Abstract
Natural rubber latex is the white liquid in the form of the colloidal dispersion of rubber globules suspended in the aqueous liquid. Produced in large quantities in Ivory Coast, the local transformation of natural latex has so far remained insignificant, although some attempts have been made to use it in the manufacture of flexible facade briquettes for rounded walls. Thus, this study aims to incorporate clay as a filler in natural latex for use as an adhesive for tile installation. To do this, different proportions of clay paste were added to the natural latex and the resulting mixtures were used to make the sample and tile adhesive. From the analysis of the results obtained, it appears that the samples with a clay paste density of 0.8 and 1 absorb less water and shows good pull-out strength. The mixtures of 30% and 35% latex and 0.8 and 1 clay paste density respectively have pullout stresses greater than 1 N/mm2. According to NF EN 1348, these adhesives can therefore be used as tile adhesive.
Highlights
Cote d’Ivoire produces 60% of Africa’s rubber, making it the largest rubber producer in Africa and the seventh largest (7th) producer in the world
Natural rubber latex is the white liquid in the form of the colloidal dispersion of rubber globules suspended in the aqueous liquid
Different proportions of clay paste were added to the natural latex and the resulting mixtures were used to make the sample and tile adhesive
Summary
Cote d’Ivoire produces 60% of Africa’s rubber, making it the largest rubber producer in Africa and the seventh largest (7th) producer in the world It reached 800,000 tonnes in 2018 compared to 603,000 tonnes in 2017 and 468,000 in 2016 [1]. Forecasts are for a 20% increase over the three years. Despite this steady rise, individual incomes are falling as global rubber production increased in three years from 9 million tons to 13 million tons in 2017, but demand has not kept up and world prices have fallen from $5,000 per ton to just $1,000, leading to a collapse in income for rubber farmers.
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