DMMC-AM水溶液共聚合及其应用的研究

研究水溶液聚合方法合成聚 2 -甲基丙烯酰氧乙基三甲基氯化铵 (DMMC) -丙烯酰胺(AM)阳离子型共聚物的方法 ;分析讨论了单体浓度、引发剂浓度和聚合体系pH值对共聚物特性粘数的影响 ;并在丙纶地毯短纤维上进行了抗静电性能实验。     

新型纺纱胶辊的研制与应用

探讨新型纺纱胶辊研制要点与应用效果。将基础理论与应用实践相结合,论述了新型纺纱胶辊的基本技术要求、胶辊改性和配方设计创新要点以及胶辊使用中表面辅助处理方法,并以应用实例说明了新型胶辊的实际纺纱效果。认为,综合运用丁腈橡胶改性技术使胶辊表面获得性能良好的摩擦聚合膜,并在使用中采用正确磨砺和表面处理方法,能够有效改善胶辊防静电、缠绕和磨损性能,获得良好的纺纱效果并延长其使用寿命,较好地满足现代纺纱技术对胶辊的技术要求。     

静电对石化工业的危害及其预防

本文首先以实例说明静电对石化工业不容忽视的危害，进而从八个方面归纳了石化工业中静电危害的预防措施，如：工艺控制、接地、增温措施、采用抗静电剂、静电消除器等。在最后一项措施中专门介绍了人体防静电安全问题。     

Electrically conductive glass fibre reinforced epoxy resin

 The research on an industrially manufactured, electrically conductive glass fibre reinforced epoxy prepreg for aviation applications is reported. In a co-operative effort between Technical University Hamburg-Harburg (TUHH) and Daimler-Benz Aerospace Airbus (DASA) a new glass-epoxy composite with both electrical and good mechanical properties was successfully developed. The electrical conductivity was achieved adding carbon black as a conductive filler into the epoxy matrix and this at a very low level of content. The range of possible applications for this new material is not only limited to aviation. It can also be used in other transport systems or in electric and electronic devices. Received: 21 July 1998 / Accepted: 28 August 1998     

一种碳膜桥的点火特性研究

以类石墨碳膜为点火材料制作了碳膜电点火桥,研究了温度对碳膜电点火桥阻值和发火性能的影响,并比较了两种常用起爆药剂的碳膜电点火桥的发火性能,同时对碳膜电点火桥进行了脚-脚间抗静电测试。结果表明:碳膜电点火桥是一类具有负温度系数、发火区间小、散步精度高、安全性高且制作简便的点火件,具有极强的应用前景。     

Modification of PA6,6 by Atmospheric Plasma and Grafting 2-hydroxy ethyl methacrylate (HEMA) to Improve Fabric Properties

Oxidative atmospheric pressure plasma was used to modify PA6,6 fabrics followed by graft copolymerization of 2-hydroxy ethyl methacrylate (HEMA) in 20% aqueous solution at 60°C for 1 h, with the aim to increase hydrophilicity, antistatic, and dyeing properties of the fabrics. Grafted PA6,6 fabrics were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The modified PA6,6 fabrics improved the moisture regain and the antistatic properties. Dyeing property of grafted fabrics was also studied.     

The investigation of antistatic effects of 1-ethyl-2,3-dimethylimidazolium ethyl sulphate for acrylic-based polymer film

This study aims to produce a long-term antistatic acrylic-based film by incorporating ionic liquid (IL), 1-ethyl-2,3-dimethylimidazolium ethyl sulphate (EIL) into acrylic resin. After loading, characterisations of samples were conducted by mechanically, thermally and morphologically. In order to determine antistatic properties, surface resistivity of samples was measured by using at different time intervals. The results indicated that IL loaded polymers showed a good antistatic property for a long time. The effect of incorporation on tensile strength, tensile modulus, flexural strength and flexural modulus of polymer were also obtained. After loading process, tensile strength, tensile modulus, flexural strength and flexural modulus values decreased considerably. The decrement in tensile strength of polymer is much less than that in flexural strength. The effect of EIL incorporation into acrylic resin on thermal conductivity and surface wettability was also investigated. From scanning electron microscopy images, EIL particles in nano-size range were observed in polymer structure.     

Multifunctional antistatic and scratch resistant UV-cured acrylic coatings

Organic–inorganic antistatic hybrid acrylic coatings were prepared. Trialkoxy-silyl ammonium salt was added to the photocurable formulations in order to introduce an antistatic additive which could be covalently linked to the hybrid network through a co-condensation reaction involving the alkoxy groups. The influence of the antistatic additive on the radical photopolymerization reaction of the acrylic resin was evaluated by real time FTIR, keeping the inorganic precursor content constant at 20 phr and increasing the trialkoxy-silyl ammonium salt in the range between 5 and 15 phr. When the samples were cured under nitrogen atmosphere, a complete conversion of acrylic double bonds was achieved after 90 s of irradiation both for the acrylic resin and the formulations containing the ammonium salt. The scratch behavior of coatings was investigated by carrying out of progressive load scratch test. The penetration depth (Pd) and the residual depth patterns were investigated for all the hybrid films. A consistent improvement of penetration resistance by increasing alkoxy-ammonium salt content was noted in terms of Pd. Inorganic component and antistatic additives increase ε′ and σ_AC values of the hybrid coatings and decrease the resistivity ones, showing their efficiency for increasing antistatic properties of coatings, improved with respect to the pure acrylic resin.     

抗静电腈纶及其技术进展

介绍了抗静电腈纶的制造方法及国内外抗静电腈纶的发展概况,对当今世界抗静电腈纶的主要生产方法进行了分析对比,对我国开发抗静电腈纶产品的方法与途径提出了建议。     

Preparation of light color antistatic and anticorrosive waterborne epoxy coating for oil tanks

Utilizing waterborne epoxy resin as a main film-forming material, a kind of light color antistatic and anticorrosive waterborne epoxy coating with volume resistivity of 10⁶ was prepared by adding light color conductive pigments and anticorrosive pigments. The coating has excellent corrosion protective and outstanding decorating properties, which is applicable for the inner coating of oil tank. The effects of the type and the amount of conductive pigments, the film thickness, the curing temperature, and the curing time on the volume resistivity of the film were discussed. The properties of the several kinds of waterborne epoxy resin were compared and the determining of anticorrosive pigments was discussed.