HDI Manufacturer | HDI Factory | High Quality HDI Products – chemhdi.com Knowledge Introduction to polyurethane materials used in soundproof walls

Introduction to polyurethane materials used in soundproof walls

Polyurethane insulation material is A synthetic material with excellent properties, it has the advantages of high strength and low thermal conductivity. It is mainly used as thermal insulation material, followed by structural materials. It is not only widely used in the field of building materials, but also is gradually developing rapidly into new fields such as furniture, amusement facilities, aircraft and ship manufacturing.
1. Product composition and characteristics

high High-strength rigid polyurethane foam cold (warm) pipe support products are made from multifunctional organic isocyanates and mixed polyether polyols as the main raw materials. They interact in the presence of catalysts and a variety of special additives and are made through complex chemical reactions. A rigid polyurethane foam. In the production process of the product, due to the selection of specific polyurethane raw materials with larger functionality and the scientific selection of additive materials and material ratios, the compressive strength of the product is effectively improved, and the physical and chemical properties of the cold (warm) insulation pipe support products are The performance can fully meet the requirements of the application process. After testing by relevant authoritative departments, all indicators have reached or exceeded the technical level of similar foreign products. Its products have the following advantages: high density. The density can be adjusted between200~500 kg/cubic according to different applications. High compression strength. It can reach 4~20MPa and has a thermal conductivity of 0.052. It has low thermal conductivity, low moisture permeability and low water absorption. It can meet the needs of various cold (warm) products than any raw material so far. Moreover, it has excellent properties such as hydrolysis stability, anti-aging, acid and alkali resistance, corrosion resistance, and non-flammability that other products do not have.
2. Storage

Isocyanate (commonly known as black Materials) and combined polyethers (commonly known as white materials) must be stored in sealed containers to isolate air and prevent moisture absorption. Isocyanate and combined polyether barrels should not be exposed to the sun. They must be kept away from heat sources and placed in a cool and dry place. If the bucket is placed upright, there should be no accumulation of water on the lid. If the entire barrel of material cannot be used up at one time, the lid must be tightly closed immediately after each use to prevent water vapor and impurities from entering the barrel and affecting the quality. If more than two grades of polyether are used in combination, they should be stacked by grade and clearly marked. The combined polyether with ordinary flame retardants should not be stored for too long. It must be prepared and used on the same day, otherwise it will easily cause deterioration and affect the foaming quality.
Special specifications can be processed and customized as required!

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemhdi.com/archives/11430

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