EPS Particles, or expandable polystyrene particles, exhibit remarkable characteristics in terms of water absorption. The following is a detailed analysis of the water absorption of EPS Particles:
1. Basic properties of EPS Particles
EPS Particles are lightweight foam plastic particles made from polystyrene resin through a foaming process. This material has the characteristics of light weight, high strength, good thermal insulation performance, moisture resistance, electrical insulation performance, etc., making it widely used in construction, packaging, insulation materials and other fields.
2. Water absorption of EPS Particles
EPS Particles have relatively little water absorption, mainly due to their unique structure. EPS Particles contain a large number of tiny closed bubbles, which can effectively prevent water molecules from entering. Therefore, EPS Particles can still maintain good performance in humid environments and are not susceptible to moisture.
Specifically, the water absorption rate of EPS Particles varies according to different usage environments and conditions. When not soaked in water, the water absorption rate of EPS usually remains below 1%, showing low water absorption. Even in an environment near the water table, the water absorption rate of EPS Particles is only less than 4%. When immersed in water for a long time, the water absorption rate of EPS may increase to about 10%, but compared to other materials, this value is still low.
3. Factors affecting water absorption of EPS Particles
The water absorption of EPS Particles is affected by many factors, including particle density, pore structure, ambient temperature and humidity, etc. Generally speaking, less dense EPS Particles have higher porosity and larger specific surface area, which may lead to higher water absorption. In addition, changes in ambient temperature and humidity will also affect the water absorption of EPS Particles. In high temperature and high humidity environments, the water absorption rate of EPS Particles may increase.
4. Summary
In summary, EPS Particles exhibit low water absorption characteristics. Its unique structure makes it difficult for moisture to enter the inside of the particles, thus maintaining good performance. In actual applications, the appropriate EPS Particles type and specifications can be selected according to the specific use environment and conditions to ensure the stability and reliability of its performance.
