硅酸

硅酸及其盐的研究Ⅶ.一个较完全的N曲线

Studies on silicic acid and its salts & ⅶ . a more complete n-curve

本文在较广PH值范围研究了多价离子对硅酸聚合速度的影响。实验证明，硅酸聚合中的盐效应具有静电效应和化学反应两种机理。

This paper reports the effect of polyvalent ions on the rate of polymerization of silicic acid .

这个地区有大量的硅酸铝。

There are large amounts of aluminum silicate in the area .

植物硅酸体AMS~（14）C测年和同位素分析黄土热释光测年问题

AMS ~ ( 14 ) C Dating and Isotopic Analysis of Phytoliths ON THERMOLUMINESCENCE DATING OF LOESS

Ca（OH）2对碱-硅酸反应的影响

Effect of ca ( oh ) _2 on alkali & silica reaction

高功率脉冲抽运Q开关掺钕硅酸氧镧钙激光器评价

Evaluation of CaLaSOAP : Nd for high-power flash-pumped Q-switched lasers

C2S对硬硅钙石型硅酸钙保温材料质量影响

Quality Effect of Xonotlite-type Calcium Silicate Thermal Insulation Materials by C_2S

聚丙烯酸酯乳液和硅酸钠处理木质素与PVC的共混

Blending of PVC and Lignin Treated with Sodium Silicate and Emulsion of Polyacrylate

硅酸对土壤pH及氮矿化速率没有影响。两种硅肥对施入土壤中氮的去向均无明显影响。

Silicic acid had no effect on soil pH , ammonium accumulation and the rate of N mineralization .

本文研究了几种不同酸pH值对硅酸胶结的影响。

ABSTRACT : This paper undertakes the research of the effect of acids with various PH val-ues on silica cementation .

研究了硅酸在不同pH条件下，乙酸存在时的形态分布及转化特征。

The species distribution and transformation characteristics of polysilicate species in different pH values was studied when acetic acid compound exists .

硅酸及其盐的研究&ⅩⅤ.~（29）SiNMR谱研究溶液中的硅酸钠

Studies on silicic acid and its salts ⅹⅴ . ~ ( 29 ) si NMR study of sodium silicate in solution

硅烷偶联剂作为一种具有特殊性质的分散剂，对从正硅酸乙酯水解制得的SiO2微球形态会产生很大的影响。

With different added sequence of silane coupling agents , the morphology of silica spheres can be controlled .

SiO2粒子粒径尺寸可通过调节水与表面活度剂分子数之比m、水与正硅酸乙酯分子数之比n控制。

The diameter of the obtained SiO 2 particles is related to the molecule number ratios of water to surfactant and water to TEOS .

分解率大小的比较表明，水合硅酸钙在苛性碱溶液中的稳定性明显大于dηSiO2为水合在碳酸钠溶液中的稳定性。

The comparison on decomposition ratio in different solution indicate that calcium hydrate silicate is unstable in soda solution .

聚合氯化铝的COD去除率和三氯化铁最高，而硅酸钠的COD去除率最低。

COD removal rate of trichloro-iron and polymeric aluminium chloride is most high , while COD removal rate of sodium silicate is most low .

将硅酸钠、其他添加剂等加入含铝溶解液中进行原料配比和聚合熟化条件优化，最终制备出聚合硅酸硫酸铝（PASS）无机高分子絮凝剂。

Under high shear mixing condition , water glass and other additives were added to the aluminum solution , then after polymerizing and ageing , the flocculants of PASS was produced .

硅酸铋（BSO）晶体的空间生长

Crystal Growth of Bismuth Silicon Oxide ( BSO ) in Space

本文用DTA法研究了氟硅酸钠分解锆英砂的条件。

In this paper , the condition of zircon decomposition in the presence of sodium fluosilicate is studied by DTA .

以正硅酸乙酯为原料，乙醇为溶剂，盐酸为催化剂制备了SiO2溶胶封孔剂。

SiO_2 sol sealing agent was prepared from tetraethoxysilane ( TEOS ) by ethyl alcohol as solvent and hydrochloric acid as catalyst .

通过溶胶凝胶法，在碱性条件下水解缩聚正硅酸乙酯获得含有SiO2颗粒的溶胶；

A sol containing SiO_2 particles was prepared by the base catalyzed hydrolysis and polycondensation of tetraethoxysilane ( TEOS ) through sol-gel process .

为制备出适用于电子墨水的白色电泳颗粒，采用控制正硅酸乙酯在氨水-乙醇溶液中的水解来合成SiO2颗粒。

In order to prepare white electrophoretic particles , SiO_2 particles were prepared by hydrolysis of ethyl orthosilicate in ammonia / alcohol solution .

以正硅酸乙酯（TEOS）为硅源，采用酸碱二步催化溶胶-凝胶法，结合超临界干燥技术制备了超低密度SiO2气凝胶。

The two-step ( acid-base ) sol-gel process is employed to prepare SiO_2 aerogels with TEOS as the precursor .

本文制备了担载在Al2O3上的十二钨硅酸（SiW（12））为前身态的加氢脱氮催化剂。用XRD、IR表征了催化剂的表面结构。

In this paper , 12-silicotungstic acid ( SiW12 ) supported on Al2O3 as catalyst precursor of hydrodenitrogenation ( HDN ) was prepared by incipient impregnation method .

为了适应中性松香造纸施胶的发展，聚合氯化铝（PAC）、碱式聚合硅酸硫酸铝（PASS）、聚胺和硫酸铝-阳离子聚合物体系等新沉淀剂被开发和研究。

New retention aids , polyaluminium chloride ( PAC ), polyaluminium silicate sulfate ( PASS ), polyamines and alum_cationic polymer system have been developed for neutral rosin sizing .

并利用Zeta电位测定及红外技术对聚硅酸硫酸铝絮凝剂（简称PSAS）的絮凝机理加以分析探讨。

And the flocculent mechanism of PSAS was discussed through Zeta potential analysis and infrared spectrum technique .

结果表明，添加合适的外加组分，常温下MgO-SiO2-H2O体系具有比较优异的胶凝性能，其水化产物主要是非晶态的水化硅酸镁和Mg（OH）2；

The result showed that MgO and Microsilica could react at room temperature which gave a hardened product primarily comprised of Mg ( OH ) _2 and gel magnesium silicate hydrate ( M-S-H ) .

在适宜的pH和药剂用量时，氟硅酸钠、十二烷基苯磺酸钠和月桂酸钠对滑石在水介质中的分散有一定的作用，它们可以将滑石的分散率提高3%～5%。

Sodium fluorosilicate , sodium dodecyldenzenesulfonate ( DBS ) and sodium lauric acid exhibit some effects on dispersion of talc particals in liquid , and the dispersion ratios increase 3 % ~ 5 % approximately .

LiOH对碱-硅酸反应产物膨胀行为的影响

Influence of LiOH on the Expansive Behavior of Alkali-Silica Reaction Product

对硅酸二钙（Ca2SiO4简写为C2S）掺杂，可以影响它的微观结构、多晶转变、烧成速度等。

Adding impurities to β - C2S can affect its microstructure , polycrystalline transfer and rate of firing reaction . Being hard dry powder .