Modification of rapeseed oil by ethoxylation and hydroxylation and its use as fatliquoring agent;
菜籽油的羟化乙氧基化改性与加脂应用
Study on Ethoxylation of Fatty Alcohol Catalyzed by Lipase;
脂肪酶催化脂肪醇乙氧基化研究
Influence of molding technics on particle of Al-Mg composite oxide (MAO) in ethoxylation;
成型工艺条件对粒状镁铝复合氧化物催化乙氧基化的影响
It is shown that optimal temperature for the catalytic synthesis is about 200 ℃,that optimal time is 10 hours,the optimal dosage of the catalyst is 5%,Under the experimental conditions,the yields of ethoxyquin is up to 48.
以对氨基苯乙醚和丙酮为原料在SO24-/TiO2-SnO2固体超强酸催化作用下,通过Michael加成合成了乙氧喹啉;并分别采用固定床、常压流动床、高压流动床对其合成工艺、反应条件进行了研究和探讨。
The main chain of the comb polymer was hydrophobic polythene segments;and the side chain was polyalkylene oxide.
以乙烯-乙烯醇共聚物(EVOH)为原料,制备了一种主链为疏水的聚乙烯链段,侧链具有亚乙氧基结构的多羟基梳形聚合物,用元素分析法、凝胶渗透色谱法、核磁共振谱法对其进行了结构表征;用热重分析法和示差扫描量热法对其热学性能进行了表征。
It was discussed that the main factors having effect on the vulcanization time of RTV block methyl silicone rubber, such as the mol ratio of ethoxyl and silicone hydroxyl, the pH value of methyltriethoxysilane, and the content of iron ions impurity in methyltriethoxysilane, temperature, moisture, and the quantity of catalyst.
讨论了影响甲基嵌段室温硫化硅橡胶硫化时间的主要因素,如:乙氧基与硅羟基的量之比,甲基三乙氧基硅烷低聚物的pH值、铁离子的含量,以及温度、湿度和催化剂的用量等;并介绍了预防和控制这些影响因素的方法。