丙烯腈

One practical package of technological formula and parameter about electroplating tinting for ABS plastic are provided, including stress riddance, unoil, coarsing, sensitization, activating, revive treatment, and five-colored electroplating tinting .

介绍(丙烯腈/丁二烯/苯乙烯)共聚物制品的表面预处理、化学镀铜、电镀光亮铜和镀铜层着色等工艺，提供了一整套ABS 电镀着色的实用配方和工艺参数，包括去应力、除油、粗化、敏化、活化、还原处理及镀铜层五色系实用着色等。

Carbon nanofibers with diameters in the range of 100nm to 300nm were obtained by stabilizing and carbonizing electrospun polyacrylonitrile precursors.

通过稳定化、炭化静电纺制的聚丙烯腈前驱体纤维制备了直径为100nm～300nm 的纳米炭纤维。

Waterborne antirust paint wasprepared using hulyl-aerylate/styrene/acrylonitrile(coded as BA/St/AN) latex ropolymer. The effects of the variety and amount of the antinist pigments and dispersant on the performance of the paint ana its coaling were investigated.

基于自制的丙烯酸丁酯/苯乙烯/丙烯腈共聚乳液，制备了一种性能优异的水性防锈涂料，研究了防锈颜料和润湿分散剂的种类、用量对涂料及其漆膜性能的影响。

Further, the method for producing acrylamide of the present invention is characterized by hydrating acrylonitrile having a concentration of acrolein of 1 ppm or less by a microbial cell containing a nitrile hydratase or a processed product of the microbial cell in an aqueous medium.; Furthermore, the method for producing an acrylamide-based polymer of the present invention is characterized by homopolymerizing the acrylamide or by copolymerizing the acrylamide and at least one unsaturated monomer copolymerizable with the acrylamide.

本发明的制备丙烯酰胺的方法的特征在于，用含有腈水合酶的微生物的菌体或该菌体处理物使丙烯醛浓度为1ppm以下的丙烯腈在水性介质中进行水合反应。本发明的制备丙烯酰胺类聚合物的方法的特征在于均聚所述丙烯酰胺，或共聚所述丙烯酰胺和能与丙烯酰胺共聚的至少一种不饱和单体。

During the stabilization step, the polyacrylonitrile fiber shrinks as well as disorients in the direction of fiber axis.

在聚丙烯腈纤维不熔化过程中，由于受到热作用，分子链沿纤维轴向发生热收缩，分子解取向。

In order to solve chromium waste water by means of electrolyzed deoxidation, we apply polyacrylonitrile carbon blanket as pole, graphite as bipolar plate, positive ion film as diaphragm, to an oxidation-reduction system, in which negative pole electrolyzes and reduces chromium waste water; meanwhile, oxides Fe~{2+} into Fe~{3+} in positive pole.

为了电解还原处理含铬废水，以聚丙烯腈碳毡作电极，石墨板作双极板，以阳离子交换膜为隔膜，组装出氧化还原电池系统。此系统阴极电解还原处理含铬废水，同时阳极氧化Fe2+为Fe3+。电池系统的平均电流效率达92.29%，处理后废水中铬含量小于10-5mol/L，达到国家排放标准

The carbon fiber felts were firstly introduced into electromagnetic functional composites in this study.

本研究首次将碳纤维毡引入电磁功能复合材料，对国产聚丙烯腈基、沥青基以及粘胶基碳纤维毡在表面金属电沉积、微波吸收复合材料和电磁屏蔽复合材料等方面的应用做了较为系统的研究。

C for 2-3 hours;(2) fiber-grafted polymer preparation, mixing activated fiber material, phenylethene, acroleic acid, acrylic nitrile, acrylamide, potassium peroxodisulfate and water evenly, proceeding reaction at normal pressure and 50-60 Deg.

II。纤维素接枝聚合物材料的制备，将步骤I制备的活化纤维材料、苯乙烯、丙烯酸、丙烯腈、丙烯酰胺、过硫酸钾和水混合均匀，在常压、50～60℃聚合反应2～4小时，所得反应产物进行干燥。

The main factors that can affect the strength of base PAN fiber and how its hydrolysis reaction happened in alkaline conditions were discussed.

应用红外光谱仪、元素分析仪、比表面分析仪等对基体聚丙烯腈纤维及其部分水解PAN-COOH型离子交换纤维进行了表征，讨论了影响基体PAN纤维强度的主要因素和碱性条件下的水解反应获得了干态水解PAN纤维的性能指标：强度8.3 cN/dtex，交换容量0.26 mmol/g ， BET比表面积为0.58平方公尺/g的PAN-COOH型离子交换纤维，并较为详细地讨论了该纤维氰基转化成羧基的比率，羧基在纤维表面的排列及最大水解量。

N-Benzylacryl amide was synthesized using acrylonitrile and benzyl alcohol as raw materials and sulfuric acid as catalyst.

以丙烯腈和苯甲醇为原料，浓硫酸作催化剂，合成了N-苄基丙烯酰胺。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。