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A platform for research: civil engineering, architecture and urbanism
Concrete modifier and preparation process thereof
The invention discloses a modifier for concrete and a preparation process of the modifier. The modifier comprises the following raw materials in parts by weight: 30-50 parts of a main agent, 10-15 parts of an auxiliary agent, 0.1-0.2 part of polyvinyl alcohol, 1-10 parts of fatty alcohol-polyoxyethylene ether and 60-80 parts of water. The preparation method comprises the following steps: adding the main agent into water, stirring at a constant speed of 40-60r/min for 5 minutes, then sequentially adding the auxiliary agent, polyvinyl alcohol and fatty alcohol-polyoxyethylene ether, and continuously stirring for 5 minutes to obtain the modifier for concrete; a long alkyl chain on the product A can participate in a polymerization reaction and can provide a hydrophobic group on the main agent, so that the main agent is subjected to hydrophobic association in a mortar system, the action can be changed along with the change of temperature, the main agent is endowed with certain temperature responsiveness, and the use requirements under different conditions can be met.
本发明公开一种混凝土用改性剂及其制备工艺，包括如下重量份原料：30‑50份主剂，10‑15份助剂，0.1‑0.2份聚乙烯醇，1‑10份脂肪醇聚氧乙烯醚，60‑80份水；将主剂加入水中，以40‑60r/min的转速匀速搅拌5min，之后依次加入助剂、聚乙烯醇和脂肪醇聚氧乙烯醚，继续搅拌5min，制得混凝土用改性剂；产物A上的长烷基链能够参与到聚合反应中，能够为主剂上提供疏水基团，进而使得该主剂在砂浆体系中发生疏水缔合，该作用能够随着温度的变化进行改变，进而赋予主剂一定的温度响应性，能够满足不同条件下的使用需求。
Concrete modifier and preparation process thereof
The invention discloses a modifier for concrete and a preparation process of the modifier. The modifier comprises the following raw materials in parts by weight: 30-50 parts of a main agent, 10-15 parts of an auxiliary agent, 0.1-0.2 part of polyvinyl alcohol, 1-10 parts of fatty alcohol-polyoxyethylene ether and 60-80 parts of water. The preparation method comprises the following steps: adding the main agent into water, stirring at a constant speed of 40-60r/min for 5 minutes, then sequentially adding the auxiliary agent, polyvinyl alcohol and fatty alcohol-polyoxyethylene ether, and continuously stirring for 5 minutes to obtain the modifier for concrete; a long alkyl chain on the product A can participate in a polymerization reaction and can provide a hydrophobic group on the main agent, so that the main agent is subjected to hydrophobic association in a mortar system, the action can be changed along with the change of temperature, the main agent is endowed with certain temperature responsiveness, and the use requirements under different conditions can be met.
本发明公开一种混凝土用改性剂及其制备工艺，包括如下重量份原料：30‑50份主剂，10‑15份助剂，0.1‑0.2份聚乙烯醇，1‑10份脂肪醇聚氧乙烯醚，60‑80份水；将主剂加入水中，以40‑60r/min的转速匀速搅拌5min，之后依次加入助剂、聚乙烯醇和脂肪醇聚氧乙烯醚，继续搅拌5min，制得混凝土用改性剂；产物A上的长烷基链能够参与到聚合反应中，能够为主剂上提供疏水基团，进而使得该主剂在砂浆体系中发生疏水缔合，该作用能够随着温度的变化进行改变，进而赋予主剂一定的温度响应性，能够满足不同条件下的使用需求。
Concrete modifier and preparation process thereof
一种混凝土用改性剂及其制备工艺
FENG XUEHUI (author) / YU JIAHUI (author)
2022-03-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
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
/
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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