Quick curing processing technology for composite material

Abstract

The invention discloses a quick curing processing technology for a composite material. The technology comprises the following steps of: providing a rewinding shaft (2), and respectively covering a baffle plate frame (3) at each end of the rewinding shaft (2); rewinding a composite material film with a multi-layer structure by the rewinding shaft (2), wherein two ends of the composite material film are contacted with a concave-convex texture structure distributed at the inner side of each baffle plate frame (3) along the radial direction in the process of rewinding, and gaps are remained among film rewinding layers in a formed composite material film coil (1); and preferably, the method further comprises the following steps of: arranging a driving shaft (4) in an inserting manner into the composite material film coil (1), and rotating the driving shaft along the direction which is opposite to the rewinding direction of the composite material film, so that the gaps among the film rewinding layers in the composite material film coil can be enlarged. According to the technology, the composite material curing time can be greatly shortened, the production efficiency can be improved, and the very high curing rate can be achieved.

Description

technical field [0001] The invention relates to a preparation process of a composite material, in particular to a process for rapidly aging the composite material, and belongs to the technical field of new material processing. Background technique [0002] At present, common composite materials, especially composite materials with relatively high hardness, generally use different film materials as raw materials, and then form semi-finished products with two-layer or multi-layer structures through processes such as gluing, drying, and thermal lamination ( It can also be a composite material film), and these semi-finished products are usually in the form of film rolls. The curing reaction of the adhesive occurs at a certain temperature) for 6-7 days, so that the curing rate of the adhesive reaches more than 90%, at this time, the structural layers in the composite material can be bonded together normally. However, see figure 1 In the above-mentioned traditional process, exce...

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Problems solved by technology

However, see figure 1 In the above-mentioned traditional process, except for the outermost layer of semi-finished film 11 in the semi-finished film roll ((also can be a composite material film roll)), the surfaces of other semi-finished films 12 and 13 located in the inner layer are all affected by their outer circumference and inner ring. The extrusion of the semi-finished film at the end makes the film rolls very tightly pressed, which is not conducive to the volatilization of the solvent in the adhesive a in the composite material and the direct conduction of hot air, so it takes a very long curing time to cure. It is not conducive to efficient production, and the curing rate is often low, which affects product quality

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