Papers by Author: Hui Qin Li

Abstract: Nature provides readyanswers to scientific and technical problems and inspires us with a series of technologicalinnovations. The distribution of pigment in vivo inspired theprocess of fabric finishing. Naturalcompounds from plant waste was employed for textile processing in thisinvestigation and the method of dyeing and finishing simultaneous wasconstructed. Capacity and function of the process was evaluated through colour yield and fastness, antifungalactivity and UV –protection performance. Tawny colour was obtained in theprotein fabrics processed with the extracting solution of tea-stalk and Apocynum halm. The fastness properties of both tea and Apocynum dyed samplesare quite satisfactory for practical textile dyeing purposes, especially thewool fabrics processed with tea-stalk extracting solution. And the protein fabric samples treated with tea and Apocynum waste solutionshowed good inhibitory effect (>50%) against E.coli and S.aureus. UV protection level ofprotein fabrics were increased with the treatment by extracting solution of tea-stalkand Apocynum halm.

Abstract: Hybrid calcium carbonate (CaCO3)/poly(styrene sulfonate) (PSS) particle, as a template, was synthesized using colloidal crystallization with the presence of nitrate tetrahydrate (Ca(NO3)2•4H2O), sodium carbonate (Na2CO3) and PSS. Microcapsule was prepared by template-assisted layer-by-layer (LbL) technology in solutions of two oppositely charged polyelectrolytes, poly(styrenesulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) alternately, followed by dissolving the template with disodium ethylenediaminetetraacetate (EDTA). The release behavior of rhodamine B (RhB) from the microcapsules was examined and the rates of release at different pH were studied.

Abstract: Fabrics provide an attractive alternative for cell immobilization carrier. In this study, the relationship of weave structure of fabrics and the effects of cell immobilization was investigated. Several kinds of fabrics with different weave structure were designed and produced acting as cell immobilization carrier. Adsorptive capacity of the textile carriers with different weave structure was measured and the biodegradation rate of TA by cells absorbed on textile carriers was also investigated. It is showed that adsorptive capacity and stability was significantly affected by weave structure of fabric carriers. The result also indicated that the ability to TA degradation was also improved by cell immobilization.

Abstract: Rabbit hair is an important animal fiber in China, making up 90% of the total output in the world. Fuds is one of familiar problems in the processing of rabbit hair, which lead to plenty of waste fibers. Recently, there has been interest in converting protein fibers into powder to develop their new uses. This provides great opportunities for waste rabbit hair. In this study, rabbit hair powders have been produced and the structure and properties were characterized at multi-level. Surface morphology of rabbit hair powders was observed by scanning electron microscopy (SEM) and the majority of rabbit hair powders appear to be small fibrous particles. The FTIR spectrum of rabbit hair and rabbit hair powders was detected. Although no new chemical bonds were produced in the rabbit hair powders, the result showed that some absorbing peaks of rabbit hair powder become stronger than that of rabbit hair. Absorption of rabbit hair powders was also investigated. The result showed that rabbit hair powder had higher moisture retention rate than that of rabbit hair, wool fiber and cotton fiber. Moreover, rabbit hair powder showed remarkable sorption ability for metal ions. The characterization of rabbit hair powder will provide useful basal data for the further application of rabbit hair in novel areas.