A novel superabsorbent material based on soybean straw: Synthesis and characterization

IF 1.9 4区材料科学 Q3 Materials Science Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI:10.1515/secm-2022-0006

Junhua Guo, Jing-Xing Huang, Tingguo Liu, Jianbin Chen, S. Janaswamy

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引用次数: 2

Abstract

Abstract A novel superabsorbent copolymer (SAP) was developed by grafting acrylic acid onto the pretreated soybean straw (PSBS) using gamma-ray irradiation. The structure of soybean straw, treated soybean straw, and SAP were characterized through Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TG), and scanning electron microscopy (SEM). The effect of irradiation dose, the dosage of cross-link agent, and the monomer ratio of the graft copolymer on the water absorbency of the SAP was investigated. The highest water absorbency of 1,489 g/g in distilled water and 56 g/g in 0.9 wt% NaCl solution was obtained, when the ratio of acrylic acid (AA) to PSBS was 6:1. This irradiation technique is superior to traditional methods with advantages such as less heavy pollution, low-energy consumption, and high-water retention performance. The outcome is deemed to open up new pathways to synthesize environmentally safe superabsorbents with applications in the food, pharmaceutical, and medical industries.

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基于大豆秸秆的新型高吸水性材料的合成与表征

摘要利用γ射线辐照将丙烯酸接枝到预处理的大豆秸秆（PSBS）上，制备了一种新型的高吸水性共聚物（SAP）。通过傅立叶变换红外光谱（FTIR）、X射线衍射（XRD）、热重分析（TG）和扫描电子显微镜（SEM）对大豆秸秆、处理后的大豆秸秆和SAP的结构进行了表征。研究了辐照剂量、交联剂用量和接枝共聚物的单体配比对SAP吸水性的影响。最高吸水率为1489 g/g在蒸馏水中和56 0.9中的g/g 当丙烯酸（AA）与PSBS的比例为6:1时获得wt%NaCl溶液。该辐照技术具有重污染小、能耗低、保水性能高等优点，优于传统的辐照方法。这一结果被认为为合成环境安全的超吸收剂开辟了新的途径，并在食品、制药和医疗行业中得到应用。

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来源期刊

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.