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Size analysis of polymer latex powder. Comparison of results obtained by means of the I.C.I.–Joyce, Loebl disk centrifuge, the coulter counter, and the electron microscope
Author(s) -
Eckhoff R. K.
Publication year - 1967
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1967.070111004
Subject(s) - coulter counter , agglomerate , centrifuge , materials science , scanning electron microscope , microscope , electron microscope , analytical chemistry (journal) , polymer , composite material , chromatography , optics , chemistry , physics , microbiology and biotechnology , nuclear physics , biology
The volume frequency size distribution of PVC latex powder was determined by means of three different methods, which all gave the same frequency maximum at about 0.8–0.9 μ diameter. While the electron microscope analysis, which allows the agglomerates to be resolved into individual primary particles, did not show any particles above 1.5 μ in a sample of 9000, both the Coulter counter and the disk centrifuge showed a considerable amount of larger particles.