In the last decades, nanotechnology has grown exponentially among emerging technologies that provide practical and acceptable solutions to sustainable development in society's global challenges (i.e., meeting rising demands for essential commodities like water, food, and energy). However, as nanomaterials production has grown in quantity and volume, the environmental impact of nanowastes released directly into the environment will be a serious problem in the future due to their small size, high reactivity, and toxicity. Dealing with nanowastes is not easy like traditional bulk materials, as they can float in the air and penetrate animal and plant cells easily, provoking unknown effects to human health, ecosystems, and biodiversity. Besides that, a very little is still known about the behavior of nanomaterials in the environment and their exposure/ occupational risks in the so-called of End-of-Life-Phase (EOL) and life cycle impact analysis (LCIA). Considering such situation, numerous efforts have been recently made to (1) develop efficient and unified policy to regulate the field of nanotechnology, (2) establish new effective methods and protocols to recycle nanowastes to combat their unexpected impact on human health and well-being, and (3) apply the precautionary principle to all nanotechnology developments. In this special E-talk topic, we aim to discuss and analyze underlying concepts related to:

• Nanotechnology: what is it, and how is its development inserted into society?
• Sustainable Development Goals (SDGs): Global framework
• Nanomaterials fate life cycle and risk assessment: EOL vs. LCIA
• Nanowaste: Definition & how to deal with the final destination of nanowaste?
• Nanowastes and the environment:  Volume and management paradigm?
• Current status and challenges: Commercialization and disposal/ recycling standards of nanotechnological wastes in relation to SDGs targets.

The cork oak extracted from oak trees is using in many areas for isolation purposes. Cork oak is a natural insulating material. Cork oak is using primarily in bottle industry in various fields such as bottle stopper, medicine, shoes, motor industry, floor coverings, heat and sound insulation systems. The physical and mechanical properties of this reinforced cork oak powder and vinyl ester composites were investigated. Cork oak is reinforcement material, and vinyl ester resin is matrix material. Methyl ethyl ketone peroxide (MEK) is hardener, LR 9000 is binder for surface modification of cork oak and dibutyltin dilaurate is catalyst. Tensile, impact, hardness, density and acoustic tests were performed on composite products. With the addition of cork oak, it was observed that the mechanical properties decreased and after a certain rate increased. However, it has been observed that the sound absorbance properties increase. According to the results it is suggested that it can be use as sound insulation material.

The cork oak extracted from oak trees is using in many areas for isolation purposes. Cork oak is a natural insulating material. Cork oak is using primarily in bottle industry in various fields such as bottle stopper, medicine, shoes, motor industry, floor coverings, heat and sound insulation systems. The physical and mechanical properties of this reinforced cork oak powder and vinyl ester composites were investigated. Cork oak is reinforcement material, and vinyl ester resin is matrix material. Methyl ethyl ketone peroxide (MEK) is hardener, LR 9000 is binder for surface modification of cork oak and dibutyltin dilaurate is catalyst. Tensile, impact, hardness, density and acoustic tests were performed on composite products. With the addition of cork oak, it was observed that the mechanical properties decreased and after a certain rate increased. However, it has been observed that the sound absorbance properties increase. According to the results it is suggested that it can be use as sound insulation material.