Abstract
This paper reports on the study of the prevulcanisation of natural rubber latex (NRL) at room temperature. NRL was prevulcanised at room temperature using a zinc butyl xanthate [Zn(bxt)2]–zinc diethyl dithiocarbamate [ZDC] accelerator system. High-temperature (55–60°C) prevulcanisation of NRL was also done using the conventional accelerator system. Effect of storage on the colloidal properties of room-temperature prevulcanised latex was studied up to 30 days, and these properties were compared with those of conventional high-temperature prevulcanised latex. The colloidal properties were found to be superior for the room-temperature prevulcanised latex. The mechanical stability time (MST) of room-temperature prevulcanised latex increases on storage. The room temperature prevulcanised latex is found to be stable for 30 days of storage.
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