Improvement of polyethylene fiber wettability and mechanical properties through an environmentally sustainable spinning process

Seyhan, Aybeniz; Günaydın, Beyza Nur; Polat, Yusuf; Kılıç, Ali; Demir, Ali; Avcı, Hüseyin

doi:10.1016/j.ijadhadh.2022.103250

Cited by 2 publications

(1 citation statement)

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“…The water contact angle for PE is 5° greater than 90°, meaning that its surface is strongly hydrophobic, as is expected. The measured angles are comparable to those reported in the literature, ranging from 90 to 100° for PE films [55][56][57][58][59]. In contrast, the value of the water contact angle for PE-BA is more than 10° lower than that of PE, suggesting a hydrophilic nature as it falls below 90°.…”

Section: Aluminum Benzoatessupporting

confidence: 85%

Polyethylene Film Surface Modification via Benzoic Acid Grafting

Grafia,

Barbosa

2024

Polymers

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A polyethylene (PE) film surface modification method is proposed via benzoic acid (BA) alkylation grafting to improve the surface affinity to polar substances. The procedure involves sequentially spraying AlCl3 and BA onto the heat-softened PE surface. The occurrence of the alkylation reaction was evaluated through comparative chemical, morphological, and thermal analyses. It was demonstrated that the grafting reaction of BA onto the PE film surface took place, limited to the surface layer, while preserving the bulk properties of PE. The reaction resulted in the formation of aluminum benzoate complexes, which improved the surface affinity to polar compounds. The impact of grafting on the surface properties of PE was further assessed by comparing the behavior of PE films treated with BA and untreated PE films when painted with watercolors. The PE film grafted with BA exhibited increased affinity towards watercolors, providing strong evidence of a change in surface polarity from hydrophobic to hydrophilic. These findings indicate that the proposed methodology effectively renders the PE surface paintable, even with non-toxic water-based inks, making it suitable for applications such as packaging.

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