Highly Performing Polysaccharide Hydrogels can Replace Acrylic Acid-Based Superabsorbent Polymers in Sanitary Napkins

IF 4.2 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Saeed Ismaeilimoghadam, Bahareh Azimi, Mehdi Jonoobi, Serena Danti
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Abstract

Super absorbent polymers (SAPs) used in sanitary napkin are not required for water absorption capacity as high as in baby diapers and adult incontinence pads. Sanitary napkins must absorb menses, which is delivered at a significantly lower rate and overall daily amount than urines. Thus, the acrylic acid (AA) component can not be strictly necessary. By proper formulation design and processing, polysaccharide SAPs can be equally or even better performing than AA-containing SAPs in sanitary napkins. Fully biodegradable sodium alginate (SA)-based SAPs are prepared through ionic cross-linking by CaCl2 and introduced in female pads. The optimal solution concentrations (SA 8% w/v, CaCl2 0.25% w/v in water) and reaction time are identified, and addition of cellulose nanocrystals (CNC) at different weight contents (0–3 w%) is tested. Morphology, physico-chemical properties, rheology, free swelling capacity (FSC), centrifuge retention capacity, and weight loss in soil are assessed. Increasing CNC content decreases FSC. Rheology results demonstrate higher storage and loss moduli for SA-based SAPs versus commercial SAPs. The superior SA-SAP developed is used in varying amounts for manufacturing sanitary napkin prototypes, revealing that excellent menstrual fluid absorption, surpassing commercial pads. Replacing AA-based with polysaccharide-based SAPs would reduce the environmental impact of hygienic product waste.

Abstract Image

高性能多糖水凝胶可替代丙烯酸基高吸水性聚合物用于卫生巾
卫生巾中使用的高吸水性聚合物(sap)吸水能力不需要像婴儿尿布和成人失禁垫那样高。卫生巾必须吸收月经,而月经的速度和每日总量都明显低于尿液。因此,丙烯酸(AA)成分可以不是严格必需的。通过合理的配方设计和加工,多糖sap在卫生巾中的性能可以与含aa sap持平甚至更好。采用氯化钙离子交联法制备了完全可生物降解的海藻酸钠(SA)基sap,并将其引入女性衬垫中。确定了最佳溶液浓度(SA 8% w/v, CaCl2 0.25% w/v)和反应时间,并测试了不同质量含量(0-3 w%)的纤维素纳米晶(CNC)的添加量。评估了土壤的形态、理化性质、流变学、自由膨胀能力(FSC)、离心机保留能力和重量损失。CNC含量增加,FSC降低。流变学结果表明,与商用sap相比,基于sa的sap具有更高的存储和损耗模量。优越的SA-SAP开发用于不同数量的制造卫生巾原型,揭示了出色的月经液吸收,超过商业卫生巾。用多糖基sap取代aa基sap将减少卫生产品废弃物对环境的影响。
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来源期刊
Macromolecular Materials and Engineering
Macromolecular Materials and Engineering 工程技术-材料科学:综合
CiteScore
7.30
自引率
5.10%
发文量
328
审稿时长
1.6 months
期刊介绍: Macromolecular Materials and Engineering is the high-quality polymer science journal dedicated to the design, modification, characterization, processing and application of advanced polymeric materials, including membranes, sensors, sustainability, composites, fibers, foams, 3D printing, actuators as well as energy and electronic applications. Macromolecular Materials and Engineering is among the top journals publishing original research in polymer science. The journal presents strictly peer-reviewed Research Articles, Reviews, Perspectives and Comments. ISSN: 1438-7492 (print). 1439-2054 (online). Readership:Polymer scientists, chemists, physicists, materials scientists, engineers Abstracting and Indexing Information: CAS: Chemical Abstracts Service (ACS) CCR Database (Clarivate Analytics) Chemical Abstracts Service/SciFinder (ACS) Chemistry Server Reaction Center (Clarivate Analytics) ChemWeb (ChemIndustry.com) Chimica Database (Elsevier) COMPENDEX (Elsevier) Current Contents: Physical, Chemical & Earth Sciences (Clarivate Analytics) Directory of Open Access Journals (DOAJ) INSPEC (IET) Journal Citation Reports/Science Edition (Clarivate Analytics) Materials Science & Engineering Database (ProQuest) PASCAL Database (INIST/CNRS) Polymer Library (iSmithers RAPRA) Reaction Citation Index (Clarivate Analytics) Science Citation Index (Clarivate Analytics) Science Citation Index Expanded (Clarivate Analytics) SciTech Premium Collection (ProQuest) SCOPUS (Elsevier) Technology Collection (ProQuest) Web of Science (Clarivate Analytics)
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