Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-molecular-weight macromonomer polyether, polycarboxylate superplasticizer and preparation method thereof
The invention relates to high-molecular-weight macromonomer polyether, which is characterized by being prepared from the following raw material components: (a) hydroxy acrylate; (b) an epoxide; and (c) a catalyst; wherein the epoxide is ethylene oxide, propylene oxide or a mixture of the ethylene oxide and the propylene oxide, and the weight-average molecular weight of the high-molecular-weight macromonomer polyether is 2800-5000. The invention also relates to a preparation method of the high-molecular-weight macromonomer polyether. The invention also relates to a polycarboxylate superplasticizer prepared from the high-molecular-weight macromonomer polyether. The high-molecular-weight macromonomer polyether prepared by the method is low in impurity content, the reaction conversion rate isobviously improved, the yield of a target product is further improved, and the high-molecular-weight macromonomer polyether has the characteristics of environmental protection, safety and benefit win-win. Finally, the high-molecular-weight macromonomer polyether is low in viscosity, and the polycarboxylate superplasticizer prepared from the high-molecular-weight macromonomer polyether has good workability and fluidity.
本申请涉及一种高分子量大单体聚醚，其特征在于，所述高分子量大单体聚醚由以下原料组分制成：(a)丙烯酸羟基酯；(b)环氧化物；以及(c)催化剂；其中，所述环氧化物为环氧乙烷、环氧丙烷或者它们的混合物，所述高分子量大单体聚醚的重均分子量为2800‑5000。本申请还涉及如上所述的高分子量大单体聚醚的制备方法。本申请还涉及由如上所述的高分子量大单体聚醚制备的聚羧酸减水剂。在制备本文所述的高分子量大单体聚醚杂质含量低，反应转化率明显提高，目标产品的收率也进一步提高，具有环保、安全与效益共赢的特点。最后，本文所述的高分子量大单体聚醚粘度低，利用其制备的聚羧酸减水剂具有良好的和易性和流动性。
High-molecular-weight macromonomer polyether, polycarboxylate superplasticizer and preparation method thereof
The invention relates to high-molecular-weight macromonomer polyether, which is characterized by being prepared from the following raw material components: (a) hydroxy acrylate; (b) an epoxide; and (c) a catalyst; wherein the epoxide is ethylene oxide, propylene oxide or a mixture of the ethylene oxide and the propylene oxide, and the weight-average molecular weight of the high-molecular-weight macromonomer polyether is 2800-5000. The invention also relates to a preparation method of the high-molecular-weight macromonomer polyether. The invention also relates to a polycarboxylate superplasticizer prepared from the high-molecular-weight macromonomer polyether. The high-molecular-weight macromonomer polyether prepared by the method is low in impurity content, the reaction conversion rate isobviously improved, the yield of a target product is further improved, and the high-molecular-weight macromonomer polyether has the characteristics of environmental protection, safety and benefit win-win. Finally, the high-molecular-weight macromonomer polyether is low in viscosity, and the polycarboxylate superplasticizer prepared from the high-molecular-weight macromonomer polyether has good workability and fluidity.
本申请涉及一种高分子量大单体聚醚，其特征在于，所述高分子量大单体聚醚由以下原料组分制成：(a)丙烯酸羟基酯；(b)环氧化物；以及(c)催化剂；其中，所述环氧化物为环氧乙烷、环氧丙烷或者它们的混合物，所述高分子量大单体聚醚的重均分子量为2800‑5000。本申请还涉及如上所述的高分子量大单体聚醚的制备方法。本申请还涉及由如上所述的高分子量大单体聚醚制备的聚羧酸减水剂。在制备本文所述的高分子量大单体聚醚杂质含量低，反应转化率明显提高，目标产品的收率也进一步提高，具有环保、安全与效益共赢的特点。最后，本文所述的高分子量大单体聚醚粘度低，利用其制备的聚羧酸减水剂具有良好的和易性和流动性。
High-molecular-weight macromonomer polyether, polycarboxylate superplasticizer and preparation method thereof
高分子量大单体聚醚、聚羧酸减水剂及其制备方法
ZHAO XIN (Autor:in) / DU HUI (Autor:in) / WANG YALAN (Autor:in) / JI JINWEI (Autor:in) / LIANG WENTIAN (Autor:in) / ZHAO MENGTING (Autor:in) / WANG TAI (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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