A kind of method of alcohol amine solution graft modification carbon fiber surface sizing agent
A technology of solution grafting and alcohol amines, applied in the direction of carbon fiber, fiber treatment, fiber type, etc., can solve the problem of low interface bonding strength, achieve the effect of improving mechanical properties, improving mechanical properties, and simple and easy methods
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specific Embodiment approach 1
[0021] Embodiment 1: This embodiment is a method for grafting a modified carbon fiber surface sizing agent with an alcohol amine solution, specifically as follows:
[0022] 1. Configure the modifier solution: dissolve the modifier in a solvent to obtain a modifier solution; the mass concentration of the modifier solution is 0.5% to 5.0%; the modifier is Alcoholamine organic small molecules containing both amino groups and unsaturated double bonds;
[0023] 2. Carbon fiber surface modification: adjust the modifier solution prepared in step 1 to 50°C to 100°C, use the modifier solution at 50°C to 100°C to modify the surface of the carbon fiber, and rinse the surface treated carbon fiber with water. Dry at a temperature of 50°C to 100°C for 0.5h to 6h to obtain carbon fibers modified by chemical grafting of surface sizing agents; the carbon fibers are unidirectional carbon fibers with epoxy type sizing agents, with epoxy type Carbon fiber woven cloth with sizing, fiber mat with ...
specific Embodiment approach 2
[0025] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the molecular structure described in step 1 contains both an amino group and an unsaturated double bond. The organic small molecule of alcohol amine is 4-amino-2-butene -1-ol and 1-amino-3-buten-2-ol or a mixture of both. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0026] Embodiment 3: This embodiment is different from Embodiment 1 in that: the solvent in step 1 is water or an organic solvent. Others are the same as in the first embodiment.
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