Ramie Fiber Modification Trials under Different Conditions

Abstract

The test studied three ways of modification effect for ramie fiber, included PVC coated, MMA graft and silane coupling. Also the diverse factors for modification were explored under the situations of hydrophilicity, biodegradability and parasitotropism. The results showed that: All modified ways for KH-570 silane coupling, PVC coated, and MMA graft could reduce bibulous rate of ramie fiber effectively, which PVC coated was best (10.42 %), while bibulous rate of MMA graft was 10.56 %. Both of all were lower than the bibulous rate of unmodified (4-5 %). Then soaked in conditions of distilled water, anaerobic sludge and anaerobic sludge, the mass loss unmodified were largest, loss of minimum were MMA grafting, MMA grafting and KH-570 coupling, with the mass loss rate were 11.67 %,21.23 % and 22.73%,respectively. With the situation of high salt concentration, the modified fiber degraded significantly that all of the degradation rate were lower than 8%. The biological properties of ramie fiber were effectively enhanced by modification way of MMA grafted, in aspects of hydrophilicity, biodegradability. Under the condition of MMA grafting, microbial growth and purifying effect, the service life of the fiber was prolonged efficacious.