碳纤维用Lyocell原丝的纤维素分子量及其分布

Molecular weight and molecular weight distribution of cellulose for producing Lyocell precursor for carbon fiber

使用凝胶渗透色谱法 (GPC) ,并以 0 .5 %LiCl/DMAc作为流动相、窄分布的聚苯乙烯为标样 ,分析了应用于不同领域的几种纤维素的分子量及其分布 ,结果发现

In this paper the molecular weights and molecular weight distributions of different kinds of cellulose are studied by gel permeation chromatography calibrated with narrow distribution polystyrene standards and using 0.5% LiCl in N, N dimethylacetamide(DMAc) as the eluent. The results show that the MWD of cellulose for producing textile Lyocell fibers is different from that for producing Lyocell precursor for carbon fiber.