Nano calcium carbonate for rubber 
 SPXJ series of nano and submicron calcium carbonate, and rubber has good compatibility, mainly for the preparation of the tire, hose, belt, oil seals and automotive parts and other rubber products. 
 SPXJ series of products can be used for NR, BR, SBR and other rubber system, the rubber and easy mixing, easy to spread, mix soft, and increase processing performance and the pressure of the flow model; the rubber surface is smooth, elongation, high tensile strength, permanent deformation, resistance to bending performance, tear-resistant high strength alternative to replace or most of the carbon black and white carbon black, rubber products for the light to provide an excellent reinforcement materials. 


 Item Index SPXJ-1 SPXJ-2 
 The average time size (nm) 60-90 100-300 
 Calcium carbonate content (%)> 98> 98 
 Oil Absorption (gDOP/100gCaCO 3) <27 <27 
 Specific surface area (m 2 / g) 23 ± 4 11 ± 4 
 Cubic cubic shape, prism 
 Hydrochloric acid insoluble (%) <0.1 <0.1 
 Moisture (%) <0.3 <0.3 
 Treatment agent for rubber processing agents 
 Calcite calcite crystal 
 PH (pH) 8.5 - 10 8.5 - 10 
 Whiteness (%)> 97> 97