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Some problems, such as serious pipe corrosion and unstable acid-base property, and the solutions are presented.

提出目前存在着管线腐蚀严重、水的酸碱性不稳定等问题及解决的方法。

The purpose and use of the label itself is to select ink unneglected factors, such as coplasticizer lavation products on the label, require ink with good acidproof of alkalescence, fat; labels in the open air, heat and the rain suffer the test of time in the choice of ink should pay attention to in the fast light, waterproof, heat-resistant, resistant to acid-base in the areas of performance.

标签的用途及使用环境也是选择油墨不可忽视的因素,如日化洗涤品上所用的标签,要求油墨具有良好的耐酸碱性、耐油脂性等;在户外使用的标签,要经受风吹日晒雨淋的考验,在选择油墨时必须注重在耐光、耐水、耐高温、耐酸碱等方面的性能。

On the basics of briefly summarizing the research and application presents of building coatings and nano-composite building coatings in domestic and overseas, we presented a creative approach of modified exterior and interior building latex coatings applying inorganic nano-powders and its compound, systematically studied the effect of factors such as nano-material's category、additive capacity、dispersing method on the behavior of exterior building coating's weathering resistance、scratch resistance、water resistance、alkaline resistance and on the behavior of interior building coating's restraining bacterium、degrading all kinds of bad organic matter,and triumphantly developed nano-composite building latex coating.

本文在简要叙述国内外建筑涂料和纳米复合建筑涂料的应用研究现状的基础上,提出了使用无机纳米粉体及其复合材料改性建筑外墙乳胶漆的创新思路,系统地研究了纳米粉体材料的种类、添加量、分散方式等因素对外墙乳胶漆耐候性、耐洗刷性、耐水耐碱性等性能的影响,以及这些因素对内墙乳胶漆抗菌杀菌、降解有害有机物等性能的影响,成功地开发了纳米改性建筑外墙和内墙乳胶漆产品。

In this paper, adipate -intercalated LDHs were prepared by direct anion exchange method,acidic one step synthesis method and alkaline one step synthesis method,and were characterized by XRD and IR.

采用阴离子直接交换法、酸性和碱性条件下原位一步合成法分别制备了Mg2Al-己二酸根插层水滑石,用XRD、IR对合成的样品进行了组成和结构表征,DTA结合不同温度下焙烧样品的XRD和IR分析研究了样品的热分解过程。

This is during the time Kangyu biologic activity function mug store water, which change water into alkalescence.

这是康宇牌生物活性功能杯在装入开水瞬间,能让水变成弱碱性离

It was found that solvent pyridine plays an important role in the formation of nanocrystalline nickel selenides due to its appropriate coordinative ability and alkalescence.

又在50℃的温度下,在吡啶溶剂中以水和肼为还原剂,得到了Ni〓Se和NiSe〓,纳米晶溶剂吡啶由于具有合适的配位能力及碱性而在反应中起了关键作用。

The alkalinity of water is a measure of its capacity to neutralize acids.

水的碱性是它中和酸的能力的一种量度。

Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南红豆杉中抗癌活性物制备工艺研究方法:利用正交设计试验L9(3~4)确定原料药提取工艺为:10倍量90%乙醇提取两次,第一次40分钟,第二次30分钟;醇提液用10倍量水沉;沉淀加6倍量石油醚40℃脱脂;用1mol/L的NaOH溶液碱洗,除去酸性杂质;以碱性氧化铝柱,以环己烷/丙酮为洗脱溶剂,在环己烷-丙酮(6:4)段富集到所需活性部位,洗脱剂用量为3VB。

Organization: Institute of Chemical Engineering and Environment, Qingdao UniversityAbstract: A new Schiff base and its cupric complex of L-lysine and anisaldehyde were synthesized by stepwise synthesis method in anhydrous system, with basic essential amino acid L-lysine and natural product anisaldehyde as precursor.

摘 要:以碱性必需氨基酸L-赖氨酸和天然产物茴香醛为前体物,采用分步合成法在无水体系中制备了L-赖氨酸缩茴香醛单席夫碱及其铜配合物。

Structural water in anorthoclase megacrysts from alkalic basalts: FTIR and NMR study.

2000d。碱性玄武岩中长石巨晶的结构水:红外光谱和核磁共振谱研究。

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