Biocompatible Cellulose-Based Superabsorbents for Personal Care Products

IF 4.7 3区工程技术 Q2 ENGINEERING, ENVIRONMENTAL

Journal of Polymers and the Environment Pub Date : 2024-05-17 DOI:10.1007/s10924-024-03315-4

Rafael C. Rebelo, Blanca Vélez Báguena, Patrícia Pereira, Rui Moreira, Jorge F. J. Coelho, Arménio C. Serra

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Abstract

Personal care products are an inseparable part of urban society, but the widespread use of petroleum-based superabsorbent polymers (SAPs) poses significant environmental negative impact. To overcome this problem, we investigated the development of cellulose-based hydrogels through di-epoxide chemical crosslinking of cellulose/cellulose electrolytes in NaOH/Urea aqueous system. The aim was to exploit mechanical strength, hydrophilicity, non-toxicity, and biodegradability of cellulose as the absorbent core of personal hygiene products through a simple synthesis method. The synthesized cellulose materials significantly improved the absorption capacity of the gels by 220%, reaching up to 41 g/g. The absorption properties were influenced by the cellulose DS, crosslinking density, and fluid salinity. The hydrogels demonstrated a remarkable absorption capacity of synthetic urine (27 g/g) and underload conditions (12 g/g). Their non-cytotoxic and biodegradable nature showed their potential for the manufacturing of personal care products such as disposable diapers or daily pads.

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用于个人护理产品的生物相容性纤维素基超级吸附剂

个人护理产品是城市社会不可分割的一部分，但石油基超吸水性聚合物（SAP）的广泛使用对环境造成了严重的负面影响。为了解决这个问题，我们研究了在 NaOH/Urea 水体系中通过二环氧乙烷化学交联纤维素/纤维素电解质来开发纤维素基水凝胶的方法。目的是通过简单的合成方法，利用纤维素的机械强度、亲水性、无毒性和可生物降解性，将其作为个人卫生用品的吸收核心。合成的纤维素材料将凝胶的吸收能力显著提高了 220%，达到 41 克/克。纤维素 DS、交联密度和液体盐度都会影响吸收特性。水凝胶对合成尿液（27 克/克）和欠载条件（12 克/克）的吸收能力非常显著。它们的无细胞毒性和可生物降解特性表明，它们具有生产一次性尿布或日用护垫等个人护理产品的潜力。

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来源期刊

Journal of Polymers and the Environment 工程技术-高分子科学

CiteScore

9.50

自引率

7.50%

发文量

297

审稿时长

9 months

期刊介绍： The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.