Αποτελέσματα Αναζήτησης
The most commonly produced plastic consumer products include packaging made from LDPE (e.g. bags, containers, food packaging film), containers made from HDPE (e.g. milk bottles, shampoo bottles, ice cream tubs), and PET (e.g. bottles for water and other drinks). Together these products account for around 36% of plastics use in the world.
- Plasticity
In physics and materials science, plasticity (also known as...
- Synthetic
Some familiar household synthetic polymers include: Nylons...
- Plastic pollution
In 2018 more than 343 million tonnes of plastic waste were...
- Plasticity
In 2018 more than 343 million tonnes of plastic waste were generated, 90% of which was composed of post-consumer plastic waste (industrial, agricultural, commercial and municipal plastic waste). The rest was pre-consumer waste from resin production and manufacturing of plastic products (e.g. materials rejected due to unsuitable colour, hardness ...
25 Απρ 2023 · The material is made from fossil fuels such as crude oil, which are transformed via heat and other additives into a polymer. In 2019, plastics generated 1.8 billion metric tonnes of greenhouse gas emissions – 3.4 per cent of the global total. Where is all this plastic coming from?
1 ημέρα πριν · Plastics are persistent large-scale pollutants, and plastic debris (such as bottles, straws, containers, and plastic wrap) and particulates have been found in many environmental niches, from Mount Everest to the bottom of the sea.
17 Οκτ 2024 · In this article a brief review of the essential properties of plastics is provided, followed by a more detailed description of their processing into useful products and subsequent recycling. For a fuller understanding of the materials from which plastics are made, see chemistry of industrial polymers.
23 Σεπ 2024 · ENVIRONMENT. The world's plastic pollution crisis, explained. Much of the planet is swimming in discarded plastic, which is harming animal and possibly human health. Can it be cleaned up? By...
25 Αυγ 2023 · Download Plastic Pollution Fast Facts. 25 Aug 2023 | Sustainable Development Summit. On average, the world is producing 430 million tonnes of plastic per year - two thirds of which are only used...