asteroza + polymer   204

A more sustainable material to reinforce concrete structures - EPFL
Using polymer fibers in concrete rather than steel fibers. Same idea as using polymer rebar rather than steel rebar
UHPFRC  polymer  fiber  reinforced  concrete  composite  materials  science  construction  building  research  technology 
27 days ago by asteroza
Broadband lightweight flat lenses for long-wave infrared imaging | PNAS
Interesting, a nearly flat minilens (microlens?)array that covers visible and long wave IR. Called a MDL (multilevel diffractive lens)
optics  research  technology  visible  long  wave  IR  LWIR  thin  film  microlens  array  flat  materials  science  polymer  multilevel  diffractive  lens 
8 weeks ago by asteroza
Deakin researchers design maintenance-free bridge for Geelong park | Deakin
carbon/glass fiber hybrid polymer rebar for concrete, as an alternative to basalt fiber rebar wherever steel rebar can't be used
polymer  glass  carbon  fiber  hybrid  rebar  concrete  reinforcement  materials  science  research  technology  basalt  alternative 
july 2019 by asteroza
Fabrication of polymeric lenses using magnetic liquid molds: Applied Physics Letters: Vol 114, No 20
Effectively using a ferromagnetic-style formable liquid to make a custom mold for lens, rather than paying a bundle for a custom lens mold from tool steel.
magnetic  droplet  liquid  mold  plastic  polymer  lens  fabrication  optics  materials  science  manufacturing  research  technology 
june 2019 by asteroza
Deakin researchers develop concrete solution for recycled glass | Deakin
some types of colored glass aren't recycled due to the difficulty in cleaning it up to clear again, so being able to use it elsewhere is a plus as an alternative to high grade sand. But this is polymer resin based concrete (substituting cement) so that's a different problem...
polymer  resin  concrete  recycled  glass  powder  aggregate  materials  science  research  technology  construction 
june 2019 by asteroza
Encapsulated liquid sorbents for carbon dioxide capture | Nature Communications
Alternative to liquid CO2 sorbents for carbon capture, packing the liquid into UV hardened micro-silicone shells up contact area and ease of use.
microencapsulation  liquid  carbonate  core  polymer  silicone  shell  capsule  carbon  capture  CO2  CCS  materials  science  research  technology 
april 2019 by asteroza
Mechanoresponsive self-growing hydrogels inspired by muscle training | Science
mechanical hydrogel polymer muscles that get stronger with training/use, like real muscles
biomimicry  polymer  hydrogel  artificial  muscle  actuator 
february 2019 by asteroza
Trying to do low temperature delta heat exchangers via cheap polymer membranes
polymer  membrane  low  temperature  heat  exchanger  cooling  materials  science  research  technology 
october 2018 by asteroza
The promise of deep grooves | Argonne National Laboratory
So this is atomic layer deposition INTO a polymer rather than surface coating it, effectively using the polymer as a pattern to build up inorganic structures.
polymer  pattern  inorganic  atomic  layer  deposition  insertion  doping  materials  science  semiconductor  research  technology  3D  printing  fabbing 
october 2018 by asteroza
Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling | Science
New cheapish polymer coating to make a narrowband IR emitter that pumps through the LWIR atmospheric transmission window. So something can be cooled by exposing it to the sky.
passive  daytime  radiative  cooling  narrowband  emitter  IR  materials  science  research  technology  polymer  surface  coating  air  void  phase  inversion 
october 2018 by asteroza
Some sort of startup focusing on GMO bacteria for advanced material manufacturing
GMO  bacteria  materials  science  biology  research  technology  startup  manufacturing  bioreactor  custom  polymer 
august 2018 by asteroza
Caffeine-catalyzed gels
Using caffeine as a catalyst for producing soft polymer gels embedded with medicine
soft  polymer  gel  manufacturing  caffeine  catalyst  medicine  health  drug  delivery 
april 2018 by asteroza
Self-Deployed Space or Planetary Habitats and Extremely Large Structures
NIAC phase 1 results. NRO research related as well for deployable space telescopes. Rigidized UV cured polymer thin film bubbles for space applications. Possible flat primary mirrors/solar sails, but if they are making spheres, making curved mirror segments should be doable. If you use 6 stabilizing hoops as cut lines, can get 6 sphere segments without much waste (waste could be repurposed as additional mirror segments)
NIAC  NASA  deployable  space  telescope  primary  mirror  solar  sail  polymer  UV  cured  rigidizable  thin  film  structure  bubble 
april 2018 by asteroza
Kilometer Space Telescope (KST) | NASA
Not very specific about about how they will build the primary mirror...
NASA  NIAC  telescope  kilometer  deployable  thin  film  UV  cured  polymer  resin  bubble 
april 2018 by asteroza
Interesting deployable antenna reflector using a shape memory polymer for the reflector ribs (so sorta looks like a clam shell), and an active focus subreflector to correct and beam steer.
newspace  deployable  antenna  reflector  space  cubesat  collapsible  folding  shape  memory  polymer 
march 2018 by asteroza
Adaptive metalenses with simultaneous electrical control of focal length, astigmatism, and shift | Science Advances
Interesting thing film metalens manipulated by transparent polymer artificial muscle to fix focus/image shift/astigmatism simultaneously
materials  science  research  technology  artificial  eye  polymer  muscle  silicon  thin  film  metalens  optics  nanotechnology 
march 2018 by asteroza
One-step volumetric additive manufacturing of complex polymer structures | Science Advances
Using holographic imaging techniques (aka 3 or more lasers shining on the same spot) to solidify liquid polymers in a batch, allows faster 3D buildup
3D  printing  fabbing  printer  fabber  materials  science  research  technology  laser  solidification  liquid  polymer 
december 2017 by asteroza
Projekt: brine4power
Using active polymer electrolytes in a brine for a massive redox flow battery using former salt caverns as reservoirs
active  polymer  electrolyte  brine  redox  flow  battery  energy  storage  underground  salt  cavern  reservoir  germany 
july 2017 by asteroza
Ground state structure of high-energy-density polymeric carbon monoxide
New explosive, 5-10x TNT, so 3x+ better than HMX. If it is really metastable, and not touchy as hell like octanitrocubane...
metastable  polymer  crystal  carbon  monoxide  materials  science  research  technology  explosive  military  Delicious 
april 2017 by asteroza
Influence of Polymer Electronics on Selective Dispersion of Single-Walled Carbon...
New polymer allows dispersing metallic nanotubes, leaving behind only the semiconducting nanotubes. Might be key to increasing production of nanotubes due to ease of separation.
semiconducting  metallic  carbon  nanotube  CNT  SWNT  filter  separation  polymer  chemical  manufacturing  materials  science  research  technology  Delicious 
august 2016 by asteroza
Graphenano productos con grafeno - Baterías, Pinturas y Hormigón
Allegedly have a graphene polymer battery ready for commercialization in 2016 with 3x the storage of lithium ion.
graphene  polymer  battery  energy  storage  materials  science  research  technology  Delicious 
march 2016 by asteroza
Simultaneous covalent and noncovalent hybrid polymerizations | Science
Interesting hard/soft hybrid polymer. Allows building composite structures like a hard core with a soft jacket layer.
hybrid  hard  soft  polymer  materials  science  research  technology  biomimicry  Delicious 
february 2016 by asteroza
Additive manufacturing of polymer-derived ceramics
UV cured polymer resin with cermaic particles gets printed as a microlattice, then sintered into a pure silicon carbide microlattice, similar to ceramic foams but with 10x strength.
3D  printing  fabbing  materials  science  research  technology  silicon  oxycarbide  carbide  ceramic  microlattice  lattice  truss  octet  cubic  polymer  template  sintering  Delicious 
january 2016 by asteroza
Scalable 3D Bicontinuous Fluid Networks: Polymer Heat Exchangers Toward Artificial Organs - Roper - 2015 - Advanced Materials - Wiley Online Library
So apparently, they make a heat exchanger from an insulatiing polymer by making the walls thinner than 1 micron through a print/coat/strip methodology.
polymer  heat  exchanger  3D  printing  fabbing  materials  science  research  technology  Delicious 
october 2015 by asteroza
Cleaning of Oil Fouling with Water Enabled by Zwitterionic Polyelectrolyte Coatings: Overcoming the Imperative Challenge of Oil–Water Separation Membranes - ACS Nano (ACS Publications)
So covering a steel mesh in a weird polymer makes a decent oil\water separation membrane that can be clened just by running water through in reverse. Seems usable for ocean crude oil spill cleanup.
zwitterionic  polyelectrolyte  polymer  surface  coating  oil  separation  membrane  materials  science  research  technology  Delicious 
september 2015 by asteroza
Rapid, Puncture-Initiated Healing via Oxygen-Mediated Polymerization - ACS Macro Letters (ACS Publications)
Hole filling polymer structure that reacts with oxygen may be suitable for spaceship hull breaches by space junk, provide the rapid polymerized plug doesn't get blown out by the vacuum pressure of space.
rapid  puncture  self  healing  polymerization  oxygen  polymer  reaction  materials  science  research  technology  space  armor  defense  Delicious 
august 2015 by asteroza
Parsemus Foundation » Vasalgel Home
New alternative to vasectomies, using basically an injectable polymer plug, which has micropores too small for sperm, but large enough to pass liquid, prevent backup pressure side effects. Reversible by dissolving the plug with another injectable agent.
male  contraceptive  contraception  medicine  health  fixed  pore  polymer  Delicious 
june 2015 by asteroza
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