Explanation

composite materials based on thermosetting resin. This composite materials accounts for the vast majority of continuous fiber reinforced resin based composite materials. The thermotropic resin can flow before crosslinking and has low viscosity. After intermediation, insoluble and unmelted body structure is formed, and curing agent is usually required to be added during curing - according to the difference of curing agent, it can be intermediated at room temperature or heated for assimilation. The main varieties of thermosetting resin include: phenolic resin, amino resin, epoxy resin, unsaturated polyester resin, silicone resin and bismaleimide resin, cyanate ester resin and thermosetting polyimide resin. This kind of composite materials has good molding technology and is suitable for various molding methods, such as hot pressing (vacuum bag, molding, autoclave) molding, automatic placement molding, filament winding, pultrusion process, liquid molding, hand lay-up molding, spray molding, etc. resin matrix has good wettability and adhesion to reinforcement. Such composite materials generally have high strength, modulus and excellent heat resistance, fatigue resistance, creep resistance, corrosion resistance, damp heat resistance and other properties. "As a structural materials, it can also be used as a functional materials, and is widely used in aerospace, machinery manufacturing, transportation, chemical industry, electronics/electrical, architecture, energy and other T industry fields. Take carbon fiber reinforced thermal resin based composite materials as an example. Because of its light weight and high strength, its use as an aircraft structure highlights the advantages of reducing structural weight, improving structural efficiency, improving structural reliability, and extending structural life The advantage of inch comparison is that its usage in advanced civil aircraft structures has reached 50%.

Classification