Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate superplasticizer and preparation method thereof
The invention relates to the field of water reducing agents, in particular to a preparation method of a polycarboxylic acid water reducing agent, which comprises the following steps: immersing modified montmorillonite into the water reducing agent for 10-20 minutes, and separating to obtain the polycarboxylic acid water reducing agent, wherein the modified montmorillonite is prepared by the following steps: S1, uniformly mixing 80-120 parts by weight of absolute ethyl alcohol, 10-20 parts by weight of montmorillonite, 2-3 parts by weight of an initiator, 15-20 parts by weight of an amide monomer and 20-30 parts by weight of an unsaturated ester monomer into a mixed solution; s2, carrying out ball-milling treatment on the mixed solution in the step S1 at 1800-2000rpm for 2-3h, separating out montmorillonite, and drying to obtain modified montmorillonite; in addition, the prepared water reducing agent has the effects of low sensitivity to soil and good water reducing effect, and can effectively reduce the slump of concrete and improve the strength of the concrete after being doped into the concrete.
本申请涉及减水剂的领域，一种聚羧酸减水剂的制备方法，包括以下步骤：将改性蒙脱石浸入减水剂中10‑20min后分离出，得到聚羧酸减水剂；其中，所述改性蒙脱石包括以下制备步骤：S1:将80‑120重量份的无水乙醇、10‑20重量份的蒙脱石、2‑3重量份的引发剂、15‑20重量份的酰胺类单体和20‑30重量份的不饱和酯类单体均匀混合成混合液；S2:将S1步骤中的混合液在1800～2000rpm下球磨处理2‑3h，分离出蒙脱石，烘干得到改性蒙脱石；另外，本申请的制备的减水剂具有对泥土低敏感、减水效果好的效果，掺入混凝土能够有效降低混凝土坍落度，提高混凝土强度。
Polycarboxylate superplasticizer and preparation method thereof
The invention relates to the field of water reducing agents, in particular to a preparation method of a polycarboxylic acid water reducing agent, which comprises the following steps: immersing modified montmorillonite into the water reducing agent for 10-20 minutes, and separating to obtain the polycarboxylic acid water reducing agent, wherein the modified montmorillonite is prepared by the following steps: S1, uniformly mixing 80-120 parts by weight of absolute ethyl alcohol, 10-20 parts by weight of montmorillonite, 2-3 parts by weight of an initiator, 15-20 parts by weight of an amide monomer and 20-30 parts by weight of an unsaturated ester monomer into a mixed solution; s2, carrying out ball-milling treatment on the mixed solution in the step S1 at 1800-2000rpm for 2-3h, separating out montmorillonite, and drying to obtain modified montmorillonite; in addition, the prepared water reducing agent has the effects of low sensitivity to soil and good water reducing effect, and can effectively reduce the slump of concrete and improve the strength of the concrete after being doped into the concrete.
本申请涉及减水剂的领域，一种聚羧酸减水剂的制备方法，包括以下步骤：将改性蒙脱石浸入减水剂中10‑20min后分离出，得到聚羧酸减水剂；其中，所述改性蒙脱石包括以下制备步骤：S1:将80‑120重量份的无水乙醇、10‑20重量份的蒙脱石、2‑3重量份的引发剂、15‑20重量份的酰胺类单体和20‑30重量份的不饱和酯类单体均匀混合成混合液；S2:将S1步骤中的混合液在1800～2000rpm下球磨处理2‑3h，分离出蒙脱石，烘干得到改性蒙脱石；另外，本申请的制备的减水剂具有对泥土低敏感、减水效果好的效果，掺入混凝土能够有效降低混凝土坍落度，提高混凝土强度。
Polycarboxylate superplasticizer and preparation method thereof
一种聚羧酸减水剂及其制备方法
WANG XIAOYING (Autor:in) / QIN HUAIXIA (Autor:in) / ZHANG SANFENG (Autor:in) / YANG WENJIE (Autor:in) / REN JIANBO (Autor:in) / KONG LINGQIANG (Autor:in) / TIAN JING (Autor:in) / BIAN SHUFANG (Autor:in) / WANG QIAN (Autor:in) / ZHANG YUTAO (Autor:in)
20.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
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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