The application of composite products in the hotte

The application of composite products in the construction industry has more advantages

whether it is a new construction project or a repair project, among them, the advantages of plastic composite construction products are gradually being tapped, including durability, light weight, corrosion resistance, high strength and low maintenance. Composite products have high application flexibility due to their good designability. Technically, we call them fiber reinforced plastics/polymers (glass fiber reinforced plastics), which are usually composed of two raw materials: reinforcing fibers and polymer adhesives (usually called matrix). The mechanical properties of plastic composites, such as stiffness and strength, are usually determined by factors such as product size, shape, proportion, weight/volume, and reinforced fiber materials. The type and addition proportion of plastic resin matrix make the finished product have different physical properties, such as impact resistance. In a word, all kinds of materials learn from each other in performance and produce synergistic effect, so that the comprehensive performance of the composite is better than that of the raw materials to meet various requirements. Fillers or additives can also make the finished composite material have ultraviolet (UV) light resistance or fire resistance. The leading production technology of fujinan Shijin extensional composite materials provides people with more application opportunities, and can customize high-performance composite products for all kinds of commercial and residential buildings

resins, also known as adhesives (polyester, vinyl ester, modified acrylic acid, epoxy, phenolic and polyurethane), can combine reinforcing fibers in an orderly manner. In composites, fiber and fabric play a reinforcing role, while resin is the matrix material. The production process usually adopts molding. The structural properties of plastic composites mainly depend on the type of fiber used. Although glass fiber is the main component of many plastic composites, it can also be obtained from carbon fiber, aramid fiber or boron fiber. These raw materials provide stiffness and strength for composites, which can meet various application fields. In the past decade, plant fiber and wood fiber have also been widely used, especially in the construction of residential buildings. Although polyethylene, polyvinyl chloride (PVC) and polypropylene are the main polymers used in natural fiber composites, natural fibers can also be used in phenolic resin, polyester, polystyrene, polyurethane and other polymer matrix composites. At present, many plastic composite building products add natural fibers mainly from the epidermis of plants (such as wheat straw fibers, flax, jute, hibiscus, sisal, hemp, and coconut), with polyester or polypropylene as the matrix. Due to the moderate mechanical properties of natural fibers, they are usually unable to be used in high-performance applications, but this kind of fiber has light weight, good strength and stiffness and excellent bending stiffness. Another kind of natural fiber, wood, is mainly used in the comprehensive version of construction products, such as deck, door and window profiles, decorative decoration, railing and panel products. According to different application fields, these building composite products usually contain 30% - 70% wood fiber, and the most typical application is 50%. Regardless of the stock of lithium battery manufacturers' double 11 and double 12, the reinforcement materials used in wood plastic composites are usually wood chips or wood particles, rather than wood fibers commonly used in inorganic fiber composites. The commonly used fiber varieties are mainly pine, maple and oak. Some manufacturers use thermosetting resins to produce special composites with high wood content. For inorganic fiber composites, a small amount of other materials can be added to wood plastic composites (WPCs) to improve processing efficiency and performance. Additives may include coupling agents, light stabilizers, pigments, lubricants, fungicides, and foaming agents

composite materials are mainly used in floors, walls and roofs in the construction industry. Composite materials can also simulate bricks or stones for exterior wall decoration of buildings. Inside the building, composite materials can be used in shower rooms, bathtubs and sinks

polyurethane adhesives can be used to manufacture composite boards of various specifications, including particle board (OSB), hard fiberboard (HB), medium density fiberboard (MDF) and cardboard, particle board (PB), and plywood (LVL). It is usually used to give you the most sincere service as structural protection, floor and roof of residential buildings

wood plastic composites are usually used as outdoor floors, door frames, fences and other applications that need to meet the durability. If the correct manufacturing and installation procedures are adopted, wood plastic composite products rarely decay, crack, or warp under the most normal climatic conditions in the United States. Moreover, this kind of board is dirt resistant, waterproof, UV resistant, not easy to be eaten by insects, and has good load-bearing property. They also tend to have good dimensional stability and low specific expansion coefficient of hard plastic, which is better than the dimensional stability of wood. Wood fibers, sawdust, rice husks and organic fillers are commonly used in these applications

doors and windows

polyvinyl chloride (PVC) is often used in the field of doors and windows as a thermoplastic resin matrix (although other plastics also use this kind of raw material). The fiber used in this field is usually 80~200 grains of wood fiber, which produces wood filled polyvinyl chloride (PVC) products, which have good stability, moisture resistance and stiffness. In new external applications, vinyl and polyolefin (such as polyethylene and polypropylene) plastic resins and wood plastic composites made of wood chips have good corrosion resistance and weather resistance. At present, the plastic composites in the vestibule are mainly to the high-end (3) the development trend of placing the test piece at the center of the ball shaped support plate of the movable table of the experimental machine. Wood plastic composite atrium can provide a complete set of products that are almost maintenance free. Another commonly used sandwich structure is made of light sandwich material and composite laminate surface. The door is mainly made of glass fiber reinforced plastic (FRP) surface and polyurethane foam or expanded polystyrene (EPS) sandwich. At present, such products are mainly used in residential and commercial projects. These composite "sandwich" sandwich doors provide high specific strength and specific stiffness, light weight, good impact resistance, and uniform and smooth surface texture. Other considerations, such as sound insulation, heat resistance and vibration damping, determine the choice of core materials

note: the reprinted content is indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with its views or confirm the authenticity of its content