Effect of exterior coating on the mechanical property of continuous basalt fiber

Exterior size coatings for basalt fiber are researched, and the study clear proves that the component of exterior coatings have important impact on the mechanical property of continuous basalt fiber. The ingredients and structure of film former has directly effect on the focus of continuous basalt fiber and the compatibility between fibers and epoxy resin matrix, and there are considerable difference in the breaking and tensile strength of basalt fibers when film former with different ingredients and structure. The introduction of cation additive to coating is beneficial to raising the focus and breaking strength of basalt fibers. The breaking strength and tensile strength of basalt fiber reach 0.62N/tex and 2400MPa respectively through optimization of size coating, and this result is higher than the technological level of existing products.