Glass fiber tape, and surface modification method and application thereof

A surface modification method of a glass fiber tape, comprising:

• (S1) detecting an initial surface carbon content C0 of the glass fiber tape;
• selecting heating temperature and heating time as factors of decarburization;
• designing five levels for the heating temperature, respectively 400° C., 450° C., 500° C., 550° C. and 600° C., and designing three levels for the heating time, respectively 2 h, 3 h and 4 h;
• designing an orthogonal test based on the five levels for the heating temperature and the three levels for the heating time;
• subjecting the glass fiber tape to decarburization under different combinations of the heating temperature and the heating time;
• and after the decarburization, detecting a residual surface carbon content C1 of the glass fiber tape, and calculating a surface carbon content decline rate N of the glass fiber tape according to the following formula:
• N(%)=(C0−C1)/C0×100%;
• wherein an optimal decarburizing condition is determined when the surface carbon content decline rate N is more than 70%;
• (S2) subjecting the glass fiber tape to decarburization under the optimal decarburizing condition determined in step (S1);
• and
• (S3) immersing a decarburized glass fiber tape in a palmitic acid solution for 1-3 h, followed by drying.