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㎡ / when filling a bottle every 30 minutes, a total of four bottles), the reaction was complete, to give the intermediate water reducer macromonomer polyethylene glycol monomethacrylate acetate 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, 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 ℃ polycarboxylate liquor manufacturer, while titration A, B material. A complete feed three hours titration, B feed 3.5 hours titration End polycarboxylate liquor production, incubated for 1.5 hours. (Temperature control: 90 ± 2 ℃). (3) and reaction (is concentrated sulfuric acid catalyst in the esterification reaction and above being used), the reaction would be cool to below 50 ℃ good polymer polylactic acid liquor production equipment, soda ash is added with stirring, until the PH value of about 7, the reaction was complete, the mother liquor obtained polycarboxylate superplasticizer. In many concrete projects, and naphthalene-based traditional concrete and efficient because of the limitations of technical performance, increasingly unable to meet the engineering needs. Concern at home and abroad of a new generation superplasticizer, polycarboxylate superplasticizer, due to the truly cement dispersion mechanism based on the design of effective molecular structure with ultra-dispersed, can prevent the concrete slump loss without causing significant retarding play high plasticizing effect at low dosage, to maintain good liquidity, cement adapt to a wide degree of freedom of the molecule structure, synthesis and more room for large high performance of concrete reinforcing the effect is significant, can reduce concrete shrinkage, low content of harmful substances and other technical performance characteristics, gives concrete excellent workability, good strength development, excellent durability, polycarboxylate superplasticizer has a good comprehensive technical performance and environmental advantages, in line with the needs of modern concrete project. Thus, polycarboxylate superplasticizer is becoming the preferred preparation of high performance concrete admixtures. According to reports polycarboxylate liquor, Japan polycarboxylate admixture amount accounted for more than 80% of all high-performance additive products of the total, North America and Europe account for more than 50%. In China, superplasticizer has been successfully applied only in the Three Gorges Dam, Bridge, Tianwan Nuclear Power Plant, the Beijing-Shanghai high-speed rail and other large state water, bridges, nuclear power, railway projects and achieved remarkable results. [4] The polycarboxylic acid liquor prices, polycarboxylates liquor, 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!