化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (2) : 258-263. DOI: 10.19817/j.cnki.issn1006-3536.2025.02.037

开发与应用

一种新型油页岩半焦保水剂的制备与性能研究

作者信息 +

Preparation and performance study of a novel oil shale carbocoal water-retaining agent

Yi Lianpeng, Zhang Zhifang, Cui Yanjun, Hu Bing, Xu Yumei, Nian Fang

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文章历史 +

Received
2024-01-17
Issue Date	Revised Date
2025-02-20	2024-01-17

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摘要

以海藻酸钠(SA)为接枝骨架,油页岩半焦(CC)为添加组分,N,N-亚甲基双丙烯酰胺(MBA)为交联剂,丙烯酸(AA)为接枝单体,通过一步水溶液聚合法制备了CC新型保水剂。考察了反应条件对保水剂吸水、保水和耐盐性能的影响。采用红外光谱(FT-IR)、扫描电子显微镜(FESEM)及热重分析(TG)等表征手段对新型保水剂微观结构及理化性能进行了详细研究。结果表明:CC的加入有利于提高保水剂网络结构的规整性和强度,从而提升吸水和保水能力。当半焦添加质量为10%时,保水剂在蒸馏水和0.9% NaCl溶液中的吸水量达到最优,室温下2h溶胀倍率分别达到260g/g和98g/g。保水能力在3d内仍然保持在60%,重复使用6次后,该保水剂的吸水能力仍达87.5%左右。小麦种植实验表明:添加了CC的保水剂小麦种子发芽率较高,小麦长势较好。这一结果进一步为CC的高值利用提供新的技术和理论参考。

Abstract

A novel oil shale carbocoal (CC) water-retaining agent was prepared by one-step aqueous polymerization with sodium alginate (SA) as graft skeleton,CC as inorganic additive,N,N-methylene bisacrylamide (MBA) as crosslinking agent and acrylic acid (AA) as grafting monomer.The effects of reaction conditions on the absorbency,water retention and salt resistance of the water-retaining agent were investigated.The microstructure and physicochemical properties of the novel water-retaining agent were studied by means of electron scanning electron microscopy (FESEM),infrared spectroscopy (FT-IR) and thermogravimetric analysis (TG).The results showed that the addition of CC could improve the regularity and strength of the network structure of the water-retaining agent,thereby improving its absorbency and water retaining capacity.When the amount of CC was 10 wt%,the absorbency of the water-retaining agent in distilled water and 0.9% NaCl solution was optimal,with swelling ratios of 260g/g and 98g/g at room temperature for 2h,respectively.The water retention capacity remained at 60% within 3d,and the water absorbing capacity of the water-retaining agent was still as high as 87.5% after repeated use for 6 times.The wheat planting experiment indicated that the addition of CC water-retaining agent increased the wheat seed germination rate of wheat seeds and promoted better wheat growth.The findings further provides a new technical and theoretical reference for the high-value utilization of CC.

关键词

海藻酸钠 / 油页岩半焦 / 新型保水剂 / 吸水性能 / 保水性能

Key words

sodium alginate / oil shale carbocoal / novel water-retaining agent / water absorption / water retention

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一种新型油页岩半焦保水剂的制备与性能研究[J]. 化工新型材料, 2025, 53(2): 258-263 DOI:10.19817/j.cnki.issn1006-3536.2025.02.037

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