Efficient, Profitable Plastics Extrusion Begins with Materials Knowledge

via Plastics Today

All plastics have additives — some obvious, some invisible

First of all, no plastic is 100% pure when it goes into the extruder. All of them have additives — some are obvious, like colorants, and some are invisible, like light stabilizers that keep the Sun’s ultraviolet rays from breaking the molecules and discoloring or weakening the plastic.

HMM — how much matters — is my favorite acronym. I squirm when I hear the words “in it,” as in “it has sugar in it” or “there’s BPA in it.” I want to scream, “How much is in it?” but usually I don’t. Often the speaker wants/needs to avoid dealing with the actual amount. Additives are prime examples: We can’t know a compound is adequately protected from sunlight degradation (UV) without knowing what the additive is, how uniformly it’s mixed, and how much of it is in it.

Read the full story here: https://www.plasticstoday.com/extrusion-film-sheet/efficient-profitable-plastics-extrusion-begins-materials-knowledge

Stanford pediatric arbovirologist Desiree LaBeaud’s quest to eradicate mosquito-borne diseases led to an unlikely culprit: plastic trash

LaBeaud’s quest to eradicate mosquito-borne diseases led to an unlikely culprit: plastic trash

via Stanford Report

In 2021, Stanford pediatrician and arbovirologist Desiree LaBeaud and her colleagues launched the nonprofit organization HERI-Kenya to reduce the spread of mosquito-borne diseases in Kenya by cleaning up the plastic waste where the insect breed.

The Aedes aegypti mosquito is a global havoc-wreaker, responsible for debilitating and deadly illnesses ranging from dengue fever to chikungunya and Zika virus. With a prodigious ability to multiply and a growing range extending from Africa and South America to much of Asia and many parts of the United States, it infects an estimated 400 million people annually.

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photo credit: Julia Joppien

 

No vaccines or therapeutics are available for these illnesses, so targeting the insect’s breeding grounds is critical to saving lives.

That’s why, in 2015, one of the first things Desiree LaBeaud did upon joining the Stanford Department of Pediatrics was apply for a Bechtel Faculty Scholar Award. She wanted to use the funds to teach Kenyan school children and community members about the mosquito breeding grounds around their homes. She had been studying mosquito-borne illness in Kenya for over a decade as a pediatric arbovirologist, a specialist who studies diseases caused by blood-sucking insects such as mosquitoes and ticks. She saw that dengue fever was sickening many Kenyan children due to a lack of awareness about its cause and how to prevent it.

Read the full story here: https://news.stanford.edu/report/2022/02/09/investigating-mosquito-borne-diseases-led-unlikely-culprit-plastic-trash/

How ‘super-enzymes’ that eat plastics could curb our waste problem

How ‘super-enzymes’ that eat plastics could curb our waste problem

via The Guardian

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Photo by Catherine Sheila on Pexels.com

Beaches littered with plastic bottles and wrappers. Marine turtles, their stomachs filled with fragments of plasticPlastic fishing nets dumped at sea where they can throttle unsuspecting animals. And far out in the Pacific Ocean, an expanse of water more than twice the size of France littered with plastic waste weighing at least 79,000 tonnes.

The plastic pollution problem is distressingly familiar, but many organisations are working to reduce it. Alongside familiar solutions such as recycling, a surprising ally has emerged: micro-organisms. A handful of microbes have evolved the ability to “eat” certain plastics, breaking them down into their component molecules. These tiny organisms could soon play a key role in reducing plastic waste and building a greener economy.

Read the full story here: https://www.theguardian.com/environment/2022/feb/05/how-super-enzymes-that-eat-plastics-could-curb-our-waste-problem

New lightweight material is stronger than steel

New lightweight material is stronger than steel​

via MIT News

The new substance is the result of a feat thought to be impossible: polymerizing a material in two dimensions.

Using a novel polymerization process, MIT chemical engineers have created a new material that is stronger than steel and as light as plastic, and can be easily manufactured in large quantities.

The new material is a two-dimensional polymer that self-assembles into sheets, unlike all other polymers, which form one-dimensional, spaghetti-like chains. Until now, scientists had believed it was impossible to induce polymers to form 2D sheets.

Read the full story here: https://news.mit.edu/2022/polymer-lightweight-material-2d-0202

DOE Invests $13.4 Million to Combat Plastic Waste, Reduce Plastic Industry Emissions

via Energy.gov

The U.S. Department of Energy (DOE) today announced $13.4 million in funding for next generation plastics technologies that reduce the energy consumption and carbon emissions of single-use plastics. The seven selected research and development (R&D) projects — led by industry and universities — will convert plastic films into more valuable materials and design new plastics that are more recyclable and biodegradable. This investment advances  DOE’s work to address the challenges of plastic waste recycling and supports the Biden Administration’s efforts to build a clean energy economy and ensure the U.S. reaches net-zero carbon emissions by 2050. 

Read the full story here: https://www.energy.gov/articles/doe-invests-134-million-combat-plastic-waste-reduce-plastic-industry-emissions

Mouse study shows microplastics infiltrate blood brain barrier

Mouse study shows microplastics infiltrate blood brain barrier

Much of the millions of metric tons of plastic waste that washes into the sea each year is broken down into tiny fragments by the forces of the ocean, and researchers are beginning to piece together what this means for organisms that consume them. Scientists in Korea have turned their attention toward the top of the food chain by exploring the threat these particles pose to mammal brains, where they were found to act as toxic substances.

In recent years, studies have revealed the kind of threat microplastics pose to marine creatures. This has included weakening the adhesive abilities of muscles, impairing the cognitive ability of hermit crabs and causing aneurysms and reproductive changes in fish. They’ve turned up in the guts of sea turtles all over the world, and been discovered in seal poo as evidence of them traveling up the food chain. Research has also shown they can alter the shape of human lung cells.

Read the full story here: https://newatlas.com/environment/microplastics-blood-brain-barrier/

KEEP AMERICA BEAUTIFUL CELEBRATES 24 YEARS OF AMERICA RECYCLES DAY

KEEP AMERICA BEAUTIFUL CELEBRATES 24 YEARS OF AMERICA RECYCLES DAY

Every November 15, thousands of local communities across the country come together to participate in America Recycles Day® – a national, trademark initiative established by Keep America Beautiful® in 1997. It is the only nationally-recognized day dedicated to promoting and celebrating recycling in the United States.

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In its 24th year, America Recycles Day educates and encourages individuals on how to be more mindful of what they consume, where and how to properly recycle, and to pledge to recycle more and recycle right in their everyday lives.  

Read the full story here: https://kab.org/keep-america-beautiful-celebrates-24-years-of-america-recycles-day/

 

TRASH AND BURN

BIG BRANDS STOKE CEMENT KILNS WITH PLASTIC WASTE AS RECYCLING FALTERS

Consumer goods giants are funding projects to send plastic trash to cement plants, where it is burned as cheap energy. They’re touting it as a way to keep plastic out of dumps and use less fossil fuel. Critics say it undercuts recycling efforts and worsens air quality. One said it was “like moving the landfill from the ground to the sky.”

The global consumer goods industry’s plans for dealing with the vast plastic waste it generates can be seen here in a landfill on the outskirts of Indonesia’s capital, where a swarm of excavators tears into stinking mountains of garbage.

Read the full story here: https://www.reuters.com/investigates/special-report/environment-plastic-cement/

Trafficking of plastic waste is on the rise and criminal groups are profiting, report says

via LA Times

Americans like to think they are recycling their plastic takeout food containers, cutlery and flimsy grocery bags when they toss them into those green or blue bins. But, too often, that waste is shipped overseas, sometimes with the help of organized crime groups, where it litters cities, clogs waterways or is burned, filling the air with toxic chemicals.

report published Monday by the independent Swiss research group Global Initiative Against Transnational Organized Crime, whose members include current and former law-enforcement officials, sheds new light on how this waste winds up in poorer countries that had agreed not to accept it.

Read the full story here: https://www.latimes.com/environment/story/2021-11-08/report-trafficking-of-plastic-waste-is-on-the-rise-and-criminal-groups-are-profiting

Plastics to outpace coal’s greenhouse gas emissions by 2030 -report

WASHINGTON, Oct 21 (Reuters) – The carbon-intensive production of plastics is on pace to emit more greenhouse gases than coal-fired power plants within this decade, undercutting global efforts to tackle climate change, a report released on Thursday said.

The report by Bennington College and Beyond Plastics projected that the plastic industry releases at least 232 million tons of greenhouse gases each year throughout its lifecycle from the drilling for oil and gas to fuel its facilities to incineration of plastic waste. That is the equivalent of 116 coal-fired power plants.

Read the full story here: https://www.reuters.com/business/cop/plastics-outpace-coals-greenhouse-gas-emissions-by-2030-report-2021-10-21/

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