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A platform for research: civil engineering, architecture and urbanism
Capsule slow-release flocculant, preparation method thereof and concrete
The invention relates to a capsule slow-release flocculant, a preparation method thereof and concrete. The capsule slow-release flocculant comprises a polyacrylamide terpolymer and a capsule coating, the polyacrylamide terpolymer comprises an acrylamide structural unit, an acrylic acid structural unit and an allyl-A-D-galactopyranoside structural unit, and the molar ratio of the three structural units is (50-70): (15-25): (15-25); the capsule coat is prepared from an acrylic monomer, styrene, an acrylate monomer and a cross-linking agent. In the preparation process, a whole set of appropriate test factor system is finally obtained by optimally designing process parameters in each step, so that the prepared capsule slow-release flocculant has excellent turbidity and expansion degree after being applied to underwater concrete. And the corresponding concrete also has excellent strength and salt tolerance.
本申请涉及一种胶囊缓释型絮凝剂及其制备方法和混凝土。胶囊缓释型絮凝剂包括聚丙烯酰胺为三元共聚物和胶囊外衣，聚丙烯酰胺为三元共聚物包括丙烯酰胺结构单元、丙烯酸结构单元和烯丙基‑Α‑D‑吡喃半乳糖苷结构单元，三种结构单元的摩尔比例为(50‑70):(15‑25):(15‑25)；胶囊外衣由丙烯酸类单体、苯乙烯、丙烯酸酯类单体和交联剂制得。在制备过程中，通过优化设计各个步骤中的工艺参数，最终得到了一整套合适的试验因子体系，确保所制备得到的胶囊缓释型絮凝剂应用到水下混凝土后，具有优异的浊度和扩展度。对应的混凝土也具有优异的强度和耐盐性。
Capsule slow-release flocculant, preparation method thereof and concrete
The invention relates to a capsule slow-release flocculant, a preparation method thereof and concrete. The capsule slow-release flocculant comprises a polyacrylamide terpolymer and a capsule coating, the polyacrylamide terpolymer comprises an acrylamide structural unit, an acrylic acid structural unit and an allyl-A-D-galactopyranoside structural unit, and the molar ratio of the three structural units is (50-70): (15-25): (15-25); the capsule coat is prepared from an acrylic monomer, styrene, an acrylate monomer and a cross-linking agent. In the preparation process, a whole set of appropriate test factor system is finally obtained by optimally designing process parameters in each step, so that the prepared capsule slow-release flocculant has excellent turbidity and expansion degree after being applied to underwater concrete. And the corresponding concrete also has excellent strength and salt tolerance.
本申请涉及一种胶囊缓释型絮凝剂及其制备方法和混凝土。胶囊缓释型絮凝剂包括聚丙烯酰胺为三元共聚物和胶囊外衣，聚丙烯酰胺为三元共聚物包括丙烯酰胺结构单元、丙烯酸结构单元和烯丙基‑Α‑D‑吡喃半乳糖苷结构单元，三种结构单元的摩尔比例为(50‑70):(15‑25):(15‑25)；胶囊外衣由丙烯酸类单体、苯乙烯、丙烯酸酯类单体和交联剂制得。在制备过程中，通过优化设计各个步骤中的工艺参数，最终得到了一整套合适的试验因子体系，确保所制备得到的胶囊缓释型絮凝剂应用到水下混凝土后，具有优异的浊度和扩展度。对应的混凝土也具有优异的强度和耐盐性。
Capsule slow-release flocculant, preparation method thereof and concrete
胶囊缓释型絮凝剂及其制备方法和混凝土
SUN GUOWEN (author) / LIU ZHIYONG (author) / WANG FENGJUAN (author) / XU WENXIANG (author) / YANG HAITAO (author) / WU LIPENG (author) / GAO LIXIONG (author) / WANG CAIHUI (author) / ZHENG HAORUI (author) / LI YIFAN (author)
2023-07-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
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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