Plastics are a wide range of synthetic or semisynthetic materials composed primarily of polymers. Their defining characteristic, plasticity, allows them to be molded, extruded, or pressed into a diverse …

2025年11月19日 · plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure.

2025年10月31日 · Plastic products are generally versatile, durable and lightweight. Plastic products are prominent in the construction, transportation, and packaging industries. Plastic innovations …

2023年4月21日 · Plastic is a synthetic polymer made from various organic materials that can be molded into almost any shape. Some types of plastic are clear and transparent, like that used in disposable …

Plastic leakage from the economy results from low-cost virgin plastic feedstocks and recycling challenges with resin combinations, additives, and contaminated plastics.

The meaning of PLASTIC is a plastic substance; specifically : any of numerous organic synthetic or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular …

2025年11月18日 · Plastic coverage from Scientific American, featuring news and articles about advances in the field.

2025年12月4日 · UNEP supports governments, businesses, financial institutions, and other stakeholders in driving a just transition to a circular economy for plastics, helping to reduce plastic pollution and its …

Worried about bisphenol A (BPA) and other plastic chemicals? Read about types of plastics, how they're made and what the resin identification (recycling) numbers mean.

2026年1月14日 · Plastic bags tangled in trees. Takeout containers scattered along roadsides. Bottles clogging streams and waterways and washing up on beaches. Across the United States, plastic …