Topic Tag: beach plastics
3D printing
alternative
beams
beyondplastic
bicycle
bioplastic
build
building
business
CAD
capacity
cleaning
community
compression
construction
costs
design
dwg
dxf
education
electronics
event
extruder
extrusion
filament
files
fumes
funding
HDPE
Help
human powered
injection
kit
lasercut
LDPE
Machine
machines
material
mold
motor
mould
new
ocean-plastic
output
PET
philippines
phonebloks
PID
plastic
plastic bags
polystyrene
PP
precious plastic
preparation
product
productivity
products
project
recycle
recycling
research
rpm
safety
school
share creation
sheet press
shredder
sorting
start
story hopper
temperature
torque
toxicity
translation
types
v4
wiring
workshop
workspace
xe nâng
Viewing topic 1 (of 1 total)
Hi everyone, over here in Taranaki, New Zealand we have been running a youth project called Trashformers through the not-for-profit group Upcycle Taranaki. We have been collecting beach plastics and new milk bottle lids (both HDPE) and creating different shapes and sizes out of the 2 types of HDPE. Then we have been testing to see if degraded beach plastic is strong enough to use in products (rather than collecting it and putting it into landfill!).
Hypothesis:
Degraded Beach Clean up plastics #2 are as strong as Newer HDPE Plastics when melted and moulded into a small block and strength tested.
Summary of results:
- Compression test shows plastic cylinders are stronger than concrete. Insignificant difference between degraded and new cylinders. MPa readings between 23.5 and 27.5.
- Tensile strength showed a slightly higher median MPa readings of 28.59 and 27.56 for degraded and new respectively – statistically insignificant.
- Degraded plastics are more squishy and flexible. Our samples failed the expected elongation test (could be due to inconsistencies in the extruding process.
- Density of both samples are very similar and <1 (floats)
-
- Topic
- Voices
- Freshness
-
- 2
Viewing topic 1 (of 1 total)