1. Basic concept of specific heat capacity and its impact on materials
Specific heat capacity refers to the amount of heat absorbed or released by a certain substance per unit mass when the unit temperature is increased or decreased. For thermal insulation materials, specific heat capacity is a key indicator to measure its ability to store and release heat. Ordinary thermal insulation materials, such as common cotton and polyester fibers, have relatively fixed specific heat capacities and limited values.
The specific heat capacity of cotton is about 1.34kJ/(kg·℃), and the specific heat capacity of polyester fibers is about 1.1-1.4kJ/(kg·℃). These materials have relatively stable ability to absorb or release heat when the temperature changes, but the amount of heat absorbed and stored is relatively limited. They mainly achieve the warmth effect by preventing the conduction and convection of heat, and have weak ability to regulate temperature.
2. Specific heat capacity characteristics of Energy Storage Thermostatic Cotton
Energy Storage Thermostatic Cotton is different. It is often a specially designed and processed composite material. In addition to having the same insulation mechanism as ordinary thermal insulation materials, its specific heat capacity characteristics are more complex and unique. Some Energy Storage Thermostatic Cottons are added with substances with high specific heat capacity or improved by special microstructures.
The specific heat capacity of some Energy Storage Thermostatic Cottons can reach 2-5kJ/(kg·℃) or even higher. This means that under the same mass and temperature change, Energy Storage Thermostatic Cotton can absorb or release more heat than ordinary thermal insulation materials. For example, when the ambient temperature rises, Energy Storage Thermostatic Cotton can absorb a large amount of heat, thereby slowing down the temperature rise and maintaining a relatively low temperature; when the ambient temperature drops, it can release the stored heat, maintain a relatively high temperature, and achieve a constant temperature effect.
3. The impact of specific heat capacity differences on performance
This difference in specific heat capacity directly leads to the huge difference in performance between Energy Storage Thermostatic Cotton and ordinary thermal insulation materials. The thermal insulation effect of ordinary thermal insulation materials depends largely on the thickness and density of the material, and keeps warm by reducing the heat transfer path. Once the external temperature changes significantly, the internal temperature will also change rapidly.
However, Energy Storage Thermostatic Cotton has a better temperature buffering ability when the temperature fluctuates due to its higher specific heat capacity. It can maintain a relatively stable temperature environment for a certain period of time without frequently relying on external heat supplementation or heat dissipation regulation. This makes Energy Storage Thermostatic Cotton have unparalleled advantages over ordinary thermal insulation materials in some application scenarios with high requirements for temperature stability, such as outdoor thermal clothing, precision instrument insulation, etc., and can provide a more comfortable and stable temperature environment for users or protected items.
