芳纶Ⅲ和PBO纤维的耐酸碱性能对比

doi:10.12066/j.issn.1007-2861.2742

上海大学学报(自然科学版) ›› 2026, Vol. 32 ›› Issue (4): 688-699.doi: 10.12066/j.issn.1007-2861.2742

• 材料科学与工程 • 上一篇

芳纶Ⅲ和PBO纤维的耐酸碱性能对比

曹敬雅¹, 于兆霞², 于俊荣¹, 吴艺峰³, 李娜¹, 胡祖明¹, 王彦¹

1. 东华大学先进纤维材料全国重点实验室, 上海 201620;
2. 康迪泰克投资 (中国) 有限公司, 上海 200082;
3. 司马化工 (中国) 有限公司, 上海 200041

收稿日期:2025-12-25 发布日期:2026-09-04
通讯作者: 于俊荣(1971—),女,教授,博士生导师,博士,研究方向为超高分子量聚乙烯纤维、芳纶、PBO纤维.E-mail:yjr@dhu.edu.cn E-mail:yjr@dhu.edu.cn
基金资助:
国家科技重大专项资助项目(2024ZD0602500)

Comparative study on acid and alkali resistance of aramid Ⅲ and PBO fibers

CAO Jingya¹, YU Zhaoxia², YU Junrong¹, WU Yifeng³, LI Na¹, HU Zuming¹, WANG Yan¹

1. State Key Laboratory of Advanced Fiber Materials, Donghua University, Shanghai 201620, China;
2. ContiTech Investment (China) Co., Ltd., Shanghai 200082, China;
3. ZSCHIMMER & SCHWARZ (China) Co., Ltd., Shanghai 200041, China

Received:2025-12-25 Published:2026-09-04

摘要/Abstract

摘要： 为评价高性能纤维在极端环境下的耐久性,对比了芳杂环聚酰胺(芳纶Ⅲ)纤维和聚对苯撑苯并二噁唑(poly-p-phenylene benzobisoxazole,PBO)纤维在质量分数为30%的硫酸和氢氧化钠溶液中的耐老化行为.实验设置25和80℃两种温度条件,系统分析了PBO纤维在酸碱环境下的性能退化规律及内在机理.结果表明:PBO纤维的耐酸碱性能优于芳纶Ⅲ纤维;温度升高会显著加快老化速率,80℃条件下的性能衰减程度远大于25℃;酸性环境(H₂SO₄)对PBO纤维的腐蚀程度大于碱性环境(NaOH).芳纶Ⅲ纤维的酰胺键易发生水解,PBO纤维的苯并噁唑环结构赋予其更高的化学稳定性.研究结果能为化工防护、高温过滤等环境中的纤维材料选型提供重要依据.

关键词: 芳纶Ⅲ纤维, 聚对苯撑苯并二噁唑(poly-p-phenylene benzobisoxazole,PBO)纤维, 酸碱老化, 力学性能, 化学结构

Abstract: To evaluate the durability of high-performance fibers in extreme environments, this study compared the aging resistance behaviors of heteroaromatic polyamide fiber (aramid Ⅲ) and poly-p-phenylene benzobisoxazole (PBO) fiber in 30% (mass fraction) sulfuric acid (H₂SO₄) and sodium hydroxide (NaOH) solutions. Experiments were conducted under two temperature conditions (25 ℃ and 80 ℃) to systematically analyze the performance degradation laws and intrinsic mechanisms of PBO fiber in acidic and alkaline environments. The results show that PBO fiber exhibits superior acid and alkali resistance compared to aramid Ⅲ fiber. Elevated temperature significantly accelerates the aging rate, with the degree of performance degradation at 80 ℃ being much greater than that at 25 ℃. The corrosive effect of the acidic environment (H₂SO₄) on PBO fiber is more severe than that of the alkaline environment (NaOH). The amide bonds in aramid Ⅲ fiber are prone to hydrolysis, while the benzoxazole ring structure of PBO fiber endows it with higher chemical stability. The research findings provide important references for fiber material selection in applications such as chemical protection and high-temperature filtration.

Key words: aramid Ⅲ fiber, poly-p-phenylene benzobisoxazole (PBO) fiber, acid and alkali aging, mechanical properties, chemical structure

中图分类号:

TQ34

曹敬雅, 于兆霞, 于俊荣, 吴艺峰, 李娜, 胡祖明, 王彦. 芳纶Ⅲ和PBO纤维的耐酸碱性能对比[J]. 上海大学学报(自然科学版), 2026, 32(4): 688-699.

CAO Jingya, YU Zhaoxia, YU Junrong, WU Yifeng, LI Na, HU Zuming, WANG Yan. Comparative study on acid and alkali resistance of aramid Ⅲ and PBO fibers[J]. Journal of Shanghai University（Natural Science Edition）, 2026, 32(4): 688-699.

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芳纶Ⅲ和PBO纤维的耐酸碱性能对比

Comparative study on acid and alkali resistance of aramid Ⅲ and PBO fibers

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