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A platform for research: civil engineering, architecture and urbanism
Nano alpha alumina crystal nucleus type early strength agent and preparation method thereof
The invention belongs to the technical field of building material admixtures, and particularly relates to a nanometer alpha alumina crystal nucleus type early strength agent which is prepared from the following raw materials in parts by weight: 5-10 parts of flaky nanometer alpha alumina particles and 5-10 parts of long-strip-shaped nanometer alpha alumina particles. 1-5 parts of a polycarboxylic acid dispersant; 0.1 to 0.3 part of hydroxypropyl methyl cellulose and 70 to 90 parts of water. The invention also discloses a preparation method of the nano alpha alumina crystal nucleus type early strength agent, which comprises the following steps: S1, dissolving the hydroxypropyl methyl cellulose in hot water at 80 +/-2 DEG C, stirring and dissolving, and cooling for later use; s2, dissolving the prepared polycarboxylic acid dispersing agent in water, adding flaky nano alpha alumina particles and long-strip-shaped nano alpha alumina particles, and quickly shearing and dispersing by using a shearing dispersion machine to form a suspension; and S3, adding a hydroxypropyl methyl cellulose solution into the suspension, and uniformly stirring to obtain the nano alpha alumina crystal nucleus type early strength agent in a suspension form. The crystal nucleus type early strength agent provided by the invention can significantly improve the strength of the precast concrete component.
本发明属于建筑材料外加剂技术领域，具体涉及一种纳米阿尔法氧化铝晶核型早强剂，其是由以下重量份的原料制成：片状纳米阿尔法氧化铝粒子5‑10份，长条状纳米阿尔法氧化铝粒子5‑10份；聚羧酸分散剂1‑5份；羟丙基甲基纤维素0.1‑0.3份，水70‑90份。本发明还公开一种纳米阿尔法氧化铝晶核型早强剂的制备方法，包含以下步骤，S1：将羟丙基甲基纤维素溶于80±2℃热水中，搅拌溶解之后，冷却留存备用；S2：将制备的聚羧酸分散剂溶于水中，加入片状纳米阿尔法氧化铝粒子和长条状纳米阿尔法氧化铝粒子，用剪切分散机快速剪切分散形成悬浮液。S3：向悬浮液中加入羟丙基甲基纤维素溶液，搅拌均匀，得到悬浮液形式的纳米阿尔法氧化铝晶核型早强剂。发明的晶核型早强剂能够显著提升混凝土预制构件的强度。
Nano alpha alumina crystal nucleus type early strength agent and preparation method thereof
The invention belongs to the technical field of building material admixtures, and particularly relates to a nanometer alpha alumina crystal nucleus type early strength agent which is prepared from the following raw materials in parts by weight: 5-10 parts of flaky nanometer alpha alumina particles and 5-10 parts of long-strip-shaped nanometer alpha alumina particles. 1-5 parts of a polycarboxylic acid dispersant; 0.1 to 0.3 part of hydroxypropyl methyl cellulose and 70 to 90 parts of water. The invention also discloses a preparation method of the nano alpha alumina crystal nucleus type early strength agent, which comprises the following steps: S1, dissolving the hydroxypropyl methyl cellulose in hot water at 80 +/-2 DEG C, stirring and dissolving, and cooling for later use; s2, dissolving the prepared polycarboxylic acid dispersing agent in water, adding flaky nano alpha alumina particles and long-strip-shaped nano alpha alumina particles, and quickly shearing and dispersing by using a shearing dispersion machine to form a suspension; and S3, adding a hydroxypropyl methyl cellulose solution into the suspension, and uniformly stirring to obtain the nano alpha alumina crystal nucleus type early strength agent in a suspension form. The crystal nucleus type early strength agent provided by the invention can significantly improve the strength of the precast concrete component.
本发明属于建筑材料外加剂技术领域，具体涉及一种纳米阿尔法氧化铝晶核型早强剂，其是由以下重量份的原料制成：片状纳米阿尔法氧化铝粒子5‑10份，长条状纳米阿尔法氧化铝粒子5‑10份；聚羧酸分散剂1‑5份；羟丙基甲基纤维素0.1‑0.3份，水70‑90份。本发明还公开一种纳米阿尔法氧化铝晶核型早强剂的制备方法，包含以下步骤，S1：将羟丙基甲基纤维素溶于80±2℃热水中，搅拌溶解之后，冷却留存备用；S2：将制备的聚羧酸分散剂溶于水中，加入片状纳米阿尔法氧化铝粒子和长条状纳米阿尔法氧化铝粒子，用剪切分散机快速剪切分散形成悬浮液。S3：向悬浮液中加入羟丙基甲基纤维素溶液，搅拌均匀，得到悬浮液形式的纳米阿尔法氧化铝晶核型早强剂。发明的晶核型早强剂能够显著提升混凝土预制构件的强度。
Nano alpha alumina crystal nucleus type early strength agent and preparation method thereof
一种纳米阿尔法氧化铝晶核型早强剂及其制备方法
GUO XIANGJIN (author) / LU JIANG (author) / LI CAI (author) / YE PING (author) / WU XIAOBO (author) / ZHONG SHEN (author) / QIN LIYAN (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
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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