A new, international review conducted by researchers reveals that there is not enough research data on what kind of health effects nano and microplastics have on newborn babies, or during pregnancy and childhood. The concerned ...
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It may sound strange, but chemicals in plastic may make the bathroom scale a less pleasant place to visit.
Jan 26, 2022
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A study documenting indoor air quality and housing characteristics in 4 isolated First Nations communities in northwestern Ontario found frequent rates of respiratory infections in children under 3 years of age and that high ...
Jan 24, 2022
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For women undergoing breast augmentation, returning to exercise one week after surgery does not increase the risk of complications—but does lead to increased patient satisfaction, reports a clinical trial in the January ...
Dec 22, 2021
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As we live in a dynamically changing environment, it is important for our brain to not only learn new things but also to modify existing memories. This is commonly referred to as "cognitive flexibility." Without this ability, ...
Dec 21, 2021
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Over 1kg of plastic waste is generated per anesthesia procedure, an audit of surgical patients in a burns unit in Spain has revealed. Plastic wrappers are the most common item of waste. These results will be presented at ...
Dec 17, 2021
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The brain is a remarkably complex and adaptable organ. However, adaptability decreases with age. As new connections between nerve cells in the brain form less easily, the brain's plasticity decreases. If there is an injury ...
Dec 14, 2021
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African American women are less likely to be pictured in social media posts showing the outcomes of breast reconstruction, reports a study in the December issue of Plastic and Reconstructive Surgery, the official medical ...
Dec 01, 2021
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The versatility of the nervous system comes from not only the diversity of ways in which neurons communicate in circuits, but also their "plasticity," or ability to change those connections when new information has to be ...
Nov 29, 2021
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Plastic waste, amounting to 8 million tons annually, turns into microplastics (MPs) through constant exposure to UV rays and sea waves. These MPs are consumed by lower-level organisms such as plankton, posing a threat to ...
Nov 23, 2021
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Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular weight, and may contain other substances to improve performance and/or reduce costs.
The word derives from the Greek πλαστικός (plastikos) meaning fit for molding, and πλαστός (plastos) meaning molded. It refers to their malleability, or plasticity during manufacture, that allows them to be cast, pressed, or extruded into an enormous variety of shapes—such as films, fibers, plates, tubes, bottles, boxes, and much more.
The common word plastic should not be confused with the technical adjective plastic, which is applied to any material which undergoes a permanent change of shape (plastic deformation) when strained beyond a certain point. Aluminum, for instance, is plastic in this sense, but not a plastic in the common sense; while some plastics, in their finished forms, will break before deforming and therefore are not plastic in the technical sense.
There are two types of plastics: thermoplastics and thermosets. Thermoplastics, if exposed to enough heat, will melt. Thermosets will keep their shape until they are charred and burnt. Some examples of thermoplastics are grocery bags, piano keys and some automobile parts. Examples of thermosets are children's dinner sets and circuit boards.
This text uses material from Wikipedia, licensed under CC BY-SA
