Celcon® M50
乙缩醛（POM）共聚物
Ticona

产品说明

Celcon® M50 is a extrusion and injection molding grade with an intermediate viscosity for good processability with higher toughness than general purpose grades.

Chemical abbreviation according to ISO 1043-1: POM    
总体     
材料状态 • 已商用：当前有效    
供货地区 • 北美洲 • 拉丁美洲  • 南美洲 
性能特点 • 可加工性，良好 • 韧性良好  • 中等粘性 
RoHS 合规性 • 联系制造商    
形式 • 颗粒料    
加工方法 • 薄膜挤出 • 挤出  • 注射成型 
树脂ID (ISO 1043) • POM    
     
物理性能  额定值单位制  测试方法 
比重  1.41g/cm³  ASTM D792 
    ISO 1183 
     
溶化体积流率（MVR） (190°C/2.16 kg)  4.30cm³/10min ISO 1133 
收缩率    ASTM D955 
流动  2.2%   
横向流动  1.8%   
吸水率    ISO 62 
饱和, 23°C  0.75%   
平衡, 23°C, 50% RH  0.20%   
机械性能  额定值单位制  测试方法 
拉伸模量  2500MPa  ISO 527-2/1A/1 
抗张强度     
屈服, -40°C  94.5MPa  ASTM D638 
屈服, 23°C  60.7MPa  ASTM D638 
屈服, 71°C  34.5MPa  ASTM D638 
屈服  63.0MPa  ISO 527-2/1A/50 
拉伸应变 (屈服)  12%  ISO 527-2/1A/50 
弯曲模量     
23°C  2590MPa  ASTM D790 
71°C  1240MPa  ASTM D790 
104°C  689MPa  ASTM D790 
23°C  2400MPa  ISO 178 
冲击性能  额定值单位制  测试方法 
简支梁缺口冲击强度 (23°C)  8.5kJ/m²  ISO 179/1eA 
悬壁梁缺口冲击强度     
-40°C  59J/m  ASTM D256 
23°C  75J/m  ASTM D256 
23°C  7.5kJ/m²  ISO 180/1A 
热性能  额定值单位制  测试方法 
热变形温度     
1.8 MPa, 未退火  110°C  ASTM D648 
1.8 MPa, 未退火  97.0°C  ISO 75-2/A 
维卡软化温度  161°C  ISO 306/B50 
熔融温度 2  165°C  ISO 11357-3 
线形膨胀系数    ISO 11359-2 
流动  0.00010cm/cm/°C  
横向  0.00010cm/cm/°C  
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Celcon® M50 2012年10月14日
乙缩醛（POM）共聚物 
Ticona 
注射 额定值单位制
加工（熔体）温度 182 到 199°C
模具温度 82.0 到 93.0°C
注射说明 

Standard reciprocating screw injection molding machines with a high compression screw (minimum 3:1 and preferably 4:1) and low back pressure (0.35 Mpa/50 PSI) are favored. Using a low compression screw (I.E. general purpose 2:1 compression ratio) can result in unmelted particles and poor melt homogeneity. Using a high back pressure to make up for a low compression ratio may lead to excessive shear heating and deterioration of the material.

Melt Temperature: Preferred range 182-199 C (360-390 F). Melt temperature should never exceed 230 C (450 F).

Mold Surface Temperature: Preferred range 82-93 C (180-200 F) especially with wall thickness less than 1.5 mm (0.060 in.). May require mold
temperature as high as 120 C (250 F) to reproduce mold surface or to assure minimal molded in stress. Wall thickness greater than 3mm (1/8 in.)
may use a cooler (65 C/150 F) mold surface temperature and wall thickness over 6mm (1/4 in.) may use a cold mold surface down to 25 C (80 F).
In general, mold surface temperatures lower than 82 C (180 F) may hinder weld line formation and produce a hazy surface or a surface with flow
lines, pits and other included defects that can hinder part performance. 
挤出 额定值单位制
熔体温度 160 到 220°C
挤压说明 

Standard extruders with a length to diameter ratio of at least 20:1 are recommended. The screw should be a high compression ratio of at least 3:1 and preferably 4:1 to assure good melting and melt homogeneity. The design should be approximately 35% each for feed and metering sections with the remaining 30% as the transition zone.

Melt temperature: 160 to 220°C (320 to 430°F)

备注
1 一般属性：这些不能被视为规格。

2 10°C/min