Synthesis of polycarboxylic ether superplasticizers based on
In the production of polycarboxylate superplasticizer, the amount of residual monomer is an important factor to influence product quality. In order to determine the content of different monomers in superplasticizer, the residual monomers in macromolecular materials can be determined by HPLC.
ODWHVXSHUSODVWLFL]HUVZLWK - Institute of Physics
HPEG-1 was 2402, the weight-average molecular weight of the synthesized polycarboxylate superplasticizer PCS-1 was 42547, and the average weight molecular weight of HPEG-4 was 6086, the weight-average molecular weight of the synthesized polycarboxylate superplasticizer PCS-4 was as high as 100541.
Synthesis and performance study of a highly dispersed HPEG
HPEG has long been widely used as an alternative to TPEG. In this study, a new high-performance HPEG-type polycarboxylate superplasticizer PCE-A was synthesized by using H 2 O 2 and sodium
TPEG&HPEG - Sure Chemical
TPEG/ HPEG is a main raw material of polycarboxylates high-performance superplasticizer, based on free radical copolymerization with acrylic acid to achieve well performed polycarboxylate superplasticizer production. Product index TPEG 2150-2700 ( Molecular weight ) 24+/-2 ( Hydroxyl value )
Polyether macromonomer HPEG/TPEG/APEG - LinkedIn
The concrete prepared with polyether large single system has excellent durability and frost resistance, and has been widely used in high-speed railway, subway engineering, expressway super...
- What is polycarboxylate superplasticizer (PCE)?
- 1. Introduction Polycarboxylate superplasticizer (PCE) was synthesized by unsaturated monomers of carboxylic acid, alkane macromonomers of long chains, and others. It was an excellent cement dispersant which would make great performance in concrete .
- Can hpeg-type polycarboxylate superplasticizer provide free radicals under aqueous polymerization conditions?
- In this study, a new high-performance HPEG-type polycarboxylate superplasticizer PCE-A was synthesized by using H2O2 and sodium hypophosphite/Vc redox initiation system to provide free radicals under aqueous polymerization conditions with HPEG and acrylic acid as the main raw materials.
- What is polycarboxylic ether superplasticizer?
- Generally, polycarboxylic ether superplasticizer (PCEs) have excellent properties of high water reduction and high slump retention capacity, and they are widely used in engineering , , , . In the synthesis of PCEs, the types of macromonomers are extremely important.
- What is a highly dispersed hpeg-type polycarboxylate superplasticizer?
- In this study, a highly dispersed HPEG-type polycarboxylate superplasticizer was synthesized using HPEG and acrylic acid as the copolymer monomer, hydrogen peroxide and Vc as the initiating system and sodium hypophosphite as the chain transfer agent.
- Which polyether macromonomers are used in polycarboxylate superplasticizer production process?
- At present, the polyether macromonomers used in the production process of polycarboxylate superplasticizer mainly include MPEG, APEG, TPEG and HPEG, among which TPEG and HPEG occupy most of the market .
- Can EPEG be used to prepare a slow-release polycarboxylate superplasticizer SP-YH?
- However, the current production capacity is relatively small, so there are not many related studies. Therefore, this paper uses EPEG as the main raw material to prepare a slow-release polycarboxylate superplasticizer SP-YH.
