@article{zheng_zhang_zheng_2017, title={Optimization of an ecofriendly dyeing process in an industrialized supercritical carbon dioxide unit for acrylic fibers}, volume={87}, ISSN={["1746-7748"]}, DOI={10.1177/0040517516659379}, abstractNote={The feasibility of using supercritical CO2 as a cleaning dyeing medium to dye acrylic fibers was investigated on an industrialized unit. The influence of dyeing temperature, dyeing pressure, dyeing time, and dye concentration on the K/S values of acrylic fibers was examined using the fractional factorial design of experiments. A second-order polynomial model was established to analyze the interactions between distinct parameters and to obtain the optimal K/S values. The results showed that an excellent dyeing effect of acrylic fibers was obtained in the industrialized supercritical CO2 unit, but the dyeing effect was easily affected by variations of the dyeing parameters. In the experimental range, a calculated K/S value could be up to 6.14 with the dyeing temperature of 100℃, dyeing pressure of 26 MPa, dyeing time of 60 min, and dye concentration of 3%. The dyed acrylic fibers presented good color fastness to washing, rubbing, and light. Furthermore, a commercially acceptable levelness and reproducibility for acrylic fibers were obtained in the supercritical CO2 dyeing process.}, number={15}, journal={TEXTILE RESEARCH JOURNAL}, author={Zheng, Huanda and Zhang, Juan and Zheng, Laijiu}, year={2017}, month={Sep}, pages={1818–1827} }
 @article{huanda_juan_bing_qufu_laijiu_2015, title={An Investigation for the Performance of Meta-aramid Fiber Blends Treated in Supercritical Carbon Dioxide Fluid}, volume={16}, ISSN={["1875-0052"]}, DOI={10.1007/s12221-015-1134-2}, number={5}, journal={FIBERS AND POLYMERS}, author={Huanda, Zheng and Juan, Zhang and Bing, Du and Qufu, Wei and Laijiu, Zheng}, year={2015}, month={May}, pages={1134–1141} }
 @article{zheng_zhang_du_wei_zheng_2015, title={Effect of treatment pressure on structures and properties of PMIA fiber in supercritical carbon dioxide fluid}, volume={132}, ISSN={["1097-4628"]}, DOI={10.1002/app.41756}, abstractNote={The effects of treatment pressure on the structures and properties of PMIA fiber were investigated by Scanning electron microscopy, Dynamic wetting measurements, Fourier transform infrared spectrometry, X-ray diffraction, thermogravimetric analysis, and mechanical properties test technology in supercritical carbon dioxide. The results indicated that the surface morphology, the water contact angle, the interaction of macromolecules, the crystal structure, the thermal property, and tensile strength of PMIA fibers were changed during supercritical carbon dioxide treatment, particularly the surface morphology and the wettability of fiber changed the most obviously with the increase of treatment pressure. Furthermore, the thermal property and tensile strength of treated PMIA fiber sample were improved in comparison with those of untreated sample. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41756.}, number={14}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, author={Zheng, Huanda and Zhang, Juan and Du, Bing and Wei, Qufu and Zheng, Laijiu}, year={2015}, month={Apr} }