Superabsorbent fibers and cellulose hydrogels

高吸水性纤维和纤维素水凝胶

• 批准号: 463739-2014
• 负责人: vandeVen, Theodorus
• 金额: $ 5.46万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=577093
• 关键词: Superabsorbent; fibers; cellulose; hydrogels

Summary NSERC/CRD proposal "Superabsorbent fibers and cellulose hydrogels". Superabsorbent fibers are promising candidates for superabsorbent papers, such as wipes, diapers, etc. Other cellulose products able to take up large amounts of water are cellulose hydrogels. Both superabsorbent fibers and cellulose hydrogels need to be optimized for water absorbency, strength, processing conditions, interactions with non-modified cellulose, etc. The advantages of superabsorbent cellulose fibers and hydrogels are that they are "green" (i.e. produced in an aqueous process) and made from renewable materials. In the proposed research we will focus on: (i) Superabsorbent fibers, especially optimizing their fabrication, studying their morphological changes upon swelling, their drying and rewetting characteristics, and their rheology. Pilot paper machine trials will be done as well; (ii) Cellulose hydrogels, made from cellulose fibrils, cellulose nanofibers, chemically modified nanocrystalline cellulose and from chemically modified dissolved cellulose. These gels will be fully characterized and their rheology will be studied. Certain gels can be made into dopes for the spinning of textile fibers. Pilot trials on a spinneret will be performed to optimize the properties of cellulose textile fibers.

摘要NSERC/CRD建议“超吸收纤维和纤维素水凝胶”。 Superabsorbent纤维是超吸收纸（例如湿巾，尿布等）的有希望的候选者。其他能够吸收大量水的纤维素产品是纤维素水凝胶。超吸收纤维和纤维素水凝胶都需要优化，以用于吸水，强度，加工条件，与非修饰的纤维素相互作用等。超亚纤维纤维素纤维和水凝胶的优势是，它们是“绿色”（即在水溶液过程中产生的）以及由可腐烂的材料制成的。在拟议的研究中，我们将重点介绍：（i）超吸收纤维，尤其是优化它们的制造，研究其形态学变化，肿胀，干燥和重新吹干特征及其流变学。试点纸机试验也将进行； （ii）由纤维素原纤维，纤维素纳米纤维，化学修饰的纳米晶纤维素和化学改性的溶解溶解的纤维素制成的纤维素水凝胶。这些凝胶将充分表征，并将研究其流变学。某些凝胶可以将纺织纤维旋转成掺杂剂。将对Spinneret进行试验试验，以优化纤维素纺织纤维的性能。