Effect Of In-Situ Vulcanization Of Styrene Modified Natural Rubber In Adhesive And Rubber Toughened Polystyrene Applications
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Date
2010-06
Authors
Neoh, Siew Bee
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
In this research, establishment of vulcanization formulation of styrene modified natural
rubber ( SNR ) vulcanizates by using in situ vulcanization technique was investigate. The
synthesis of SNR was prepared through emulsion polymerization. Deproteinized natural
rubber latex (DPNR) was grafted with styrene monomer with the addition of ammonium
persulfate as initiator. SNR vulcanizate was prepared with different vulcanization
methods and vulcanization agents. The first stage of the work involved in established the
emulsion polymerization of SNR with ratio of styrene monomer and DPNR ratio 25%:
75%. For adhesive application, the effect of three pre-vulcanization systems,
conventional vulcanization (CV), semi-efficient vulcanization (semi-EV), and efficient
vulcanization (EV) on tensile properties of SNR pre-vulcanizates were observed. The
semi-EV vulcanization system showed suitable properties as SNR pre-vulcanizates
adhesives.
Description
Keywords
Effect Of In-Situ Vulcanization , Styrene Modified Natural Rubber In Adhesive And Rubber Toughened Polystyrene