Raw Materials for PCE

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Water reducing agent polyether HPEG

 

Chemical Structure:CH=CH(CH) (OCHCH)n OH

Chemical name:Allyl polyoxyethylene ether

Product introduction

Index HPEG-2400 HPEG-3000 TPEG-2400 TPEG-3000
Product appearance (at 25℃) White or light yellow flake White or light yellow flake White or light yellow flake White or light yellow flake
Chemical formula

CH2=CH-Rx-CH2CH2O(CH2CH2O)m

(CH2CH3CHO)nH

CH2=CH(CH3)CH2O(CH2CH2O)m

(CH2CH3CHO)nH

CH2=CH(CH3)CH2CH2O

(CH2CH2O)m(CH2CH3CHO)

nH

CH2=CH(CH3)CH2CH2O

(CH2CH2O)m(CH2CH3CHO)

nH

Hydroxyl value

(mg KOH/g)

22.0-25.0 17.5-19.5 22.0-25.0 17.5-19.5
Double bond retention rate (% ≥) 93.0 92.0 92.0 90.0
average molecular mass 2400 3000 2400 3000

degree of unsaturation

(mol/kg)

0.35 7.4 0.36 7.3
PH (1% aqueous solution) 5.5-7.5 5.5-7.5 5.0-7.0 5.5-7.5
Application

This series of products are non-toxic, non-irritant, is a new generation of polycarboxylic acid super plasticizer important raw materials. This product through free radical initiated copolymerization with acrylic acid, as the end hydrophilic group, the formation of copolymer, improve hydrophilicity, improve the dispersion of polymer in water. The synthesized water reducing agent has good particle dispersity and retention ability, high water reducing rate, low cement consumption, good reinforcing effect, good durability, no corrosion of steel bar and environmental friendliness. It can be used in high performance and high strength (above C60) concrete for mixing and long-distance transportation on site.