Purity white bentonite powder for paper making
Papermaking additives
1.Introduction
High whiteness of bentonite (montmorillonite) used to paper is a modification of the use of advanced refining process and is an excellent paper-making chemicals, its high whiteness, purity, ultra-fine powder, a good water-swelling properties, cation exchange capacity, for acid or alkaline paper-making environment, can replace or partially replace titanium dioxide, silica, kaolin, and so on.
2.Specification:
INDEX | Super PMB-RA |
Particle size 325 mesh pass rate ( %,≥ ) | 100 |
Moisture ( %,≤ ) | 13 |
Whiteness ( ISO,≥ ) | 60 |
Bulk density ( g/cm3,≤ ) | 0.5 |
Cation-exchange volume ( mmol/100g±,≥ ) | 35 |
Sieve residue (wet sieve 325 mesh,%, ≤) | 0.10 |
PH | 9-11 |
Viscosity ,apm.s | 15 |
swelling ratio of clays ,ml/2g | 28 |