Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Crosslinking polycarboxylic slump retaining agent and preparation method thereof
The invention discloses a crosslinking polycarboxylic slump retaining agent and a preparation method thereof. Structure of the crosslinking polycarboxylic slump retaining agent is shown as the following formula, and the agent is formed by copolymerization of a quaternary system macromonomer, unsaturated acid, unsaturated ester and poly-propylene glycol dimethyl acrylic ester. A one-step synthesis method is adopted, and synthesis temperature is controlled to be 10-50 DEG C, so that synthesis temperature range is wide, product performance is nonsensitive to temperature, ester groups of crosslinking monomer poly-propylene glycol dimethyl acrylic ester are released slowly, slump retaining effect is good, and influence on cement hydration is small.
Crosslinking polycarboxylic slump retaining agent and preparation method thereof
The invention discloses a crosslinking polycarboxylic slump retaining agent and a preparation method thereof. Structure of the crosslinking polycarboxylic slump retaining agent is shown as the following formula, and the agent is formed by copolymerization of a quaternary system macromonomer, unsaturated acid, unsaturated ester and poly-propylene glycol dimethyl acrylic ester. A one-step synthesis method is adopted, and synthesis temperature is controlled to be 10-50 DEG C, so that synthesis temperature range is wide, product performance is nonsensitive to temperature, ester groups of crosslinking monomer poly-propylene glycol dimethyl acrylic ester are released slowly, slump retaining effect is good, and influence on cement hydration is small.
Crosslinking polycarboxylic slump retaining agent and preparation method thereof
DAI ZHUDUAN (Autor:in) / FANG YUNHUI (Autor:in) / JIANG ZHUOJUN (Autor:in) / ZHONG LI NA (Autor:in) / GUAN MENGQIN (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch
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