A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modified chitosan water reducing agent as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and discloses a modified chitosan water reducing agent as well as a preparation method and application thereof. The structure of the modified chitosan water reducing agent provided by the invention comprises a first structural unit as shown in a formula (1), in the formula (1), R1 is an alkyl group with 1 to 50 carbon atoms, an alkenyl group with 1 to 50 carbon atoms, an alkynyl group with 1 to 50 carbon atoms, an aryl group with 6 to 50 carbon atoms, an aralkyl group with 6 to 50 carbon atoms, an alkoxy group with 1 to 50 carbon atoms, a polyether group with 10 to 100 carbon atoms or an acyl group with 5 to 50 carbon atoms; r2 and R3 are independently hydrogen, a sulfonic acid group, a carboxyl group, a quaternary ammonium salt group, a C1-C5 alcoholic hydroxyl group or a C6-C10 phenolic hydroxyl group. The modified chitosan water reducing agent provided by the invention has a good water reducing effect, the compressive strength of concrete can be effectively improved by adding the modified chitosan water reducing agent, and the application prospect is wide. # imgabs0 #
本发明属于建筑材料的技术领域，公开了一种改性壳聚糖减水剂及其制备方法和应用。本发明提供的改性壳聚糖减水剂的结构中包括式(1)所示的第一结构单元；式(1)中，R1为C1～C50的烷基、C1～C50的烯基、C1～50的炔基、C6～C50的芳香基、C6～C50的芳烷基、C1～C50的烷氧基、C10～C100的聚醚基或C5～C50的酰基；R2和R3独立地为氢、磺酸基、羧基、季铵盐基团、C1～C5的醇羟基或C6～C10的酚羟基。本发明提供的改性壳聚糖减水剂具有良好的减水效果，且其加入可有效地提高混凝土的抗压强度，应用前景广泛。#imgabs0#
Modified chitosan water reducing agent as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and discloses a modified chitosan water reducing agent as well as a preparation method and application thereof. The structure of the modified chitosan water reducing agent provided by the invention comprises a first structural unit as shown in a formula (1), in the formula (1), R1 is an alkyl group with 1 to 50 carbon atoms, an alkenyl group with 1 to 50 carbon atoms, an alkynyl group with 1 to 50 carbon atoms, an aryl group with 6 to 50 carbon atoms, an aralkyl group with 6 to 50 carbon atoms, an alkoxy group with 1 to 50 carbon atoms, a polyether group with 10 to 100 carbon atoms or an acyl group with 5 to 50 carbon atoms; r2 and R3 are independently hydrogen, a sulfonic acid group, a carboxyl group, a quaternary ammonium salt group, a C1-C5 alcoholic hydroxyl group or a C6-C10 phenolic hydroxyl group. The modified chitosan water reducing agent provided by the invention has a good water reducing effect, the compressive strength of concrete can be effectively improved by adding the modified chitosan water reducing agent, and the application prospect is wide. # imgabs0 #
本发明属于建筑材料的技术领域，公开了一种改性壳聚糖减水剂及其制备方法和应用。本发明提供的改性壳聚糖减水剂的结构中包括式(1)所示的第一结构单元；式(1)中，R1为C1～C50的烷基、C1～C50的烯基、C1～50的炔基、C6～C50的芳香基、C6～C50的芳烷基、C1～C50的烷氧基、C10～C100的聚醚基或C5～C50的酰基；R2和R3独立地为氢、磺酸基、羧基、季铵盐基团、C1～C5的醇羟基或C6～C10的酚羟基。本发明提供的改性壳聚糖减水剂具有良好的减水效果，且其加入可有效地提高混凝土的抗压强度，应用前景广泛。#imgabs0#
Modified chitosan water reducing agent as well as preparation method and application thereof
一种改性壳聚糖减水剂及其制备方法和应用
WU CHUANDENG (author) / LI GELI (author) / LIN ZHIQUN (author) / KE YULIANG (author) / FANG YUNHUI (author) / GUO YUANQIANG (author) / WU WENXIAN (author) / LIN TIANXING (author) / XIE FEI (author) / ZHANG JIAYAN (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
C08B
POLYSACCHARIDES
,
Polysaccharide
/
C04B
Kalk
,
LIME
/
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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