Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-workability water reducing agent, preparation method and device
The invention relates to the technical field of water reducing agents, and discloses a high-workability water reducing agent and a preparation method and device.The high-workability water reducing agent is prepared from, by molar mass, 150-200 parts of industrial naphthalene, 200-300 parts of concentrated sulfuric acid, 80-100 parts of thionyl chloride, 100-120 parts of gluconic acid, 120-150 parts of formaldehyde, 50-100 parts of liquid caustic soda and 5-10 parts of extractant, the concentrated sulfuric acid is a sulfuric acid aqueous solution with the molar mass fraction being 98%, the thionyl chloride is sodium chloride, and the extractant is sodium chloride. The liquid caustic soda is a sodium hydroxide aqueous solution with the molar mass fraction of 32%, and a grafting reaction is adopted to enable a molecular main chain of the water reducing agent to have a large number of active groups, so that the slump of the water reducing agent is reduced, the water reducing agent has high water reducing rate and compressive strength, the workability of the water reducing agent with concrete is higher, and the workability of the water reducing agent with concrete is better.
本发明涉及减水剂技术领域，且公开了一种高和易性减水剂、制备方法及装置，按照摩尔质量比，包括有150～200份的工业萘、200～300份的浓硫酸、80～100份的氯化亚砜、100～120份的葡萄糖酸、120～150份的甲醛、50～100份的液碱以及5～10份的萃取剂组成，浓硫酸为摩尔质量分数为98％的硫酸水溶液，液碱为摩尔质量分数为32％的氢氧化钠水溶液，其采用接枝反应使得减水剂的分子主链上具有大量的活性基团，因此其坍落度降低，并且具有较高的减水率以及抗压强度，其与混凝土的和易性更强，进而具有较好的和易性。
High-workability water reducing agent, preparation method and device
The invention relates to the technical field of water reducing agents, and discloses a high-workability water reducing agent and a preparation method and device.The high-workability water reducing agent is prepared from, by molar mass, 150-200 parts of industrial naphthalene, 200-300 parts of concentrated sulfuric acid, 80-100 parts of thionyl chloride, 100-120 parts of gluconic acid, 120-150 parts of formaldehyde, 50-100 parts of liquid caustic soda and 5-10 parts of extractant, the concentrated sulfuric acid is a sulfuric acid aqueous solution with the molar mass fraction being 98%, the thionyl chloride is sodium chloride, and the extractant is sodium chloride. The liquid caustic soda is a sodium hydroxide aqueous solution with the molar mass fraction of 32%, and a grafting reaction is adopted to enable a molecular main chain of the water reducing agent to have a large number of active groups, so that the slump of the water reducing agent is reduced, the water reducing agent has high water reducing rate and compressive strength, the workability of the water reducing agent with concrete is higher, and the workability of the water reducing agent with concrete is better.
本发明涉及减水剂技术领域，且公开了一种高和易性减水剂、制备方法及装置，按照摩尔质量比，包括有150～200份的工业萘、200～300份的浓硫酸、80～100份的氯化亚砜、100～120份的葡萄糖酸、120～150份的甲醛、50～100份的液碱以及5～10份的萃取剂组成，浓硫酸为摩尔质量分数为98％的硫酸水溶液，液碱为摩尔质量分数为32％的氢氧化钠水溶液，其采用接枝反应使得减水剂的分子主链上具有大量的活性基团，因此其坍落度降低，并且具有较高的减水率以及抗压强度，其与混凝土的和易性更强，进而具有较好的和易性。
High-workability water reducing agent, preparation method and device
一种高和易性减水剂、制备方法及装置
LIU ZHUTANG (Autor:in)
21.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
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