袋式除尘用聚苯硫醚纤维的研究进展与展望

doi:10.13475/j.fzxb.20230702202

摘要/Abstract

摘要：

为更好地了解高性能聚苯硫醚纤维近年来的发展现状,对其国内外的发展历程以及生产产能现状进行综述。针对在高温烟气袋式除尘领域中的特殊应用,系统性阐述了聚苯硫醚纤维的最新研究进展,主要涵盖细化/超细化、异形化、抗氧化、催化等4个方面;详细介绍了细化/超细化、抗氧化聚苯硫醚纤维的制备方法,并将各种方法优缺点进行对比分析;简要总结了异形化和催化特性聚苯硫醚纤维的发展状况与方向,指出了其发展中存在的问题并提出了针对性建议,以期为我国高温除尘用差别化、功能化的聚苯硫醚纤维的相关研究、生产及应用提供思路和起到一定的指导作用。基于我国聚苯硫醚纤维制备技术现状与市场发展要求,认为要实现我国高过滤精度、差别功能化、性能稳定的聚苯硫醚纤维自主生产,亟需企业、高校、科研院所等各方协作、联合攻关,在基础原料、关键设备、纺丝工艺等方面进行突破。

关键词: 袋式除尘器, 聚苯硫醚纤维, 超细纤维, 异形纤维, 抗氧化, 催化, 滤袋材料

Abstract:

Significance Polyphenylene sulfide (PPS) fiber serves as the main material for filter bags, a crucial core component of baghouse dust collectors. It is widely applied in the dust removal of high-temperature industrial flue gas, such as coal-fired boiler plants, municipal waste incineration plants, and power plants. With the increasingly stringent atmospheric emission standards in recent years, the mandatory implementation of ultra-clean flue gas emissions for certain industrial enterprises, as well as the application requirements for high performance, long service life, differentiated and multifunctional, there have been higher requirements for PPS fiber. However, to the best of our knowledge, no comprehensive overviews focused on the continuous development of PPS fibers for filter bag have been reported. For a more comprehensive understanding of the present development status of PPS fibers, this review provides a systematically investigation for the development history and current production capacity of it both domestically and internationally, the research progress and existing issues in the development of PPS fibers for baghouse dust removal. This paper aims to provide insights and guidance to promote the research, production, and application of differentiated functional PPS fiber for high-temperature dust removal in China.

Progress To meet practical application requirements, PPS fiber is developing towards finer and ultrafine deniers, profile fiber, and with antioxidant, catalytic and more functions. At present, the fineness of PPS ultrafine fibers can reach the micron or even nanometer level, and the fabrication methods mainly include melt-blown spinning, melt electrospinning, and sea-island melt spinning. Among them, melt-blown spinning is the most widely used method for the production of PPS ultrafine fibers due to its advantages of larger production output, shorter process, and lower cost. Although profiled PPS fibers include trilobal, Y-shaped, and split shapes currently, only trilobal PPS fibers are commercially available, with Japan's Toyobo being the sole manufacturer. The antioxidant modification of PPS fibers is aimed at addressing the problems of fiber fracture, mechanical strength degradation, and service life shortening of PPS filter when it is exposed to the gaseous components at high temperatures, and further enhance its structural stability in a harsh environment. Currently, the main approaches reported to improve the thermal and oxidation resistance of PPS fibers include surface film-forming method and direct addition method. The surface film-forming method refers to the surface treatment solution prepared by antioxidant, nanoparticle or high-performance resin dipping or spraying it on the surface of PPS fibers or nonwoven material to formulating an antioxidant protective layer. The direct method refers to melt spinning after blending the antioxidant, nanoparticle or high-performance resin with PPS resin directly. PPS-based filter bags with catalytic function are fabricated by loading catalysts such as manganese oxide (MnO₂, Mn₂O₃) and cerium oxide (CeO₂) to decorated PPS fibers or its needle-punching fibrous felts by using in-situ deposition, impregnation calcination and directed coating. It is aimed to achieve a novel integrated filtration material with compact structure and low cost that can provide both harmful gas purification and fine dust removal functions.

Conclusion and Prospect Study on key preparation technologies for differentiated and functional PPS fibers in China commenced relatively late. There are still some problems such as inadequate follow-up in fundamental research, imperfect and immature production processes, and poor product quality stability. Breakthrough in the key research areas and industrial production of differentiated functional PPS fibers such as fine/ultrafine deniers, profile, antioxidant, catalysis, is not only an urgent need for market applications, but also the requirements for the high-quality development of high-performance fiber during the "14th Five-Year Plan" period. Hence, to achieve independent production of differentiated functional PPS fibers, it is imperative for enterprises, universities, and research institutes to collaborate on fundamental raw materials, key equipment, production processes, and other aspects in a joint effort to overcome these challenges.

Key words: bag filter, polyphenylene sulfide fiber, ultrafine fiber, profiled fiber, antioxidantion, catalyze, filter bag material

中图分类号:

TQ342

何雨静, 康建平, 赵坤伟, 何勇, 李佳逸, 谭昕. 袋式除尘用聚苯硫醚纤维的研究进展与展望[J]. 纺织学报, 2024, 45(10): 232-240.

HE Yujing, KANG Jianping, ZHAO Kunwei, HE Yong, LI Jiayi, TAN Xin. Research progress and future perspectives of polyphenylene sulfide fiber for bag filter[J]. Journal of Textile Research, 2024, 45(10): 232-240.

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链接本文: http://www.fzxb.org.cn/CN/10.13475/j.fzxb.20230702202

http://www.fzxb.org.cn/CN/Y2024/V45/I10/232

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生产厂家	生产规模/ (t·a^-1)	纤维种类
日本东丽株式会社	4 000	PPS短纤、长丝
日本东洋纺株式会社	3 000	PPS短纤、长丝、异形纤维
美国纤维创新技术公司	1 000	PPS短纤
四川安费尔高分子材料科技有限公司	7 500	PPS短纤
苏州金泉新材料股份有限公司	3 000	纳米复合PPS短纤
浙江新和成股份有限公司	5 000	PPS短纤
敦煌西域特种新材股份有限公司	1 500	PPS短纤