In this section, you can access to the latest technical information related to the FUTURE project topic.

Fully bio-based coating from chitosan and phytate for fire-safety and antibacterial cotton fabrics

In this study, a fully bio-based coating was constructed by layer-by-layer deposition of chitosan (CS) and ammonium phytate (AP), to obtain fire-safety and antibacterial cotton fabrics. With about 8% weight gains of CS/AP coatings, the treated cotton fabrics self-extinguished in the vertical burning test. The data obtained from cone calorimetry showed CS/AP/cotton had much lower smoke and heat production, which indicated the fire safety of the fabrics was significantly improved for the presence of CS/AP coatings. The flame-retardant mechanism of this system was finally proposed according to the analysis of gaseous products and char residues. What is more, CS/AP coatings had higher antibacterial activity in Gram-negative bacteria and did improve the tensile strength of cotton fabrics compared with AP coating. With its ease of operation and use of non-toxic chemicals, this fully bio-based coating can further offer a feasible flame-retardant and antibacterial solution of the inflammable natural fabrics.

» Author: Ping Li, Bin Wang, Yan-Yan Liu, Ying-Jun Xu, Zhi-Ming Jiang, Chao-Hong Dong, Lin Zhang, Yun Liu, Ping Zhu

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