1.性能特点:硅灰石具有针状、纤维状晶体形态及较高的白度和独特的物理化学性能,可取代或部分取代玻璃纤维作为聚合物复合材料的增强体,提高材料性能,降低生产成本,起增重和增强补强作用。Characteristics:thewollastonitehasacicular,fibrouscrystalformandhighwhiteness,uniquephysicalandchemicalproperties,andcanreplaceorpartlyreplaceglassfiberasthereinforcedpolymercompositematerial,whichcanimprovethematerialperformance,reduceproductioncost,gainweightandenhancereinforcingeffect.2.应用领域:广泛应用于复合材料(电子元件、封装材料、高性能橡胶制品。汽车壳体、模具)、陶瓷、油漆、涂料、塑料、橡胶、化工、造纸、电焊条、冶金保护渣以及作为石棉代用品等领域。Applicationfields:widelyusedincompositematerial(electroniccomponents,packagingmaterials,highperformancerubberproducts.Motorshell,mold),ceramics,paint,coatings,plastics,rubber,chemicalindustry,papermaking,weldingelectrodeasasbestossubstitute,metallurgicalpowderandetc.3.系数指标规格测定项目325M400M800M1250M2000M2500M3000MSiO2二氧化硅%≥494949.849.849.849.849.8CaO氧化钙%≥474747.247.247.247.247.2Fe2O3三氧化二铁%≤0.200.200.200.200.200.200.20MgO氧化镁%≤0.250.250.250.250.250.250.25PHValuePH值7-97-97-97-97-97-97-9Whiteness白度%≥90909292929292TrueSpecificGravity真比重(t/m3)2.82.82.82.82.82.82.8PostulateSpecificGravity假比重(t/m3)0.6-1.40.6-1.40.6-1.40.6-1.40.6-1.40.6-1.40.6-1.4Moh'sHardness莫氏硬度4.5-5.54.5-5.54.5-5.54.5-5.54.5-5.54.5-5.54.5-5.5RefractionCoefficient折光系数1.631.631.631.631.631.631.63MeltingPoint熔点℃1540154015401540154015401540Density密度2.752.752.752.752.752.752.75CoefficientofThermalExpansion热膨胀系数6.5*10-66.5*10-66.5*10-66.5*10-66.5*10-66.5*10-66.5*10-6ParticleSize粒径93(μm)≤20161075Appearance外观白色粉末白色粉末白色粉末白色粉末白色粉末注:可以按照客户的需求生产不同白度、纯度、细度的硅灰石粉。