The hottest new glass fiber products abroad are de

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Foreign new glass fiber products are developing in the direction of multi-material composites

according to the recent prediction of foreign authorities, the total global production capacity of glass fiber in 2010 was 4.715 million tons, of which the production capacity of untwisted roving was 3.84 million tons: 850000 tons in Europe, 790000 tons in America and 2.2 million tons in Asia. The capacity of textile yarn is 875000 tons: 45000 tons in Europe, 180000 tons in America, 600000 tons in China and 50000 tons in Japan. The above capacity is expected to achieve 70% - 80%. In 2010, the actual total output of glass fiber in the world is expected to reach about 3.3 ~ 3.8 million tons

at present, foreign new glass fiber products are developing in the direction of high-rise, high value-added and multi-material composite market confidence. New products are changing with each passing day. The world now has more than 5000 varieties and 60000 specifications, and is developing rapidly with an average annual increase of 1000 ~ 1500 varieties and specifications

in the development of new glass fiber products, the United States is at the forefront of its peers in the world, and AGY company is the fastest. It is reported that AGY company of the United States announced on March 24th, 2009 that it would launch a low loss glass fiber yarn l-glass?. The low dielectric constant (DK) and low loss factor (DF) properties of L glass fiber are suitable for circuit boards that require higher signal speed and signal integrity than E glass fiber reinforced epoxy materials

low loss for high-speed use 1 is to adhere to the plastic processing industry direction of "resource-saving, environment-friendly and technological innovation". There are two traditional manufacturing methods of laminates. One is to use high-performance epoxy resin and E-glass fiber, but this will limit the DK and DF properties of the products. The other is to use low dk/df resin (such as PTFE) and ceramic fiber, plus a small amount of E glass fiber. Although much lower dk/df performance can be obtained in this way, its material and manufacturing cost are very high. Low glass fiber content will also reduce the dimensional stability of laminates. The use of L glass fiber can make the epoxy base plate reach a very low dk/df, and make the PTFE base plate adopt a higher glass fiber content, so as to overcome the above limitations

at 10GHz frequency, the dielectric constant of L glass fiber is 4.86 and the loss factor is 0.0050. In contrast, the dielectric constant of E glass fiber at 10GHz is 6.81 and the loss factor is 0.0060. The thermal expansion coefficient of L glass fiber is 3.9ppm/℃, while that of E glass fiber is 5.4ppm/℃. This makes l glass fiber an ideal material for IC packaging substrate, because the mismatch between thermal expansion coefficient and silicon will be aggravated due to the thermal environment, which will cause circuit board defects

ag keep lubricating the L glass fiber yarn of Y company is supplied in a variety of sizes and specifications, and can be woven into low loss glass cloth according to the fabric grades of 1060, 1080, 2113/2313 and 2116. In addition, other numbers of yarn can be produced according to market needs

then, AGY company launched a high-performance S-L glass fiber Twistless roving for long fiber reinforced thermoplastic (LFT) in August 2009. S-1 glass fiber is developed by AGY to meet the market demand for higher performance and lower cost materials. It fills the cost performance gap between E glass fiber and S-2 glass fiber with higher performance. The excellent balance between performance and cost enables manufacturers to make the most of the benefits of high-strength glass fiber and develop attractive new applications

according to relevant research, LFT only contains 32% S-1 glass fiber. Note the following: it can provide the performance equivalent to 60% e glass fiber reinforced products. Reducing the content of glass fiber can improve the impact resistance and appearance quality, and make the molding of composites easier. In turn, increasing the content of S-1 glass fiber can make use of the high performance of this fiber to develop new applications. S-L glass fiber can be used in a variety of thermoplastics, such as polycarbonate, polyetherimide, polybutylene terephthalate, polyamide 66, etc. Compared with traditional E glass fiber, S-1 glass fiber has better hydrolytic stability, with tensile strength increased by 30% and tensile modulus increased by 18%. The supply products of S-1 glass fiber include untwisted roving and chopped precursor

recently, the company added a novel glass fiber biomaterial to its S-3 special glass fiber family. This product is called HPB? The biocompatible glass fiber is suitable for long-term medical implantation for more than 30 days. It is compatible with a variety of thermoplastic polymers such as PEEK, polyetherimide, polyphenylene sulfide, etc

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