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      Active silica powder

      Lianyungang wohua new Mstar Technology Ltd active silica powder production supply is one kind of hydrophobic non-toxic, tasteless and non pollution (lipophilic) white powder with high purity, good temperature resistance, acid and alkali corrosion resistance, low thermal conductivity, high insulation, low thermal expansion and chemical stability, high hardness and excellent performance. In the use of polyolefin plastic, it will not reduce the value of MFR, good affinity, no water absorption, can make ordinary plastic products get better impact strength, stiffness, improve the cold resistance, heat resistance and other physical properties.

      The surface active silicon powder is modified by surface modifier (such as silane coupling agent) to modify the surface of silicon powder. Product specification 200--10000.

      Performance characteristics of active silica powder:

      1., the old material to achieve new material impact strength, new material to achieve special material impact strength; 

      2., in particular, polyolefin plastic in low temperature conditions, even more than the temperature of pure polyolefin plastic impact strength, to prevent products at low temperatures due to transport, loading and unloading, collision and careless fall, resulting in fracture losses. 

      3. toughening, increasing stiffness, decreasing freezing point temperature and increasing thermal deformation temperature of 10~15 degrees; 

      4., greatly reduce the cost of raw materials; 

      5. extend the service life of the product; 

      6. to improve wettability and affinity of silica fume in polymers and organic solvents; 

      7., the filling rate of silica powder is increased, and the dispersion in organic substance is enhanced; 

      8. significantly reduce the viscosity of the mixture system; 

      9., increase the density of the casting, improve the strength of the casting parts, meet the strict waterproof requirements of resin products and improve the water resistance of products; 

      10. to ensure that the whiteness of the modified product is not reduced and no knot has been obtained by special techniques.

      Application: electronic and electrical field of all kinds of sealing materials, casting material, packaging materials and plastic packaging materials, insulation filler, paint, rubber and plastic products such as the filler, artificial stone material; structural adhesive filler; epoxy resin filler.

      Main specifications and technical specifications:

      Project specification

      chemical composition()

      density

      g/cm3

      Mohs hardness

      Hydrophobicity

      min

      water

      SiO2

      Fe2O3

      Al2O3

      Ignition loss

      HG-325

      0.10

      99.50

      0.03

      0.12

      0.15

      2.65

      7

      30

      HG-400

      0.10

      99.50

      0.03

      0.12

      0.15

      2.65

      7

      30

      HG-600

      0.10

      99.50

      0.03

      0.12

      0.15

      2.65

      7

      30

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