Celcon® UV140LG
乙缩醛（POM）共聚物

Ticona

产品说明

Celcon® acetal copolymer grade UV140LG is a specialty grade of acetal copolymer formulated to provide good flow with a low gloss finish and a UV stability necessary for interior automotive applications.

总体    
材料状态 • 已商用：当前有效   
供货地区 • 北美洲 • 南美洲  
 • 拉丁美洲 • 亚太地区  
    
添加剂 • 紫外线稳定剂   
性能特点 • 共聚物 • 抗紫外线性能良好  
 • 光泽，低 • 良好的流动性  
    
用途 • 汽车内部零件   
RoHS 合规性 • 联系制造商   
形式 • 颗粒料   
加工方法 • 注射成型   
多点数据 • Isothermal Stress vs. Strain (ISO 11403-1)  
    
物理性能  额定值单位制 测试方法 
密度  1.33g/cm³ ISO 1183 
溶化体积流率（MVR） (190°C/2.16 kg)  13.0cm³/10min ISO 1133 
收缩率   ISO 294-4 
横向流量  1.5%  
流量  1.6%  
机械性能  额定值单位制 测试方法 
拉伸模量  1950MPa ISO 527-2/1A/1 
拉伸应力 (屈服)  41.0MPa ISO 527-2/1A/50 
拉伸应变 (屈服)  10% ISO 527-2/1A/50 
断张率  11% ISO 527-2/1A/50 
拉伸蠕变模量   ISO 899-1 
1 hr  1300MPa  
1000 hr  650MPa  
弯曲模量 (23°C)  1900MPa 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)  3.1kJ/m² ISO 179/1eA 
悬壁梁缺口冲击强度 (23°C)  4.0kJ/m² ISO 180/1A 
热性能  额定值单位制 测试方法 
热变形温度    
0.45 MPa, 未退火  138°C ISO 75-2/B 
1.8 MPa, 未退火  80.0°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  0.00013cm/cm/°C  
横向  0.00013cm/cm/°C  
    
注射  额定值单位制  
加工（熔体）温度  180 到 195°C  
模具温度  80.0 到 105°C  
注射速度  慢  
 
Celcon® UV140LG 2012年10月5日
乙缩醛（POM）共聚物

Ticona

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.

Use a slow injection speed until material passes through the gate.

Melt Temperature: Preferred range 180-195 C (~356-~383 F). Melt temperature should never exceed 230 C (450 F).

Mold Surface Temperature: Preferred range 80-105 C 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. In general, mold surface temperatures lower than 82 C (180 F) may produce a hazy surface or a surface with flow lines, pits and other included defects.

备注
1 一般属性：这些不能被视为规格。

2 10°C/min