bentonite for paper making

The bentonite for papermaking is made of high-quality raw bentonite through scientific processing. It has the advantages of fine particle size, high purity, good whiteness, good cation exchange ability, strong water absorption, expansibility, good suspension, and suitable pH range, etc. When swelling with water, its volume increases several times to 30 times, and its specific surface area increases to 700-800 m²/g

The microcrystalline surface of the main mineral montmorillonite has a negative charge, and the edge and end face of the montmorillonite have a positive charge. When used in combination with the cationic polymer, it can achieve excellent retention and filtration effect. In addition, it can also adsorbate the resin to control the adhesive, etc