Liquid regulator for ultra-dispersed, high-mud-resistance, high-foam-stability, low-shrinkage and enhanced autoclaved aerated concrete, and preparation method and application thereof

A liquid regulator for ultra-dispersed, high-mud-resistance, high-foam-stability, low-shrinkage and enhanced autoclaved aerated concrete, comprising the following ingredients in parts by weight:

• 75 parts to 85 parts of hyperdispersant;
• 5 parts to 10 parts of anti-mud agent;
• 1 part to 3 parts of shrinkage reducing ingredient;
• 10 parts to 20 parts of reinforcing ingredient;
• and 0.05 part to 0.1 part of foam stabilizing ingredient;
• wherein, preparation of the hyperdispersant comprises:
• mixing a monomer with water to obtain a solution A;
• mixing a reducing agent and a chain transfer agent with water to obtain a solution B;
• mixing polyether with water, heating the mixture, adding an initiator, stirring the mixture at normal temperature, adding the solution A and the solution B, heating and polymerizing the mixture, and adding a pH regulator to regulate a pH value to be 7 to 9, so as to obtain the hyperdispersant;
• the hyperdispersant comprises the following ingredients in parts by weight:
• 20 parts to 40 parts of monomer;
• 0.2 part to 2 parts of reducing agent;
• 0.8 part to 4 parts of chain transfer agent;
• 160 parts to 200 parts of polyether;
• 2 parts to 5 parts of initiator;
• 5 parts to 8 parts of pH regulator;
• and 200 parts to 300 parts of water;
• the monomer is one or more of acrylic acid, acrylamide and aspartic acid;
• the reducing agent is one or more of vitamin C and sodium hypophosphite;
• the chain transfer agent is one or more of mercaptoacetic acid and mercaptopropionic acid;
• the polyether is one or more of methyl polyethylene glycol ether, allyl polyethylene glycol ether, 2-methylpropyl-2-alkenyl polyethylene glycol ether, 3-methylbutyl-3-alkenyl polyethylene glycol ether and 4-hydroxybutyl vinyl ether;
• the initiator is one or more of hydrogen peroxide and ammonium persulfate;
• and the pH regulator is one or more of sodium hydroxide and potassium hydroxide;
• the shrinkage reducing ingredient is one or more of anhydrous aluminum sulfate and anhydrous magnesium sulfate;
• and
• the reinforcing ingredient is one or more of triethanolamine, triisopropanolamine, calcium formate, sodium carbonate and calcium nitrate.