查询词典 cosolvent

According to the orthogonal experiments, the optimal transesterification conditions for rapeseed oil and methanol catalyzed by sodium methoxide were obtained: molar ratio of methanol to oil 6:1, amount of catalyst CH3ONa 1.2% of the oil weight, molar ratio of the cosolvent isopropylether to oil 1.2:1, reaction temperature 60℃, reaction time 80 min, the low speed of mixing intensity 120 rad/min, The yield of biodiesel was 96.45%.

通过正交试验得出菜籽油与甲醇酯交换反应的最优条件为：醇油比为6：1，甲醇钠催化剂用量为油重的1.2%，共溶剂与油的摩尔比为1.2：1，反应温度60℃，反应时间80min，低速120r/min搅拌强度下，转化率达到96.45%。

Moreover, the partial molar volumes of the solutes related with molecule size and space structure of the cosolvent.

在实验的基础上运用美国MIS公司开发的Materials Studio软件对超临界状态下的混合二元体系径向分布函数进行分子动力学模拟。

Through visible wavelength and the UV spectrum analysis, the transmittance is found declined as the mass transport and the cosolvent concentration increases and the cut-off wavelength tends to shift to long wavelength.The FTIR spectrum analysis shows that tin dioxide particulates and PMMA has no obvious surface bonding. Therefore, no new absorption peak is found and so do the change shown on the wave shape.

经由可见光及紫外光穿透光谱分析，发现其穿透率随质传温度及氯化锡/甲醇潜溶剂浓度增加而下降，且截止波长有往长波长移动的现象；经红外光光谱分析，析出的二氧化锡颗粒与PMMA并没有明显的界面键结，故并无新的吸收峰出现，波形改变不明显。

The study investigats the mass transport and hydrolysis behavior for poly in various concentrations of methanol/ tin chloride (SnCl2·2H2O) cosolvent between 40℃ to 60℃. Furthermore, by using the successfully manufactured poly/ tin dioxide nano composites, the mechanical, optical and thermal properties are investigated.

中文摘要本研究系探讨在不同质传温度(40℃~60℃)下，聚甲基丙烯酸甲酯於不同浓度之氯化锡/甲醇潜溶剂(0g/100g、3g/100g、5g/100g、7g/100g及9g/100g)中的质传及水解行为，并利用成功制得之聚甲基丙烯酸甲酯/二氧化锡奈米复合材料，进一步探讨奈米复合材料之光学性质、机械性质及热性质。

But with the increase of mol% of the cosolvent, the critical pressure of ternary system close to a constant value.

但是三元体系的临界压力随着共溶剂浓度的增加，趋于一个固定值。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐