Why do we use aluminum dihydrogen phosphate as binder when producing corundum bricks？

Unfired brick is also called chemical bonded brick. It refers to the refractory material which can be directly built without firing. Its production process is relatively simple. It is made of refractory materials of different materials. The bonding of powder and granular materials in products mainly depends on the chemical action of binders.

At a very early time, people used sodium silicate and other binders to fuse or sinter corundum as aggregates and powders, and then machine-pressed it with wet-rolled and mixed mud, and then dried it to obtain non-fired corundum products. However, the composition of sodium silicate in sodium silicate has a great influence on the high temperature properties of corundum refractories, such as load softening temperature, so the high-grade refractories of air-hardening binders. Material is more and more limited. Aluminum dihydrogen phosphate as the main binder has been popularized. Its high temperature performance is better than that of sodium silicate bonded products, and the price is lower.

What are the benefits of using aluminum dihydrogen phosphate as a binder?

1. Aluminum dihydrogen phosphate produced by yucai chemical Co., Ltd. is mixed with refractory aggregate and hardening agent at normal temperature, and then kept at a constant temperature of 90 - 110 ℃ for 4 - 24 hours to form high bonding strength. After being dried at 350 - 500 ℃, it has high flexural strength, compressive strength and hydration resistance, and is not soft even if soaked or boiled in water.

2. The aluminum dihydrogen phosphate liquid produced by Yucai Chemical Industry has strong binding force with solidification, high temperature resistance, vibration resistance, peeling resistance and high temperature airflow erosion resistance. And has good red line absorption capability and insulation.

3. Aluminum dihydrogen phosphate produced by Yucai Chemical Industry can be directly added without any material difficulty, and the production process is simple and convenient.

4. Aluminum dihydrogen phosphate produced by Yucai Chemical Industry can prolong the service life of the product and has the ability to resist corrosion and oxidation.

 Yucai Phosphate Chemical Plant specializes in producing: sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, disodium hydrogen phosphate, industrial phosphoric acid, trisodium phosphate, aluminium dihydrogen phosphate, solid aluminium dihydrogen phosphate, liquid aluminium dihydrogen phosphate, sodium dihydrogen phosphate and other phosphate products after more than 30 years of continuous pursuit and development, relying on skilled chemical technology and product development, equipment updating and many other phosphate products. Colleges and universities have established a good cooperative and sharing relationship, playing a brand (Yucai Phosphate) in the chemical industry!