碱式硫酸锆作为交联剂提高羽绒蓬松度的工艺及性能研究

Study on technology and properties of improving the bulkiness of the down fibers by crosslinking agent of alkaline zirconium sulfate

由于羽绒纤维具有轻盈、柔软和保暖等特点,在日常生活中得到了广泛应用.蓬松度是衡量羽绒纤维保暖性最重要的指标.然而,直接从动物身上获得羽绒,其蓬松度往往不符合标准.本文以碱化硫酸锆作为蓬松剂,对羽绒纤维进行交联处理来提升羽绒的蓬松度,研究了其在交联过程中的最佳工艺参数及交联后羽绒纤维的物理机械性能.结果表明,在碱化硫酸锆用量3%,鞣制pH4.0,交联温度50℃的工艺条件下,交联后的羽绒具有最佳的蓬松效果.其蓬松度提高了25%,断裂伸长率提高了26.8%,羽绒纤维的耐热稳定性明显提高.

Because of its lightness,softness and warmth,down fiber has been widely used in our daily life.The fluffiness is the most important index to measure the warmth retention of down fibers.However,the fluffiness of down fibers obtained directly from animals often does not meet the standard.In this paper,alkaline zirconium sulfate was used as fluffing agent to cross-link down fibers to improve the fluffiness.The optimum process parameters and the physical mechanical properties of down fibers after crosslinking were studied.The results showed that the crosslinking down had the best fluffy effect under the conditions of 3%alkaline zirconium sulfate,tanning pH 4.0 and crosslinking temperature 50℃.Its fluffy degree increased by 25%,elongation at break increased by 26.8%,and the thermal stability of down fibers improved significantly.