◎ The main technical performance: ◆ The product is divided into: standard, early strength, retarding three models. ◆ The product content is 0.8-1.3%, water reducing rate of 15-40%. ◆ early strength increased by more than 70%, 28 days strength increased by more than 40%, especially suitable for high-volume fly ash concrete. ◆ can effectively reduce the concrete water-cement ratio, improve the durability of polycarboxylate liquor manufacturers, reduce shrinkage and creep degeneration. ◆ small slump loss, easy to long distance transport, to facilitate construction. ◆ green products, non-toxic, non-flammable, no corrosion of steel. Synthesis of the production process diagram: →→ esterification and polymerization reaction →→ →→ →→ liquor finished (1) esterification reaction (preparation of large single-family): Measurement of polyethylene glycol, which is melted in a water bath , added to the reaction vessel, and methyl methacrylate, and 1 part by small material (hydroquinone and phenothiazine ratio of 5: 1), heated to 90 ℃, was added concentrated sulfuric acid (as catalyst), heated to 120 to continue ℃, maintained 4.5h, after sufficient nitrogen 2 hours, (6㎡ / hour, every 30 minutes a bottle filling polycarboxylic acid mother liquor, a total of four bottles), the reaction was completed, to obtain an intermediate macromonomer of polyethylene glycol superplasticizer monomethacrylate and water. (By vacuum distillation → → dehydration, acidification is more complete). (2) Polymerization: Using ammonium persulfate initiator aqueous solution polymerization. Measurement esterification product i.e. polyethylene glycol mono methacrylate, acrylic acid, dodecyl mercaptan molecular weight modifier, with deionized water polycarboxylic acid liquor production, pumped into tank A standby titration, is A material. Measurement of ammonium persulfate, with deionized water, pumped into tank B alternate titration, B is expected. Adding deionized water into the reaction vessel, warmed to 85 ℃, while titration A, B material. A complete feed three hours titration, B feed 3.5 hours titration finished, incubated for 1.5 hours. (Temperature control: 90 ± 2 ℃). (3) and reaction (is concentrated sulfuric acid esterification catalyst and being used above), the reaction is a good polymer cooling to below 50 ℃, stirring polylactic acid liquor price of soda ash is added, until the PH value about 7, the reaction was complete, the mother liquor obtained polycarboxylate superplasticizer. Polylactic acid liquor liquor production _ _ Tancheng polycarboxylate high-strength high-strength building materials provided by the Building Materials Co., Linyi. Linyi high-strength building materials Limited (www.lygqjc.cn) strong, credible, concrete and Shandong Linyi products and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead high-strength construction materials into the brilliant and you work for a better future!