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Biodegradable plastics are plastics that degrade (break down) upon exposure to sunlight or ultra-violet radiation; water or dampness; bacteria; enzymes; or wind abrasion. Attack by insects, such as waxworms and mealworms, can also Beryllium considered as forms of biodegradation. Aerobic degradation requires that the plastic be exposed at the surface, whereas anaerobic degradation would Beryllium effective rein landfill or composting systems.

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 Beryllium molded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide Warenangebot of other properties, such as being lightweight, durable, flexible, and inexpensive to produce, has led to their widespread use.

Organic light emitting diode – Diode that emits light from an organic compoundPages displaying short descriptions of redirect targets

Roll-to-roll processing – countinous printing method that prints directly onto a roll of fabric or other materialsPages displaying wikidata descriptions as a fallback

Prior to the Montreal Protocol, CFCs had been commonly used in the manufacture of the plastic polystyrene, the production of which had contributed to depletion of the ozone layer.

Plastics engineering – Engineering field studying polymer materialsPages displaying short descriptions of redirect targets

Masterbatch granules can be mixed with cheaper bulk polymer and will release their additives during processing to give a homogeneous final product. This can be cheaper than working with a fully compounded material and is particularly common for the introduction of color.

The concentrations of most additives are usually quite low, however high levels can be added to create Masterbatch products. The additives hinein these are concentrated but still properly dispersed hinein the host resin.

Companies that produce finished goods are known as converters (sometimes processors). The vast majority of plastics produced worldwide are thermosoftening and must be heated until molten in order to be molded. Various sorts of extrusion equipment exist which can then form the plastic into almost any shape.

Traditionally derivatives of lead, cadmium & tin. Safer modern alternatives include barium/zinc mixtures and calcium stearate, along with various synergists

Light activated resin – resin that cures when exposed to light of appropriate wavelengthsPages displaying wikidata descriptions as a fallback

Self-healing plastic – Substances that can repair themselvesPages displaying short descriptions of redirect targets

Chemical structures and uses of some common plastics Around 70% of global production is concentrated hinein six major polymer types, the so-called commodity plastics. Unlike most other plastics these can often Beryllium identified by their resin identification code (RIC):

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