Study of fusion percolation thresholds of rigid PVC compounds

Rigid poly(vinyl chloride) (PVC), PVC/chlorinated polyethylene (CPE), and PVC/CPE/oxidized polyethylene (OPE) compounds were prepared in a Haake torque rheometer. The fusion percolation thresholds (FPTs) of these compounds were defined and compared. Moreover, the fusion curves of these compounds wer...

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Bibliographic Details
Published inJournal of applied polymer science Vol. 81; no. 12; pp. 3022 - 3029
Main Authors Chen, Cheng-Ho, Mao, Ching-Feng, Lo, Yu-Wen
Format Journal Article
LanguageEnglish
Published New York John Wiley & Sons, Inc 19.09.2001
Wiley
Subjects
Applied sciences
chlorinated polyethylene (CPE)
Exact sciences and technology
fusion percolation threshold
fusion time
Organic polymers
oxidized polyethylene (OPE)
Physicochemistry of polymers
poly(vinyl chloride) (PVC)
Properties and characterization
Thermal and thermodynamic properties
Melting
Polymer blends
Melting curve
Experimental study
Property processing relationship
Property formulation relationship
Operating conditions
Thermal properties
Ethylene oxide polymer
Chlorinated ethylene polymer
Percolation
Polyvinyl chloride
Suspension polymerization
Threshold
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Summary:Rigid poly(vinyl chloride) (PVC), PVC/chlorinated polyethylene (CPE), and PVC/CPE/oxidized polyethylene (OPE) compounds were prepared in a Haake torque rheometer. The fusion percolation thresholds (FPTs) of these compounds were defined and compared. Moreover, the fusion curves of these compounds were illustrated and compared. A higher processing temperature resulted in a shorter fusion time and a lower FPT. For PVC/CPE compounds, a higher concentration of CPE could decrease the FPT and promote PVC particles to fuse together easily. Meanwhile, in the beginning of the fusion process, the interaction between a higher concentration of OPE and calcium stearate in PVC/OPE compounds could also promote an easy fusion of the PVC particles. For PVC/CPE/OPE compounds, the synergistic interaction among CPE, OPE, and calcium stearate resulted in the shortest fusion time and the lowest FPT. The FPTs of rigid PVC samples were strongly dependent on not only the processing conditions but also the formulations of the samples. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 3022–3029, 2001
Bibliography:ArticleID:APP1752
ark:/67375/WNG-FD5MTS0W-9
istex:C34AB8290C8249EB956FF57C68B88FE9B8D2F3B2
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1752