Glass fiber has excellent performance and many application scenarios: Glass fiber is an inorganic non-metallic composite fiber material with excellent performance, which has a series of advantages such as low cost, light weight, high strength, high temperature resistance and corrosion resistance. Its specific strength reaches 833Mpa/gcm3, second only to fibra de carbono (over 1,800Mpa/gcm3) among common materials. Due to the mature mass production technology, low cost, numerous sub-categories, and comprehensive cost-effectiveness of fiberglass premium, different products can be designed according to different scenarios, so it is widely used in various scenarios and is the most important inorganic non-metallic composite material today. one.
There are many classification methods and types of glass fiber: the glass fiber industry is divided into three parts: glass fiber yarn, glass fiber products, and glass fiber composite materials, each of which has a variety of varieties. Among them, glass fiber yarn has many classification methods. According to the oxide content, it can be divided into alkali-free yarn, medium alkali yarn, etc.; according to diameter, it can be divided into glass fiber rovings, finre glass yarn, etc.; according to length, it can be divided into continuous glass fiber, fixed-length Glass fiber, fiberglass scrap, etc.; According to the product form, it is divided into twisted yarn and untwisted yarn, and can also be woven into fiberglass mat cloth. In some applications, the untwisted roving is further chopped to make Glass fiber strands.
The glass fiber industry involves many upstream and downstream, and is divided into three links: glass fiber yarn, glass fiber products, and glass fiber composite materials: the glass fiber industry chain is long, and the upstream mainly involves basic industries such as mining, chemical industry, and energy. The downstream of glass fiber is various application industries, including building materials, electronic appliances, wind power generation, industrial pipe tanks, aerospace and military industries. At present, the downstream application field of glass fiber is still expanding, and the industry ceiling is still gradually improving.
Glass fiber composite materials: the scale has grown steadily, and the proportion of thermoplastic materials has increased
Fiberglass reinforced composite is the composite material with the largest output and the most extensive application, accounting for 90% of the world's total: Broadly speaking, a composite material is a material with new properties composed of two or more different substances in different ways. Generally, it consists of two materials. Composition: Reinforcing material and matrix material. Reinforcing materials include glass fiber, carbon fiber, aramid fiber, etc. The function of the matrix material is to bond the reinforcing material into a solid integral protective reinforcing material, transmit the load, and prevent the crack propagation, including resin-based, metal-based, ceramic-based, and cement-based. According to the "European Glass Fiber Reinforced Composite Materials Market Report 2020", among composite materials, resin-based glass fiber composite materials are the world's largest and most widely used composite materials, accounting for 90%. According to data from China Fiber Composites Network, my country's glass fiber composite production will increase from 380,000 tons in 1999 to 5.84 million tons in 2021, with a CAGR of 13.2%.
Composite materials are divided into thermoplastic materials and thermosetting materials. Thermoplastic materials can be recycled multiple times, and the proportion of output continues to increase: glass fiber composite materials can be divided into thermosetting composite materials and thermoplastic composite materials. The main difference is that thermoplastic materials can be heated for multiple times. Multiple plastics, and thermosetting materials will undergo cross-chain curing reaction after one-time thermoplastic addition and no longer deform. Based on this difference in performance, thermoset materials have the characteristics of high stiffness and good heat resistance; while thermoplastic materials have the advantages of recyclability and high production efficiency. According to the data of China Fiber Composites Network, from 1999 to 2021, the output of thermoplastic fiberglass composites in my country increased from 80,000 tons to 2.74 million tons, with a CAGR of 17.4%; the output of thermosetting fiberglass composites increased from 300,000 tons to 3.1 million tons. , CAGR reached 11.2%; the proportion of thermoplastic materials continued to increase.
My country's glass fiber industry: After three stages, it is currently in a period of high-quality development
My country's glass fiber industry has experienced more than 60 years of development and is divided into four stages. From small to large, from weak to strong, the current production capacity, technology and product structure are all at the world's leading level. The development of the industry can be roughly summarized into four stages. Before 2000, my country's glass fiver industry was mainly based on the crucible production method with small output, which was mainly used in the field of national defense and military industry. Since 2001, the pool kiln technology has been rapidly popularized in China, and the domestic output has increased rapidly, but the output is mainly low-end products, and it is heavily dependent on exports. Affected by the financial crisis in 2008, the global market size shrank, and my country's fiberglass industry overtook on the curve, becoming the world's largest country in terms of production. After 2014, my country's glass fiber industry has entered an era of upgrading, gradually entering a period of high-quality development, gradually reducing its dependence on overseas markets for near-exports, and significantly increasing its influence in the international market.
Hebei Yuniu Fiberglass Manufacturing Co., Ltd. is a glass fiber material manufacturer with more than 16 years of experience and 8 years of export experience, which can provide you with high-quality glass fiber composite materials.