| 陈慧君,陈若怡,刘以凡,刘明华.木质素磺酸钠/聚乙烯醇半互穿网络高吸水树脂的制备及性能研究[J].中国造纸学报,2026,41(2):81-88 |
二维码（扫一下试试看！） |
| 木质素磺酸钠/聚乙烯醇半互穿网络高吸水树脂的制备及性能研究 |
| Study on Preparation and Performances of Sodium Lignosulfonate/Polyvinyl Alcohol Superabsorbent Resin with Semi-Interpenetrating Network |
| 投稿时间：2025-10-12 修订日期：2025-11-09 |
| DOI：10.11981/j.issn.1000-6842.2026.02.81 |
| 中文关键词: 木质素磺酸钠 半互穿网络 耐盐型 高吸水树脂 |
| Key Words:sodium lignosulfonate semi-interpenetrating network salt-tolerant superabsorbent resin |
| 基金项目:福厦泉国家自主创新示范区城乡生态环境质量提升关键技术协同创新平台项目（2022-P-024）。 |
| 作者 | 单位 | 邮编 | | 陈慧君* | 1福州大学环境与安全工程学院,福建福州,350108 | 350108 | | 陈若怡 | 1福州大学环境与安全工程学院,福建福州,350108 | 350108 | | 刘以凡 | 1福州大学环境与安全工程学院,福建福州,350108 | 350108 | | 刘明华* | 1福州大学环境与安全工程学院,福建福州,350108
2莆田学院环境与生物工程学院,福建莆田,351100 | 351100 |
|
| 摘要点击次数: 222 |
| 全文下载次数: 4 |
| 中文摘要: |
| 以木质素磺酸钠（LS）为刚性骨架，引入线性聚乙烯醇（PVA）与聚(丙烯酸-丙烯酰胺)共价交联网络形成半互穿体系，构建“LS生物基骨架+半互穿网络”复合结构，制备了LS接枝聚(丙烯酸-丙烯酰胺)/PVA半互穿网络高吸水树脂（LS-g-P(AA-co-AM)/PVA），突破了传统单一交联网络的局限。结果表明，LS-g-P(AA-co-AM)/PVA在蒸馏水和质量分数0.9%的NaCl溶液中的吸水（液）倍数分别达1 492.1和183.6 g/g。由于磺酸基与羧酸盐形成的双重电荷体系、PVA可逆氢键网络及PVA羟基与Na⁺的离子-偶极配位层的三重协同作用，LS-g-P(AA-co-AM)/PVA的耐盐性优异，在质量分数3%的NaCl溶液中的吸液倍数仍可达123.6 g/g。此外，LS-g-P(AA-co-AM)/PVA的保水性能、耐酸碱性、循环使用性能优异，其在60 ℃下放置12 h后的保水率仍可达61.0%，经5次循环后吸水倍数的保留率为49.3%，在盐碱地改良、园艺栽培等领域具有一定的应用潜力。 |
| Abstract: |
| Incorporating sodium lignosulfonate (LS) as a rigid bio-based framework， linear polyvinyl alcohol (PVA) and poly(acrylic acid-acrylamide) were introduced to form a semi-interpenetrating system within the covalent cross-linked network， a LS-grafted poly(acrylic acid-acrylamide)/PVA superabsorbent resin (LS-g-P(AA-co-AM)/PVA) with semi-interpenetrating network was prepared， and a composite architecture comprising a “sodium lignosulfonate-based bio-skeleton + semi-interpenetrating network” was constructed， which could overcome the limitations of traditional single cross-linked networks. The results showed that the multiples of water (liquid) absorbing of LS-g-P(AA-co-AM)/PVA in distilled water and NaCl solution with mass fraction of 0.9% were 1 492.1 and 183.6 g/g， respectively. Due to the triple synergistic effects of the dual-charge system formed by the sulfonate groups and carboxylate groups， the reversible hydrogen-bond network of PVA， and the ion-dipole coordination layer between the hydroxyl groups of PVA and Na⁺， LS-g-P(AA-co-AM)/PVA exhibited excellent salt-tolerance， with multiple of liquid absorbing of 123.6 g/g even in NaCl solution with mass fraction of 3%. In addition， LS-g-P(AA-co-AM)/PVA exhibited outstanding water retention， acid and alkali resistance， and recyclability. Its water retention rate remained as high as 61.0% after being left at 60 ℃ for 12 h， and the retention rate of multiples of water absorbing was 49.3% after 5 cycles. These showed that LS-g-P(AA-co-AM)/PVA had significant potential for applications in areas such as the reclamation of saline-alkali land and horticultural cultivation. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
