Phenolics have excellent thermal stability. This is due to the presence of aromatic ring structures on the main chain of Phenolics molecules. These aromatic ring structures give Phenolics excellent heat resistance.
Generally speaking, phenolics can remain stable at temperatures below 200°C for long periods of time. This property gives Phenolics a wide range of potential applications in high temperature environments. However, it should be noted that although Phenolics can remain stable below 200°C, in practical applications, in order to avoid the generation of harmful gases such as formaldehyde, long-term use above 180°C is generally not recommended.
When temperatures exceed 300°C, phenolics begin to decompose. During this process, the Phenolics will gradually carbonize, forming a carbonized layer. This carbonized layer has excellent thermal insulation and oxidation resistance properties, which can effectively protect the internal materials of Phenolics from further erosion at high temperatures. Therefore, Phenolics have a wide range of applications in the field of cauterizing materials, such as rockets, missiles, aircraft, spacecraft, etc. that need to withstand extremely high temperatures.
In addition, the carbonation rate of Phenolics is also very high, which can reach more than 60%. This means that during the decomposition of Phenolics, a large amount of carbon is retained, forming a carbonized layer. This property not only enhances the heat resistance of Phenolics, but also provides the possibility of its application in other fields.
In addition to thermal stability, Phenolics also have other excellent properties, such as flame retardancy, mechanical strength, chemical resistance, etc. These properties make Phenolics widely used in construction, chemical industry, pipelines, transportation and other fields. For example, Phenolics can be used as fire-proof materials for interior decoration of buildings to improve the fire-resistance rating of buildings; at the same time, Phenolics can also be used as adhesives and coatings to improve the strength and durability of products.
In short, Phenolics have excellent thermal stability, can remain stable for a long time in high temperature environments, and have excellent flame retardancy, mechanical strength, chemical corrosion resistance and other properties. These characteristics make Phenolics have broad application prospects in many fields.
