Αποτελέσματα Αναζήτησης
Plastic - Wikipedia. Household items made of various types of plastics. Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes.
- Plasticity
In physics and materials science, plasticity (also known as...
- Synthetic
Some familiar household synthetic polymers include: Nylons...
- Plasticity
Two main processes are used to produce plastics – polymerisation and polycondensation – and they both require specific catalysts. In a polymerisation reactor, monomers such as ethylene and propylene are linked together to form long polymer chains.
17 Οκτ 2024 · Plastic, polymeric material that has the capability of being molded or shaped. This property of plasticity, often found in combination with other special properties such as low density, low electrical conductivity, transparency, and toughness, allows plastics to be made into a great variety of products.
31 Μαρ 2021 · Here, three women leaders from the Global Plastic Action Partnership community, representing diverse perspectives from the United States, Ghana and Viet Nam, weigh in on what it will take to eradicate plastic pollution – and why women’s leadership and gender equality are absolutely vital to this effort.
Plastics are made up of polymeric resin often mixed with other substances called additives. 'Plasticity 'is the term used to describe the property, feature and attribute of a material that can deform irreversibly without breaking.
16 Μαΐ 2022 · Plastics are (mostly) synthetic (human-made) materials, made from polymers, which are long molecules built around chains of carbon atoms, typically with hydrogen, oxygen, sulfur, and nitrogen filling in the spaces.
Crude oil is one of the main ingredients needed to make plastic. But it’s also a fossil resource, which means there’s a limited amount of it on our planet. Happily, for one key component in plastic, called aniline, we discovered a way to create it from biomass (materials such as corn, straw and wood) instead of oil.
