The role of GPO3 sheet is in the electrical equipment to the potential of different charged part of the isolated. Therefore, the insulation material should first have a high insulation resistance and compressive strength, and to avoid leakage, breakdown and other accidents. Second, the heat resistance is better, to avoid long-term overheating and aging deterioration; In addition, there should be good thermal conductivity, resistance to lightning and high mechanical strength and ease of processing and so on. According to the above requirements, commonly used insulating material performance indicators are dielectric strength, tensile strength, specific gravity, expansion coefficient.
Electrician commonly used insulating materials according to their different chemical properties, can be divided into inorganic insulation materials, organic insulation materials and mixed fire resistant cables tape. Commonly used inorganic insulation materials are: mica, asbestos, marble, porcelain, glass, sulfur, etc., mainly used for motors, electrical insulation winding, switch the bottom plate and insulators. Organic insulation materials are: shellac, resin, rubber, cotton yarn, paper, linen, rayon, etc., mostly used to manufacture insulating paint, winding wire wound insulation and so on. Mixed insulation materials for the above two kinds of materials through the processing of various molding insulation materials, used as electrical appliances of the base, shell and so on.

Development Trend of Insulating Materials

The development and development of mica cable tape is one of the key factors affecting the development of electrical technology. From the future trend, the requirements of the development of high pressure, heat insulation, impact resistance, environmental insulation, composite insulation, corrosion resistance, water, oil, cryogenic, radiation and flame retardant materials, research and development of environmentally friendly energy-saving materials. The focus is on the development of high-voltage generators for high-pressure epoxy mica insulation systems, such as FR5, phlogopite, etc .; small and medium-sized motor F, H-class insulation series, such as unsaturated polyester resin glass felt board; High-performance insulating oil; synthetic paper composite insulation; flame-retardant rubber and plastic materials and surface protection materials, and to actively promote the traditional use of sulfur hexafluoride gaseous medium; Replacement of insulation materials for electrical equipment.
Molding and extrusion process products to enhance the performance and standards will certainly greatly reduce the production costs of laminates, will gradually eliminate low-end electrical compressed laminated wood, will produce a new resin products, so that insulation materials Grade application market identified in the F-class H-class C-level market.

Insulation material performance

Different electrical equipment requirements for the performance of insulating materials are focused. High-voltage electrical equipment such as high-voltage motors, high-voltage cables and other insulation material tube require high breakdown strength and low dielectric loss. Low-voltage electrical appliances, such as mechanical strength, elongation at break, heat-resistant grade as the main requirements.
The macroscopic properties of insulating materials such as electrical properties, thermal properties, mechanical properties, chemical resistance, weather resistance, corrosion resistance and other properties are closely related to its chemical composition and molecular structure. Inorganic solid insulation material is mainly composed of silicon, boron and a variety of metal oxides, mainly to the ionic structure, the main features of high heat resistance, the working temperature is generally greater than 180 ℃, good stability, resistance to atmospheric aging, Chemical properties and long-term under the action of the electric field aging performance; but high brittleness, low impact strength, high pressure and low tensile strength; poor process. Organic materials are generally polymers with an average molecular weight between 104 and 106, and their heat resistance is generally lower than that of inorganic materials. Contains aromatic rings, heterocycles and silicon, titanium, fluorine and other elements of the material heat resistance is higher than the general line of chain polymer materials.
An important factor affecting the dielectric properties of mica insulation tape is the strength of the polar and the content of polar components. The dielectric constant and dielectric loss of the polar material are higher than those of the non-polar material, and the impurity ions are easily adsorbed to increase the conductivity and reduce the dielectric properties. Therefore, in the insulation material manufacturing process should pay attention to clean, to prevent pollution. Capacitor dielectrics require high dielectric constants to increase their specificity.

Insulation material - 3240 epoxy board

Epoxy resin is also known as epoxy glass fiber reinforced plastic, epoxy mica tape for cable, model 3240, epoxy resin is a molecule refers to the molecule contains two or more epoxy groups of organic polymer compounds, in addition to individual , Their relative molecular mass is not high. The molecular structure of the epoxy resin is characterized by the presence of a reactive epoxy group in the molecular chain, and the epoxy group may be at the terminal, intermediate or cyclic structure of the molecular chain. As the molecular structure contains lively epoxy groups, so that they can be associated with a variety of types of curing agent cross-linking reaction to form insoluble, non-melting with three-way network structure of the polymer.

Promote the development of insulating materials industry is imperative

polyimide glass fiber as a basic material, a wide range of applications, such as the lifeline of the national economy as the power industry, its development and high-performance insulation materials are closely related. Insulation material is to ensure that electrical equipment, especially power equipment can be reliable, lasting and safe operation of the key material, its level will directly affect the power industry development level and quality of operation. With the economic development, China's transmission line of the highest voltage level will be increased from 500kV to 750kV or 1000kV, and the transmission line voltage level for each step up, power equipment paper banding tape system must be improved accordingly. There is no high-performance insulation materials to ensure that from the power generation, power transmission to all the electricity system is likely to occur local power grid instability, serious will make the entire power grid paralyzed. Therefore, in the protection of power generation, power transmission, electrical equipment operation reliability and stability, the advanced nature of insulation, stability has a very important significance. For the defense, the military equipment in the power, control, communications, radar and other systems need insulation materials, to develop new military equipment, must also have a new type of insulating material for the pilot. Such as nuclear submarines require the use of anti-salt spray, moisture, mildew, radiation-resistant insulation materials, such as aerospace aircraft need high dimensional stability, low temperature, radiation-resistant insulation materials. If the insulating material can not meet the harsh conditions of these harsh use of the environment, will lead to military equipment in many important systems can not function properly.
Therefore, the insulation material to improve the overall level of national industry, promote the stable and rapid development of national economy plays a very important role. Dongsheng insulation materials is committed to the production of high-tech insulating materials, research and development and sales, will help the national economy lifeline of the paper industry to a new level.

A material that isolates the charged body from other parts of the electrical equipment. Commonly used solid materials are insulating sleeves. Insulating paper, laminates, rubber, plastic, paint, glass, ceramics, mica and so on. Commonly used liquid materials are transformer oil. Gaseous materials in the air, nitrogen, sulfur hexafluoride and other use more. Society is using more insulating materials. Use and industry and life, the more common is the "glass cloth tape", "plastic", ceramics and so on. Are all insulating materials.
Insulation material: Resistivity of 109 ~ 1022 Ω · Cm of the material composition of the material in the electrical technology known as insulating materials, also known as dielectric. Simply means that the charged body and other parts of the material isolation. insulation materials on the DC current has a very large resistance, under the action of DC voltage, in addition to a very small surface leakage current, in fact, almost non-conductive, and for the AC current capacitor current through, but also that is not Conductive. The greater the resistivity of the insulating material, the better the insulation performance. [1] Insulating material is an indispensable material in electrical products.
In general, electrical and electrical equipment are made of conductive materials, magnetic materials, insulating materials and structural materials. In addition to insulating materials, the other is metal materials. Motor, electrical appliances in operation, inevitably subject to temperature, electricity, mechanical stress and vibration, harmful gases, chemicals, moisture, dust and radiation and other factors. These factors have a more pronounced effect on insulating materials than other materials. It can be said that the insulation material is more sensitive to these factors, easy to deteriorate deterioration, resulting in damage to electrical equipment. So the insulation material is to determine the motor, electrical operation of the key material reliability. With the continuation of running time, insulation materials must be aging, and its aging faster than other materials, so the choice of motor, electrical life of the key material is insulating material.