Papers by Author: Jin Ping Guan

Abstract: In this paper, a flame retardant dimethyl-2-(methacryloyloxyethyl) phosphate (DMMEP) was applied onto wool fabrics by graft copolymerization technique in water media. The paper discussed the technological conditions of the formation of wool-g-DMMEP such as the pH value of reaction, reaction temperature and time etc. The weight gain of wool fabrics was chosen to be the indicator of optimized technological condition. The results showed that DMMEP treated wool fabrics have high limiting oxygen index(LOI). Wool fabric with weight gain 4.27% has high LOI 34.6%, which is hard ignited in air. Char residues of DMMEP treated wool fabrics are more rigid and solid.

Abstract: In this paper, a flame retardant methacryloyl ethyl diethyl phosphoric amide (PN) containing nitrogen-phosphor for textiles was synthesized from phosphorus trichloride, absolute ethylalcohol, carbon tetrachloride, monoethanol amine, methacryloyl chloride. PN oil-in-water emulsion was grafted onto silk fabric by Atom Transfer Radical Polymerization (ATRP) method. The grafting technological parameters were investigated. The flame retardancy property of the treated silk fabric was indicated by LOI value, char length, after flame and after glow time.

Abstract: In this paper, four kinds of silk georgettes with different density were chosen as samples. The flame retardant formaldehyde-free vinyl phosphate dimethyl-2-(methacryloyloxyethyl) phosphate (DMMEP) was grafted onto them by graft copolymerization technique. Some tests such as Limiting Oxygen Index (LOI), vertical flammability, wrinkle resistance and color fastness were examined. Through the discussion and analysis of the experiment results, the properties of original and treated fabrics were compared and suggestions were given for the flame retardant process and garment design.

Abstract: The past decade has been marked by a growing interest in the development and use of ecologically friendly dyes. In this paper, a novel non-azobenzene ligand, (Z)-4-amino-2-(4-carboxyphenyl)-5-(hydroxyimino)-2,5-dihydro-1H-imidazole 3-oxide, was synthesized by the reaction of 3,4-diaminoglyoxime with 4-formylbenzoic acid, and characterized by IR, 1H-NMR and MS. The values of the 1H-NMR spectral results were in harmony with previously reported (Z)-4-amino-5-(hydroxyimino)-2,5-dihydro-1H-imidazole 3-oxide derivatives. Its brown ferrous complex has been prepared conveniently and applied to dye silk fabric. From the IR spectra of the complex, the stretching vibration for the ring of imidazole was disappeared, and the C=N absorption was lower than that of the ligand, which indicated that the N,N-chelate coordination bond was formed and the participation of the C=N-OH group in metal coordination. The colour fastness values of the dyed silk fabric to light, washing and rubbing were measured. The washing fastness of dyed silk fabric can reach 4 grade or 4-5 grade; the rub fastness 3-5 grade; the light fastness 3 grade.

Abstract: In this paper, a hydroxyl-functional organophosphorus oligomer (HFPO) was introduced as a formaldehyde-free flame retardant into silk fabric, using 1, 2, 3, 4-butanetetracarboxylic acid (BTCA) as crosslinking agent. But HFPO bonded onto silk fabric is not theoretically increased with the increase of BTCA concentration. Triethanolamine (TEA) was applied to improve the HFPO fixation onto silk fabric. The paper still evaluated the flammability and physical properties of the silk fabric treated with HFPO/BTCA/TEA system. The treated silk fabric demonstrated a high level of flame retardancy with modest loss in fabric tensile strength. Microscale combustion calorimetry(MCC) testing results indicated that HFPO/BTCA/TEA system treated silk fabric has much lower heat release rate than that of control fabric.

Abstract: Color fastness is a very important indicator to evaluate the quality of textiles. At present, color fastness is tested mainly according to China National Standard (GB/T series) and American Association of Textile Chemists and Colorists (AATCC series). Different standards give different quality results for the same sample. The paper mainly compared the differences of color fastness to water, perspiration and rubbing between GB/T series and AATCC series. Color fastness to water tested according to GB/T5713-1997 was different from AATCC107-2007 in sample size, liner fabric, and time for keeping constant temperature with 4h and 18h, respectively. The differences of color fastness to perspiration of GB/T3922-1995 and AATCC15-2007 were sample size, liner fabric, component and pH value of perspiration, liquor ratio and time for keeping constant temperature. Of which pH value of perspiration showed remarkable difference, GB/T3922-1995 specified two kinds of perspiration with pH value 5.5 and 8.0，while AATCC15-2007 specified pH value with 4.3. Color fastness to crocking stands of GB/T3920-2008 and AATCC8-2007 had little difference, mainly in the moisture of rubbing fabric.