Publications by authors named "Zhenpei He"

Article Synopsis
  • Limited research has been conducted on how the structure of quaternary ammonium salts (QAS) influences the electrostatic attraction and reactivity of cationic cotton, affecting dye behavior.
  • Increasing the alkyl chain length of QAS from 4 to 18 carbon atoms significantly enhances the positive charge on modified cotton, improving electrostatic attraction to reactive dyes, but slows molecular mobility, which can hinder dye diffusion.
  • Cationic cotton treated with a specific QAS (CT-8) demonstrates high levels of dye uptake (91.84%), optimum K/S values (13.10), and effective dye fixation (88.38%), indicating better dyeing performance.
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The N generation technique is a promising method for enhancing oil recovery (EOR) and blockage removal. Conventionally, N is generated through the redox reactions of sodium nitrite (NaNO) and ammonium chloride (NHCl). The effect of several parameters on N production was studied in this work.

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