2. Expanding the types of glass fiber Modern industry requires more and more diverse functions of composite materials, and it is more professional and high-level. With the development of the glass fiber industry to this day, melting and forming technology has also reached new heights. In recent years, the industrialization process of glass fibers with better special functions has been accelerated, and the proportion of traditional E glass fibers is also increasing, mainly to meet new industries (aerospace, wind power, environmental protection, etc.) The performance of composite materials in the field is improved. The glass fiber developed around better mechanical (strength, modulus) performance, better corrosion resistance (acid, alkali) performance, better heat resistance and better electrical (dielectric) performance, has special Functional composite products provide more choices. 3. Emphasis on the development of reinforced thermoplastic substrates Among the polymer materials, the proportion of thermoplastics is large. They can be reused by hot processing, and the effect of modification with glass fiber is remarkable. Therefore, the demand for glass fiber reinforcement in recent years is higher than the growth rate of thermosetting materials. This part of the United States has accounted for about 40% of the total glass fiber reinforced plastics. Glass fiber reinforced thermoplastics should solve the technical difficulties of mixing glass fiber into the plastic and mixing it with high-viscosity plastics. To get a good reinforcement effect, it is necessary to increase the glass fiber content and maintain a good reinforcement shape. The current drive in this market has caused all glass fiber production enterprises to concentrate on the development of special plastic fiberglass products. Some cooperate with engineering plastics companies on fiber infiltration agents, product forms, and plastic modification and plasticization processes. Continuous improvement. 1. For chopped fibers, according to the difference of reinforced plastics (PP, PA, PET, etc.) and the final injection and extrusion products, develop a series of high-performance products. In recent years, it is also devoting itself to the development of special LFT products, such as OC's Performax and PPG's tufRov, JM's StarROVTMLFTPlus and other products, which can increase the retention length of glass fiber in reinforced plastic products from about 0.5 mm to 2.1 mm ~ 4 mm, greatly improving the performance of plasticized products. 2. Let the reinforced plastic fiber and glass fiber form a mixed yarn first, such as Saint-Gobain's Twintex and JM's Gmfil-G? And combitex ?. The mixed yarn can be directly used for winding and pultrusion. The mixed yarn is processed into a composite fiber fabric, and then the composite fabric is processed into a plate, and then further made into glass fiber reinforced plastic products. This product has high glass fiber content and good reinforcement effect. 4. In order to enhance some high-performance plastics, continuous glass fiber yarn, unidirectional cloth or glass fiber fabric is also used, pre-stained plastic to form reinforced belts and sheets, and then further hot-pressed into high-performance plasticized products. There are already mass-produced glass fiber reinforced sheets (plates) such as PPS and PEEK, which are used in high-demand fields such as aviation. American phoenixxTPC, German Bond-Laminates and KREMPEL have achieved good results in the development of pre-preservation materials, and domestic companies have begun to develop in this area. 1. Knitted (warp knitted) products. This product is more suitable for the choice of directionality and compoundness. Glass fiber can be welcomed without wrinkles. Some professional manufacturers abroad have developed rapidly. For example, German SAERTEX has rapidly expanded 7 factories in the past few years. Large glass fiber companies also pay attention to extend this product, such as Alhstrom has more than 80 equipment. In recent years, major domestic glass fiber companies have begun to pay attention to these products, and some professional manufacturers have been born, such as Lianyang Company. Market demand and technological development have brought these products to an annual growth rate of around 20%, and the variety is also increasing. 2. Woven and narrow fabrics. The woven structure is formed by diagonally crossing the yarn, and its fabric has the characteristics of balanced peripheral. This kind of base material is used to reinforce composite materials such as tubes and pipes abroad, such as aircraft engine shells, pipeline leakage repair, manufacturing of artificial limbs and sports equipment. Application, our country has not developed enough. The so-called narrow fabric refers to belts, ropes, etc. that are under 30 cm. Such reinforced substrates are sometimes used alone, such as winding and medical bandages, and are sometimes used in conjunction with yarn-state and wide fabric reinforced substrates. The structure and processing method of this fabric are different to form a multi-spec product. With the pursuit of structural optimization of composite materials, narrow glass fiber reinforced base materials have become indispensable supporting materials. Some foreign companies specialize in the production of such products, and recently some domestic companies have begun to specialize in the production of such products. 3. Multidimensional fabric. In order to overcome the shortcomings of the weaker interlayer connection after the planar glass fiber reinforced composite material, in the past 20 years, enterprises have actively researched and developed two-dimensional half, three-dimensional and other multi-dimensional fabrics. Some professional technology development units provide multi-dimensional fabric technology and equipment as needed, including weaving, weaving and knitting. The multi-dimensional glass fiber fabric can be used to better reinforce the three-dimensional composite material, and the reinforced composite material can withstand mechanical stress and thermal force in various directions. Multi-dimensional fabric reinforced substrates are increasingly used in the aerospace industry. In recent years, people have also used double needle bed knitting and three-dimensional weaving technology to develop connected double-layer or more glass fiber hollow fabrics that can be used to directly reinforce the fasting composite sheet. There are companies in China and abroad actively developing. 4. Composite fabric. To make large composite products Stock Pot With Compound Bottom Stock Pot With Compound Bottom,All Clad Stock Pot,Stock Pot With Compound Bottom Of Foot,Large Stock Pot Jiangmen Junerte Stainless Steel Kitchenware Co.,Ltd , https://www.junertejm.com
3. Needle-punched chopped strand mat, continuous mat, and heat-modified PP sheet on both sides to form GMT thermoplastic sheet, and then use this sheet to laminate into larger automobile accessories and other products. The glass fiber felt with core material is also reinforced or mixed with some plastic fibers. The latest development is to directly press the hot state of GMT into a product, called GMT-D, in order to obtain higher production efficiency.
Fourth, consolidate the market of traditional reinforced thermosetting resin substrates Enhanced thermosetting resins are the largest traditional market for glass fiber substrates. In recent years, its development has three main requirements: embody better structural characteristics; adapt to the closed mold (such as RTM, vacuum casting, etc.) and the processability of efficient mass production; adapt to the requirements of large and fine FRP products. Therefore, the requirements for glass fiber substrates are, on the one hand, traditional products to improve quality and expand the product range, such as high-quality SMC and winding yarn, thin high-quality chopped felt, etc .; on the other hand, to expand some new products, mainly Have: