Plastic Definition and Composition . PET (also abbreviated PETE) is short for polyethylene terephthalate, the chemical name for polyester. At a slightly higher molecular weight, PET is made into a high-strength plastic that can be shaped by all the common methods employed with other thermoplastics. This article was most recently revised and updated by, https://www.britannica.com/science/polyethylene-terephthalate, United States Environment Protection Agency - Poly(ethylene Terephthalate). It has an excellent level of wear resistance compared to other plastics. The National Association for PET Container Resources (NAPCOR) defines PET as: "Polyethyl… By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. PET. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... A History of Everyday Technology in 68 Quiz Questions. Get exclusive access to content from our 1768 First Edition with your subscription. It is also effective as a fiberfill for winter coats and for sleeping bags. Have you ever wanted a nonchronological history of technologies that became, during one era or another, part of everyday experience? Polypropylene. PET must be dry just prior to processing, and amorphous PET requires crystallizing prior to drying so that the particles don’t stick together as they go though glass transition. It is a polymer created by the combination of two monomers: modified ethylene glycol and purified terephthalic acid. It is usually first categorized by its density as indicated in the abbreviations e.g. It has excellent resistance to high and low temperature performance, resistance to organic solvents, health and safety and so on. The industry is also working with organisations such as RECOUP on further innovation in the design of PET plastic bottles. However, it can be really hard to collect clean, high quality plastics! Polyethylenterephthalat (PET): z.B. In this form, PET has become widely used in carbonated-beverage bottles and in jars for food processed at low temperatures. PET is produced by the polymerization of ethylene glycol and terephthalic acid. PET is the most recyclable plastic, and is increasingly being made into a diverse array of products. Manufacturers like it because it is strong, safe, transparent, and versatile. Water is also produced as a by-product. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. You have probably seen this plastic in your soda and water bottles that are marked with the resin code #1. Vor- und Nachteile von Plastik (Kunststoff) Auch wenn wir hier im Blog sehr häufig gegen Plastik argumentieren, hat der Kunststoff natürlich nicht nur Nachteile. Production by Imperial Chemical of its Terylene-brand PET fibre did not begin until 1954. PET was first prepared in England by J. Rex Whinfield and James T. Dickson of the Calico Printers Association during a study of phthalic acid begun in 1940. Whilst this is mostly true, what people don’t realise is that pets are very self-aware, and they can use their status in a positive way, often retaining a significant amount of power in the relationship. He also writes about the industry. PET bottlesPET is a thermoplastic polymer resin of the polyester family and is used in synthetic fibers; beverage, food and other liquid containers; thermoforming applications; and engineering resins often in combination with glass fiber. PETRA is the industry association for North Americas producers of PET resin, the clear and lightweight plastic used around the world to safely package foods, beverages, personal care products and other consumer items. You have probably seen this plastic in your soda and water bottles that are marked with the resin code #1. The following are some examples of the most common uses for polyethylene terephthalate: Why do manufacturers turn to PET plastics when they could choose other types of materials that may be more readily available? This allows the material to be processed using a common molding machine and then dried. So wird das Wort Plastik häufig im alltäglichen Sprachgebrauch für jede Art von Kunststoff eingesetzt. PET can also be a very clear plastic an… PET is an acronym for Polyethylene Terephthalate and is best known as the clear plastic used for water and soda bottles. The report, issued by the National Association for PET Container Resources in conjunction with the Association of Plastic Recyclers, further concluded that the decrease in collection volumes in 2015 appears to be the result of a drop in PET collected curbside. Omissions? Manufacturers use PET plastic to package products because of its strength, thermo-stability and transparency. Better design of plastic products, higher plastic waste recycling rates, more and better quality recyclates will help boosting the market for recycled plastics. See more. Mexico and the U.S. combined have a per capita PET consumption that is higher than Western Europe, the second-place region, and is much higher than the developing world. Then polyethylene terephthalate will be introduced. PET bottles are the bottles made of polyethylene terephthalate (PET). Auch das stimmt so nicht, so das Forum PET. PET ist ein Kunststoff, der zur Familie der Polyester gehört und zu 100 Prozent aus Erdöl oder Erdgas besteht. These plastics are a type of thermoplastic polymer resin, useful in various applications including in synthetic fiber … In the 1970s, improved stretch-molding procedures were devised that allowed PET to be made into durable crystal-clear beverage bottles—an application that soon became second in importance only to fibre production. PET is the result of two monomers combining. They are also recycled into polyester fibers and fabric. Polyethylene terephthalate (PET or PETE) is a general-purpose thermoplastic polymer which belongs to the polyester family of polymers. PET explained . PET -- polyethylene terephthalate -- is a form of polyester. In 2001 just 3% of PET bottles were recycled in the UK. PET is also made into fibre filling for insulated clothing and for furniture and pillows. Manufacturers use PET plastic to package products because of its strength, thermo-stability and transparency. More than 1.5 billion pounds of used PET bottles and containers are recovered in the United States each year for recycling. You’re in luck! PET & rPET Plastic, Defined rPET stands for recycled polyethylene terephthalate, or recycled PET. PET, or ‘polyethylene terephthalate’, is a combination of two monomers. We interact with this versatile material in our everyday lives from food and beverage packaging to personal care and beauty containers. Low diffusion coefficient makes PET much more suitable than other plastic materials for use as a recovered, recycled material. PET is the most recyclable plastic, and is increasingly being made into a diverse array of products. PET is spun into fibres for permanent-press fabrics and blow-molded into disposable beverage bottles. This includes soda bottles, bakery products, water bottles, peanut butter jars and even in frozen foods packaging. This means very few PET containers can re-enter the cycle as food-grade containers. In 2014 that number had jumped to 60%, thanks to drinks manufacturers moving to PET bottle production wherever possible and greater national recycling initiatives making it easier for people to recycle. Unlike other types of plastics, polyethylene terephthalate is considered safe and is represented on water bottles with the number "1", indicating it is a safe option. PET is produced from fossil fuels — typically natural gas and petroleum, but it is one of the easiest plastics to recycle. PET is considered a highly recyclable plastic. Special grad… Customers choose PET because it is inexpensive, lightweight, resealable, shatter-resistant and … ThoughtCo uses cookies to provide you with a great user experience. PTFE. These physical properties make it an advantageous option for manufacturers who need safe plastics for use with food products or for continuous use. PET is an acronym for polyethylene terephthalate, a plastic resin and a type of polyester. Shop PETG Plastic Polyethylene Terephthalate or PET products are 100% recyclable and is the most recycled plastic worldwide. Pet definition is - a pampered and usually spoiled child. Ein anderer Faktor ist die Entsorgung von Bio-Plastik. Bottles made of polyethylene terephthalate (PET, sometimes PETE) can be recycled and used to manufacture new bottles and containers, thermoform packaging, strapping and are also used in fiber applications such as carpet and apparel. It has been widely used in … In other words, while other elements might be present, plastics always include carbon and hydrogen. To ensure the pet bottle safety and before they gets the permission, they need to go through a hard test whether they are safe or not. PET (polyethylene terephthalate) itself is a polymer used to widely manufacture affordable, durable and recyclable containers and packaging as well as a form of polyester. Bei der PET-Flaschen-Produktion kommt Bisphenol A jedoch nicht zum Einsatz. It is an estimate that the average household generates about 42 pounds of plastic bottles containing PET annually. The low softening temperature of PET—approximately 70 °C (160 °F)—prevents it from being used as a container for hot foods. Thermoplastics and thermosetting polymers are the two types of plastic. A number of benefits come from the use of PET plastics. However, it can be really hard to collect clean, high quality plastics! PET plastic bottles have been redesigned so that they are 30% lighter than 15 years ago and increasing amounts of recycled plastic are used to manufacture the bottles themselves. PET begins as white resin pellets that become transparent when heated and cured into a desired plastic part. PET plastics are durable and strong. RPET plastics are a similar form to PET. Polyethylene Terephthalate, commonly referred to as PET (or PETE) is a thermoplastic polymer resin. There are both industrial- and consumer-related uses for PET plastics. The presence of the large benzene rings in the repeating units…, …lost ground to polyester- or mylar-based film, which is thinner, less brittle, and more resistant to tearing.…. Corrections? And have you wanted that history in the form of a quiz? Die großtechnische Herstellung erfolgt teilweise noch durch Umesterung von … APET, rPET and Bio-PET are 100% recyclable plastics, and are collected in UK kerbside household rubbish waste collections.   Lids and bottle tops cannot be recycled as well. Die Dauereinsatztemperatur liegt zwischen -40°C und +60°C. In bestimmten Fachkreisen, wie z. The longer a liquid is left in a PET container the greater the potential for the release of the antimony. Because of this, we found a way to use post-consumer recycled PET plastic in our cups and containers. The North American market is mature, with the highest direct PET consumption per capita of any region in the world. When heated together under the influence of chemical catalysts, ethylene glycol and terephthalic acid produce PET in the form of a molten, viscous mass that can be spun directly to fibres or solidified for later processing as a plastic. Under the influence of heat and catalysts, the hydroxyl and carboxyl groups react to form ester (CO-O) groups, which serve as the chemical links joining multiple PET units together into long-chain polymers. PET is a recyclable and reusable plastic which can be super-cleaned to create a multi-use, and multi-reuse plastic … Plastic is any synthetic or semisynthetic organic polymer. See more. Transparent plastic sheet with good impact resistance and outstanding thermoforming characteristics. This means very few PET containers can re-enter the cycle as food-grade containers. PET soon became the most widely produced synthetic fibre in the world. PET wird in drei Qualitätsklassen angeboten: nichtkristallines oder amorphes PET; ist mechanisch nur wenig belastbar. The strongest periods of growth for PET in North America took place when PET gained market share at the expense of glass and aluminum in the carbonated soft drink (CSD) industry, followed by the replacement of glass i… Learn more. Molten PET can be blow-molded into transparent containers of high strength and rigidity that are also virtually impermeable to gas and liquid. Take this quiz. “To recycle or Not to Recycle” is a big question when it comes to plastic recycling. Es kann zudem mit anderen Kunststoffen oder Aluminium beschichtet, bedampft oder in Form von Verbundmaterialien eingesetzt werden. PET-Recycling leistet einen konkreten Beitrag zur Reduktion von Treibhausgasen wie CO2 bei. RPET is the short name often used for recycled polyethylene tetraphyte (PET). PET films (often sold under the trademarks Mylar and Melinex) are produced by extrusion. As a main component in many of the plastic bottles used today, one of the most common discussions about PET plastics is recycling it. Smart News Keeping you current Engineered ‘Super Enzyme’ Breaks Down Plastic The new enzyme could allow for infinite recycling of common PET plastic used in water bottles and clothing PETG is less brittle and more pliable than its PET counterpart, making it ideal for bottles. This new solution from Charpak and its’ partners offers a solution to what happens to black plastic, and non-recycled coloured packaging: NEW for 2020: A new rPET solution can use recycled black plastic PET packaging, and remanufacture it, and other coloured plastics into new food grade recycled packaging. Mehrwegflaschen aus Plastik können bis zu 25-mal wieder befüllt werden. PET is produced from fossil fuels — typically natural gas and petroleum, but it is one of the easiest plastics to recycle. PS, PP, and LDPE typically are not recycled because these plastic materials are more difficult and expensive to process. At that time, Nathaniel Wyeth created the first official PET bottle under this patent. PET Plastics are some of the more commonly discussed plastics when searching for solutions for drinking water. That way the rec… Updates? How to use pet in a sentence. It is resealable; because it is easy to mold into any shape, it is easy to seal. This web page is a brief summary of plastic … In many countries, PET plastics are coded with the resin identification code number "1" inside the universal recycling symbol, usually located on the bottom of the container. They are often used in durable-press blends with other fibres such as rayon, wool, and cotton, reinforcing the inherent properties of those fibres while contributing to the ability of the fabric to recover from wrinkling. PETG has outstanding thermoforming characteristics for applications that require deep draws, complex die cuts and precise molded in details, without sacrificing structural integrity. When recycled, PET can be used in numerous ways for various applications, including use in fabrics such as t-shirts and undergarments. It has a low coefficient of friction making it useful in various applications in which other plastics are not. It has a superior level of stability making it versatile and strong. Plastic Definition Effective Date; PET: Plastic derived from a reaction between terephthalic acid (a) or dimethyl terephthalate (b) and monoethylene glycol (c) and meeting both of the following conditions: The sum of substances (a) or (b) and (c) constitutes at least 90% of the mass of the monomer reacted to form the polymer In chemical terms, ethylene glycol is a diol, an alcohol with a molecular structure that contains two hydroxyl (OH) groups, and terephthalic acid is a dicarboxylic aromatic acid, an acid with a molecular structure that contains a large six-sided carbon (or aromatic) ring and two carboxyl (CO2H) groups. It is commonly used in bottles and other plastic containers. Small amounts of moisture will hydrolyze PET in the melt phase, reducing molecular weight. A pet is usually described as someone who is submissive, willing to take orders, and appreciate a sense of ownership. Sie werden auch in Fasern in der Textilindustrie verwendet. The discovery of Ideonella sakaiensis, a plastic‐degrading bacterium, creates possibilities for a sustainable “bioeconomy” for recycling plastic waste. Water bottles made from PET plastic leach compounds that mimic the hormone oestrogen raising questions about their safety, say German researchers PET bottles lend themselves to recycling because the majority of bottles are clear and technologies are well established to recycle and clean PET to reuse in new beverage bottles. Meanwhile, by 1945 DuPont had independently developed a practical preparation process from terephthalic acid, and in 1953 the company began to produce Dacron fibre. für Plastikflaschen, Computer, Implantate. It is also unlikely to shatter. Escalator with a pile of plastic bottles at a factory for processing and recycling polyethylene terephthalate (PET). HDPE (high density PE), MDPE (medium density PE), LDPE (low density PE) , LLDPE (linear low density PE). When collected in a suitably pure state, PET can be recycled into its original uses, and methods have been devised for breaking the polymer down into its chemical precursors for resynthesizing into PET. It was first synthesized in North America by Dupont chemists during the 1940s. PETG may involve these same monomers, but also includes glycol, giving it different chemical properties than PET. Used PET containers can be washed and re-melted into plasma, from which new items can be crafted. It has a high flexural modulus (making it flexible.). The plastic's chemicals do not leak into the fluid or food stored within it - making it one of the most important products for food storage. HDPE – Das ist eine Plastikart mit einem höheren Schmelzpunkt, die für große Milchbehälter und Reinigungsflaschen und Ähnliches verwendet werden. PET stands for Polyethylene Terephthalate and is mostly used for the manufacturing of plastic bottles for liquid or beverage consumption. 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