Dispersing performance of different kinds of polycarboxylate
This study investigates the dispersing effectiveness of purposely selected methacrylate ester (MPEG), isoprenol ether (IPEG) and methallyl ether (HPEG) based polycarboxylate (PCE) superplasticizers of different molecular structures in cements blended with 0–50 wt% of a calcined clay (CC) rich in meta illite–smectite.
HV6128 - Institute of Physics
concrete raw materials during the application process, especially in low temperature construction in winter, the phenomenon of lagging bleeding in concrete with polycarboxylate superplasticizer is very common, this puts higher requirements on the performance of polycarboxylate superplasticizer[5-6].
CAS 31497-33-3 | Polyethylene Glycol Monomethallyl Ether (HPEG)
Introduction. Polyethylene glycol monomethallyl ether is used as the main raw material in polycarboxylate cement superplasticizer, the synthesized polycarboxylate high-efficiency superplasticizer has a strong ability to maintain the dispersion of cement particles, so that the product has low dosage, high water reducing rate and good reinforcement effect , durability, non-corroding steel bars
Raw materials for superplasticizers
Raw materials for superplasticizers Superplasticizers are used extensively in larger projects where reinforcing steel requires high workability, for precast concrete and on site where the large water reduction capability provides very early strength concrete with improved durability.
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 )
- What is polycarboxylate superplasticizer monomer?
- Polycarboxylate superplasticizer monomer have good water solubility and can dissolve in water and various organic solvents. They are essential raw materials for the production of new-type slump-maintaining polycarboxylate superplasticizers.
- Can Apeg be used to make polycarboxylate superplasticizers?
- The preparation of polycarboxylate superplasticizers using APEG only requires solution polymerization under normal pressure with co-polymer monomers. However, APEG has poor polymerization properties, resulting in a high amount of monomer residue and instability in the performance of the produced superplasticizers.
- What is the growth potential of poly carboxylate ether (PCE)?
- However it is identified that there is an excellent growth potential for Poly Carboxylate Ether (PCE) also known as next generation water reducer which is next to Sulphonated Naphthalene Formaldehyde (SNF). The basic raw materials for Poly carboxylate production are Methoxy Poly Ethylene Glycol (MPEG / PEGM 2000) and Meth acrylic Acid.
- Is MPEG a polycarboxylate superplasticizer?
- MPEG was one of the early large monomers used in the production of polycarboxylate superplasticizers. Its synthesis requires two steps: esterification and polymerization, making the process relatively complex.
- What is hpeg/speg/c4 monomer?
- HPEG/SPEG/C4 Monomer is the main raw material for the production of polycarboxylic acid superplasticizer, which is prepared by the reaction of methyl allyl alcohol and ethylene oxide. In the production process of PCE, it is generally used to produce water-reducing type water reducer, and the effect of it is not as good as that of TPEG/VPEG/IPEG.
- Can polycarboxylate superplasticizer solve the problem of high viscosity?
- To solve the problem of high viscosity for fresh concrete especially high-grade concrete, a novel viscosity-reducing type of polycarboxylate superplasticizer (PCE) was synthesized based on innovative design of molecular structure, and also was characterized to confirm the designed molecular structure.
