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The function of lubricants in processing of rigid poly(vinyl chloride)
Author(s) -
Bower J. David
Publication year - 1986
Publication title -
journal of vinyl technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 0193-7197
DOI - 10.1002/vnl.730080410
Subject(s) - lubricant , lubrication , materials science , fusion , function (biology) , absorption (acoustics) , process (computing) , composite material , vinyl chloride , chemical engineering , polymer , computer science , copolymer , engineering , philosophy , linguistics , evolutionary biology , biology , operating system
In this review of lubricants and how they function the lubrication mechanism is broken down into three stages: the heat absorption (onset of gelation), gelation (fusion process), and melt flow (postfusion) stages. The terms “internal” and “external” are used to describe the functionality of the lubricant at each stage. It is pointed out that these terms should not be used to label lubricants themselves, because most lubricants perform differently at each stage of processing. How the chemical and physical properties of various types of lubricants perform in each of the fusion stages is also discussed.