Carbon fiber composite board and digital forming method of complicated curved surface thereof
A composite sheet and complex curved surface technology, applied in chemical instruments and methods, synthetic resin layered products, paper/cardboard layered products, etc., can solve the problem of high cost of molds, inability to change and transform patterns and shapes, and poor replaceability and other problems, to achieve the effect of forming various shapes, realizing large-scale industrial production, and improving production efficiency
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Embodiment 1
[0033] The carbon fiber composite plate preparation method: the carbon fiber braided layer 1 is included, and the upper and lower ends of the carbon fiber braided layer 1 are successively laid with an epoxy resin layer 2, a fireproof layer 3, and a protective film 4 (see figure 1 );
[0034] (a) Carbon fiber weaving layer 1: the carbon fiber is wired and woven into a carbon fiber cloth, and the front end of the carbon fiber cloth is pulled into a hot-melt dipping machine;
[0035] (b) Preparation of resin base material: Mix curing agent, epoxy resin, release agent and filler according to mass ratio of 48%, 48%, 2%, 2% and stir for 30 minutes, then pour the mixture into the groove;
[0036] (c) Send the resin base material into a hot-melt dipping machine, perform hot-press impregnation with carbon fiber cloth at 220°C, and cure at 100°C for 3 hours to prepare a carbon fiber prepreg;
[0037] (d) The upper layer of the epoxy resin layer 2 is brushed with a silicone-based flame...
Embodiment 2
[0044] Carbon fiber composite sheet preparation method: including a carbon fiber braided layer 1, and the upper and lower ends of the carbon fiber braided layer 1 are sequentially laid with an epoxy resin layer 2, a fireproof layer 3, and a protective film 4;
[0045] (a) Carbon fiber weaving layer 1: the carbon fiber is wired and woven into a carbon fiber cloth, and the front end of the carbon fiber cloth is pulled into a hot-melt dipping machine;
[0046] (b) Preparation of resin base material: Mix curing agent, epoxy resin, mold release agent and filler according to the mass ratio of 30%, 30%, 20%, 20% and stir for 30 minutes, then pour the mixture into the groove;
[0047] (c) Send the resin base material into a hot-melt dipping machine, perform hot-press impregnation with carbon fiber cloth at 180°C, keep it at 90°C for 4 hours, and solidify to prepare a carbon fiber prepreg;
[0048] (d) The upper layer of the epoxy resin layer 2 is brushed with a silicone-based flame r...
Embodiment 3
[0055] Carbon fiber composite sheet preparation method: including a carbon fiber braided layer 1, and the upper and lower ends of the carbon fiber braided layer 1 are sequentially laid with an epoxy resin layer 2, a fireproof layer 3, and a protective film 4;
[0056] (a) Carbon fiber weaving layer 1: the carbon fiber is wired and woven into a carbon fiber cloth, and the front end of the carbon fiber cloth is pulled into a hot-melt dipping machine;
[0057] (b) Preparation of resin base material: Mix curing agent, epoxy resin, release agent and filler according to mass ratio of 40%, 45%, 5%, 10% and stir for 30 minutes, then pour the mixture into the groove;
[0058] (c) Send the resin base material into a hot-melt dipping machine, perform hot-press impregnation with carbon fiber cloth at 200°C, heat it at 120°C for 2 hours, and solidify to prepare a carbon fiber prepreg;
[0059] (d) The upper layer of the epoxy resin layer 2 is brushed with a silicone-based flame retardant ...
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