Silica Powder

产品描述PRODUCTION DESCRIPTION：

Silica powder or Quartz, is also purified from siliCarenite or sand stone. It is widely used as an inorganic friction raw material filler. Silica powder improves the friction products’ wear resistance, as well as the friction coefficient. Silica is a high Mohs scale of hardness filler, it need to be grinded into very small particles, usually up to 200 mesh or even 325 mesh. Otherwise its hardness will scratch the mating plates and generate great brake noise.

颗粒度GRANULARITY（筛网分析 SIEVE ANALYSIS，颗粒大小PARTICLE SIZE）

筛网孔大小Sieve size(μm/mm)：      0.045-0.106mm

目数Mesh：          150-325

检测值Detection value（%）：      98.5%

外观 APPEARANCE

形状Shape：          Powder

颜色Color：          White

 物理性质 PHYSICAL PROPERTIES

比重 Specific gravity（g/cc） 2.65-2.70

吸油量 Oil absorption（%） 22

含水量 Moisture Rate（%） ≤0.05%

莫氏硬度 Hardness(Mohs) 7.0-7.5

PH            6.5-7.0

白度Brightness(90-100) 92

烧失量Loss of Ignition（LOI, %） 0.18-0.2

 化学成分 CHEMICAL COMPOSITION

 包装 PACKAGE

1. 25KG/bag, double sheet paper bags with plastic bag.

2. Opened bags must be carefully resealed and kept upright to prevent leakage. Stored in original packages in a dry, cool and well ventilated areas to prevent from direct sunlight.

3. Use appropriate to avoid environment contamination.