Aerogel is a material with ultra-low density and high specific surface area, and it has attracted extensive attention due to its excellent thermal insulation performance and lightweight characteristics. Among the applications of aerogel, aerogel felt and aerogel board are two common forms. Although they both originate from aerogel materials, there are some significant differences in structure, performance, and application. 
1. Form; shape; morphology 
In terms of morphology, aerogel felt presents a soft and rollable state, similar to traditional felt or fiber felt. This form gives aerogel felt greater flexibility in situations where filling, wrapping or covering is required. 
In contrast, aerogel boards are rigid and flat plates with a more stable form, making them suitable for applications that require structural support or flat laying. 
2. Preparation Process 
In terms of the preparation process, there are also differences between aerogel blankets and aerogel boards. Aerogel blankets are usually made by combining aerogel materials with inorganic fibers and undergoing special processing. This preparation process enables aerogel blankets to maintain their lightweight and thermal insulation properties while also having a certain degree of flexibility and plasticity. 
Aerogel boards are produced by combining silica aerogel with special fibers to create rigid nano-porous insulation boards. They feature an extremely low thermal conductivity and high-temperature resistance, making them the most outstanding product among rigid insulation materials. 
3. Application Fields 
In terms of application fields, aerogel blankets and aerogel boards each have their own advantages. Due to its soft and flexible nature, aerogel blankets are more suitable for applications that require filling, wrapping or covering, such as building insulation, pipeline insulation, and cold chain logistics. On the other hand, aerogel boards, with their hard and flat characteristics, are more appropriate for scenarios that need structural support or flat laying, such as aerospace, automotive manufacturing, and building energy conservation. 
In conclusion, there are significant differences between aerogel blankets and aerogel boards in terms of morphology, preparation process and application fields.