HTR-628 是采用氧化锆、氧化铝进行复合无机包膜,用特殊有机处理剂进行表面改性,具有白度优良、易分散、同时具有亲水和亲油功能,适用于大多数的应用领域,是一种多功能、通用型的金红石型钛白粉;可广泛应用于涂料、塑料、油墨、造纸等领域。
Index | Technical specifications | |||
Inorganic surface treatment | AL2O3,ZrO2 | |||
Organic surface treatment | Yes | |||
TiO2 content % (m/m) | ≥ | 93 | ||
Brightness % | ≥ | 94.5 | ||
Tint reducing power, Ryenolds number, TCS ≥ | 1900 | |||
Volatile matters at 105 ℃, %(g/100g) ≤ | 0.5 | |||
Water soluble matters, % | ≤ | 0.5 | ||
pH value of water suspension | 6.5~8.5 | |||
Oil absorption value, % (m/m) ≤ | 20 | |||
Electrical resistance of aqueous extract, Ωm ≥ | 80 | |||
Residue on sieve (45 um mesh), % (m/m ) ≤ | 0.02 | |||
Rutile content, % | ≥ | 98.0 | ||
Whiteness, (compared with standard sample) | No less than | |||
Oil dispersible power (Hegemann nukber), ≥ | 6.0 | |||
Index controlled by the company | Gardner of dry powder | L | ≥ | 100.0 |
b | ≤ | 1.80 | ||
Dispersibility underhigh-speed stirring | μm | ≤ | (Typical application under certain indigents) |