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A platform for research: civil engineering, architecture and urbanism
Calcium sulfate organic-inorganic hybrid modified super absorbent resin and preparation method thereof
The invention relates to calcium sulfate organic-inorganic hybrid modified super absorbent resin and a preparation method thereof. The internal curing agent is prepared by heating acrylic acid, sodium hydroxide, acrylamide, N '-N-methylene bisacrylamide, potassium persulfate, calcium sulfate and water in a constant-temperature water bath according to a certain ratio, and is used in UHPC as the internal curing agent, so that SAP can release Ca < 2 + > and SO4 < 2-> to the periphery of a hole in the water-releasing collapsing and tearing process, the generation amount of ettringite in the hole is increased, and the service life of the hole is prolonged. Therefore, the holes are filled to a certain extent, and the UHPC compressive strength is effectively improved.
本发明涉及一种硫酸钙有机‑无机杂化改性的高吸水树脂及其制备方法，由丙烯酸、氢氧化钠、丙烯酰胺、N’‑N亚甲基双丙烯酰胺、过硫酸钾、硫酸钙、水、按照一定配比恒温水浴加热后制备而成，将其用于UHPC中作为内养护剂，可使SAP在释水坍缩撕裂过程中将Ca2+、SO42‑释放至孔洞周围，增加孔洞内部钙矾石的生成量，从而在一定程度上填补孔洞，有效提升UHPC抗压强度。
Calcium sulfate organic-inorganic hybrid modified super absorbent resin and preparation method thereof
The invention relates to calcium sulfate organic-inorganic hybrid modified super absorbent resin and a preparation method thereof. The internal curing agent is prepared by heating acrylic acid, sodium hydroxide, acrylamide, N '-N-methylene bisacrylamide, potassium persulfate, calcium sulfate and water in a constant-temperature water bath according to a certain ratio, and is used in UHPC as the internal curing agent, so that SAP can release Ca < 2 + > and SO4 < 2-> to the periphery of a hole in the water-releasing collapsing and tearing process, the generation amount of ettringite in the hole is increased, and the service life of the hole is prolonged. Therefore, the holes are filled to a certain extent, and the UHPC compressive strength is effectively improved.
本发明涉及一种硫酸钙有机‑无机杂化改性的高吸水树脂及其制备方法，由丙烯酸、氢氧化钠、丙烯酰胺、N’‑N亚甲基双丙烯酰胺、过硫酸钾、硫酸钙、水、按照一定配比恒温水浴加热后制备而成，将其用于UHPC中作为内养护剂，可使SAP在释水坍缩撕裂过程中将Ca2+、SO42‑释放至孔洞周围，增加孔洞内部钙矾石的生成量，从而在一定程度上填补孔洞，有效提升UHPC抗压强度。
Calcium sulfate organic-inorganic hybrid modified super absorbent resin and preparation method thereof
硫酸钙有机-无机杂化改性的高吸水树脂及其制备方法
KONG DEYU (author) / WU HAOTIAN (author) / CAI JIALE (author) / OU TIANAN (author) / PAN RONGWEI (author) / LIU JINTAO (author) / YANG YANG (author) / HE KUI (author)
2024-08-16
Patent
Electronic Resource
Chinese
IPC:
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
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
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