PVC密封条静电植绒胶粘剂的研制

用ＰＶＣ０密封条静电植绒胶粘剂的合成工艺及应用效果进行了论述，并以本产品与国外同类产品的使用性能进行了对比讨论，证明了该产品具有广泛的应用前景。     

静电植绒胶粘剂的合成与应用

介绍了自交联自增稠型丙稀酸乳液大面积植绒和圆网印花植绒粘合剂的合成、性能及其在植绒生产中的应用,使用该粘合剂生产的植绒产品具有优良的耐磨牢度和柔软的手感。     

EVA乳液型静电植绒胶粘剂

EVA乳液型静电植绒胶粘剂应用于静电植绒具有烘干温度低、烘干时间短、剥离强度大、柔软性较好、无气味、无污染、操作方便、成本低等特点。     

静电植绒胶粘剂的制备

一、概述静电植绒就是在高压静电场的作用下,用胶粘剂将各种纤维绒毛植附于基材表面,经烘干、焙固等工艺过程,即可得到类似毛制品的植绒产品。这种产品手感好,可制成各种衣料、地毡及工艺品等。目前,影响这种植绒产品质量的关键是基材表面的胶粘剂。在我国,这种胶粘剂的质量极不稳定,主要依赖从日本等国进口。为了满足国内静电植绒行业的迅猛发展,我们制备了丙烯酸酯类乳液型植绒胶粘     

MBA高强度静电植绒胶的研制

本文介绍了MBA高强度静电植绒胶的配方,制备方法及植绒条件;讨论了反应性单体A用量对乳液增稠及反应性单体A、交联剂和主单体配比变化对植绒产品摩擦牢度的影响。同其它胶粘剂对比,MBA胶具有较佳使用性能。     

静电植绒粘合剂的研制

介绍了由丙烯酸丁酯和丙烯酸β－羟乙酯等合成自交联丙烯酸酯乳液的合成工艺。     

Z98丙烯酸酯静电植绒乳液胶粘剂的研究

介绍了静电植绒丙烯酸酯乳液胶粘剂的合成方法,通过加入内交联单体而提高乳液胶粘剂的耐洗性和耐磨性,制得固含量３８％－４０％〈ｐＨ值６．５－７．５,粘度８－１３Ｐａ．ｓ,牢度符合国标的胶粘剂。     

静电植绒用双组份聚氨酯粘合剂的研制

用双预聚工艺制备了静植绒用无溶剂双组份聚氨酯粘合剂，讨论了原料等因素对组份粘度、固化速度、植绒牢度、手感的影响。     

丙烯酸酯静电植绒胶的研制与应用

以水为溶剂，通过多种丙烯酸酯类单体的聚合，制得散电植绒胶粘剂，产品无毒无害，增稠性好，易于上胶，利用该胶制成的植绒布外表美观，手感舒适，耐磨，耐擦洗。     

高压静电技术杀菌灭藻研究及机理分析

高压静电场具有良好的杀菌灭藻效果,当工作电场强度为20kV/m,作用6h以上时,杀菌率可达91.3%,作用14d以上,灭藻率可达100%。研究表明水经高压静电场处理后,电导率、溶解氧、pH值等物理化学参数发生显著变化,杀菌灭藻机理为超氧阴离子自由基、过氧化氢破坏细胞的生存条件所致。     

乳液型ABS抗氧剂的研制

用高相对分子质量酚类主抗氧剂和具有碳自由基捕捉剂的辅助抗氧剂、表面活性剂、消泡剂、增稠剂与水通过研磨并加以复配的方法。研制出一种用于乳液聚合工艺生产ABS树脂的乳液型抗氧剂。由于该抗氧剂无需添加乳化剂即能均匀分散在丙烯腈／丁二烯／苯乙烯三元共聚物（ABS）胶乳中。在简化液体抗氧剂加入步骤的同时,改善了抗氧剂与胶乳的混合效果,使抗氧剂在ABS胶乳中的氧化诱导期延长约10％。乳液型ABS抗氧剂配方为：w（主抗氧剂A）22％;w（辅助抗氧剂B）11％;w（分散剂C）=3％：w（增稠剂D）1％;w（水）63％;w（消泡剂）为以上混合物料的0．05％。     

Artificial Neural Networks Associated to Calorimetric Measurements Used as a Method to Predict Polymer Composition of High Solid Content Emulsion Copolymerizations

Summary: Inspired by biological systems, artificial neural networks (ANN) have demonstrated to be powerful tools to model non‐linear systems, such as high solid content latexes produced by emulsion polymerization which have a great importance in the polymeric industry, essentially for environmental reasons, since they usually have water as a continuous phase. The quality of the produced polymer is closely related to the structure of the polymeric chain. In order to propose technical and economically feasible alternatives to control a polymeric structure, this work is aimed to develop a new methodology based on ANN associated with calorimetry to predict the polymeric structure. The designed ANN presented excellent results when tested with process condition variations (such as temperature and reaction time) as well as when they were submitted to test concerning the variation on the proportion of monomers in the latex formulation. Hence, it was possible to conclude that ANN, associated to calorimetry, lead to an efficient method to predict the polymer composition in emulsion copolymerizations.

     

旋转圆筒型过滤器精密平衡过滤O/W乳浊液特性研究

以油分（煤油）浓度较低的（ｋｅｒｏｓｅｎｅ）Ｏ／Ｗ（ｗａｔｅｒ）乳浊液为对象,通过旋转圆筒型过滤器进行精密过滤,对影响平衡过滤的油分滤饼层的压缩性,以及过滤速度与诸操作因子间的关系进行了探讨。结果表明高速旋转的圆筒型过滤膜对附着在过滤膜表面的滤饼产生很大的扫流力,具有不断扫流过滤膜表面上生成的滤饼的特性,因此对难过滤性Ｏ／Ｗ乳浊液进行高速精密过滤具有广泛的实用价值。     

低热值燃料发电企业发展热电联产的探讨

为提高低热值燃料发电的热效率 ,应根据煤矿用户热能需求情况将低热值燃料发电厂改为热电联产电厂 ;具体论述了这种改造的必要性与可能性以及几种改造方式。     

The Apoptotic Effect of Caffeic or Chlorogenic Acid on the C32 Cells That Have Simultaneously Been Exposed to a Static Magnetic Field

The induction of apoptosis is one of the main goals of the designed anti-cancer therapies. In recent years, increased attention has been paid to the physical factors such as magnetic fields and to the natural bioactive compounds and the possibilities using them in medicine. Hence, the aim of this study was to evaluate the anti-tumor effect of caffeic or chlorogenic acid in combination with a moderate-strength static magnetic field on C32 melanoma cells by assessing the effect of both factors on the apoptotic process. The apoptosis of the C32 cells was evaluated using a flow cytometry analysis. The expression of the apoptosis-associated genes was determined using the RT-qPCR technique. The caspase activity and the concentration of the oxidative damage markers were also measured. It was found that phenolic acids and a static magnetic field trigger the apoptosis of the C32 cells and also affect the expression of the genes encoding the apoptosis regulatory proteins. In conclusion, our study indicated that both of the phenolic acids and a static magnetic field can be used supportively in the treatment of melanoma and that caffeic acid is more pro-apoptotic than chlorogenic acid.     

Can isotopic transient and formal steady-state kinetics lead to a converging surface chemistry analysis? Case study on the selective reduction of NO by CH4 over Co-ZSM-5 catalysts

The surface coverage analysis derived from two formal steady-state kinetic models is compared to values directly obtained from steady-state isotopic transient analysis (SSITKA) for the selective catalytic reduction (SCR) of NO by CH₄ over Co-ZSM-5 catalysts. It is shown that the most abundant reacting intermediates are NO _x adspecies, though no clear differentiation between the various adspecies identified by DRIFT spectroscopy was achieved. Less numerous carbon containing adspecies were identified and quantified in the reacting system, essentially as methoxy species. Nitromethane-like intermediates remained undetectable due to a very rapid transformation into N₂ and CO₂. On the basis of these converging kinetic analyses related to each elementary step of the SCR process, a microkinetic model can be derived, which allows describing transient operation, in view of a non steady-state application.