The Polypropylene Industry Is Driven By Increasing Demand From Packaging Applications

The Global Polypropylene Market is estimated to be valued at US$ 125.62 Bn in 2025 and is expected to exhibit a CAGR of 4.7% over the forecast period 2025 to 2032.

Polypropylene Market- https://prachicmi.livepositively.com/polypropylene-market-is-estimated-to-witness-high-growth-owing-to-technological-advancements-in-pp-chemical-synthesis/new=1

#CoherentMarketInsights #PolypropyleneMarket #Polypropylene #PolypropyleneMarketSize #PlasticMaterial #RecyclablePlastic

#NewsUpdate: Commercial #tea bags with #polypropylene based #nylon release millions of dangerous microplastics during use

#Srly? No one thought this was a bad idea?

Yes, Virginia, many studies have shown that steeping a single #plastic #teabag can release billions of #microplastics and #nanoplastics contaminants into a cup of hot tea.

Microplastics can leach #toxic chemicals and have been linked to a variety of detrimental #health conditions ...

https://www.plasticheal.eu/en/news/publications/commercial-tea-bags-release-millions-microplastics-during-use

5 firms in #plastic #pollution alliance ‘made 1,000 times more plastic than they cleaned up’ 5 #oil and #chemical companies which promised to divert plastic from #environment produced 132m tonnes of it, analysis finds #fossilfuels #oceans - two types of plastic; #polyethylene (#PE) and PP (#polypropylene) in five years – more than 1,000 times the weight of the 118,500 tonnes of waste plastic the alliance has removed https://www.theguardian.com/environment/2024/nov/20/five-firms-in-plastic-pollution-alliance-made-1000-times-more-waste-than-they-saved-analysis-shows #ExxonMobil #Dow #Shell #TotalEnergies #ChevronPhillips

Getting Started With Polypropylene (PP) 3D Printing https://hackaday.com/2024/09/06/getting-started-with-polypropylene-pp-3d-printing/ #3dPrinterhacks #polypropylene

Foamed #plastic carriers boost #biofilm formation in #wastewater treatment.

#polypropylene #nitrogen

https://phys.org/news/2024-09-foamed-plastic-carriers-boost-biofilm.html

https://undark.org/2024/08/21/plastic-waste-transformed-into-food-for-humans

@MichiganTech system begins with a…shredder, which reduces…to small shards that then move into a reactor, where they soak in #ammoniumhydroxide under high heat. Some #plastics, such as #PET, which is commonly used to make disposable water bottles, break down at this point. Other plastics used in military food packaging — namely #polyethylene and #polypropylene — are passed along to another reactor, where they are subject to much higher heat and an absence of oxygen…

Cold Steel #polypropylene, octagonal section #jo staff (54")

Way heavier than wooden counterparts. A bit thicker, too. Not wobbly, at all. Feels *solid*

And, obvs, doesn't fit in the weapons bag I got for the polypro stuff, because I am an idiot.

#aikido

https://phys.org/news/2023-12-potentially-chemical-byproducts-left-sunlight.html

#polystyrene…produced "a higher diversity of chemicals" than the #polyethylene and #polypropylene.

"Once you #photodegrade them—especially, polystyrene—the chemicals can recombine and produce hundreds of different chemicals."

"The microlayer covers the whole ocean, which represents 70% of the Earth's surface…If you alter the chemistry of that layer, you're altering the barrier between sea and air, and altering the exchange of material including climate-active gases."

I modeled some new #tinywhoop ducts in #solvespace for my Nux65 build. I'm gonna print them in PP (#polypropylene). PP's some tough #filament, let's see how they hold up in the stress tests. #3dprinting #fpv

3/
By screening other #polymers, it is found that #polypropylene and #polyimide (#Kapton) are stable in the #electrolyte. Finally, it is demonstrated that reversible self-discharge of LiFePO4–graphite cells can be virtually eliminated by replacing PET jellyroll tape with chemically stable #polypropylene tape.

Occurrence and backtracking of #microplastic mass loads including tire wear particles in northern Atlantic #air

Few studies report the occurrence of microplastics (MP), including tire wear particles (TWP) in the marine #atmosphere, and little data is available regarding their size or sources. Here we present active air sampling devices (low- and high-volume samplers) for the evaluation of composition and MP mass loads in the marine #atmosphere. Air was sampled during a research cruise along the Norwegian coast up to Bear Island. Samples were analyzed with pyrolysis-gas chromatography-mass spectrometry, generating a mass-based data set for MP in the marine atmosphere. Here we show the ubiquity of MP, even in remote Arctic areas with concentrations up to 37.5 ng m−3. Cluster of #polyethylene terephthalate (max. 1.5 ng m−3) were universally present. TWP (max. 35 ng m−3) and cluster of #polystyrene, #polypropylene, and #polyurethane (max. 1.1 ng m−3) were also detected. Atmospheric transport and dispersion models, suggested the introduction of MP into the marine atmosphere equally from sea- and land-based emissions, transforming the ocean from a #sink into a #source for MP.

https://www.nature.com/articles/s41467-023-39340-5#Abs1

#Nurdles: The Worst #ToxicWaste You’ve Probably Never Heard Of

Billions of these tiny #plastic pellets are floating in the ocean, causing as much damage as oil spills, yet they are still not classified as hazardous

by Karen McVeigh

"Nurdles, the colloquial term for 'pre-production #plastic pellets', are the little-known building block for all our plastic products. The tiny beads can be made of #polyethylene, #polypropylene, #polystyrene, polyvinyl chloride (#PVC) and other plastics. Released into the environment from plastic plants or when shipped around the world as raw material to factories, they will sink or float, depending on the density of the pellets and if they are in freshwater or saltwater.

"They are often mistaken for food by seabirds, fish and other wildlife. In the environment, they fragment into nanoparticles whose hazards are more complex. They are the second-largest source of #micropollutants in the ocean, by weight, after tyre dust. An astounding 230,000 tonnes of nurdles end up in oceans every year."

#PlasticPollution #Micrplastics

Read more: https://getpocket.com/explore/item/nurdles-the-worst-toxic-waste-you-ve-probably-never-heard-of?utm_source=pocket-newtab

@DokterHuis @repo @Katrien Dolce Gusto capsules zijn gemaakt van #polypropylene. Er zitten ook nog wat andere materialen in dit ingenieuze filtertje. Nespresso is puur aluminium. Niks andere materialen en daarom makkelijker te recycleren.

Used Facemasks Turned into Rapid Antigen Tests with Injection Molding

Here's a little eye-opener for you: next time you're taking a walk, cast your eyes to the ground for a bit and see how far you can go without spotting a carelessly discarded face mask. In our experience, it's no more than a block or two, especially if you live near a school. Masks and other disposal artifacts of the COVID-19 pandemic have turned into a menace, and uncounted billions of the things will be clogging up landfills, waterways, and byways for decades to come.

Unless they can be recycled into something useful, of course, like the plastic cases used for rapid antigen tests. This comes to us by way of [Ric Real] from the Design and Manufacturing Futures lab at the University of Bristol in the UK. If any of this sounds or looks familiar, refer back to October when the same team presented a method for turning old masks into 3D printer filament. The current work is an extension of that, but feeds the polypropylene pellets recovered from the old masks into a desktop injection molding machine.

The injection molding machine is fitted with 3D-printed molds for the shells of lateral flow devices (LFD) used for COVID-19 rapid antigen testing. The mold tooling was designed in Fusion 360 and printed on an Elegoo Mars MSLA printer using a high-strength, temperature-resistant resin. The molds stood up to the manual injection molding process pretty well, making good-quality parts in the familiar blue and white colors of the starting material. It's obviously a proof of concept, but it's good to see someone putting some thought into what we can do with the megatonnes of plastic waste generated by the pandemic response.

#greenhacks #covid19 #injectionmolding #mask #mold #polypropylene #ppe #rapidprototyping #sla #tooling