Radici Compounds AC90MC25L    
    
乙缩醛（POM）共聚物    
    
Radici Plastics USA, Inc.   
     
 Technical Data    
     

产品说明

AC90MC25L is an acetal copolymer reinforced with 25% mineral, coupled to achieve optimum adhesion at the mineral/polymer interface. This results in improved rigidity, maintained even at higher temperatures, combined with good practical toughness. Although parts molded from acetal copolymer are recognized for exhibiting excellent dimensional stability, incorporation of mineral further improves stability over a broad temperature range. Further, due to the almost isotropic shrinkage characteristics, this compound exhibits very low warpage.

Acetal copolymer is a highly crystalline engineering thermoplastic based on trioxane, polymerized with a comonomer to provide exceptional thermal stability both in processing and for molded parts which may be exposed to high temperature environments.

Typical of acetal copolymer, AC90MC25L exhibits excellent friction and wear characteristics, resistance to the effects of a broad range of chemicals, oils, solvents and greases, and very low moisture absorption.

AC90MC25L should be considered for applications where the fundamental benefits of using acetal are required, combined with improved rigidity, especially at higher temperature, dimensional stability, and minimum warpage, especially in large area or complex shape parts.

总体

 材料状态 • 已商用：当前有效   
 资料 1 •  Technical Datasheet (English)
  
 Search for UL Yellow Card •  Radici Plastics USA, Inc.
  
 供货地区 • 北美洲   
 填料/增强材料 • 矿物填料, 25% 填料按重量   
  • 尺寸稳定性良好 • 耐磨损性良好 • 韧性良好 
  • 低翘曲性 • 耐油性能  
 性能特点   • 吸潮性差 
  • 抗溶解性 • 耐油脂性能  
    • 中等硬度 
  • 耐化学性良好 • 热稳定性，良好  
     
     
 物理性能  额定值单位制 测试方法 
 比重  1.60g/cm³ ASTM D792 
 收缩率   ASTM D955 
 流动: 3.18 mm  1.4%  
 横向流动: 3.18 mm  1.2%  
 吸水率 (24 hr)  0.27% ASTM D570 
 机械性能  额定值单位制 测试方法 
 抗张强度 (断裂)  57.2MPa ASTM D638 
 伸长率 (断裂)  10 到 20% ASTM D638 
 弯曲模量  4830MPa ASTM D790 
 弯曲强度  89.6MPa ASTM D790 
 冲击性能  额定值单位制 测试方法 
 悬壁梁缺口冲击强度 (3.18 mm)  53 到 64J/m ASTM D256 
 热性能  额定值单位制 测试方法 
 热变形温度 (1.8 MPa, 未退火)  96.1°C ASTM D648 
 熔融温度  165°C ASTM D789 
     
 注射  额定值单位制  
 干燥温度  76.7 到 87.8°C  
 干燥时间  1.0 到 2.0hr  
 建议注入量  40 到 70%  
 螺筒后部温度  204°C  
 螺筒中部温度  204°C  
 螺筒前部温度  204°C  
 加工（熔体）温度  188 到 227°C  
 模具温度  82.2 到 104°C  
 背压  0.345MPa  
 螺杆转速  40 到 80rpm  
 
Radici Compounds AC90MC25L     
乙缩醛（POM）共聚物     
     
Radici Plastics USA, Inc.  
     
  注射 额定值单位制 
    
  垫层 3.18 到 6.35mm 

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