Please wait.'

Page is loading'


Home  > Raw materials & technologies  > Technologies  > Preparation and hydrophobicity improvement...

Tuesday, 12 November 2019
pdf
Raw materials & technologies, Technologies

Preparation and hydrophobicity improvement of fluorinated poly (styrene-acrylate) / ferrocene composites

Monday, 24 June 2019

A recent study examines the hydrophobicity improvement of fluorinated poly (styrene-acrylate) / ferrocene composites. The WAC of composite films increased from 45 to 121° before and after oxidation.

Fluorine containing poly (styrene-acrylate) / ferrocene (FPSA / Fc) composites were prepared by directly mixing FPSA latexes with ferrocene and ethanol co-solvent (symbol image). Image source: BillionPhotos.com– stock.adobe.com.
Fluorine containing poly (styrene-acrylate) / ferrocene (FPSA / Fc) composites were prepared by directly mixing FPSA latexes with ferrocene and eth...

For the study fluorine containing poly (styrene-acrylate) / ferrocene (FPSA / Fc) composites were prepared by directly mixing FPSA latexes with ferrocene and ethanol co-solvent. Vesicles were obtained while occurring oxidation of composite films, and ruptured to form micropores when carrying out heated process of oxidised films, resulting in increasing roughness and hydrophobicity of composite films.

TEM images confirmed that two kinds of structures including ferrocene aggregates and adsorbate latexes existed in composite latexes. The average particle size was decreased after addition of ferrocene. SEM and AFM photos indicated that vesicles and micropores were observed on the oxidised and heated composite films, respectively, and the improvement of surface roughness was subsequently occurred.

Oxidation increased the hydrophilicity of composite films

Water contact angle (WCA) results described that the oxidation had increased the hydrophilicity of composite films, in contrast, the rupture of vesicles had increased the hydrophobicity. The maximum WCA of composite film is up to 121° when the dosage of dodecafluoroheptyl methacrylate (DFMA) and ferrocene were 10.0 and 0.5 wt%, respectively. TGA curves demonstrated that the thermal stability was improved because of the addition of ferrocene and oxidation.

The study has been published in Progress in Organic Coatings, Volume 128.

top of page
Comments (0)
Add Comment

Post comment

You are not logged in

register