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Plastics Engineering
Plastics recycling in the USA has been growing year-over-year since we began measuring in the early 1990s. That's good news for the environment. However, like other materials, it's unlikely we ever will be able to recycle all used plastics. So what do we do with used plastics that cannot be recycled? The molecules that make up plastics are composed mainly of carbon and hydrogen, so burying used plastics in landfills is a waste of resources. That’s one reason some U.S. communities convert their non-recycled garbage (plastics and other combustibles) into energy.
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SPE Plastics Research Online
 Increasing seafood consumption has led to generation of a large volume of seashell waste that is essentially treated as useless and dumped onto reclaimed land or into coastal waters. Seashells are mainly composed of calcium carbonate (CC), mineral oxides, and organic materials. When decomposing, seashells produce gases whose odor and toxicity are hazardous to human health. Because CC is one of the most commonly used inorganic fillers, recycling seashells offers a means of using this material productively, for example, as soil conditioners, low-cost absorbents, and as biofiller in polymers.
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Plastics Engineering
The bones of a new home are likely a wood-based product, and steel is going to be the fundamental support of a commercial high-rise. Masonry, stones, and glass will also likely be added during construction. But on projects around the world – big and small – plastics and plastic-derivative products are increasingly being used in construction and building. According to "Plastics Market Watch: Building and Construction," SPI's fourth in a series of reports analyzing key factors impacting the plastics industry’s key end markets, plastics’ wide functionality offers a distinct advantage over other traditional building materials in terms of flexibility, lower costs, energy and weathering efficiency, and durability.
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Plastics News
After months of decline, North American PET bottle resin prices rose in March. Regional prices for recycled high density polyethylene also have increased in recent months, while prices for nylon 6 and 6/6 resins – as well as for recycled polypropylene – have fallen. The 2-cent-per-pound PET hike ends a streak in which prices for the material had slipped for six consecutive months before being flat in February. Prices had fallen a total of 13 cents per pound during that six-month skid.
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The Telegraph
A funeral home in China has started using sophisticated 3-D printing technology to create missing body parts for damaged corpses. The Longhua Funeral Parlour in Shanghai set up its printing studio to repair bodies which may have been disfigured in fires or accidents, or even to make the dead person appear better-looking than they were in life. "It is difficult for relatives to see incomplete faces or bodies of their loved ones when they attend memorial services, and makeup cannot always sufficiently repair them," Liu Fengming, an official with the Shanghai Funeral and Interment Service Center, affiliated with the Shanghai Civil Affairs Bureau, told Shanghai Daily.
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Plastics News
Three U.S. PET makers are claiming victory in their battle against PET imported from four other countries. The U.S. International Trade Commission on March 31 voted 6-0 that PET imports from Canada, China, India and Oman are causing injury to the U.S. PET industry. As a result, anti-dumping duties now will be placed on PET imported from those nations. Canadian PET will pay a 13.6 percent anti-dumping duty, while Chinese PET will be charged a duty of between 104.98 percent and 126.58 percent.
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Plastics Today
Finding solutions to the various problems that plague manufacturing is not easy. Often a solution for one manufacturer creates a new challenge for someone else. For example, everyone is always talking about ways to shave seconds, or even tenths of a second, off the cycle times of molds. That certainly sounds like a winner! But when we look at it more closely, we find that there are many reasons some do not find this to be a good thing.
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MECO’s AH Type-2, fitment in limited spaces, on small to large shaft diameters. Available fully split, partially-split or un-split for MRO and OEM equipment.
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Think there's nothing new in twin screw extruder technology?
Think Again.
•Widest choice of metallurgy
•Innovative Continua® spline shaft technology
•Patented Fractional lobe kneading and mixing elements. MORE
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AZoM
When it comes to the various nanowidgets scientists are developing, nanotubes are especially intriguing. That’s because hollow tubes that have diameters of only a few billionths of a meter have the potential to be incredibly useful, from delivering cancer-fighting drugs inside cells to desalinating seawater. But building nanostructures is difficult. And creating a large quantity of nanostructures with the same trait, such as millions of nanotubes with identical diameters, is even more difficult. This kind of precision manufacturing is needed to create the nanotechnologies of tomorrow.
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