternized polyvinyl alcohol is dissolved in deionized water, and a Gemini surfactant and an acrylamide monomer are hydrolyzed with deionized water and then added to a quaternized polyvinyl alcohol solution; potassium persulfate is added, the mixture has a backflow reaction at the temperature of 70 DEG C-90 DEG C, and then ultrasonic treatment is performed; glutaraldehyde is added, the mixture is mechanically stirred, ultrasonic treatment is performed, the solution is poured on a horizontal glass plate, a solvent is evaporated, and an anion exchange membrane is formed. The surfactant with positive charge is introduced to the composite membrane, and