Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Iron aluminate cement water reducing agent and preparation method thereof
The invention relates to the technical field of building materials, and discloses an aluminoferrite cement water reducing agent and a preparation method thereof.The prepared unsaturated zwitterionic cyclodextrin, maleic anhydride and acrylic acid are subjected to a polymerization reaction, and the aluminoferrite cement water reducing agent is obtained; cyclodextrin has a hollow cylindrical three-dimensional structure and brings a remarkable steric hindrance effect to the polymer; a sulfonic acid group on a main chain of the water reducing agent is anchored on positively charged cement particles to generate strong adsorption; quaternary ammonium salt cations can be adsorbed on the surfaces of cement particles with negative charges, so that the cement particles achieve a better dispersion effect, and the fluidity of cement paste is improved; the existence of a cyclodextrin branched chain and a polyethylene glycol long chain affects the hydration process of the cement, so that the interpenetration effect between water reducing agent molecules and clay layers can be effectively weakened, the preparation method for synthesizing the iron aluminate cement water reducing agent is enriched, and industrial production is easy to realize.
本发明涉及建筑材料技术领域，且公开了一种铁铝酸盐水泥减水剂及其制备方法，将制备的不饱和两性离子型环糊精与马来酸酐、丙烯酸进行聚合反应，得到铁铝酸盐水泥减水剂；环糊精具有中空筒状的立体结构，为聚合物带来显著的空间位阻效应；减水剂主链上的磺酸基团锚固在带正电的水泥颗粒上，产生强烈吸附；季铵盐阳离子可吸附在带负电荷的水泥颗粒表面上，使水泥颗粒达到更好的分散效果，提高了对水泥净浆的流动性；环糊精支链和聚乙二醇长链的存在，影响到水泥水化历程，可有效减弱减水剂分子与黏土层间的穿插作用，丰富了合成铁铝酸盐水泥减水剂的制备方法，易于实现工业化生产。
Iron aluminate cement water reducing agent and preparation method thereof
The invention relates to the technical field of building materials, and discloses an aluminoferrite cement water reducing agent and a preparation method thereof.The prepared unsaturated zwitterionic cyclodextrin, maleic anhydride and acrylic acid are subjected to a polymerization reaction, and the aluminoferrite cement water reducing agent is obtained; cyclodextrin has a hollow cylindrical three-dimensional structure and brings a remarkable steric hindrance effect to the polymer; a sulfonic acid group on a main chain of the water reducing agent is anchored on positively charged cement particles to generate strong adsorption; quaternary ammonium salt cations can be adsorbed on the surfaces of cement particles with negative charges, so that the cement particles achieve a better dispersion effect, and the fluidity of cement paste is improved; the existence of a cyclodextrin branched chain and a polyethylene glycol long chain affects the hydration process of the cement, so that the interpenetration effect between water reducing agent molecules and clay layers can be effectively weakened, the preparation method for synthesizing the iron aluminate cement water reducing agent is enriched, and industrial production is easy to realize.
本发明涉及建筑材料技术领域，且公开了一种铁铝酸盐水泥减水剂及其制备方法，将制备的不饱和两性离子型环糊精与马来酸酐、丙烯酸进行聚合反应，得到铁铝酸盐水泥减水剂；环糊精具有中空筒状的立体结构，为聚合物带来显著的空间位阻效应；减水剂主链上的磺酸基团锚固在带正电的水泥颗粒上，产生强烈吸附；季铵盐阳离子可吸附在带负电荷的水泥颗粒表面上，使水泥颗粒达到更好的分散效果，提高了对水泥净浆的流动性；环糊精支链和聚乙二醇长链的存在，影响到水泥水化历程，可有效减弱减水剂分子与黏土层间的穿插作用，丰富了合成铁铝酸盐水泥减水剂的制备方法，易于实现工业化生产。
Iron aluminate cement water reducing agent and preparation method thereof
一种铁铝酸盐水泥减水剂及其制备方法
LIU LI (Autor:in) / QI DONGYOU (Autor:in) / LI CHANGCHENG (Autor:in) / WANG JINGYU (Autor:in) / WANG ZHIYONG (Autor:in) / LI CHANGHONG (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
C04B
Kalk
,
LIME
/
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
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