Reasons for foaming of epoxy resin flooring

Bubbles on epoxy resin flooring often occur on the first floor or basement, and sometimes also on the second floor or above. Bubbles on epoxy resin flooring are usually discovered shortly after construction, and in the morning and afternoon when laying epoxy flooring. The blister develops continuously from small to large and stops when it reaches a certain level. The higher the temperature, the more likely water is to occur and develop at a faster rate. Bubble shape and size. Some bubbles have a diameter exceeding one million and a height of 20-50 millimeters.

The relationship between water bubble formation and building area is not obvious. In the same area, some are severe, some are mild, and some are intact. The same team operates with the same materials, and the construction of epoxy resin flooring results in some water bubbles and some intact ones, indicating that the water bubbles are caused by many factors.

The reason for foaming is a noteworthy issue. Open water bubbles contain water or inflammatory yellow liquid. The epoxy resin floor layer and substrate stick to the base, and the adhesive is pulled into the nest type, as shown in Figure 1-1; According to the explanation of "physics", the temperature and pressure of a sealed container filled with liquid, the evaporation of the liquid, and the saturation curve.

In a sealed container containing saturated water vapor pressure, as the temperature increases, the pressure increases to 20 ℃. In the drum pack for 0.01mpa; When the temperature is between 70-80. The third is a linear increase to 0.1mpa; In many regions, during the hot summer, ground radiation heats up to about 70 ℃. Extreme, at such high temperatures, the softening and bonding strength of epoxy resin adhesive materials is greatly reduced, gradually causing bulges in the tire drum and epoxy ground layer, and the adhesive is pulled to the honeycomb; The epoxy layer in the area without bubbles is not firmly in contact with the ground. Upon careful observation of the contact area, uncured parts will be found due to the moisture content of the uncured epoxy resin; And then in Chulai? There are mainly the following types of water sources: at a general level, such as the cement mortar leveling layer, the maximum moisture content is about 12%, and the maximum moisture content of the base layer is greater than that of the leveling layer. The dehydration of other components in epoxy resin is endless. The poor combination of epoxy resin and base construction leaves gaps and residual moisture or gas due to the chemical activity of epoxy resin itself, which cannot be completely cured or not fully cured. The moist gas seeping underground from the 4 roots.

Mainly due to primary dryness, there is no absolute dry grass. The moisture content of epoxy resin flooring cannot be determined to cause water bubbles. The base and water-based epoxy residue are wrapped in the epoxy resin and base, forming the size of bubbles. Due to the impermeability of the epoxy layer itself, water cannot be discharged in a timely manner, resulting in foamy seedlings. Therefore, the generated bubbles are on the airplane, in the grass and epoxy resin layer; Grassroots water is difficult to avoid, which is an important factor in the formation of water bubbles on epoxy resin flooring.