咖啡碳纤维和纱线的性能研究

摘要

为满足市场对功能性咖啡碳纤维针织产品的需求，首先通过扫描电镜、红外光谱测试分析咖啡碳纤维的截面形态与成分；然后对咖啡碳纤维长丝纱的强度、条干均匀度、含湿量、耐热性以及耐酸碱性进行测试。结果表明，咖啡碳纤维的主要成分是涤纶，其中含有咖啡碳粉体；咖啡碳纤维长丝纱耐湿热性、干热性较好，耐酸不耐碱；纱线强力、断裂伸长率、条干均匀度均符合针织用纱的要求。%In order to meet the market demand of functional coffee carbon fiber knitted products , scanning electron microscopy and infrared spectrum method is used to test coffee carbon fiber cross‐section shape .A series of properties testing and analysis about strength ,evenness ,mois‐ture content ,heat resistance and acid and alkali resistance of coffee carbon fiber filament yarn are completed .T he results show that the main component of coffee carbon fiber is polyester , w hich contains coffee carbon particle .T he w et heat resistance and dry heat resistance of coffee carbon fiber filament yarn are both good ,and its acidic resistance is better than alkali resist‐ance .The yarn strength ,elongation at break and evenness of coffee carbon fiber filament yarn all meet the requirements of knitting yarn .