Why did you choose phenolic material for the refrigerated carriage board.

Why did you choose phenolic material for the refrigerated carriage board?

The refrigerated carriage body is generally constructed using the following materials:
1. Stainless steel: Stainless steel is one of the most common materials for refrigerated car bodies. It has excellent corrosion resistance and can effectively prevent food or other items from corroding under humid and cold conditions. Stainless steel is also easy to clean and maintain, making it widely used in the food transportation and refrigeration industry.
2. Aluminum Alloy: Aluminum alloy is also commonly used for the construction of refrigerated car bodies. It has a lower density and good strength, making the body relatively lightweight and helping to improve fuel efficiency. Aluminum alloy has good thermal conductivity, which can help evenly distribute the temperature inside the carriage.
3. Polyurethane: polyurethane foam is a common thermal insulation material, which is usually used for the thermal insulation layer of the refrigerated car body. It has excellent insulation performance, which can effectively reduce heat conduction and help maintain a low-temperature environment inside the carriage. Polyurethane foam also has low water absorption, which can prevent the generation of condensed water.
4. Phenolic: Phenolic is a new type of insulation material with good insulation performance, fire resistance and flame retardancy, high-temperature carbonization, non melting and non shrinkage, high density, and short installation cycle. The thermal conductivity is below 0.025, with good insulation performance. The thickened high-density material has high compression resistance and impact resistance, is durable, waterproof, moisture-proof, and anti-condensation.
The selection of these materials depends on the specific needs and applications of refrigerated carriages. Designers will consider factors such as maintaining a low-temperature environment, preventing temperature changes and corrosion, in order to select the most suitable material combination. The fire resistance of phenolic material is derived from genes. Because it is a hard foam, its structure is stable. In order to achieve the same level of fire resistance as phenolic material, polyurethane needs to add a lot of flame retardants, and the price will be relatively high.