Modified precipitated calcium carbonate for crosslinking fenugreek gum on surface through borax, as well as preparation method and application thereof, and paper

The invention provides modified precipitated calcium carbonate for crosslinking fenugreek gum on the surface through borax. Fenugreek gum is crosslinked on the surface of modified precipitated calcium carbonate through borax. The invention aims to provide modified precipitated calcium carbonate which can obviously increase the tensile index, the burst index, the tearing index and the filling one-way retention rate of paper when being applied to filling of the paper. Moreover, the invention further provides a preparation method and application of modified precipitated calcium carbonate; and furthermore, the invention further provides a piece of paper containing modified precipitated calcium carbonate.