国产v亚洲v日韩v欧美在线观看,免费无码 国产在线91下载,国产永久免费高清在线,亚欧洲乱码视频一二三区

新聞資訊


06

2023

-

07

二丙二醇甲醚醋酸酯的合成研究


Dipropylene glycol methyl ether acetate (DPMA) is a material contains polar groups and non polar group , has good ability of dissolving and coupling, commonly used in solvent based coatings and screen printing ink.Using dipropylene glycol methyl ether and acetic acid as raw material, under the catalysis of solid acid, via esterification reaction to generated crude product and its high purity DPMA after distillation .Using single factor method and orthogonal test method to study the effects of catalyst types and dosage, reaction temperature, reaction time, material ratio and other factors on propylene glycol methyl ether acetate yield and finally determine the suitable process conditions . At the same time, the structure of the compound was identified by means of FT-IR, NMR and GC-MS.

凤阳县| 新泰市| 定日县| 吉林省| 平果县| 阿克苏市| 栖霞市| 马龙县| 城步| 北宁市| 浦城县| 内黄县| 田东县| 西充县| 弥勒县| 华池县| 屏边| 秀山| 巴马| 尉犁县| 赤城县| 天镇县| 河北省| 宁河县| 苗栗市| 天峻县| 砚山县| 佛冈县| 濮阳县| 太仓市| 吉林市| 桃园县| 延川县| 新兴县| 漳浦县| 洪洞县| 呼图壁县| 庄浪县| 英德市| 宜兴市| 宕昌县|