http://nopr.niscair.res.in/handle/123456789/1604 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/1623 Title: Tensile and tearing properties of PVC coated biaxial warp knitted fabrics under biaxial loads <br/> <br/>Authors: Luo, Yixi; Hu, Hong; Fangueiro, Raul <br/> <br/>Abstract: The tensile and tearing behaviour of biaxial warp-knitted fabrics made with polyester fibre and coated with PVC under biaxial tensile loads has been studied. The typical tensile and tearing load-extension curves under biaxial tensile loads are presented and discussed. The failure mechanism of samples, in particular, by evaluation of the influence of crack length and direction under biaxial tensile loads is observed and analysed. The results show that the tensile properties of biaxial warp knitted fabrics coated with PVC depend on the yarn linear density, the densities of insertion and stitch yarns, the regularity of yarn tension during knitting and the quality of coated fabric. The pre-cracked tearing strength decreases with the increase in initial crack length and the maximum extension supported by a sample is increasing with the initial crack orientation. <br/> <br/>Page(s): 146-150 http://nopr.niscair.res.in/handle/123456789/1618 Title: Influence of material and process parameters on the inter- fibre cohesion in ring-spun yarns <br/> <br/>Authors: Gokarneshan, N; Subramaniam, V; Anbumani, N <br/> <br/>Abstract: The inter-fibre cohesion phenomenon is an important aspect to be considered, as it directly affects the yarn strength/tenacity and indirectly affects the productivity in ring spinning. Also, inter-fibre cohesive forces influence the individual fibre mobility in yarn structure and the yarn mobility in fabric structure. This paper critically reviews the past and recent research works on the inter-fibre cohesion and provides scope for further research in this area. <br/> <br/>Page(s): 203-212 http://nopr.niscair.res.in/handle/123456789/1617 Title: Low velocity impact behaviour of textile reinforced composites <br/> <br/>Authors: Padaki, Naveen V; Alagirusamy, R; Deopura, B L; Sugun, B S; Fangueiro, Raul <br/> <br/>Abstract: An attempt has been made to summarize the research progress on low velocity drop weight impact properties of textile reinforced composites. The paper mainly reports the impact test parameters and textile reinforcement along with matrix, interphase effects, impact failure modes and major evaluation techniques for impact damage analyses such as ultrasonic scanning and retention of strength after impact. <br/> <br/>Page(s): 189-202 http://nopr.niscair.res.in/handle/123456789/1616 Title: Thermodynamic and kinetic studies of adsorption of berberine on silk <br/> <br/>Authors: Ke, Gui-zhen; Xu, Wei-lin; Yu, Wei-dong <br/> <br/>Abstract: Dyeing properties of silk fabric with berberine have been studied in terms of the thermodynamic and kinetic factors, including standard affinity, enthalpy change, entropy change, dyeing rate, diffusion coefficient and activation energy of the diffusion. The results show that the adsorption isotherm of berberine on silk fabric belongs to Langmuir type. The analysis of dyeing thermodynamics shows that the adsorption of berberine on silk fabric is an exothermic process. When the fabric is dyed at higher temperature, the lower affinity and less dye uptake are obtained; however, the higher temperature increases the initial dyeing rate and diffusion coefficient. <br/> <br/>Page(s): 185-188