Rock wool, aviation aluminum platinum and polyurethane foam have their own advantages and disadvantages. Among the three fillers, aviation aluminum platinum filler will be better.
1 rock wool
Rock wool is a kind of fiber material, which is bonded by adhesive after high temperature combustion. At present, many sound-absorbing materials on the market are made of this rock wool, which has the advantages of thermal insulation. Generally, rock wool is mainly used in engineering doors, but less used in household doors. The disadvantage is that the water absorption is relatively large and the process is complicated.
2, aviation aluminum platinum
The name aviation aluminum platinum sounds very tall, and it has the advantages of good environmental protection, long life, strong corrosion resistance, sound insulation, heat insulation, heat preservation and high material density. Disadvantages are high price and poor plasticity, and many plates cannot be processed.
3. Polyurethane foaming
The polyurethane foam is composed of polyol and isocyanate, and belongs to polymer compounds. It has the advantages of aging resistance, good thermal insulation, strong resilience, heat insulation, sound insulation and earthquake resistance. The disadvantage is that the flame retardancy is poor, and some smells will be emitted during construction.
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