The external wall thermal insulation rock wool composite board is a new type of external wall thermal insulation material which is made up of magnesite fireproof board as the surface layer and rock wool as the core layer. The external wall thermal insulation rock wool composite board is specially designed and produced for the external thermal insulation thin plastering system of the building. It is suitable for the external wall insulation or energy saving of new or existing buildings with dense structures such as concrete or brick walls. The transformation can also be used as a fire barrier, which significantly improves the fire protection function of the exterior wall of the building. The specific advantages are as follows:
1. It does not burn, does not release heat and toxic fumes, and can effectively block the flame spread when the fire occurs, and the fire performance is excellent.
2, good thermal insulation performance, can improve the thermal resistance of the building maintenance structure, reduce building heating and air conditioning energy consumption, energy saving and emission reduction.
3, high compression resistance, high tensile strength and good durability, to ensure the reliability and long-term stability of product performance.
4, no moisture absorption, anti-aging, long-term stability of performance. 5, light weight, can be cut and sawed, easy to process.
Mono Calcium Phosphate ,the chemical formula is Ca (H2PO4)2.H2O, molecular weight of the body is 252.06, after dryed the product is white or slightly yellow micro powder or granules, the relative density of 2.22 (16 °C). Slightly hygroscopic, soluble in hydrochloric acid, nitric acid, slightly soluble in cold water, almost insoluble in ethanol. At 30 °C, 100 ml of water soluble MCP 1.8g. The aqueous solution was acidic, heating the aqueous solution can get calcium hydrogen phosphate. Lose crystal water at 109 °C and decomposed into calcium metaphosphate at 203°C. Applications:Monocalcium Phosphate is used to supply mineral nutrition such as phosphorus (P) and calcium (Ca) for animal, which can be easily digested and absorbed. Extensively applied as additives of Phosphorous and Calcium in aquatic animals feed.Higher water solubility of MCP is required in aquatic animals feed.
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