绿色环保纤维的开发与应用

介绍了目前国内外绿色环保纤维开发应用现状及其发展趋势，并对几种绿色纤维进行了详细介绍．     

光辐射在光学纤维波导中的传输

从麦克斯韦方程出发，讨论了光学纤维波导中光辐射场的解，得到光辐射在光学纤维波导中的传播特征。     

气相生长碳纤维的制备

以苯和氢气为原料在石墨,陶瓷等基板表面催化热解制取低成本,高性能的气相生长碳纤维（ＶＧＣＦ）,实验考察了催化剂类热解温度、热解时间,苯带入量,载气,基板材料等参数对ＶＧＣＦ生长情况及性能的影响,并提出了碳纤维的生长机理。结果表明,在合适条件下,用直接播种法制得的ＶＧＣＦ直径为０．７￣１０μｍ,长度为１￣５μｍ,采用金属原子溅射沉积的基板可得到均匀稠密的ＶＧＣＦ,直径为３￣８０μｍ,碳纤维的生长过程     

水解法制备高吸水腈纶正交实验

对腈纶纤维的水解工艺进行研究．正交实验结果表明，实验范围内，水解时间是影响腈纶纤维吸水率的关键因素，随着时间的延长，吸水率增加；水解温度80℃时吸水率较高；NaOH浓度对水解腈纶的吸水率也产生较大的影响．温度、时间和NaOH浓度都会对纤维白度产生影响．     

光纤Bragg光栅传感器在土木工程中的应用

在介绍了光纤Bragg光栅传感器的基本原理和解调方法后，对光纤Bragg光栅传感器在土木工程中的国内外的应用作了详细的综述，探讨了光纤Bragg光栅传感器用于土木工程检测时的一些关键问题，指明了其广阔的应用前景。     

互相位调制对密集波分复用系统性能的影响

介绍了密集波分复用技术及互相位调制的基本理论，通过计算机模拟，具体分析了互相位调制对密集波分复用系统性能的影响，并就抑制互相位调制，改善系统性能提出了有用的建议。     

聚乙烯醇纤维和维尼纶纤维增强水泥石的研究

以聚乙烯醇纤维和维尼纶纤维为增强纤维，研究了水化时间、养护方式和纤维对水泥石力学性能的影响。发现：随着水化时间的延长，水泥石力学性能提高；养护方式影响素水泥石的力学性能，但较小影响纤维增强水泥石的力学性能；少量纤维加入到水泥基体中，能有效提高水泥石的力学性能；较高强度模量的聚乙烯醇纤维的增强增韧效果优于较低强度模量的维尼纶纤维。     

Effects of Some Additives on the Adhesion of Polyacrylamide Sizes to Fibers

IntroductionPolyacrylamide ( PAM) size is one of the sizeingredients that are commonly used in conventionalfor mulations for warp sizing and paper making .It has theproperties of adhering to fibers and can be capable ofholding fiber together by surface attachment . Comparedwith starches and polyvinyl alcohols , PAM possesses suchcapability as excellent adhesion to cellulose fibers . Thiscapability ,however ,is not due to chemical valence ;but isdeveloped only through hydrogen bonds and Van …     

Preparation and Characterization of Organic/Inorganic Hybrid Nanofibers

A new class of nanocomposites based on organic and inorganic species integrated at a nanoscale has obtained more attention these years. Organic-inorganic hybrids have both the advantages of organic materials, such as light weight, flexibility and good moldability, and inorganic materials, such as high strength, heat stability and chemical resistance. In this work, PVAc/TiO2 organicinorganic hybrid was prepared by sol-gel process. Eiectrospinning technique was used to fabricate PVAc/TiO2 hybrid nanofibers. The structures and properties of the hybrid nanofibers were characterized by Scanning Electron Microscopy （SEM）, Atomic Force Microscope （AFM）, Differential Scanning Calorimeter （DSC） and Fouriertransform infrared （FTIR） spectra. SEM and AFM were employed to study the topography of the hybrid nanofibers. The chemical structure of the hybrid nanofibers were examined by FTIR. The DSC scans revealed the second order transition temperature of the hybrid materials were higher than PVAc.