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Page Last Updated: 1/9/2003
 

均一聚合物尺寸标准,2000系列,540um
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该系列微粒是1971年第一组生产线之一生产的产品。它们仍旧拥有一些新特征,并且比新的更均一的产品便宜。它们由NIST跟踪尺寸来标定。

微粒的尺寸分布适合以下测量方法,这些方法需要粒子尺寸均一介于单分散(高度均一,<5%,Cv)与多分散(较宽分布,<12%,Cv)。测量仪器包括光阻碍、光分散、声学成像、电荷位移或其它用于分析较宽尺寸材料的方法。

材料本身由聚苯乙烯交联二乙烯苯组成。这样就使得粒子具有良好的耐用性和化学稳定性,可以用水-醇混合液清洗并重新分散到水、空气或其它相似介质中。聚苯乙烯的密度是1.05g/cm3,折光系数为1.59(589nm,25℃)。该系列微粒用15ml渐滴型小瓶包装为水性悬浊液。

*NIST - National Institute of Standards and Technology
**CV - is the standard deviation of the mean diameter expressed as a percentage of the mean diameter.

MSDS (PDF)      Product Bulletin (PDF)

Catalog Number
15 mL
Replaces Catalog # Nominal Diameter Certified Mean Diameter Size Distribution
Std. Dev & CV
Solids Content
Aqueous Suspensions - Calibrated by Optical Microscopy & Electrolyte Displacement
2005A 240 5µm 5.0µm ?0.3µm 0.6µm (12%) 0.8%
2006A 122 6µm 6.1µm ?0.3µm 0.6µm (9.8%) 1.5%
2007A 252 7µm 7.0µm ?0.2µm 0.4µm (5.7%) 1.9%
2008A 253 8µm 8.0µm ?0.2µm 0.4µm (5.6%) 0.7%
2009A 137 9µm 8.9µm ?0.3µm 0.8µm (9.0%) 0.8%
2010A 117 10µm 10.1µm ?0.3µm 0.9µm (8.9%) 1.1%
2011A 118 11µm 11.0µm ?0.3µm 1.1µm (10%) 1.0%
2014A 119 14µm 14.1µm ?0.4µm 1.2µm (8.5%) 1.3%
2015A 241 15µm 14.6µm ?0.4µm 1.1µm (7.5%) 0.8%
2020A 120 20µm 20.9µm ?0.6µm 1.4µm (6.7%) 1.3%
2025A 362 25µm 26.2µm ?1.0µm 2.3µm (8.8%) 1.2%
2030A 242 30µm 31.1µm ?0.6µm 1.9µm (6.1%) 1.4%
2040A 243 40µm 39.6µm ?0.8µm 3.6µm (9.1%) 1.4%
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Sunday, May 30, 2004     >> ENGLISH VERSION  
 
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