much fun was had, sand was heated, plastic got fused
Friday, January 15, 2021
Plastic film, which provides 39 percent of all plastic packaging, is a thin-gauge packaging used as a bag or wrap. Examples include plastic grocery sacks, trash bags, dry cleaning garment bags and plastic or stretch wrap. Plastic film is less than 10 mils thick, averaging 0.7 mils to 1.5 mils. A mil is 0.00l inch.
Most plastic trash bags are less than one mil thick.
Almost 40% of plastic produced is film
Recycling plastic film is difficult because the manufacturing process uses diverse resins and colors. Most bags, sacks and shrink wrap are made from low-density polyethylene (LDPE), linear LDPE or high-density polyethylene (HDPE). Polypropylene and polyvinyl chloride (PVC) also are used.
Additionally, many films blend or co-extrude two or more resins. Individual product characteristics may create remanufacturing problems. For instance, stretch wrap requires a "tackifier" so that it can cling, yet this quality is not desired in a bag.
Because plastic film does not degrade, degradable plastics are a proposed substitute. However, "degradable" bags will degrade slowly, if at all, in a modern landfill. As a result, a Florida requirement that plastic bags be degradable was repealed.
Oct 22, 2020
Tuesday, September 1, 2020
Saturday, March 14, 2020
Does the lotus unfold on its own
Or is intervention a necessity?
I came here to develop a technique to create useful, functional sculptures from ubiquitous plastic waste .
Perhaps I bite off more than I can chew. But grand problems may require grand solutions.
My hypothesis is that most of the plastic waste that is thermo plastic as opposed to thermo setting. Which means that it will soften fuse and melt under heat. ( thermosetting plastic is more like a two part epoxy, and can't be remelted).
So, with a bit of heat <275°C and pressure we can form laminated sheets of plastic hdpe,ldpe,pete, PVC and a few others which comprise the bulk of ocean plastic as well as " recycled " plastic.
Instead of sorting these different polymers and worrying about contamination, clean them a bit, and then heat, press and form them into thick continuous sheets.
These forms will be anywhere from 20-100cm thick, the shape of which closely resembles a hull of a ship.
Instead of being linear, this hull arcs around to form a torus (donut).
There is a drainage pipe running through the circumference (nts).
It is back filled with soil ,silt and organic matter which acts as a growing medium.
Inside the torus, is suspended three more floating mats of soil, semi submerged in a fresh water situation, these areas can grow rice and other water loving plants.
Although it has agricultural, aquacultural and seasteading applications, my main objective is to provide wildlife habitat.
Although, that may not pay the bills.
a dome is constructed over the inside.
Tuesday, February 4, 2020
Does this work?
can i just insert ?
or is #metoo coming out?
Preview didn't show
on to the next thought.
It's a beautiful ride,
certain realities bubble ,
bubble brings me to the ring that will surround and create a floating landmass
If there was only a few designs
usually the materials drive the design
at present, I am in an area that lacks basic municipal services and plastic waste accumulates, the majority of which is raked into piles , and burned.
So, i gets to thinking, if we could collect and sort into general categories; organic, plastic, trash etc.with a minimum amount of effort, ( lazy man here and labor is happy) through pressure and heat create different compositions ,
even co-mingled plastics will fuse into this slightly less dense than water material.
i want to take the negative attributes of this material, namely, long lasting , malleable and ubiquitous .
That's the mf trifecta neighbor
this material can be extruded in a continuous feed scenario. I am sounding like a wackadoodle now
But anyway now there is a ring
provides a container
from this rim hangs the land mass
on the surface, bioconstruction of lattice dome
build a working scale model.
the profile is tbd
so many different scenarios tumble in
lets get as simple as possible
works in progress, the Publish tab stares back at me, what if.