Thermo-Resistant Composite Insulator Long Rod

    composite insulator mandrel is a composite material made of synthetic resin as the matrix and glass fiber as the reinforcing material, which is called fiber-reinforced plastic, commonly known as glass fiber reinforced plastic in my country. The Composite insulator mandrel material is a typical unidirectional fiber reinforced plastic, in which the reinforcing material is usually an iodine-free or low-iodine glass fiber, such as E fiber; the matrix is usually an epoxy resin or a mixture of several epoxy resins. The production of mandrel is generally made by continuous pultrusion (or pulling) process after unidirectional glass fiber is impregnated with epoxy resin matrix. According to the needs of the process, it is necessary to add curing agent, accelerator and internal mold release agent to the epoxy resin system in proportion; at the same time, in order to improve the bonding performance between the fiber and the resin, it is necessary to add a coupling agent to the glass fiber for surface treatment ; Here, other functional additives or fillers are sometimes added to the epoxy resin system to achieve certain performance requirements, such as defoaming agents, diluents and colorants.