domingo, septiembre 17, 2006

Eco materiales

"The approaches of materials technology to improve the environment cannot be generalized from one viewpoint. They can be divided into three categories based on the relation between a material’s properties and its role in improving the environment:

A. Functional materials for environmental protection; Materials properties are optimized to improve each environmental problem.

B. Materials supporting low-emission systems; Materials properties are needed to support environmentally benign systems.

C. Materials of strategic substitution for an environment friendly social system; Materials are used for a given property but society demands that they have lower environmental burden.

Materials should be characterized by 1) lower environmental loading, 2) flexibility in production, 3) long life and the possibility of progressive maintenance. These aspects should be maintained throughout the life cycle of the material via a proper life-cycle design.

Development of various types of ecomaterials

The development of Ecomaterials can take three approaches corresponding to the way each type of material is to be used. They are classified into four categories from a technological viewpoint; 1) harmful substance-free type, 2)low environmental profile type including materials from recycled resources and from natural resources, 3) recyclable materials and 4) materials for efficient energy flow.

These approaches have been expanding the area of environmentally benign materials from the stage of “end of pipe” or “mouth of” to the total stages of the life cycle, namely “smart” pipe."

La información anterior, la tomé de un articulo sobre ecomateriales que hizo el National research institute for Materials Science and TechnologyAgency, y me parecio importante resaltar lo anteriormente citado, porque da una base para empezar a investigar más a fonde el tema de eco materiales enfocado al diseño ,y de cómo éstos se pueden utilizar de una manera sostenible de diferentes maneras, ya sea porel material en si mismo o por características que lo hacen eficiente en términos ecológicos.

Silvia Lleras