Estudio de la estabilidad y comportamiento reológico de un suavizante comercial frente a la adición de un sistema de fragancia

This study evaluates the stability and viscosity change of a softener from a household cleaning company in Colombia; and aims to determine if the addition of fragrance by Givaudan causes instability to the softener. Through rheology tests between 0.01s-1 and 100s-1 for a period of stability of eight weeks it is evident that the softener viscosity drop is equal with or without fragrance. On the other hand, viscosity measurement with a Brookfield DV at 30 rpm for samples at 4ÀC, 43ÀC and ambient temperature shows changes in all measurements attributed to the thermodynamic instability of the emulsifier. Additionally, through the tests of turbiscan stability index, rheology and particle size to the laboratory prepared samples with different temperature of addition, it is concluded that the temperature of incorporation of the fragrance in the process is not significant. Finally, it is proposed to use 24.3% v/v of isopropyl myristate as a new solvent for the fragrance due to the viscosity increases in a 5 weeks stability, compared to dipropylene glycol, the current solvent.

• Autores: Villarreal Chinchilla, Javier David
• Tipo de recurso: Trabajo de grado de pregrado
• Fecha de publicación: 2017
• Institución: Universidad de los Andes
• Repositorio: Séneca: repositorio Uniandes
• Idioma: spa
• OAI Identifier: oai:repositorio.uniandes.edu.co:1992/61474
• Acceso en línea: http://hdl.handle.net/1992/61474
• Palabra clave: Agentes tensoactivos; Detergentes; Reología
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/