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Glass fiber reinforced concrete FRC, glass fiber reinforced plastic FRP is divided into two kinds of short cut reinforcement and filament reinforcement, short cut reinforcement is to cut the glass fiber into very short, generally a few millimeters long mixed into concrete and plastic particles, and filament reinforcement is made of continuous glass fiber as the reinforcing material, synthetic resin as the matrix material, and mixed with the appropriate amount of auxiliary agent composite composite materials, there are also woven into a variety of cloth to reinforce, the product can be plates, steel bars, pipes.
**Mainly depends on the difference between glass fiber materials and the selection of resin, glass fiber is good and bad, ** dozens of times different, the most expensive is high-strength S glass fiber tens of yuan to hundreds of yuan square meters, followed by basalt glass fiber, and then alkali-free E glass fiber, as well as alkali C glass fiber, alkali-resistant glass fiber, and so on. Clay glass fiber is the cheapest few cents per square meter, but it is basically eliminated, and foreign countries generally require alkali-free glass fiber.
It depends on what you're using.
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**Mainly depends on the difference between glass fiber materials and the selection of resin, glass fiber is good and bad, ** dozens of times different, the most expensive is high-strength S glass fiber tens of yuan to hundreds of yuan square meters, followed by basalt glass fiber, and then alkali-free E glass fiber, as well as alkali C glass fiber, alkali-resistant glass fiber, and so on. Terracotta fiberglass is cheapest for a few cents square meters.
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First of all, in terms of material, the addition of glass fiber.
The length is different, the short glass fiber is generally less than 1mm, and the long glass fiber can reach a dozen or longer lengths. In terms of performance, long glass fiber reinforced plastic can not only effectively improve the rigidity, impact strength, creep resistance and dimensional stability of the product, but also has superior properties such as low warpage, which can be said to be the evolution and upgrade of short glass fiber, so the long fiber new material series products are mainly used in automobiles, home appliances, machinery and other parts and accessories After glass fiber reinforcement, glass fiber is a high mold source temperature resistant material, so the heat resistance temperature of reinforced plastics is much higher than that before without glass fiber, especially nylon plastics;
It restricts the mutual movement between the polymer chains of plastics, so the shrinkage rate of reinforced plastics decreases a lot, and the rigidity is greatly improved;
Reinforced plastics will not stress crack, and the impact resistance of plastics is much improved;
Glass fiber is a high-strength material, which also greatly improves the strength (tensile strength) of the plastic.
Compressive strength, flexural strength.
have improved a lot)
Due to the addition of glass fiber and other additives, the combustion performance of reinforced plastics is reduced a lot, and most materials cannot be ignited. Glass fiber is more temperature resistant than organic fiber, non-combustible, corrosion-resistant, good heat and sound insulation, and tensile strength.
High and electrically insulating. But brittle and poor wear resistance. Used to manufacture reinforced plastic or reinforced rubber, as a reinforcing material, glass fiber has the following characteristics, which make the use of glass fiber far more extensive than other types of fiber, and the development speed is far ahead of its characteristics are listed below
1) High tensile strength and small elongation (3%). 2) Elasticity coefficient.
High and rigid. (3) The elongation within the elastic limit is large and the tensile strength is high, so the impact energy absorption is large. (4) It is an inorganic fiber, which is non-flammable and has good chemical resistance.
5) Low water absorption. (6) The stability and heat resistance of the scale are good. (7) Good processability, can be made into strands, bundles, felt, weaving and other different forms of products.
8) Transparent and transparent to light. (9) Completed the development of Mingzen, a surface treatment agent with good adhesion to resin. (10) **Cheap.
11) It is not easy to burn, and can be melted into glass-like beads at high temperature.
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1.Easy plastic: Through molds, a variety of complex surface effects can be shaped, as well as a variety of curved surfaces, hyperboloid and other shapes.
2.High strength: high-grade cement is used as cementitious material, high-quality quartz sand is used as aggregate, alkali-resistant glass fiber or steel fiber or composite organic fiber is used as reinforcing material, and supplemented by additives such as propylene milk and water reducer, and the physical properties are excellent.
Through the test, the compressive strength of concrete GRC is 1 times that of C50 concrete, the tensile strength is 3 times that of C50 concrete, the shear strength is several times that of C50 concrete, and the density is only 75% of that of C50 concrete. 3.Any Specification:
Through mold making, it can be cut arbitrarily, and the thickness can be easily made from 10mm to 30mm to 50mm. 4.Fire Protection:
All raw materials are non-combustible materials, and they are tested to be A1 fireproof materials. 5.Durable:
Concrete GRC is a cement product, improved from decorative concrete, its essence is a composite material composed of cement, sand, alkali-resistant glass fiber, and the service life is equivalent to concrete. 6.Green and environmentally friendly:
Bozhong Concrete GRC can use waste stone powder, stone ballast, broken concrete foundation Mengshan gravel, etc., to reduce the pollution of these wastes to the environment; In some fields, concrete GRC can completely replace the use of natural stone, which can reduce the mining amount of natural stone and reduce the damage to the environment caused by mining stone! Therefore, Concrete GRC is a real green and environmentally friendly material! 7.
Factory prefabrication: Concrete GRC is all based on the actual measurement data of the project site for mold production, using factory prefabrication, production knows the burial process, according to the design requirements of the installation node prefabricated and embedded, convenient installation and construction, easier to control the quality of components and the duration of the project;
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Now I will introduce to you the types of commonly used glass fiber glass fiber reinforced composites for your reference.
At present, the most commonly used reinforcement composites on the market are glass fiber reinforced composites (GFRP), carbon fiber reinforced composites (CFRP) and aramid fiber reinforced composites (AFRP). This article will give you a brief analysis of these three materials.
1.Glass fiber reinforced composite: Glass fiber reinforced composite material refers to a material composed of glass fiber and its products as reinforcing materials and matrix materials through a certain molding process.
Glass fiber is a filament formed by rapid drawing of molten glass, which can be divided into alkali, alkali-free, medium alkali and special glass fibers according to the composition of raw materials, such as high silicon, quartz fiber, etc. According to the different resin matrix, it can be divided into epoxy glass fiber composites, phenolic glass fiber composites, polyester glass fiber composites, etc. Glass fiber is light and high-strength, insulation, low coefficient of thermal expansion, and can withstand high temperatures of more than 1000, and is used in building materials, industrial manufacturing, electronic communications, wind power generation and other fields.
2.Carbon fiber reinforced composites: The raw materials of carbon fiber are polypropylene-based fibers and asphalt-based fibers, and after high-temperature carbonization and carbonitization, carbon fiber precursors are made into carbon fiber precursors, with a carbon content of up to 90%.
Its weight is lighter than aluminum, its strength is higher than that of steel, its elastic modulus and tensile modulus are very high, and it has the advantages of high temperature resistance and corrosion resistance. It has many grades, such as T300, T800, T1000. The main use of carbon fiber is to compound with resins, metals, ceramics and other matrices to make structural materials.
The comprehensive indexes of specific strength and specific modulus of carbon fiber reinforced epoxy resin composites are the highest among existing structural materials. In the field of density, stiffness, weight, fatigue characteristics and other strict requirements, in the occasion of high temperature and high chemical stability, carbon fiber composite materials are quite advantageous.
3.Aramid fiber reinforced composites: The full name of aramid is aromatic polyamide fiber, which can be mainly divided into para-aramid, meta-aramid and heterocyclic aramid, which was originally used as aerospace science and technology and important strategic materials, with the development of science and technology, aramid is gradually applied to the civilian field.
Aramid fibers have good mechanical properties, stable chemical properties, flame retardancy and heat resistance. In the field of military industry, aramid composite materials are widely used in high-performance structural parts and special electronic equipment of aircraft, ships, submarines, tanks, missiles, radars. In the civil field, it is mainly used for high-performance structural parts of aerospace, aviation, high-speed trains and automobiles, high-end insulation materials for large-scale motors and transformers in rail transit, nuclear power, hydropower and power grid engineering, high-performance thermal insulation and flame retardant materials for construction, high-end circuit boards and printing, medical materials, etc.
Of the above three composite materials, glass fiber has the widest range of use, the most people-friendly, and the best comprehensive performance of carbon fiber. The research on these three materials is still deepening, and the application fields will be further expanded in the future.
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Glass fiber reinforced plastic is a composite plastic with glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin as matrix materials. As a composite material, FRP has been widely used in aerospace, railway, decorative construction, household furniture, building materials, sanitary ware and sanitation engineering and other related industries due to its unique performance advantages.
According to the different fibers used, FRP can be divided into glass fiber reinforced composite plastic (GFRP), carbon fiber reinforced composite plastic (CFRP) and boron fiber reinforced composite plastic. It is made of fiberglass and its products (glass cloth, tape, felt, yarn, etc.). ) as a reinforcing material, and synthetic resin as a matrix material.
Fiber-reinforced composites consist of reinforcing fibers and a matrix. Fibers (or whiskers) are small in diameter, generally less than 10 microns, and are brittle materials that are susceptible to damage, fracture and corrosion. The matrix is a ductile material with viscoelastic and elastoplastic properties.
The relative density of FRP is between, only 1 4 1 5 of carbon steel, but the tensile strength is close to or even more than that of carbon steel, and the strength is comparable to that of high-grade alloy steel. The tensile, bending and compressive strength of some epoxy FRP can even reach more than 400MPa.
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Yes. Fiberglass, also known as glass fiber reinforced plastic, refers to the reinforced plastic with glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, and glass fiber or its products as reinforcing materials. FRP has the characteristics of light and hard, non-conductive, stable performance, high mechanical strength, less utilization, corrosion resistance, etc., and can replace steel to make machine parts, automobiles, ship shells, etc.
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Glass fiber reinforced plastic (FRP) is a composite plastic with glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin as matrix materials. As a kind of composite material, FRP has been widely used in aerospace, railway, decorative construction, home furniture, building materials, sanitary ware and sanitation engineering and other related industries due to its unique performance advantages.
According to the different fibers used, glass fiber reinforced plastics are divided into glass fiber reinforced composite plastics (GFRP), carbon fiber reinforced composite plastics (CFRP) and boron fiber reinforced composite plastics. It uses glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as the reinforcing material, and synthetic resin as the matrix material. Fiber-reinforced composites are composed of reinforcing fibers and a matrix.
Fibers (or whiskers) are small in diameter, typically less than 10 microns, and are brittle materials that are susceptible to damage, fracture and corrosion. The matrix is viscoelastic and elastoplastic and is a ductile material.
The relative density of glass fiber reinforced plastic is between, only 1 4 1 5 of carbon steel, but the tensile strength is close to or even more than that of carbon steel, and the strength can be comparable to that of high-grade alloy steel. The tensile, flexural and compressive strength of some epoxy FRP can even reach more than 400 megapascals.
Main disadvantages: 1 Small modulus of elasticity 2Poor long-term temperature resistance 3Low interlaminar shear strength.
Key Benefits:1Good corrosion resistance 2Good dielectric properties 3Good thermal performance 4Strong designability 5Excellent manufacturability.
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Glass fiber or mineral reinforced polypropylene material. The reasonable length of glass fiber is controlled through the process and screw combination, and the glass fiber has better compatibility with resin is optimized for additive treatment, which greatly improves the material strength, heat resistance and size shrinkage, and the products are mainly used in washing machine barrels, automobile fans, bottom guard plates, instrument skeletons, household tool shells, etc.
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Glass fiber reinforced plastic (GRP), commonly known as glass fiber reinforced plastic, is the main variety of polymer composite materials. It has stronger impact resistance than ordinary plastics; It is lightweight, high mechanical strength, and corrosion-resistant FRP scientific name glass fiber reinforced plastic. It is a composite material that uses glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as the reinforcing material and synthetic resin as the matrix material.
The concept of composite materials refers to the fact that one material cannot meet the requirements of use, and needs to be compounded by two or more materials to form another material that can meet people's requirements, that is, composite materials. For example, a single glass fiber, although the strength is very high, but the fibers are loose, can only withstand tensile force, can not withstand bending, shear and compressive stress, and is not easy to make a fixed geometric shape, is a soft body. If they are bonded together with synthetic resins, they can be made into a variety of rigid products with fixed shapes, which can withstand both tensile stresses and bending, compression, and shear stresses.
This results in a glass-fiber-reinforced plastic matrix composite. Because its strength is equivalent to steel, and contains glass components, but also has the same color, shape, corrosion resistance, electrical insulation, heat insulation and other properties as glass, like glass, the history formed this easy-to-understand name "FRP", this term was written by the former Minister of Building Materials Industry Lai Jifa comrade! ), from the building materials system to the whole country, is still widely used.
It can be seen that the meaning of FRP refers to the reinforced plastic with glass fiber as a reinforcing material and synthetic resin as a binder, which is called glass fiber reinforced plastic in foreign countries.
With the development of China's FRP industry, as a plastic-based reinforcing material, it has been expanded from glass fiber to carbon fiber, boron fiber, aramid fiber, alumina fiber and silicon carbide fiber, etc., undoubtedly, these new fibers made of reinforced plastics, are some high-performance fiber reinforced composite materials, and then use the common name of FRP can not be summarized. Considering the origin and development of history, FRP * composite materials are usually used, so that the name is more comprehensive.
Uses: FRP as a new type of engineering material, because it has some outstanding excellent properties, so from cutting-edge technology to various sectors of the national economy, there are broad application prospects, and with the development of production technology, the application of FRP will be more and more extensive. During the Second World War, FRP was mainly used to manufacture various munitions and munitions, such as FRP radomes, aircraft fuel tanks and other small quantities of munitions.
After the Second World War, FRP products began to develop to civilian aspects, such as FRP flower pots, FRP yachts, cars, bathtubs, etc. !$ years later, the application of FRP in the military industry has been rising, such as military vehicles, boats, bulletproof equipment, aircraft, rockets, missiles, submarines and other parts of military supplies.
Many countries (such as Britain, France, Germany, Japan, etc.) have successively used FRP products in aircraft, missiles, ships, transportation, construction, petrochemical industry, electrical machinery, etc.
Glass fiber is an inorganic non-metallic material with excellent performance, with a wide range of advantages, such as good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but the disadvantage is brittleness and poor wear resistance. It is made of glass balls or waste glass as raw materials by high-temperature melting, drawing, winding, weaving and other processes, and the diameter of its monofilament is a few microns to more than 20 microns, and each bundle of fiber precursors is composed of hundreds or even thousands of monofilaments. Glass fiber is commonly used as a reinforcing material in composite materials, electrical insulating materials and thermal insulation materials, circuit substrates and other fields of the national economy. >>>More
Glass fiber is the main reinforcing material in FRP, the orderly distribution of the fiber of the cloth, resulting in the final force of FRP products also need to consider different directions, glass fiber felt, the direction of the yarn is disordered, and the product FRP is bound to be able to withstand the force added from multiple directions. However, because the fibers become shorter than the longer fibers, the loss of strength is also significant. The specific reinforcement depends on what the FRP parts are and what process is used.
Glass fiber (original name in English: glass fiber or fiberglass) is an inorganic non-metallic material with excellent performance, with a wide range of advantages, good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but the disadvantage is brittleness and poor wear resistance. It is made of glass balls or waste glass as raw materials by high-temperature melting, drawing, winding, weaving and other processes, the diameter of its monofilament is a few microns to more than 20 meters of microns, equivalent to 1 20-1 5 of a hair, each bundle of fiber precursor is composed of hundreds or even thousands of monofilaments. >>>More
1. The characteristics are different.
Fiberglass. The advantages are good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. >>>More
Fiberglass. fibreglass) is an inorganic non-metallic material with excellent properties. >>>More