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].
Progresses in Synthesis of Polycarboxylate Superplasticizer - Hindawi
The prerequisite to synthesize PCE was to prepare new macromonomers with controlled molecular mass, adjustable hydrophilic-lipophilic groups, long-chain alkyl groups, and large terminal hydroxyl groups as well. Structural modifications in the molecular scale of polycarboxylate superplasticizer (PCE) would lead to changes in properties of dispersion and water retention as well as enhancement in
Synthesis of polycarboxylate superplasticizers using an acrylic acid
Polycarboxylate superplasticizer is a kind of comb‐like polymer surfactant and also a polyelectrolyte. 7, 8 It consists of adsorption groups and long side chains. 9 Polycarboxylate superplasticizers adsorb on the dispersed substances by the anchoring groups based on electrostatic repulsion and steric hindrance. 10-13 Lots of research results indicated that the steric hindrance effect is the
Polycarboxylate Polyether Macromonomer-Polycarboxylate Superplasticizer
HPEG is a kind of main raw material (polycarboxylate ether monomer) for producing high performance water reducing type polycarboxylate superplasticizer , it is produced with methallyl alcohol and ethylene epoxide as main raw materials. Chemical formula. CH2=C(CH3)CH2O (CH2CH2O)nH, n=10~60.
Dispersing silica fume in cementitious materials by silane
Polycarboxylate superplasticizer (PCE) is a surfactant widely used in the dispersion of cement. PCE has the advantages on effective dispersion of OPC, which results in more compacted cement hydration products and much higher concrete strength with longer durability [12] , [13] , [14] .
- What is hpeg 2400 reacted with?
- 5.HPEG 2400 can be reacted with unsaturated acids such as acrylic acid and cis-butyl anhydride, and the polycarboxylic acid water-reducing agent produced is characterized by high-cost performance, large water reduction rate, good plasticity retention and excellent durability. High-cost performance.
- What is Speg 2400 / hpeg 2400?
- SPEG is an important raw material for water-reducing polycarboxylic acid water reducers. 600000 Metric Tons per Year SPEG 2400/HPEG 2400 Flake is non-poisoned and non-hazardous. Avoid direct sunlight. Keep away from fire or any kind of heat source. Stored separately with oxidants and strong acids and Alkalis in a cool and ventilated place.
- 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.
- What are the advantages of hpeg 2400?
- 1.HPEG 2400 has stable product quality and is suitable for synthesizing polycarboxylic acid-reducing agents with small relative molecular mass and good water-reducing effect, which is the mainstream product in the current market. 2.
- What is monomer hpeg?
- Monomer HPEG 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.
- Who makes polycarboxylic acid superplasticizer monomer?
- We are the largest manufacturer of polycarboxylic acid superplasticizer monomer and polycarboxylic acid superplasticizer mother liquor in China, a strong supplier of MBCC and Sika, and also have European Reach certification. SPEG is prepared from isobutylene alcohol as the starting agent, with a relative molecular weight of 2400.
