Antibacterial and acid and cationic dyeable bamboo cellulose (rayon) fabric on grafting
2012; Elsevier BV; Volume: 88; Issue: 4 Linguagem: Inglês
10.1016/j.carbpol.2012.02.005
ISSN1879-1344
Autores Tópico(s)Natural Fiber Reinforced Composites
ResumoBamboo is considered to be important biopolymer with useful applications in various fields including textiles. In the current study bamboo rayon fabric was grafted with a mixture of acrylic acid and acrylamide using potassium persulfate (KPS) as an initiator. The graft copolymerization parameters were optimized in terms of acrylic acid to acrylamide ratio, temperature, time, initiator concentration and monomer concentration. The grafted product was characterized using FTIR, TGA and SEM and further evaluated for properties like moisture regain and yellowness index. The ungrafted and grafted fabrics were then dyed using cationic and acid dyes. The grafted material showed improved dyeability towards both acid and cationic dyes with improvement in fastness properties. Ag+ ions adsorbed on grafted fabric, through treatment with AgNO3, were reduced into Ag(0) nanoparticles. Such fabric showed excellent antibacterial properties against both gram positive and gram-negative bacteria with durability of 50 washes.
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