3D打印多重交联网络纤维素凝胶材料  

3D Printing Multi Crosslinked Network Cellulose Gel Material

作　　者：黄斯声 陈继飞[1] HUANG Sisheng;CHEN Jifei(School of Machinery and Transportation,Southwest Forestry University,Kunming 650224,China)

机构地区：[1]西南林业大学机械与交通学院,昆明650224

出　　处：《纺织科技进展》2024年第12期25-28,共4页Progress in Textile Science & Technology

摘　　要：纤维素是地球上最丰富的天然有机高分子聚合物之一,为了拓展其在3D打印领域的应用前景,将纤维素用碱处理后,对其进行甲基化与聚羟丙基醚化修饰,可以破坏纤维素之间的氢键,通过这种方法得到修饰改性后的纤维素,结晶度下降,水中溶胀性和水溶性提高,获得了新的性质及功能。探究多重交联网络对纤维素凝胶的制备及性能的影响。研究表明,多重交联网络的形成对纤维素凝胶的弹性模量、韧性和吸水率有显著的提升。将该纤维素凝胶材料与3D打印技术相结合,可以形成具有复杂结构和功能的产品,如复合材料、药物载体等,已广泛应用于生物医学、工业、农业纺织等领域。Cellulose is one of the most abundant natural organic polymers on earth.In order to expand its application areas and prospects in 3D printing,after treating cellulose with alkali,the modification of cellulose by methylation and polyhydroxypropyl etherification can destroy the hydrogen bonding between cellulose,and the modified modified cellulose obtained by this method has decreased in crystallinity and increased in solubility and water solubility in water,and new properties as well as functions were obtained.The effect of multiple cross-linking networks on the preparation as well as the properties of cellulose gels was explored,and it was shown that the formation of multiple cross-linking networks significantly enhanced the elastic modulus,toughness,and water absorption of cellulose gels.Combining this cellulose gel material with 3D printing technology,products with complex structures and functions,such as composites and drug carriers,can be formed.It has been widely used in biomedical,industrial,agricultural textile and other fields.

关 键 词：纤维素凝胶 3D打印 多重交联 复合材料 农业纺织 

分 类 号：TQ352.7[化学工程]