Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of phosphate polyether type viscosity reducer and phosphate polyether type viscosity reducer
The invention provides a preparation method of a phosphate polyether type viscosity reducer and the phosphate polyether type viscosity reducer, and the preparation method of the phosphate polyether type viscosity reducer comprises the following steps: mixing and reacting a pypocholoride aqueous solution and a polyether macromonomer aqueous solution, adding phosphorous acid, heating, and obtaining the phosphate polyether type viscosity reducer after the reaction is completed. According to the preparation method of the phosphate polyether type viscosity reducer, polyether macromonomers are subjected to an addition reaction, end-group chlorinated polyether is efficiently obtained, then phosphorylation reaction is carried out, phosphorus atoms of phosphorous acid with lone electron pairs react with electrophilic chlorinated carbon atoms, trivalent phosphorus is changed into pentavalent phosphorus, carbon-phosphorus bonds are directly formed, and the phosphate polyether type viscosity reducer is obtained. The reaction efficiency is relatively high. In addition, a carbon-phosphorus bond has hydrolysis resistance, and compared with a phosphate group formed by esterification, the chemical property is more stable. Compared with Mannich reaction, the method has the advantage of simple process.
本发明提供了一种磷酸基聚醚型降粘剂的制备方法和磷酸基聚醚型降粘剂，该磷酸基聚醚型降粘剂的制备方法包括以下步骤：将次氯酸盐水溶液与聚醚大单体水溶液混合反应，加入亚磷酸，加热，反应完成后，制得所述磷酸基聚醚型降粘剂。本发明的磷酸基聚醚型降粘剂制备方法将聚醚大单体经过加成反应，高效率获得端基氯代聚醚，然后进行磷酸化反应，带孤电子对的亚磷酸的磷原子与亲电性的氯代碳原子之间进行反应，三价磷变为五价磷，直接形成碳‑磷键，反应效率较高。此外，碳‑磷键具有耐水解性，与酯化形成的磷酸基团相比，化学性质更稳定。与曼尼希反应相比，具有工艺简单的优势。
Preparation method of phosphate polyether type viscosity reducer and phosphate polyether type viscosity reducer
The invention provides a preparation method of a phosphate polyether type viscosity reducer and the phosphate polyether type viscosity reducer, and the preparation method of the phosphate polyether type viscosity reducer comprises the following steps: mixing and reacting a pypocholoride aqueous solution and a polyether macromonomer aqueous solution, adding phosphorous acid, heating, and obtaining the phosphate polyether type viscosity reducer after the reaction is completed. According to the preparation method of the phosphate polyether type viscosity reducer, polyether macromonomers are subjected to an addition reaction, end-group chlorinated polyether is efficiently obtained, then phosphorylation reaction is carried out, phosphorus atoms of phosphorous acid with lone electron pairs react with electrophilic chlorinated carbon atoms, trivalent phosphorus is changed into pentavalent phosphorus, carbon-phosphorus bonds are directly formed, and the phosphate polyether type viscosity reducer is obtained. The reaction efficiency is relatively high. In addition, a carbon-phosphorus bond has hydrolysis resistance, and compared with a phosphate group formed by esterification, the chemical property is more stable. Compared with Mannich reaction, the method has the advantage of simple process.
本发明提供了一种磷酸基聚醚型降粘剂的制备方法和磷酸基聚醚型降粘剂，该磷酸基聚醚型降粘剂的制备方法包括以下步骤：将次氯酸盐水溶液与聚醚大单体水溶液混合反应，加入亚磷酸，加热，反应完成后，制得所述磷酸基聚醚型降粘剂。本发明的磷酸基聚醚型降粘剂制备方法将聚醚大单体经过加成反应，高效率获得端基氯代聚醚，然后进行磷酸化反应，带孤电子对的亚磷酸的磷原子与亲电性的氯代碳原子之间进行反应，三价磷变为五价磷，直接形成碳‑磷键，反应效率较高。此外，碳‑磷键具有耐水解性，与酯化形成的磷酸基团相比，化学性质更稳定。与曼尼希反应相比，具有工艺简单的优势。
Preparation method of phosphate polyether type viscosity reducer and phosphate polyether type viscosity reducer
磷酸基聚醚型降粘剂的制备方法和磷酸基聚醚型降粘剂
WANG WENQI (Autor:in) / LIU ZHAOYANG (Autor:in) / LI HEBING (Autor:in) / YANG CHENGDA (Autor:in) / SONG XIN (Autor:in) / JIN TIAN (Autor:in) / LI XIXI (Autor:in) / WU WEI (Autor:in) / GONG BIWEI (Autor:in) / WANG LONGFEI (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
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