Swagata Chakraborty, Jaydeb Gayen, Akash Tarawal, Berger Paints India Ltd.03.21.16
Abstract
The term “renewable” is generally applied to those technologies and energy resources whose common characteristics are that they are non-depletable or naturally replenishable.1 Albeit, a major contribution from renewable resources comes in the form of energy; other uses derived from these resources also have equally significant importance. This article deals with a “tree-extract” called ‘Sweet Sap’ which can be used as an emulsifier for making a water-in-oil emulsion leading to the development of low-VOC solventborne enamels. This emulsion is made using mechanical shear.
Immiscibility arising from the difference in surface tension between the two liquids is reduced by using this emulsifier. The ‘Sweet Sap’, by virtue of having both polar and non-polar ends, adsorbs to the water at one end and non-polar liquids such as oils at the other end and, as a result, significantly reduces the interfacial surface tension. Two conventional emulsifiers available in the market were used to compare the properties of the emulsions and the paints mad
The term “renewable” is generally applied to those technologies and energy resources whose common characteristics are that they are non-depletable or naturally replenishable.1 Albeit, a major contribution from renewable resources comes in the form of energy; other uses derived from these resources also have equally significant importance. This article deals with a “tree-extract” called ‘Sweet Sap’ which can be used as an emulsifier for making a water-in-oil emulsion leading to the development of low-VOC solventborne enamels. This emulsion is made using mechanical shear.
Immiscibility arising from the difference in surface tension between the two liquids is reduced by using this emulsifier. The ‘Sweet Sap’, by virtue of having both polar and non-polar ends, adsorbs to the water at one end and non-polar liquids such as oils at the other end and, as a result, significantly reduces the interfacial surface tension. Two conventional emulsifiers available in the market were used to compare the properties of the emulsions and the paints mad
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