模拟膜破损对不同基材过滤性能的影响

通过模拟不同基材覆膜滤料的膜破损情况,与膜完好的覆膜滤料进行过滤性能对比,阐明以玻纤水刺毡滤料为基材的覆膜滤料,因其自身具有良好的过滤性能,可以有效降低破膜产生的不良影响。而以玻纤机织布为基材的覆膜滤料,一旦膜破损,过滤性能大幅下降,说明该类基材自身过滤性能差,只能依赖PTFE膜进行过滤。     

玻纤/PPS、PTFE复合水刺滤料的研发

玻纤/PPS、PTFE复合水刺滤料突破了传统针刺产品的性能局限性,利用水刺动能开纤,使纤维原纤化,同时增加滤料的抱合度,使产品具有立体三维容尘梯次结构,有效解决过滤效率和阻力之间的矛盾,替代覆膜滤料适应PM2.5的排放标准。     

国产玻纤滤料在水泥窑尾脉喷袋式除尘器上的应用

本文介绍了水泥回转窑窑尾废气处理袋式除尘器对滤料的要求，分析了玻纤针刺毡和覆膜玻纤滤料的性能特点，阐述了窑尾高压脉喷袋式收尘器选用滤料的原则及延长玻纤滤袋寿命的措施，通过应用实例，展望了国产玻纤滤料在水泥厂的应用前景。     

高耐酸玻纤覆膜滤料耐腐蚀性能及应用研究

针对传统玻纤覆膜滤料存在的问题,开发了高耐酸玻纤覆膜滤料,其耐酸性能较普通E玻纤滤料用玻纤基材的耐酸性能提高了一个数量级,耐碱性能比C玻纤略好,与E玻纤相比提升显著,拉伸强度和耐折性要高于E玻纤滤料E750,与E玻纤滤料透气性基本一致。过滤性能测试表明,排放浓度为0.0000417g/m3,PM2.5过滤效率达到99.99960%,总过滤效率达到99.99977%,基本达到了"零排放"。在燃煤电厂的应用寿命已超过了22,000小时。     

聚四氟乙烯在垃圾焚烧烟气除尘中的应用

本文介绍了高温滤料的种类及性能、聚四氟乙烯（PTFE）过滤材料在垃圾焚烧袋式除尘器上的应用，并对PTFE滤料与其他滤料的技术和经济性能进行了比较。     

高性能水刺玻纤复合滤料性能的研究

通过实验对比水刺类与针刺类玻纤复合滤料的机械性能、过滤性能，阐述了针刺玻纤复合滤料存在的缺陷及水刺玻纤复合滤料的技术优势。     

重点污染源PM_(2.5)防控技术的经济性探讨

论述了除尘设备滤料的发展及合理使用的重要性,指出重点行业采用PM2.5污染防治技术,要进行科学对比,择优选用高性能的滤料及经济节约型的过滤除尘系统;通过应用实例,介绍了机械振打玻纤扁袋式除尘器的应用效果。     

水泥窑头除尘器超净滤料选型探讨

新型干法水泥窑头烟尘中粉尘含量大且粉尘颗粒粗,普通针刺滤料的使用无法完全满足超低排放的要求,而覆膜滤料又会面临粉尘冲刷产生PTFE膜破损的风险。文章从减小滤料孔径及增加滤料孔隙率对粉尘过滤效率的影响出发,探讨水泥窑头除尘器超净滤料选型的几种应对策略。     

袋式除尘器在国外火电厂捕集烟尘的应用

本文根据有关抽查报告和资料，评述了美、日、澳、南非等国，近几十年来将袋式除尘器成功地取代静电除尘器捕集火电厂烟尘的实践，介绍了以玻纤滤料的低气布比和以合纤滤料的高气布比袋式除尘器的工作参数、各自的特点及设计、使用中的经验。     

新型耐高温滤料的研制与发展

论述了高炉煤气净化用非织造滤料的选用原则,介绍了抚顺市工业用布厂研制开发的复合型耐高温滤主其发展趋势。     

聚苯硫醚（PPS）纤维发展现状与展望

介绍了国内聚苯硫醚纤维生产的发展历程及现状;通过对国内外产品性能对比,指出超细、异形、复合型、改性等产品的开发应用,是高性能聚苯硫醚纤维的发展方向;介绍了几种具有代表性的聚苯硫醚纤维产品。     

袋式除尘新技术在机立窑烟尘治理中的应用

介绍了袋式除尘新技术在机立窑烟气治理中的应用,多台机立窑采用一台唧玻纤袋除尘器集中除尘,其技术已经非常成熟,可以说是机立窑玻纤袋除尘技术的重大突破,也是一次飞跃式的发展。文章对袋式除尘器的技术发展等做了论述。     

新型玻纤／P84复合针刺毡的开发及应用

阐述了玻纤／P84复合毡过滤材料的研制过程、技术方法、使用效果及其应用。玻纤／P84复合针刺毡既要满足高性能、低成本的生产要求,还要适应不断提高的环保要求及复杂工况的要求。     

Life cycle assessment of biofibres replacing glass fibres as reinforcement in plastics

This article aims to determine the environmental performance of China reed fibre used as a substitute for glass fibre as reinforcement in plastics and to identify key environmental parameters. A life cycle assessment (LCA) is performed on these two materials for an application to plastic transport pallets. Transport pallets reinforced with China reed fibre prove to be ecologically advantageous if they have a minimal lifetime of 3 years compared with the 5-year lifetime of the conventional pallet. The energy consumption and other environmental impacts are strongly reduced by the use of raw renewable fibres, due to three important factors: (a) the substitution of glass fibre production by the natural fibre production; (b) the indirect reduction in the use of polypropylene linked to the higher proportion of China reed fibre used and (c) the reduced pallet weight, which reduces fuel consumption during transport. Considering the whole life cycle, the polypropylene production process and the transport cause the strongest environmental impacts during the use phase of the life cycle. Since thermoplastic composites are hardly biodegradable, incineration has to be preferred to discharge on landfills at the end of its useful life cycle. The potential advantages of the renewable fibres will be effective only if a purer fibre extraction is obtained to ensure an optimal material stiffness, a topic for further research. China reed biofibres are finally compared with other usages of biomass, biomaterials, in general, can enable a three to ten times more efficient valorisation of biomass than mere heat production or biofuels for transport.     

新型水刺复合过滤材料的开发与应用

介绍了水刺复合工艺的优点,分析了新型水刺复合滤料的三种先进形式—针刺与水刺、纺粘与水刺、机织与水刺的特点及其市场应用领域,为滤料研究提出了新的方向。     

PPS覆膜滤料的性能及应用

通过VDI滤料模拟测试装置、SEM等先进仪器对PPS覆膜滤料的性能进行测试分析,比较了常规PPS和PPS覆膜滤料性能,列举了其在燃煤电厂中的应用情况,阐明PPS覆膜滤料优异的过滤性能及工程应用效果。     

过滤捕集法处理含DEP雾废气的研究

为了探讨玻璃纤维过滤器处理含DEP雾废气的效率问题,在实验室进行了DEP雾去除实验。考查了不同气体入口浓度、过滤流速下玻璃纤维过滤捕集装置对含DEP雾废气的净化能力,结果表明:利用玻璃纤维过滤器去除DEP雾,在DEP雾粒径主要分布为0.48～3.4μm之间,DEP雾浓度小于220 mg/m3,过滤流速小于10 cm/s情况下,玻璃纤维过滤器对DEP雾的去除率大于99%,最大气体流量下的压力降小于1610Pa;同时对含油(酸)雾废气除雾效果好,特别是对于粒径特别细微的油(酸)雾,捕集效率也很高,还可回收利用,不会产生二次污染。     

Mechanical performance of woodfibre–waste plastic composite materials

Plastic products used for packaging are often discarded after a single use resulting in an inexhaustible supply of waste polymeric materials. The stiffness and strength of polymeric materials have been known to improve with the addition of lignocellulosic fibres available in abundance in nature. Hence, composite materials containing natural fibres and waste plastics would result in the reduction of solid wastes and the use of cheap, renewable resources. Composite specimens, consisting of waste plastics obtained from a Kerbside collection (high density polyethylene (HDPE) waste, Janitorial waste, Kerbside waste I and Kerbside waste II) and Pinus radiata woodfibres (medium density fibres (MDF)), have been produced through melt blending and injection moulding. The effects of fibre content, matrix type and interfacial bonding on the tensile and flexural properties of these composite materials have been determined through extensive testing at various conditions. The mechanical properties of these composites at room temperature and humidity depend on the amount of woodfibres, the mechanical properties of the waste plastics used and the presence of a suitable coupling agent. The tensile strengths of MDF/waste plastic composites do not generally change with fibre content except for 40% MDF/HDPE waste and 40% MDF/Kerbside waste II (plus 1% Epolene™) composites, where the tensile strengths increase by about 25% compared to those of the corresponding waste plastics. Flexural strengths of MDF/waste plastic composites increase with the addition of medium density fibres with the exception of MDF/Kerbside waste I composites. The tensile and flexural moduli of MDF/waste plastic composites mostly increase with increasing fibre content.