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The three filling materials for security doors, rock wool, aviation aluminum platinum, and polyurethane foam, each have their own advantages and disadvantages. Here are the Among the three fillings, aviation aluminum platinum filling is better.
1. Rock wool
Rock wool is a type of fiber material. It is burned at high temperature and bonded with adhesives. Currently, many sound-absorbing materials on the market are It is made of this kind of rock wool, and the rock wool material has the advantages of heat preservation, heat insulation, etc. Generally, rock wool is mainly used in engineering doors and is less used in home doors. The disadvantage is that the water absorption rate is relatively large and the process is complicated.
2. Aviation aluminum platinum
The name of aviation aluminum platinum sounds very high-end. It has good environmental protection, long service life, strong corrosion resistance, sound insulation, heat insulation and heat preservation. , high material density and other advantages, but the disadvantage is that it is relatively expensive and has poor plasticity, and many plate shapes cannot be processed.
3. Polyurethane foam
This kind of polyurethane foam is composed of polyol and isocyanate. It is a polymer compound with aging resistance, good thermal insulation and resilience. It has the advantages of strength, heat insulation, sound insulation, and earthquake resistance. The disadvantage is that it has poor flame retardancy and will emit some odor during the construction process.
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