Cement foaming agent

Abstract

The invention discloses a cement foaming agent which comprises the following raw materials in parts by weight: 1-1.9 parts of rosin, 0.5-1 part of bone glue, 0.2-0.5 part of sodium hydroxide, 0.2-0.5 part of lauryl sodium sulfate, 3-5 parts of glutinous rice starch and 90-95 parts of water. The rosin is first level rosin, the bone glue is high quality bone glue, and the cement foaming agent also comprises 0.5-1 part of a silicone resin polyether emulsion as a foam stabilizer. The cement foaming agent is high in foaming rate, good in cement compatibility and stable in foam, is light in weight, high in strength, small in dosage and low in cost, is good in fireproof and waterproof properties, free of radioactivity and wide in application, and has energy-saving and environmental-friendly effects; the raw materials are easily available, and the preparation process is simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of foaming agents, in particular to cement foaming agents. Background technique [0002] At present, when fly ash and cement are used as the main raw materials to produce frame structure non-load-bearing lightweight partition wall panels and blocks, foaming agents must be used for foaming. There are many types of foaming agents, currently mainly include: rosin soap foaming agent, metal aluminum powder foaming agent, vegetable protein foaming agent, animal protein foaming agent, resin soap foaming agent, hydrolyzed blood glue foaming agent, Aluminum sulfonate foaming agent, etc. All kinds of foaming agents have their own advantages and disadvantages. Rosin soap foaming agent is a kind of foaming agent used earlier. It is a kind of surfactant prepared by saponification reaction with rosin and sodium hydroxide as the main raw materials. Its main component is sodium salt of rosin resin. Appearance is light ye...

AI Technical Summary

Problems solved by technology

Its manufacturing process is simple and the material cost is low, but its foaming ability and foam strength are also poor, so it is not suitable for making 700kg / m2 3 The following foamed concrete products

Vegetable protein foaming agent is made of natural polymer materials through a series of complex chemical reactions. This foaming agent is a light yellow transparent liquid, soluble in water, not sensitive to hard water, non-toxic, tasteless, and has excellent The foaming ability is rich and dense, but the foaming performance of the final product is unstable due to the unstable quality of the raw materials. It is only suitable for use in a small number of occasions, so it has not been widely promoted.

At present, animal protein foaming agents are widely recognized at home and abroad, which use animal (cattle, sheep) keratin as the main raw material, add a certain amount of chemical raw materials such as sodium hydroxide, hydrochloric acid, and magnesium chloride, heat to dissolve, dilute, and filter , high temperature shrinkage, dark brown viscous liquid, qualified animal protein foaming agent has a large foaming volume, high foam strength, thick foam wall, good stability, long defoaming time, no communication between foam gaps , good independence, low cost and other advantages, but the main defects of animal protein foaming agent are: poor foaming ability and foam stability, the finished product of traditional products will obviously have clear water in the upper part and foaming agent in the lower part The condition of the finished product

Although the product performance has been improved to a certain extent, the manufacturing process is complicated, the manufacturing cost is high, and the raw materials alone will cost a lot of money, and the performance is not particularly stable, and there may still be phenomena such as weak foaming ability, poor stability, or delamination. The existing foaming agent has low foaming rate and poor foam stability, and the products produced are heavy in weight, low in strength and high in cost, so it is difficult to meet market demand