The main characteristics of glass fiber composite material:1. Excellent mechanical properties. The tensile strength of glass fiber composites is lower than that of steel and higher than that of ductile iron and concrete, while the specific strength is about 3 times that of steel and 10 times that of ductile iron.2. Good corrosion resistance. Through a reasonable selection of raw materials and scientific thickness design, glass fiber composite materials can be used in acid, alkali, salt, and other organic solvent environment for a long time3. Good thermal insulation performance. Glass fiber composite material has the characteristics of low thermal conductivity, and is an excellent insulation material, therefore, in the case of a small temperature difference, it does not need to do special insulation, can achieve a good insulation effect.4. Low thermal expansion coefficient. Because the thermal expansion coefficient of glass fiber composite material is small, it can be used normally under various harsh conditions such as surface, underground, seabed, high cold, desert, and so on.5. Excellent electrical insulation. It can be used to make insulators. It can still maintain good dielectric properties at high frequency. Microwave transmission is good, and suitable for use in power transmission and minefields.The development trend of glass fiber composite materials is as follows:1. At present, the development potential of high-performance glass fiber is huge, especially the advantages of high silicon glass fiber, high-performance glass fiber has two development trends: one is to focus on higher performance, and the second is to focus on industrial technology research of high performance glass fiber, and is committed to improving the process performance of high performance glass fiber, while reducing costs and reducing pollution.2. There are some shortcomings in the material preparation: the preparation of some high-performance glass fibers still has the problems of glass crystallization, high filament density, high cost, and can not meet the requirements of strength in some special uses. When the thermosetting resin is used as the matrix, the prepared composite material has difficulties in secondary processing and recycling, which can only be processed by cutting, and the recovery can only be corroded by special chemical solvents and strong oxidants, and the effect is not ideal. Although a degradable thermosetting resin has been developed, the cost problem still needs to be controlled.3. In the process of glass fiber synthesis, a new type of glass fiber composite material is prepared by various synthetic technologies. In recent years, to meet the needs of various special conditions, various surface technologies have been developed for special modification of glass fiber surface.4. In the coming period, the global market demand, especially the demand of emerging market countries, will maintain a high growth rate, and the advantages of industry leaders will become more obvious, such as China's glass fiber enterprises represented by Boulder Group will play a leading and leading role in the future global glass fiber industry. Fiberglass composite material has become one of the main raw materials in the automotive industry, fiberglass thermoplastic material because of its good economy and good recyclability, the application has a growing trend, at this stage, the widely used fiberglass thermoplastic reinforcement material application range includes instrument panel bracket, front end bracket, bumper and engine peripheral components, The coverage of most parts and sub-structural parts of the whole vehicle is realized.5. In addition to several large glass fiber production bases, small and medium-sized enterprises account for 35% of China's glass fiber industry output, most of them have single varieties, weak technology, and occupy more than 90% of the total number of employees, limited resources, poor management level of business risk, which is the focus and difficulty of the implementation of strategic changes in the industry. We should actively support and guide small and medium-sized enterprises to take the road of coordinated development, and strengthen cooperation and competition with the outside world through the formation of small and medium-sized enterprise groups to achieve the purpose of development. With the mutual penetration of the economy, the competition between enterprises is no longer fighting alone, but showing cooperation and joint.

Fiberglass chopped strand mat and seam mat are both fiberglass products, and both are glass fiber mats.Production ProcessFiberglass chopped strand mat : It is a non-woven reinforcing material made by cutting continuous glass fibers, uniformly distributing them without orientation, and applying powder or emulsion binder.Fiberglass stitched felt: It is a non-woven reinforcing material made of glass fiber rovings chopped to a certain length, laid evenly without orientation, and then sewn with threads.

Fiberglass is a composite raw material. It has strong corrosion resistance, insulation and other advantages and is used in various fields. Generally, there are three main reasons that affect the strength of  fiberglass chopped strand mat:First, the strength of  fiberglass, the strength and stiffness of  fiberglass directly affect the strength of chopped strand mat. The higher the tensile strength of the glass fiber, the greater the toughness, and the higher the tensile strength of the chopped strand mat produced.Second, the binder content. The production of Nanjing EFG fiberglass chopped strand mat needs to be produced strictly according to customer needs. When the fiber strength is determined, the strength of the chopped strand mat needs to be improved by the binder content. Generally speaking, the higher the binder content, the higher the tensile strength of the chopped strand mat.Third, the storage time. The storage time of fiberglass chopped strand mat still has some influence on its strength. After a long period of storage, the strength will decrease. This phenomenon is due to the aging of glass fiber and the chemicalization of adhesives. It is mainly caused by the erosion effect of moisture in the air on the fiberglass.

1. Fiberglass materials are used in 3D printing technology and the production of electrical insulation, and are also widely used in the production of FRP.2. Fiberglass materials are used to produce fiberglass surface mats, etc., and are also used to reinforce asphalt roofing materials.3. Fiberglass materials are used in military industry, space, bulletproof armor and sports equipment.4. Fiberglass material is a new type of green and environment-friendly reinforcing material used in high-performance reinforced (cement) concrete.