漂珠   
  漂珠是一种含有空心微珠，重量很轻，容重为720kg/m 3   （重质），418.8kg/m 3 (  轻质)  粒径约0.1  毫米，可以漂浮在水面上，所以称之为漂珠。漂珠的化学成份以二氧化硅和三氧化二铝为主，具有颗粒细、中空、质轻、高强、耐磨、耐高温、保温绝缘、绝缘阻燃等多种功能，现已广泛应用于耐火材料原料之一。  
   
 
     
         
             
              漂珠化学成份  
             
         
         
             
               
             
             
                 
                     
                         
                          组分  
                         
                         
                          氧化硅   
                        SiO 2    
                         
                         
                          氧化铝   
                        Al 2 O 3   
                         
                         
                          氧化铁   
                        Fe 2 O 3    
                         
                         
                          氧化镁   
                        MgO   
                         
                         
                          氧化钙   
                        CaO   
                         
                         
                          三氧   
                          化硫    
                        SO 3   
                         
                         
                          二氧   
                          化钛   
                          TiO 2    
                         
                         
                          氧化钠   
                          Na 2 O  
                         
                         
                          氧化钾   
                          K 2 O   
                         
                     
                     
                         
                          含量  (％)  
                         
                         
                          55.88  
                         
                         
                          32.7  
                         
                         
                          4.19  
                         
                         
                          1.27  
                         
                         
                          2.0  
                         
                         
                          3.04  
                         
                         
                          0.68  
                         
                         
                          0.06  
                         
                         
                          0.18  
                         
                     
                 
             
             
             
         
     
 
   
   
  漂珠的主要物理性质：  
 
 
     
         
             
              直径  
             
             
              堆积密度  
             
             
              比重  
             
             
              抗压强度  
             
             
              导热系数  
             
             
              比电阻  
             
             
              熔点  
             
             
              形状  
             
             
              颜色  
             
             
              水分  
             
         
         
             
              (μm)   
             
             
              （  g/cm 3   ）  
             
             
               
             
             
              （  kg/cm 2   ）  
             
             
              （  kcal/m.h. ℃ ）  
             
             
              （  Ωcm 2   ）  
             
             
              （℃）  
             
             
               
             
             
               
             
             
              ％   
             
         
         
             
              20-400  
             
             
              0.26-0.45  
             
             
              0.4-0.8  
             
             
              100-350  
             
             
              0.05-0.1  
             
             
              10¹¹-10¹³     
             
             
              约  1450     
             
             
              球形      
             
             
              灰白色   
             
             
              ≤  1     
             
         
     
 
 
   
 
     
         
             
             产品特点: 
              1.   流动性好：漂珠为直径  20-400  微米的中空圆形微珠，球形率  >95％  ，增加被填充物的流动性，使被填充物更加易于加工。  
              2.   低密度：漂珠的密度是  0.4 (g/cm 3 ),  与大部分地面矿物和树脂相比，漂珠的重量约减轻  30-85％  。  
              3.   低收缩率：漂珠是填料领域内少数几种可以达到低收缩率的材料之一。在大面积填充中，漂珠可以减少其收缩率。  
             应用领域: 
              1.   涂料、油漆：油漆油墨，如粘合剂、隐身涂料、绝缘漆、防腐漆、耐高温防火油漆、建筑内外墙漆、汽车腻子、地板漆、原子灰等。  
              2.   玻璃钢制品：各种玻璃钢制品、船舶。  
              3.   改性橡胶：各种工业和民用橡胶制品，如地板胶、电线电缆、各类电气开关等绝缘材料、军用民用鞋底、轮胎、传送带、垫圈、密封条等。  
              4.   工程塑料：  PP  、  PA  、  PE  、  PBT  、  POM  等改性工程塑料母粒及其制品，如汽车饰件、仪表板、结构件、管材等。