Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polyether macromonomer synthesis method, polyether macromonomer and application
The invention discloses a polyether macromonomer synthesis method, a polyether macromonomer and application, and belongs to the technical field of chemical raw material processing. The synthesis method of the polyether macromonomer has the advantages of low byproduct content, narrow molecular weight distribution, high double bond retention rate, large relative molecular weight and low potassium and sodium ion content. The molecular weight distribution coefficient of the polyether macromonomer obtained by the synthesis method is less than 1.03, and the double bond retention rate is greater than 98.6%. The polyether macromonomer has large relative molecular weight, can enable the polycarboxylic acid water reducing agent to form large steric hindrance, increases the water reducing rate and slump retaining property, and greatly improves the performance of the water reducing agent; potassium and sodium ions reach below 10ppm; the compressive strength ratio of the synthesized polycarboxylate superplasticizer is better.
本发明公开了一种聚醚大单体合成方法、聚醚大单体及应用，属于化工原料加工技术领域。该聚醚大单体的合成方法具有副产品含量低，分子量分布窄，双键保留率高，相对分子量大，钾钠离子含量低的优点。经过该合成方法获得的聚醚大单体分子量分布系数小于1.03，双键保留率大于98.6％。该聚醚大单体具有相对分子量大，可使聚羧酸减水剂，形成大空间位阻，增加减水率和保坍性，大幅度提高减水剂性能；钾钠离子达到10ppm以下；合成的聚羧酸减水剂抗压强度比更优。
Polyether macromonomer synthesis method, polyether macromonomer and application
The invention discloses a polyether macromonomer synthesis method, a polyether macromonomer and application, and belongs to the technical field of chemical raw material processing. The synthesis method of the polyether macromonomer has the advantages of low byproduct content, narrow molecular weight distribution, high double bond retention rate, large relative molecular weight and low potassium and sodium ion content. The molecular weight distribution coefficient of the polyether macromonomer obtained by the synthesis method is less than 1.03, and the double bond retention rate is greater than 98.6%. The polyether macromonomer has large relative molecular weight, can enable the polycarboxylic acid water reducing agent to form large steric hindrance, increases the water reducing rate and slump retaining property, and greatly improves the performance of the water reducing agent; potassium and sodium ions reach below 10ppm; the compressive strength ratio of the synthesized polycarboxylate superplasticizer is better.
本发明公开了一种聚醚大单体合成方法、聚醚大单体及应用，属于化工原料加工技术领域。该聚醚大单体的合成方法具有副产品含量低，分子量分布窄，双键保留率高，相对分子量大，钾钠离子含量低的优点。经过该合成方法获得的聚醚大单体分子量分布系数小于1.03，双键保留率大于98.6％。该聚醚大单体具有相对分子量大，可使聚羧酸减水剂，形成大空间位阻，增加减水率和保坍性，大幅度提高减水剂性能；钾钠离子达到10ppm以下；合成的聚羧酸减水剂抗压强度比更优。
Polyether macromonomer synthesis method, polyether macromonomer and application
一种聚醚大单体合成方法、聚醚大单体及应用
PENG TAO (Autor:in) / RONG HONG (Autor:in) / XIANG HONGJUN (Autor:in)
09.08.2022
Patent
Elektronische Ressource
Chinesisch
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