Hydrophilic Modification Of Polyacrylonitrile Fiber And Application Of SAF Non-woven Fabric

In this study, the Super-absorbent polyacrylonitrile fiber are prepared in the organic solvents ; allow polyacrylonitrile yarn in alkaline hydrolysis of organic solvents, then by cross-linking treatment,This fiber has a strong water-absorbent, water-retention capacity and non-irritating and has a certain strength, nonwovens with Super-absorbent-fiber were Prepared by Thermal Bonding.Studies have shown that mixture with isopropyl alcohol and water, When water was control-ed to be 10% in the mixed organic solvents, alkali was controlled to be 0.1 wt% in the mixed organic solvent, acrylic fiber was controlled to be 5wt% in the mixed organic solvents, hydrolysis temperature was about 85°C for 3 hours, after crosslinking treatment in the solution containing high-priced metal ions, the reaction time was controlled at 1h, Crosslinker was controlled to be 0.03% of fiber weight, drying at 80℃, The fiber showed good performance during this procedure research on the three factors in the Hydrolysis reaction, we found that concentration, temperature and time have a certain amount of equivalent effect.The study found that The absorbent non-woven materials can be made of the super-absorbent fibers and a certain percentage of normal-fiber through blending,neting,reinforcement and cut process, properties, water absorption depending on the ratio of super-absorbent fibers, material capability can be required to meet the different working conditions, can be widely used in the field of medical, health care, horticulture and industrial fabrics etc; the characteristic of such materials is simple-technics, low-cost, non-polluting, biodegradable.In addition, The influences of the crosslinking conditions and hydrolyzing Processes on the chemical structure of the fiber, the surface structure of the fiber, assembling state of the moleculars in the fiber and the mechanic Properties of the fiber were also discussed using FTIR, SEM etc; mechanical properties, water absorption capability,the infiltration capability of its absorbent non-woven materials also be researched and analysis.The range of the Water Absorbency from the non-woven material which was made depending on the different ratio is 10～150. The strength of the material,Absorbent and Retention capability may content the requests of different working conditions,they can be used in the areas of medical, health care,gardening and industrial textiles etc. Especially in the three areas of Ion-exchangetype of material,Wire /cable coating materials, Absorbing core layer of health material.