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Composites of polyvinyl chloride—wood fibers: IV. Effect of the nature of fibers
Author(s) -
Maldas D.,
Kokta B. V.,
Daneault C.
Publication year - 1989
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.730110209
Subject(s) - composite material , softwood , materials science , hardwood , polyvinyl chloride , sawdust , isocyanate , pulp (tooth) , kraft paper , pulp and paper industry , polyurethane , medicine , ecology , pathology , engineering , biology
The suitability of different pulps (e.g. chemithermomechanical, kraft, tempure, temalfa, cotton, and sawdust) as well as various wood species (e.g. softwood, spruce; hardwood, aspen and birch) as the reinforcing filler for thermoplastic composites of PVC (two different grades) have been evaluated on the basis of mechanical properties. Mechanical properties of the non‐treated composites were improved by the addition of a coupling agent [poly (methylene (polyphenyl isocyanate))] either in pure state or in solution, and by the pre‐treatment of the fibers by encapsulation. The order of reactivity of the pulps varies widely with the change in the grades of thermoplastics and the quality of treatment. Due to the interference of properties of the pulps in the composites, the relative reactivity changes.