Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-dry-shrinkage acrylate grouting material as well as preparation method and application thereof
The invention discloses an anti-dry-shrinkage acrylate grouting material as well as a preparation method and application thereof. The anti-dry-shrinkage acrylate grouting material is prepared from the following components in parts by mass: 15.6 to 22.6 parts of acrylic acid, 4.3 to 6.3 parts of magnesium oxide, 1.0 to 1.6 parts of dimethylaminoethyl methacrylate, 10.0 to 20.0 parts of a modifier a, 2.0 to 5.0 parts of a modifier b, 0.2 to 0.5 part of an initiator, 0 to 0.05 part of potassium ferricyanide and 53.0 to 59.3 parts of deionized water. According to the invention, dimethylaminoethyl methacrylate is used as a cross-linking agent and an accelerant, so that the acrylate gel has ultrahigh elasticity, the elongation at break can exceed 1200%, and meanwhile, the gel has better water absorption expansibility and better elasticity before being completely dried; the used modifier can greatly improve the dry shrinkage resistance of the gel under the condition that the viscosity of the slurry is not obviously improved, the water-retaining property of the gel is improved, the water loss rate and the volume shrinkage rate are reduced, and the dried and shrunk gel has excellent elasticity and can adapt to the dynamic change of cracks.
本发明公开抗干缩丙烯酸盐灌浆材料、制备方法及其应用，抗干缩丙烯酸盐灌浆材料按质量分数包括以下组分：丙烯酸15.6～22.6份，氧化镁4.3～6.3份，甲基丙烯酸二甲氨基乙酯1.0～1.6份，改性剂a 10.0～20.0份，改性剂b 2.0～5.0份，引发剂0.2～0.5份，铁氰化钾0～0.05份，去离子水53.0～59.3份。本发明使用甲基丙烯酸二甲氨基乙酯，即是交联剂又是促进剂，使丙烯酸盐凝胶体具有超高的弹性，断裂伸长率可超过1200％，同时凝胶体具有更好的吸水膨胀性，凝胶体未完全干燥前拥有更好的弹性；所使用的改性剂实现在不明显提高浆液黏度的情况下，大幅度提高凝胶体的抗干缩性能，凝胶体保水性增加，失水率和体积收缩率降低，干缩后的凝胶体具有优良的弹性，可以适应裂缝的动态变化。
Anti-dry-shrinkage acrylate grouting material as well as preparation method and application thereof
The invention discloses an anti-dry-shrinkage acrylate grouting material as well as a preparation method and application thereof. The anti-dry-shrinkage acrylate grouting material is prepared from the following components in parts by mass: 15.6 to 22.6 parts of acrylic acid, 4.3 to 6.3 parts of magnesium oxide, 1.0 to 1.6 parts of dimethylaminoethyl methacrylate, 10.0 to 20.0 parts of a modifier a, 2.0 to 5.0 parts of a modifier b, 0.2 to 0.5 part of an initiator, 0 to 0.05 part of potassium ferricyanide and 53.0 to 59.3 parts of deionized water. According to the invention, dimethylaminoethyl methacrylate is used as a cross-linking agent and an accelerant, so that the acrylate gel has ultrahigh elasticity, the elongation at break can exceed 1200%, and meanwhile, the gel has better water absorption expansibility and better elasticity before being completely dried; the used modifier can greatly improve the dry shrinkage resistance of the gel under the condition that the viscosity of the slurry is not obviously improved, the water-retaining property of the gel is improved, the water loss rate and the volume shrinkage rate are reduced, and the dried and shrunk gel has excellent elasticity and can adapt to the dynamic change of cracks.
本发明公开抗干缩丙烯酸盐灌浆材料、制备方法及其应用，抗干缩丙烯酸盐灌浆材料按质量分数包括以下组分：丙烯酸15.6～22.6份，氧化镁4.3～6.3份，甲基丙烯酸二甲氨基乙酯1.0～1.6份，改性剂a 10.0～20.0份，改性剂b 2.0～5.0份，引发剂0.2～0.5份，铁氰化钾0～0.05份，去离子水53.0～59.3份。本发明使用甲基丙烯酸二甲氨基乙酯，即是交联剂又是促进剂，使丙烯酸盐凝胶体具有超高的弹性，断裂伸长率可超过1200％，同时凝胶体具有更好的吸水膨胀性，凝胶体未完全干燥前拥有更好的弹性；所使用的改性剂实现在不明显提高浆液黏度的情况下，大幅度提高凝胶体的抗干缩性能，凝胶体保水性增加，失水率和体积收缩率降低，干缩后的凝胶体具有优良的弹性，可以适应裂缝的动态变化。
Anti-dry-shrinkage acrylate grouting material as well as preparation method and application thereof
一种抗干缩丙烯酸盐灌浆材料、制备方法及其应用
ZENG JUANJUAN (Autor:in) / JI YADONG (Autor:in) / LI HUIZHI (Autor:in) / ZHU KAIPENG (Autor:in) / WEI DAIDONG (Autor:in) / NING DIANYAN (Autor:in) / LI SHIQIANG (Autor:in) / ZHANG WENZHONG (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
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
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E02D
FOUNDATIONS
,
Gründungen
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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