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Polycarboxylic acid slump retaining agent and preparation method thereof
The invention relates to the field of polycarboxylic acid slump retaining agents, and particularly discloses a polycarboxylic acid slump retaining agent and a preparation method thereof. The structural formula of the polycarboxylic acid slump retaining agent comprises a structural unit as shown in a formula (i) and a structural unit as shown in a formula (ii), wherein R1 and R2 are independently selected from hydrogen and C1-C6 alkyl groups, A1 and A2 are independently selected from bivalent C1-C6 alkyl groups, m1 and m2 are independently selected from 0 and 1, B1 and B2 are independently selected from bivalent C4-C6 alkyl groups, n1 and n2 are independently selected from 0 and 1, 20 < = p1 < = 80, 20 < = p2 < = 80, 0 < = q1 < = 10, and 0 < = q2 < = 10; r3 is selected from hydrogen and C1-C6 alkyl, and R4 is a bivalent C1-C6 alkyl. The slump retaining time of the polycarboxylic acid slump retaining agent is prolonged, and the slump retaining property of the polycarboxylic acid slump retaining agent is improved.
本申请涉及聚羧酸保坍剂领域，具体公开了一种聚羧酸保坍剂及其制备方法。一种聚羧酸保坍剂的结构式中包括如式(i)所示结构单元和如式(ii)所示结构单元：R1和R2各自独立地选自氢、C1～C6烷基，A1和A2各自独立地选自二价的C1～C6烷基，m1和m2各自独立地选自0、1，B1和B2各自独立的选自二价的C4～C6烷基，n1和n2各自独立地选自0、1，20≤p1≤80，20≤p2≤80，0≤q1≤10，0≤q2≤10；R3选自氢、C1～C6烷基，R4为二价的C1～C6烷基。本申请延长了聚羧酸保坍剂的保坍时间，提高了聚羧酸保坍剂的保坍性。
Polycarboxylic acid slump retaining agent and preparation method thereof
The invention relates to the field of polycarboxylic acid slump retaining agents, and particularly discloses a polycarboxylic acid slump retaining agent and a preparation method thereof. The structural formula of the polycarboxylic acid slump retaining agent comprises a structural unit as shown in a formula (i) and a structural unit as shown in a formula (ii), wherein R1 and R2 are independently selected from hydrogen and C1-C6 alkyl groups, A1 and A2 are independently selected from bivalent C1-C6 alkyl groups, m1 and m2 are independently selected from 0 and 1, B1 and B2 are independently selected from bivalent C4-C6 alkyl groups, n1 and n2 are independently selected from 0 and 1, 20 < = p1 < = 80, 20 < = p2 < = 80, 0 < = q1 < = 10, and 0 < = q2 < = 10; r3 is selected from hydrogen and C1-C6 alkyl, and R4 is a bivalent C1-C6 alkyl. The slump retaining time of the polycarboxylic acid slump retaining agent is prolonged, and the slump retaining property of the polycarboxylic acid slump retaining agent is improved.
本申请涉及聚羧酸保坍剂领域，具体公开了一种聚羧酸保坍剂及其制备方法。一种聚羧酸保坍剂的结构式中包括如式(i)所示结构单元和如式(ii)所示结构单元：R1和R2各自独立地选自氢、C1～C6烷基，A1和A2各自独立地选自二价的C1～C6烷基，m1和m2各自独立地选自0、1，B1和B2各自独立的选自二价的C4～C6烷基，n1和n2各自独立地选自0、1，20≤p1≤80，20≤p2≤80，0≤q1≤10，0≤q2≤10；R3选自氢、C1～C6烷基，R4为二价的C1～C6烷基。本申请延长了聚羧酸保坍剂的保坍时间，提高了聚羧酸保坍剂的保坍性。
Polycarboxylic acid slump retaining agent and preparation method thereof
一种聚羧酸保坍剂及其制备方法
WANG JING (author) / KONG TAO (author) / PENG JING (author) / WANG LINLIN (author) / LIU JUNYUAN (author) / LI DEJUN (author) / YIN XIANGYONG (author) / ZHAO YUXIANG (author)
2022-03-01
Patent
Electronic Resource
Chinese
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