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  4. SUNBLACK (for coloring) physicochemical properties of main products

Physicochemical properties of main products

Description By grade HCF (High Colour Furnace) MCF (Medium Colour Furnace)
  Pellets - SB960 - SB320 SB710 SB720 - -
Test items Powder SB935 - SB305 - - SB725 SB735 SB805
Average particle size (nm) 13 14 18 20 23 20 23 15
Surface area (m2/g) 315 275 150 117 111 136 93 209
Tinting strength (%) 140 150 130 115 123 140 117 150
DBP absorption number (ml/100g) Pellets - 60 - 111 72 57 - -
Powder 70 - 136 - - 61 53 58
Volatile content (%) 1.5 1.5 1.3 1.3 1.3 1.5 1.5 1.5
pH (-) 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5
PVC Color deepness 151 147 115 111 111 121 105 146
Color lightness 91 107 103 103 104 105 103 106
Description By grade RCF (Regular Colour Furnace) LFF (Long Flow Furnace)
  Pellets SB200 - SB250 SB280 - - - -
Test items Powder - SB235 - SB285 SB335 SB605 SB625 SBX15
Average particle size(nm) 26 78 66 26 31 25 34 20
Surface area (m2/g) 77 21 24 77 70 84 53 117
Tinting strength (%) 100 41 48 100 100 110 92 118
DBP absorption number (ml/100g) Pellets 101 - 87 102 - - -
Powder - 51 - 113 112 77 69 96
Volatile content (%) 1.3 0.7 0.7 1.3 1.3 1.2 1.3 2.1
pH (-) 7.5 7.5 7.5 7.5 7.5 7.5 7.5 3.5
PVC Color deepness 100 89 96 100 100 104 93 112
Color lightness 100 83 87 100 100 104 98 104
Description By grade LFF (Long Flow Furnace)
  Pellets - - -
Test items Powder SBX25 SBX45 SBX55
Average particle size(nm) 22 22 25
Surface area (m2/g) 115 120 84
Tinting strength (%) 131 137 110
DBP absorption number (ml/100g) Pellets - - -
Powder 68 53 77
Volatile content (%) 3.2 3.1 2.0
pH (-) 3.0 3.0 3.0
PVC Color deepness 122 134 105
Color lightness 105 106 104
  • SUNBLACK 200 appears as index 100
  • SB is the abbreviation for "SUNBLACK"