FRP is a kind of glass fiber composite material, its comprehensive performance is relatively good, so the product is widely used, involving more than 20 industries, covering almost all the industrial sectors of the national economy. Among them, the chemical industry, construction, electric power, light industry, petrochemical, electromechanical, automotive and other industries have the largest number of applications. China's cutting-edge fiberglass composites have been widely used in the aviation industry. Currently, this composite material is used on both civil passenger aircraft and military aircraft. The reason why glass fiber is favored in this field is because it is a new type of functional material and structural material, which has a series of excellent properties such as high temperature resistance, corrosion resistance, high strength, small extension and good insulation.
Composition of glass steel
Glass fiber is an inorganic non-metallic material with excellent performance. It is made of natural ore. After scientific calculation and reasonable ratio of various raw materials, it is ground and homogenized at high temperature for melting, drawing, winding and weaving. Cloth and other processes finally form various types of products. The diameter of the glass fiber monofilament ranges from a few micrometers to more than 20 micrometers, which is equivalent to 1/20-1/5 of a hair strand, and each bundle of fiber strands has hundreds or even thousands of monofilaments. The outstanding characteristics of glass fiber are high strength, high modulus of elasticity, low elongation, electrical insulation, corrosion resistance, etc., and are widely used as reinforcing materials, electrical insulating materials and thermal insulation materials in composite materials. In all areas of the national economy.
FRP is a composite material obtained by compounding a thermoplastic resin with glass fiber, carbon fiber, polyamide fiber or the like. Usually, a mixture of these materials is melted and kneaded into pellets, and injection molding is carried out. There is also a molded material which is formed of a long fiber and a sheet molding material and which is formed by a press. The former is intended to impart various properties such as heat resistance, dimensional stability, impact strength, and electrical conductivity to a resin, and the latter is intended to produce a large-sized product, and the influence of the direction and content of the fiber is emphasized. The thermoplastic resins used are various, such as AS, ABS, PA, PBT, PC, PET, POM, PPS, etc., and high-performance engineering resins, which are utilized according to their different characteristics.
Footwear application
In recent years, due to the trouble of security inspection, steel safety toe caps have gradually been replaced by other non-magnetic materials, and the application of FRP as a safety toe cap is an ideal choice. Maojie Shoes Material Co., Ltd. took the lead in developing glass fiber safety toe caps. Through a large number of experimental research and development, and final product testing, we finally selected the ideal formula to produce high quality explosion-proof glass fiber safety toe caps. In September 2005, the company obtained a utility model patent from the China Intellectual Property Office. The patent number is ZL 2004 2 0091735.1.
According to the test, the indicators of the explosion-proof glass fiber safety toe cap produced by Maojie fully meet the requirements of the safety shoes EN-CSA-ANSI standard. It can resist heat of 200 ° C, cold resistance -40 ° C, and is also resistant to acid and alkali. It can meet the needs of footwear production process and is suitable for harsh climate wearing environment. Experiments show that the glass fiber safety toe cap is very environmentally friendly, no need to recycle, can be naturally decomposed by long-term exposure to ultraviolet light; it has anti-static function, anti-bacterial, non-toxic, non-volatile objects; in addition, it is ultra-light, ultra-thin, safe. Deformation and other advantages, can absorb and decompose the impact force. When it encounters a great impact, the toe cap will be radially cracked, and will not be deformed like a steel head, so it will not hurt the foot, thus providing excellent protection.
In the production of safety toe caps, steel toe caps use steel molds, and the cost of molds required to change the shape is higher, but the cost of molds for FRP toe caps is lower. For shoe factories, the process does not need to be changed, so it is extremely easy to apply. Moreover, compared with steel, aluminum and other alloy toe caps, FRP toe caps are easier to bond with materials, making processing more convenient.
In terms of end-user applications, in addition to enjoying the basic safety features, due to the light weight of the FRP toe cap, the wearer will feel more comfortable and will not lose balance due to the heavy weight of the head.
In addition, Maojie Shoes Material Co., Ltd. has also developed a glass fiber elastic pad using the good resilience of FRP. The fiberglass elastic pad can be used alone or in a common insole. The fiberglass elastic pad is molded in a standard foot shape and has a good corrective walking posture.
The shock-absorbing midsole elastic insole is treated by moisture wicking technology, which has good anti-vibration, anti-bacterial and deodorizing, perspiration, breathability and comfortable foot feeling, and is suitable for all kinds of shoes. The biggest advantage is that its rebound function makes the wearer's foot evenly stressed, and because the glass fiber in the FRP is arranged in a crisscross pattern, it has a strong anti-nail puncture effect.
At present, the global concept of environmental protection has been further strengthened. Steel toe caps can not be separated due to their close fitting with leather or lining materials. It is difficult to sort and recycle in garbage disposal, but the FRP toe and upper materials can be naturally decomposed, which is in line with Environmental trends. FRP elastic insole also plays a role in the anti-corrosion of waist and iron in safety shoes. Its corrosion resistance, oxidation resistance and excellent rebound and non-deformation characteristics will surely be more and more popular in the industry.
T/C AND 100% COTTON Woven Fusible Interlining(HDPE/LDPE COATING)
1. Features:
-- More even and smoothly grey cloth
-- Handfeel:Soft,Medium,Medium Hard and Hard as customers' require
-- Perfect bonding strength
-- Excellent shrinkage control
-- Garantee for washable,dry-washable2. Technical Data:
-- Gray cloth: 100% cotton
-- Width: 112cm3.Packing:50M/Y per roll, 2rolls per bag
Shoulder Interlining,White Shoulder Interlining,Black Color Shoulder Interlining,Red Shoulder Interlining
Baoding Garment Interlining Factory , https://www.bcinterlining.com