| abstract |
The present invention provides an aqueous surface-treating agent and method for surface treatment of reinforcing material, which includes a carbodiimide compound as a main component; a reinforcing material surface-treated with the above aqueous surface-treating agent; and a composite material comprising a matrix and the above reinforcing material. The aqueous surface-treating agent has good storage stability, gives no bad effect on human health owing to no use of organic solvent and, when used for the surface treatment of a reinforcing material, can produce a surface-treated reinforcing material which can produce a composite material comprising a matrix and the surface-treated reinforcing material and having high adhesivity between the two components. |