| 高龙雪,平清伟,盛雪茹,张健,李娜.疏水型蔗髓微粒子制备及其复合聚氨酯发泡材料的油水分离效果研究[J].中国造纸学报,2026,41(2):72-80 |
二维码（扫一下试试看！） |
| 疏水型蔗髓微粒子制备及其复合聚氨酯发泡材料的油水分离效果研究 |
| Preparation of Hydrophobic Sugarcane Pith Microparticles and Study on the Oil-Water Separation Performance of Their Polyurethane Composite Foam Materials |
| 投稿时间：2026-02-10 修订日期：2026-02-23 |
| DOI：10.11981/j.issn.1000-6842.2026.02.72 |
| 中文关键词: 蔗髓 AKD改性 疏水型微粒子 聚氨酯发泡材料 油水分离 |
| Key Words:sugarcane pith AKD modification hydrophobic microparticles polyurethane foam oil-water separation |
| 基金项目:兴辽英才计划（XLYC1802025）。 |
| 作者 | 单位 | 邮编 | | 高龙雪* | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | 116034 | | 平清伟* | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | 116034 | | 盛雪茹 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | 116034 | | 张健 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | 116034 | | 李娜 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | 116034 |
|
| 摘要点击次数: 268 |
| 全文下载次数: 8 |
| 中文摘要: |
| 以蔗渣筛余物蔗髓为原料，采用乙醇预处理、机械粉碎及烷基烯酮二聚体（AKD）干法改性，制备疏水型蔗髓微粒子（HMSP），并将其用于制备HMSP/聚氨酯复合发泡材料。结果表明，乙醇预处理与机械粉碎可增加HMSP的醇羟基和酚羟基含量；此外，这些羟基通过与AKD反应，可使HMSP的疏水性显著提升，粒径≤75 μm的蔗髓微粒子经AKD改性后制得HMSP75的水接触角最高，达152.12°；将HMSP75加入聚氨酯体系后，可明显改善制得HMSP/聚氨酯复合发泡材料的孔结构与力学性能，HMSP75质量分数为10%时制得的复合发泡材料HMSP-10-PUF的水接触角达到最大值135.02°，在应变70%时，压缩应力约0.35 MPa；其对“浮油水”与“沉油水”混合体系均表现出优良的油水分离性能，吸油量约25 g/g（模拟油相二氯甲烷），且其吸油能力在10次吸附-解吸循环后仍保持在初始值的80%以上。 |
| Abstract: |
| Using sugarcane bagasse screen residue （sugarcane pith） as raw material， hydrophobic sugarcane pith microparticles （HMSP） were prepared through ethanol pretreatment， mechanical grinding， and dry modification with alkylene ketone dimer （AKD）. HMSP were then used to prepare HMSP/polyurethane composite foam materials. The results showed that ethanol pretreatment and mechanical grinding could increase the content of alcoholic and phenolic hydroxyl groups in HMSP； Furthermore， these hydroxyl groups reacted with AKD could significantly enhance the hydrophobicity of HMSP. After modification with AKD， the prepared HMSP75 derived from sugarcane pith microparticles with a particle size of ≤75 μm exhibited the highest water contact angle of 152.12°. When HMSP75 was incorporated into the polyurethane system， it markedly improved the pore structure and mechanical properties of the prepared HMSP/polyurethane composite foam materials. The HMSP-10-PUF prepared with a 10% HMSP75 mass fraction exhibited the highest water contact angle， reaching 135.02°. At strain of 70%， the compressive stress of HMSP-10-PUF was approximately 0.35 MPa. It exhibited excellent oil-water separation performance in both “floating oil-water” and “sinking oil-water” mixed systems， with an oil absorption capacity of approximately 25 g/g for dichloromethane as simulated oil phase. Moreover， its oil absorption capacity remained at over 80% of the initial value even after 10 times of adsorption-desorption cycles. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
