Properties of lyocell spinning solution with the addition of carbon black/latex composite

Carbon black/latex composites were prepared by the method of miniemulsion polymerization for use in coloration of lyocell. The encapsulation of carbon black with the latex was confirmed by transmission electron microscopy (TEM), Fourier transforms infrared spectra (FTIR) and thermogravimetric analyses (TGA). Experimental results showed that a dispersion of the carbon black/latex composite with excellent freeze-thaw stability was achieved when polymerization was performed with the addition of carbon black, ammonium persulfate (APS) and methyl methacrylate (MMA) at a mass ratio of 40:1:200. The carbon black/latex composite dispersion was shown to have excellent miscibility with lyocell spinning solution which enabled a cellulose membrane to be well prepared, and the carbon black/latex composite dispersion content of 3% was adequate to produce the cellulose membrane with maximum color strength. This study provides new insight into spun dyeing of lyocell with the carbon black/latex composite dispersion.