Study on Antifouling Performance of Single-walled Carbon Nanotubes Modified Electrode and Its Application in Determination of 5-Hydroxytryptamine

Cheng, Han; Lan, Jia-Feng; Wei, Guang-Han; Huang, Wei-Hua; Cheng, Jieke

doi:10.3724/sp.j.1096.2013.20997

Cited by 2 publications

(1 citation statement)

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“…Thermoplastic polymers, such as polyvinyl chloride [12,13], polyamide [14,15], cellulose acetate [16,17], and others [18][19][20][21], are widely used as membrane separation materials. However, thermoplastic polymer membranes are subject to a high degree of fouling, so it is imperative to improve their hydrophilicity [22][23][24][25]. Water-soluble resins are more hydrophilic than thermoplastic polymers.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Composite Ultrafiltration Membrane by Coating Urea Formaldehyde Resin on Filter Paper

Zhang

Shi

et al. 2020

Coatings

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Urea-formaldehyde resin (UFR), a thermosetting resin, is used to prepare ultrafiltration membranes because of its excellent mechanical properties and filtration performance. Herein, a porous ultrafiltration membrane is prepared by coating a mixture of UFR and carboxymethylcellulose (CMC) on the surface of filter paper via a facile acid-curing treatment method. CMC is used as a thickening agent, and hydrochloric acid is used as a curing agent to accelerate composite membrane formation. The mesoporous UFR is embedded in the large pores of the paper matrix by coating treatment, and the presence of CMC can decrease the flowability of the resin. The effects of UFR concentration, CMC dosage, and hydrochloric acid concentration on the performance of the composite ultrafiltration membrane are studied. The ultrafiltration membrane demonstrates a rejection rate of 85% and a pure water flux of 850 L/(m2·h) with the optimized resin concentration, CMC dosage, hydrochloric acid concentration, and coating amount at 30%, 20% (resin dry), 12%, and 250 g/m2, respectively.

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