CROSS-LINKED LIGNIN COATINGS PRODUCED BY UVLIGHT AND SF6 PLASMA TREATMENTS

Code: 210805693
Downloads
0
Views
25
Compartilhe
Título

CROSS-LINKED LIGNIN COATINGS PRODUCED BY UVLIGHT AND SF6 PLASMA TREATMENTS

Autores(as):
  • José Roberto de Souza Júnior

  • Joyce Rodrigues Araujo

  • Renata Antoun Simão

  • Braulio Soares Archanjo

DOI
  • DOI
  • 10.37885/210805693
    Publicado em

    03/09/2021

    Páginas

    176-193

    Capítulo

    12

    Resumo

    Lignin is one of the most abundant macromolecules in vascular plants and has been studied for many years. The reasons for the interest in it are its high availability and low cost, regarding that lignin is the main by-product of the paper pulping process, and also typically burned as fuel. Despite that, lignin has only a few industrial applications. In this study, we found a simple method for preparing well-defined lignin surfaces. Lignin was extracted from sugar cane bagasse by Soda polpation and its coatings were prepared using solutions with different solvents on various substrates (silicon wafers, paper, steel and glass) by spin-coating. Two methods were tested in order to promote cross-linking surface of lignin coatings: plasma treatment and ultraviolet radiation. Lignin coatings were then characterized by solubility tests, infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), atomic force microscopy (AFM), swelling rate test in toluene and contact angle measurements. Stable superhydrophobic lignin coatings were obtained using SF6 plasma as curing agent.

    Ler mais...
    Palavras-chave

    Coatings; Cross-linking; Lignin; Plasma; Superhydrophobicity; Surface modification.

    Licença

    Esta obra está licenciada com uma Licença Creative Commons Atribuição-NãoComercial-SemDerivações 4.0 Internacional.

    Licença Creative Commons

    O conteúdo dos capítulos e seus dados e sua forma, correção e confiabilidade, são de responsabilidade exclusiva do(s) autor(es). É permitido o download e compartilhamento desde que pela origem e no formato Acesso Livre (Open Access), com os créditos e citação atribuídos ao(s) respectivo(s) autor(es). Não é permitido: alteração de nenhuma forma, catalogação em plataformas de acesso restrito e utilização para fins comerciais. O(s) autor(es) mantêm os direitos autorais do texto.

    Este site utiliza cookies. Usamos cookies para personalizar conteúdo e anúncios, fornecer recursos de mídia social e analisar nosso tráfego. Ao continuar você concorda com a nossa política de utilização de cookies.

    Continuar