Full-degradable composites reinforced by the low temperature treated cotton fabrics with enhanced strength and interfacial bonding

摘要: Abstract The improper disposal of vast discarded cotton fabrics results in environmental pollution and waste valuable cellulose resource. Full-degradable composites were hence developed from biodegradable matrices, poly (lactic acid) (PLA) acetate (CA), with the reinforcement treated by a low-temperature alkali/urea treatment. This treatment could provide compacter structure, 18.4% enhancement tensile strength, roughened fiber surface raised hydrophilicity. After treatment, displayed 9.7–10.1% strengths, 36.3–66.5% rise moduli, 24.7–39.62% increment flexural strengths 42.4–52.1% improvement moduli. Compared to PLA composites, fabric/CA higher improvements their properties due better interfacial bonding between hydrophilic CA matrix, which was proven 42.8% peeling strength. stronger adhesion also prevented invasion microorganism feculence, reduced degradation rate soil. However, nature made more vulnerable water. Considering low cost, saved resource, less pollution, acceptable for applications, approach this work possesses potential promote an environmentally friendly sustainable reuse process fabrics.