Research progress on polycarboxylate based superplasticizers
1. Introduction. Polycarboxylate ether/ester (PCE) superplasticizer is a new generation of superplasticizer following the development of poly (naphthalene sulfonate) (PNS), poly (melamine sulfonate) (PMS) and acetone formaldehyde sulfite (AFS) superplasticizers.
Progresses in Synthesis of Polycarboxylate Superplasticizer
It was shown in Fourier transform infrared spectroscopy (FITR) that the molecular structure of modified polycarboxylate superplasticizer (MPCE) contained sulfonic acid groups, carboxylic acid groups, polyethylene oxide vinyl groups, and other groups and had comb-shaped molecular structure.
Synthesis and Properties of a Polycarboxylate
Polycarboxylate superplasticizers (PCEs) are comb-shaped polymers with an anionic backbone and several nonionic pendant chains, which typically are comprised of polyethylene glycols. In this study, the synthesis of a new type of superplasticizer is presented, which does not exhibit the typical comb-shaped form of PCEs but is built up from a linear polyetheramine and a hyperbranched
HV6128 - Institute of Physics
polycarboxylate superplasticizer continues to grow. Polycarboxylate superplasticizer is a kind of surfactant containing carboxyl grafted copolymer in molecules, and its unique molecular structure makes it have many unique advantages, such as low dosage, high water reduction rate, significant early strength growth, satisfactory keeping slump, no
Polycarboxylate Superplasticizers | Supercizer PCE | Fritz-Pak
Polycarboxylate superplasticizers are a fairly recent development in the concrete admixture industry. This unique blend of water-reducing chemicals provides substantially more benefits than previous superplasticizers.
- What is a comb-like polycarboxylate superplasticizer (PCE)?
- In this study, a novel comb-like polycarboxylate superplasticizer (PCE) was synthesized using isobutenyl polyethylene glycol (IPEG) and hydroxyethyl acrylate (HEA) by atom transfer radical polymerization (ATRP) (defined as A-CPCE).
- What is a polycarboxylate superplasticizer?
- Polycarboxylate superplasticizers (PCEs) are comb-shaped polymers with an anionic backbone and several nonionic pendant chains, which typically are comprised of polyethylene glycols. In this study,...
- What materials are used in the synthesis of polycarboxylate superplasticizer?
- Acrylic acid, oxidant, and reducing agent are essential raw materials for the synthesis of the polycarboxylate superplasticizer. Adjusting their amounts can change the molecular weight and structure of the polycarboxylate superplasticizer.
- Does polycarboxylate superplasticizer alter dispersion and water-reducing effects?
- Polycarboxylate superplasticizer, synthesized using different methods, may alter dispersion and water-reducing effects. The synthesis of PCE involves creating a novel macromolecular monomer with a controllable molecular mass, adjustable lipophilic, and hydrophilic moieties, as outlined in this study.
- Can comb-like polycarboxylate superplasticizer be synthesized by ATRP method?
- Based on the obtained results, the following conclusions can be drawn: 1. A comb-like polycarboxylate superplasticizer with relatively uniform polymer species (A-CPCE) was successfully synthesized by ATRP method.
- How to synthesize a comb-like polycarboxylate superplasticizer with relatively uniform polymer species?
- 1. A comb-like polycarboxylate superplasticizer with relatively uniform polymer species (A-CPCE) was successfully synthesized by ATRP method. Various characterization methods such as 1 H NMR, SEC and SCD determined the acquisition and molecular information of the synthesized products. 2.
