A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention provides a viscosity reduction type polycarboxylic acid water reducing agent and a preparation method thereof, the viscosity reduction type polycarboxylic acid water reducing agent comprises a unit derived from an unsaturated polyether monomer of a formula I structure and a unit derived from a small molecule monomer containing an unsaturated bond, and the unsaturated polyether monomer has a structure as shown in a formula (I): R1O (R2) m (R3) nR4 (I). According to the viscosity reduction type polycarboxylate superplasticizer provided by the invention, a unit derived from an unsaturated polyether monomer containing a relatively long C chain is introduced, so that the polycarboxylate superplasticizer contains a relatively long side chain structure, the steric hindrance of the polycarboxylate superplasticizer is increased, the space stabilization effect of the polycarboxylate superplasticizer is more obvious, and the polycarboxylate superplasticizer has an obvious viscosity reduction effect; the steric hindrance effect can be better exerted when the composite material acts with sand and gravel materials such as cement, and the composite material is low in cost, low in energy consumption, easy to prepare, free of pollution to the environment, easy to degrade and huge in future market prospect.
本申请提供一种降粘型聚羧酸减水剂及其制备方法，该降粘型聚羧酸减水剂包含源自式I结构的不饱和聚醚单体的单元和源自含不饱和键的小分子单体的单元，所述不饱和聚醚单体具有如式(I)所示结构：R1O(R2)m(R3)nR4(Ⅰ)。本发明提供的降粘型聚羧酸减水剂引入了源自含有较长C链的不饱和聚醚单体的单元，使得聚羧酸减水剂含有较长的侧链结构，增大了其空间位阻，使减水剂的空间稳定效应更为显著，具有明显的降粘效果，与水泥等砂石料作用时能更好的发挥其空间位阻效应，且成本低廉、能耗低、易于制备、对环境无污染、易于降解，未来市场前景巨大。
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention provides a viscosity reduction type polycarboxylic acid water reducing agent and a preparation method thereof, the viscosity reduction type polycarboxylic acid water reducing agent comprises a unit derived from an unsaturated polyether monomer of a formula I structure and a unit derived from a small molecule monomer containing an unsaturated bond, and the unsaturated polyether monomer has a structure as shown in a formula (I): R1O (R2) m (R3) nR4 (I). According to the viscosity reduction type polycarboxylate superplasticizer provided by the invention, a unit derived from an unsaturated polyether monomer containing a relatively long C chain is introduced, so that the polycarboxylate superplasticizer contains a relatively long side chain structure, the steric hindrance of the polycarboxylate superplasticizer is increased, the space stabilization effect of the polycarboxylate superplasticizer is more obvious, and the polycarboxylate superplasticizer has an obvious viscosity reduction effect; the steric hindrance effect can be better exerted when the composite material acts with sand and gravel materials such as cement, and the composite material is low in cost, low in energy consumption, easy to prepare, free of pollution to the environment, easy to degrade and huge in future market prospect.
本申请提供一种降粘型聚羧酸减水剂及其制备方法，该降粘型聚羧酸减水剂包含源自式I结构的不饱和聚醚单体的单元和源自含不饱和键的小分子单体的单元，所述不饱和聚醚单体具有如式(I)所示结构：R1O(R2)m(R3)nR4(Ⅰ)。本发明提供的降粘型聚羧酸减水剂引入了源自含有较长C链的不饱和聚醚单体的单元，使得聚羧酸减水剂含有较长的侧链结构，增大了其空间位阻，使减水剂的空间稳定效应更为显著，具有明显的降粘效果，与水泥等砂石料作用时能更好的发挥其空间位阻效应，且成本低廉、能耗低、易于制备、对环境无污染、易于降解，未来市场前景巨大。
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
一种降黏型聚羧酸减水剂及制备方法
ZHU JIANMIN (author) / LIU ZHAOBIN (author) / DONG ZHENPENG (author) / JIANG YUNPENG (author)
2022-09-06
Patent
Electronic Resource
Chinese
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2021
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2021
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2023
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2020
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2023