Poliuretanos como producto de la Biorefinería de la Industrialización de arroz
Fecha
2019
Autores
Lopretti, M.
Lluberas, G.
Montanez, A.
Silva, C.
Jose-Roberto, Vega-Baudrit
Pereira, R.
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad del País Vasco (España)
Resumen
La valorización de la industrialización de biomasa tanto de granos como de cereales se
considera hoy día una oportunidad para los países productores ya que permite obtener mayor valor de su
producción y dar soluciones al acumuló de residuos.
En la actualidad debido al desarrollo de la química verde se busca la obtención de polímeros
biodegradables, y hasta donde sabemos no existen muchos precedentes en el desarrollo de poliuretanos
biodegradables. Esto se debe a que desde el desarrollo de del primer poliuretano hasta nuestros días la
mayoría de los polioles y extendedores de cadena utilizados para la obtención de poliuretanos derivan de
subproductos del petróleo.
Una alternativa a utilizar una materia prima no renovable, son los derivados naturales, tales como
la lignina (componente principal de la cascara de arroz), ya que posee un origen natural y se encuentra
abundantemente, lo que ocasiona un muy fácil acceso a la cascara de arroz. Se pretende comprobar que
estos derivados naturales podrían proporcionar biodegradabilidad al poliuretano sintetizado, lo cual no se
logra obtener mediante subproductos del petróleo.
Este trabajo se centra en la síntesis y caracterización de poliuretanos obtenidos a partir de
cascara de arroz, así como del estudio de su degradación frente a diferentes medios biológicos.
The valorization of the biomass industrialization of both grains and cereals is now considered an opportunity for countries that can already obtain higher production value and provide solutions to the accumulated waste. Nowadays, due to the development of green chemistry, the aim is to obtain biodegradable polymers, and as far as we know that there are not many precedents in the development of biodegradable polyurethanes. This is due to the fact that from the development of the first polyurethane to the present day, most of the polyols and chain extenders for the production of polyurethanes derived from petroleum byproducts. An alternative to using a non–renewable raw material, are the natural derivatives, stories such as lignin (main component of the rice husk), which has a natural origin and is abundantly found, which occasionally is very easy access to the husk of rice. It is a biodegradability to the synthesized polyurethane, which was not achieved by means of petroleum by–products. This work focuses on the synthesis and characterization of polyurethanes obtained from rice husk, as well as the study of its degradation against different biological media.
The valorization of the biomass industrialization of both grains and cereals is now considered an opportunity for countries that can already obtain higher production value and provide solutions to the accumulated waste. Nowadays, due to the development of green chemistry, the aim is to obtain biodegradable polymers, and as far as we know that there are not many precedents in the development of biodegradable polyurethanes. This is due to the fact that from the development of the first polyurethane to the present day, most of the polyols and chain extenders for the production of polyurethanes derived from petroleum byproducts. An alternative to using a non–renewable raw material, are the natural derivatives, stories such as lignin (main component of the rice husk), which has a natural origin and is abundantly found, which occasionally is very easy access to the husk of rice. It is a biodegradability to the synthesized polyurethane, which was not achieved by means of petroleum by–products. This work focuses on the synthesis and characterization of polyurethanes obtained from rice husk, as well as the study of its degradation against different biological media.
Descripción
Palabras clave
POLIURETANOS, BIOREFINERÍA, CASCARA DE ARROZ, POLYURETHANES, BIOREFINERY, RICE HUSK, GREEN CHEMISTRY