Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete composite internal curing agent and preparation method thereof
The invention belongs to the technical field of building material curing, and discloses a preparation method of a concrete composite internal curing agent, which comprises the following steps: mixing alkali, a vinyl unsaturated monomer, an internal crosslinking agent and an initiator to obtain a mixed solution, and mixing the mixed solution with petroleum hydrocarbon dissolved with a dispersing agent to obtain a reversed-phase suspension system; mixing alkali, acrylic acid, an internal cross-linking agent and an initiator to obtain a swelling solution, and adding fine particle resin into the swelling solution for swelling; heating and polymerizing the reversed-phase suspension system, reacting for a period of time, adding the swelled fine-particle resin, and continuously reacting at the original temperature; dehydrating a final product of the polymerization reaction, adding a surface cross-linking agent for reaction, removing petroleum hydrocarbon, and drying to obtain the super absorbent resin. And mixing the household garbage incineration bottom ash with the super absorbent resin to obtain the concrete composite internal curing agent. The concrete composite internal curing agent disclosed by the invention has good water absorption and water release performance, the dispersing performance of the curing agent is effectively improved, and the concrete composite internal curing agent has good economic value.
本发明属于建筑材料养护的技术领域，公开了一种混凝土复合内养护剂的制备方法：将碱、乙烯基不饱和单体、内交联剂与引发剂混合得到混合溶液，与溶有分散剂的石油烃混合，得到反相悬浮体系；将碱、丙烯酸、内交联剂与引发剂混合，得到溶胀溶液，向溶胀溶液中加入细颗粒树脂进行溶胀；将反相悬浮体系升温聚合，反应一段时间后加入溶胀后的细颗粒树脂，在原温度下继续反应；对聚合反应的最终产物脱水后添加表面交联剂反应，脱除石油烃干燥，得到高吸水性树脂；将生活垃圾焚烧底灰与高吸水性树脂混合，得到混凝土复合内养护剂。本发明的混凝土复合内养护剂，具有良好的吸水和释水性能，有效提高养护剂的分散性能，具有良好的经济价值。
Concrete composite internal curing agent and preparation method thereof
The invention belongs to the technical field of building material curing, and discloses a preparation method of a concrete composite internal curing agent, which comprises the following steps: mixing alkali, a vinyl unsaturated monomer, an internal crosslinking agent and an initiator to obtain a mixed solution, and mixing the mixed solution with petroleum hydrocarbon dissolved with a dispersing agent to obtain a reversed-phase suspension system; mixing alkali, acrylic acid, an internal cross-linking agent and an initiator to obtain a swelling solution, and adding fine particle resin into the swelling solution for swelling; heating and polymerizing the reversed-phase suspension system, reacting for a period of time, adding the swelled fine-particle resin, and continuously reacting at the original temperature; dehydrating a final product of the polymerization reaction, adding a surface cross-linking agent for reaction, removing petroleum hydrocarbon, and drying to obtain the super absorbent resin. And mixing the household garbage incineration bottom ash with the super absorbent resin to obtain the concrete composite internal curing agent. The concrete composite internal curing agent disclosed by the invention has good water absorption and water release performance, the dispersing performance of the curing agent is effectively improved, and the concrete composite internal curing agent has good economic value.
本发明属于建筑材料养护的技术领域，公开了一种混凝土复合内养护剂的制备方法：将碱、乙烯基不饱和单体、内交联剂与引发剂混合得到混合溶液，与溶有分散剂的石油烃混合，得到反相悬浮体系；将碱、丙烯酸、内交联剂与引发剂混合，得到溶胀溶液，向溶胀溶液中加入细颗粒树脂进行溶胀；将反相悬浮体系升温聚合，反应一段时间后加入溶胀后的细颗粒树脂，在原温度下继续反应；对聚合反应的最终产物脱水后添加表面交联剂反应，脱除石油烃干燥，得到高吸水性树脂；将生活垃圾焚烧底灰与高吸水性树脂混合，得到混凝土复合内养护剂。本发明的混凝土复合内养护剂，具有良好的吸水和释水性能，有效提高养护剂的分散性能，具有良好的经济价值。
Concrete composite internal curing agent and preparation method thereof
一种混凝土复合内养护剂及其制备方法
SU JIANMING (Autor:in) / GUO BAOLIN (Autor:in) / ZHANG QINGTAO (Autor:in) / YAO WANG (Autor:in) / JIANG RUISHUANG (Autor:in) / XU FEIPING (Autor:in) / SHANG ZHIQIANG (Autor:in) / GUO YONGZHI (Autor:in) / WANG BAOMIN (Autor:in) / YAN JIFEI (Autor:in)
17.01.2023
Patent
Elektronische Ressource
Chinesisch
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