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化学改性纤维素纤维的化加工,仅用水作为塑化剂:水分含量和加工温度的影响

Emile R Engel¹, Giada Lo Re², Per A Larsson¹

¹Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden; FibRe - Centre for Lignocellulose-based Thermoplastics, Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.

Carbohydrate polymers

|November 20, 2024

概括

研究人员开发了可化加工的纤维素纤维,通过将其修改为dialcohol纤维素. 这一创新使得无塑料,可回收材料具有增强的柔性,为可持续的替代石油塑料铺平了道路.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
生物材料是一种生物材料.

背景情况:

石油衍生聚合物主导着塑料应用.
纤维素是一种可持续的替代品,在化之前通常会降解.
对于基于纤维素的材料来说,化加工是可取的,以实现类似塑料的制造.

研究的目的:

为了开发可化加工的纤维素纤维.
为了保持基于纤维素的材料的可回收性.
为了创建强大而耐用的纤维素挤出材料.

主要方法:

原生纤维素纤维的部分修改为二醇纤维素.
使用水作为唯一的塑化剂进行化加工.
通过挤出机螺丝轴力进行风湿学分析.
使用NMR,显微镜,拉伸测试和X射线衍射进行表征.

主要成果:

经过改性纤维素纤维的化加工.
与手纸相比,化加工的挤出材料具有更高的可塑性.
由于晶度降低和纤维缩短,拉伸强度和刚度中度下降.
通过使用纸张回收方法,成功地将加工材料与未经修改的纤维进行回收.

结论:

二醇纤维素的修饰使纤维素纤维的化加工成为可能.
该过程产生了强大,耐用和高度柔性材料.
这种方法为石油塑料提供了一个可持续的,可回收的替代品.

关键词:

纤维素纤维素是一种纤维素.这是一种二醇纤维素.纤维修饰的修改方法纤维纤维化可塑化方法化加工是化的过程.

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