Four major development directions of the insulation materials industry
July 16 17:00:35, 2025
The Four Major Development Trends in the Insulation Material Industry
In the early stages, thermal insulation materials were primarily made from organic substances such as polystyrene boards. However, these materials had significant drawbacks, especially in terms of fire resistance. Over time, polystyrene boards have evolved to achieve fireproof ratings like B2 and B1, and more advanced, fire-resistant, and waterproof insulation materials have gradually emerged. This evolution shows that the industry is not only focusing on better thermal performance but also considering other critical factors like durability, safety, and environmental impact.
One of the key development directions today is improving moisture and water resistance. The water absorption rate of an insulating material is a crucial factor when choosing the right product. Water has a thermal conductivity 23.1 times higher than air. When insulation materials absorb moisture, their thermal performance drops significantly, and they can also accelerate metal corrosion, which is extremely harmful.
The pore structure of insulation materials can be classified into open, closed, or semi-closed types. Except for some organic foam plastics, most insulation materials are prone to water absorption regardless of their pore structure. Open pores allow water to penetrate through capillary action, leading to high overall water absorption rates.
Currently, most insulation materials in China are not water-repellent and have a high water absorption rate. This necessitates strict waterproofing requirements for the outer sheath, increasing construction costs. To address this, silicone-based water-repellent agents have become a highly effective solution. These agents work by forming a strong chemical bond with inorganic silicate materials, altering their surface properties to create a hydrophobic effect. They offer excellent stability, low cost, and ease of application, making them ideal for modern insulation systems.
As the demand for sustainable and efficient building materials grows, the insulation industry continues to evolve, integrating advanced technologies and eco-friendly solutions to meet the needs of modern construction.
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