https://orcid.org/0000-0002-7401-9770
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ABSTRACT
Textile waste materials such as chemical-based diapers are responsible for aggravating environmental pollution. It usually takes years to degrade naturally. The world is in constant need of some green alternative solutions without compromising on product performance. Cellulosic materials being highly absorbent and biodegradable in nature such as cotton, Kapok, jute, banana etc. have the potential to replace these synthetic materials. The present study investigates the simulated urine absorption and retention characteristics of 100% cotton and Kapok-cotton blended webs. The morphological characteristics of raw, scoured and rewetted Kapok fiber were first studied. The hollow Kapok fiber lumen was found to have collapsed after scouring. However, it regained its shape after re-wetting in simulated urine. Absorption capacity was found to be maximum at 50:50 Kapok-cotton ratio in the nonwoven web. Statistically, the t-test also corroborates the same result at a 5% significance level. The absorption rate (g/s) and retention (%) were also maximum for the same blend. With an increase in external pressure, the liquid retention was reduced. On comparing a 50:50 Kapok-cotton blended with a 100% cotton nonwoven fibrous web, the absorption capacity, rate, and retention are increased by 26.1%, 300%, and 13.5%, respectively.
摘要
化学纸尿裤等纺织废料加剧了环境污染. 自然降解通常需要数年时间. 在不影响产品性能的情况下，世界一直需要一些绿色替代解决方案. 纤维素材料在自然界中具有高吸收性和可生物降解性，如棉花、木棉、黄麻、香蕉等，有可能取代这些合成材料. 本研究调查了100%棉和木棉混纺网的模拟尿液吸收和滞留特性. 首次研究了生、洗、复湿木棉纤维的形态特征. 中空的木棉纤维管腔在冲刷后被发现已经塌陷. 然而，在模拟尿液中再次润湿后，它恢复了形状. 在非织造纤维网中发现在50∶50的Kapok棉比例下吸收能力最大. 在统计学上，t检验也在5%的显著性水平上证实了同样的结果. 对于相同的共混物，吸收率（g/s）和保留率（%）也是最大的. 随着外部压力的增加，液体保持率降低. 将50:50 Kapok棉与100%棉非织造纤维网共混，吸收能力、速率和保留率分别提高了26.1%、300%和13.5%.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Ethical approval
We confirm that all the research meets ethical guidelines and adheres to the legal requirements of the study country. The research does not involve any human or animal welfare related issues.