In fact, we all know that the fire prevention measures of cable tray are very important. The following is the introduction of the method of selecting fire prevention materials for combined cable tray by the cable tray manufacturer in Jinan.
The composite bridge fireproof coating is developed on the basis of the decorative fireproof coating and in combination with its own requirements, so the research and selection of raw materials can refer to the decorative fireproof coating. As a special coating, the fire retardant coating for glass fiber reinforced plastic cable tray should not only have the decorative effect of ordinary coating and provide physical protection for cable substrate, but also have the special function of flame retardant and fire-resistant, which requires them to be able to form a certain temperature foam insulation layer in a fire.
Therefore, there are special requirements for its base. The base material is required to be compatible with the entire coating system. The coating has good mechanical, physical and chemical properties, and can form a good foam insulation layer when exposed to fire. In order to achieve a certain time of flame retardant, the foam layer needs to be kept open at a higher temperature.
In addition, the rubber materials of the combined bridge cable are highly elastic, and the cable needs to be regularly maintained and moved. This requires that the coating should have sufficient resistance to expansion and contraction changes. It also requires that the fire retardant coating has no corrosion performance, good adhesion to rubber cable materials, good room temperature curing, and good decorative coating. A key decision in the selection of these requirements is to solve the coating with good adhesion to the substrate and other problems.
The selection of resin matrix materials has been modified to adapt to various flame retardant additives. These two ideal fire and heat insulation can also adapt to the environmental conditions of wire and cable trench application. In the research of cable fire-retardant coating, not only the selection of fire-retardant coating resin has a good fire-retardant effect, but also from the application point of view, the fire-retardant coating is required to have water resistance, acid resistance, alkali resistance, mildew resistance and corrosion resistance, and the cable is required to have strong alkali for cable cohesion.
The base materials of the composite bridge fireproof coating are generally chlorinated rubber, perchloroethylene, amino resin, phenolic resin, acrylic resin, solvent alkyd resin and acrylic resin lotion, double-sided vinyl chloride lotion, white glue, acrylic lotion and other water-soluble resins. There are many resins that can be used to prepare fire retardant coatings for cables. In practice, mixtures of two or more resins are often used to learn from each other to achieve the required film performance.
This is the end of the introduction to the selection of fireproof materials for composite cable tray. Please pay attention to our website for more information http://www.yeeones.com Understand.