Basalt Fiber, The Best Reinforcing Material For Textile Fibers.

　　 Basalt fiber It is a kind of fiber extracted from basalt rock. Material Science It is rich in mineral plagioclase, pyroxene and olivine. Its properties are similar to carbon fiber and glass fiber, but its physical and chemical properties are stronger than that of glass fiber. Its price is lower than that of carbon fiber, and also has the function of flame-retardant and flame retardant.

basalt fibre Characteristics and uses

Basalt fiber has good processability. It can be used to make nonwovens and composite fabrics of various uses. It can also show great power in chemistry, wind power, transportation, aerospace, architecture and ocean. The reason is that it has the following properties: mechanical strength, chemical resistance, excellent thermal effect, and good sound insulation effect. Basalt fiber material is a natural mineral and belongs to volcanic rock. As a mineral, it has all kinds of colors, such as ash and black. It is an excellent mineral fiber raw material, containing 100% of inorganic substance and highly compatible fiber. Therefore, it can be matched with all kinds of textile fibers and become an additive for fiber materials. This mineral can be found almost everywhere in the world. In the past, people used it to make building materials or to repair roads. However, few people know that basalt fiber contains 100% continuous fibers, and the fiber length and diameter are very high. Therefore, it has strong toughness, easy to bend, low cost, good air permeability, harmless to environment and health, so it is currently regarded as the best asbestos substitute. But basalt fiber has more functions than that. Its natural appearance and color can be the best decorative effect. However, it is even more surprising that basalt fiber's characteristics and functions depend on strengthening other textile fibers. The textile fibers are characterized by high strength, high coefficient, corrosion resistance, high temperature resistance, wide working temperature and good handle.

The specific resistance of basalt fiber (its density determines its breaking stress) is much higher than that of steel fibers. The basalt density is only 5% higher than that of the glass, and the tensile modulus of the basalt is higher than that of glass fiber. This makes basalt fiber the best composite textile strengthening fiber. Not only that, it also has a stable size, because basalt fiber's curvature and softness are not easy to change, and has good fatigue resistance. It is one of the fibers with the best friction coefficient in the world.

Because of its insulation, basalt fiber can also produce extensive products ranging from insulated dashboard to circuit board, and its application is very extensive. Xuan Wuyan's demand is rising every year. Basalt can be applied to any place where fiberglass is used. {page_break}

Development history of basalt fiber in the world

The research and development of continuous basalt fiber (CBF) abroad has experienced decades of arduous efforts, and has achieved substantial progress in basalt fiber technology in the past ten years. At the end of the last century, after the collapse of the Soviet Union, CBF has been developing for more than ten years. In addition, with the rapid development of the world economy, the world has ushered in a new wave of investment CBF, which has strongly promoted the strong development of this composite material. However, due to the high technical content and difficult technology of producing basalt fibers, only ten countries, such as Ukraine, Russia, the United States, Canada, China and so on, can produce this kind of fiber material all over the world.

In 2005, the world's largest 300-1500T grade continuous basalt fiber production line in Ukraine has 4, 4 in Russia, 2 in the United States, 1 in Georgia, Canada and Germany. TOYOTA, a joint venture in Kiev, Ukraine, produces an annual output of 800TCBF in 2005, and all products are sold to Japan. The company is planning to expand its new 5000TCBF plant with an annual output of 350, and plans to build a 10000 ton continuous basalt fiber plant in the area of Kiev, Ukraine. Russia also established the SUDAGLASS basalt fiber factory in Ohio, USA, and was formally put into operation in 2006.

The Basalt Fibre Association BAF has been established in Dezhou, USA, and will take the opportunity of new products and technologies to promote the application of basalt fiber materials.

At present, the most widely used CBF products are CIS countries. They have been successfully applied to many fields and exported to the West in large quantities. Recently, they transferred relevant technologies to Canada and built 1 production lines, and also negotiated technology transfer with countries such as China, Vietnam, Poland and India. Owens Corning of the United States has also carried out industrial research on the project. It has built a large production line with an investment of about 100 million US dollars, but it is too aggressive because of its poor technology, and it can not run continuously after the commissioning of the plant and affect the industrial production. Owens,

Although the development of foreign continuous Xuan Wuyan fibers has attracted worldwide attention, the overall technology of producing continuous Xuan Wuyan fibers in the world is still in the initial stage of development. This is due to the difficulty of special production processes such as easy crystallization and poor thermal conductivity of pure natural basalt ore solution. At this stage, the stable production technology of basalt fiber in the world generally stays at the primary level of the 200 hole drawbead, while the glass fiber production used for drawing the wire has reached 2000 holes. Therefore, some countries in the world are carrying out the research and development of the porous number plate with higher production capacity. The continuous Xuan Wuyan fiber production needs to be further explored and innovated in the aspects of production technology and equipment, production capacity and energy consumption reduction.

China's basalt fiber industry in the ascendant

China's continuous basalt fiber R & D has been carried out intermittently and intermittently by the National Institute of building materials science and the Nanjing glass fiber research and Design Institute since 70s of last century, but it has not been successful. Up to 2002, China formally put the "continuous basalt fiber" in the National 863 plan. The 3 member shareholders of the Shenzhen Russia gold carbon Mstar Technology Ltd (the joint venture of Shenzhen Golden House Vacuum Technology Co., Ltd. and a Russian Military Material Research Institute) and the large private enterprise Hengdian group and other 3 shareholders were inject 20 million yuan. In December 2003, the Hengdian group Shanghai gold Basalt Fiber Co., Ltd. was set up. The company's declared "continuous Xuan Wuyan fiber" project, approved by the Ministry of science and technology and the Ministry of finance, has been officially approved as the third batch of technological innovation fund for small and medium enterprises in 2004. It was listed as a national Torch Program after being approved by the Ministry of science and technology in May 8, 2004. It was also included in the national support loan interest discount technology project. In September 21, 2005, this "continuous Xuan Wuyan fiber project" was identified as the Shanghai high and new technology achievement transformation project. {page_break}

After two years of technological development, Hengdian group Shanghai gold gold Basalt Fiber Co., Ltd. has adopted the innovative production technology and one-step process, and has obtained the research and development achievements of YISHION basalt (without any excipients) as raw material to produce continuous basalt fibers, and has achieved industrialized production. The company not only mastered the production technology of electric melting furnace, flame furnace and gas electricity combination, but also produced products such as multi axial fabric resin matrix composite and basalt fiber sheet and so on. The company has exported a series of continuous basalt fiber spun yarn with a diameter of 7 micron per year to European customers during the Spring Festival this year.

At present, the development of the Hengdian group Shanghai gold gold Basalt Fiber Co., Ltd. is following Russia and other Commonwealth of Independent States and the United States after the world has a certain scale, ranking the sixth production plant. Recently, the national development and Reform Commission (NDRC) is making plans for medium and long term development. In the "China Chemical Fiber Industry Development Strategy Research Report - new and high technology fiber sub report" (Draft), the continuous basalt fiber has been clearly listed as the four major high-tech fibers in the medium and long term development in China, which include carbon fiber, aramid fiber and ultra-high molecular weight polyethylene fiber. Among them, experts and scholars predict that the development of basalt continuous fiber will be 10 thousand tons in 2010 and 7~10 tons in 2020.

The level of technology and technology is the basis for measuring whether an enterprise has advanced nature, whether it has market competitiveness and whether it can continue to lead the competitors. With the rapid development of basalt fiber market in China, the application and R & D of its core production technology will become the focus of attention in the industry. Understanding the R & D trend, process equipment, technology application and trend of basalt fiber production technology at home and abroad is very important for enterprises to enhance product specifications and enhance market competitiveness.