The Study On Composite Flame-retardants, Preparing Technology And Fire-resistant Performance Of The Flat Acrylic Fiber

Abstract: Based on the preparation technique of acrylic fiber using NaSCN as solvent and the study of single-component fire-resistant agents, a high-efficient composite Br-N-Sb flame-retarded agent was obtained and a new acrylic fiber with fire-resistant performance was developed and the fire-resistant mechanism was discussed. The main contents are as following:1. The study progress of the profile fibers in domestic and international field was reviewed and preparing technique of the flat acrylic fiber was summarized.2. The effect of different processing parameters on the profile degree of fibers, such as the rheological property of solution, spray extrusion flow rate, spinneret drafting rate, temperature, solidification condition, heat drawing, dry compact, steaming, oiling, and crisp were investigated and the preparation technique of flame-retardant acrylic fiber was optimized.3. Based on the preparation technology of acrylic fiber using NaSCN as solvent, we study the dissolvability, dispersibility and flame retardant performance of different single-component fire-resistant agents in raw material solution to explore new composite flame retardants.4. A high-efficient composed Br-N-Sb flame-retarded agent based on the preparation technique of acrylic fiber using NaSCN as solvent was obtained and its fire-resistant mechanism was discussed.