ever since Humpty the egg first fell off his wall people have been dreaming up
ways to put him together again this led to the invention of adhesiv such as
tapes glues and a wide range of specialized polymers none of which did
very much for our friend at the base of the wall then one of the King's Men
spoke up and said why can't other things just heal themselves the same way that
we do this is where the invention of self or autonomic healing materials
comes in which mimic the properties of biological systems like our own when
damage is inflicted to an autonomic healing compound there is first a near
immediate trigger response that works to prevent the loss of further material
somewhat similar to blood clotting that step is followed shortly by transport of
the materials which are necessary for the third process to take place the
actual healing this is done in a variety of different ways and across different
time frames but there are a couple of basic design outlines which are most
frequently used the the first method aptly named the hollow tube approach
works by utilizing a network of tiny glass or Fiber capillaries that are
often used already as a way of reinforcing the ttile strength of
plastic polymers some of these microchannels are then filled with
either a highly attractive bonding monomer or a slower working hardening
substance both of which are dispersed if the healing material receives damage
such as a cut or a break this will cause them to mix together first allowing the
monomers to create a bond between the severed sections with the hardening
agent causing it to solidify afterward since the two reacting agents needed to
create the healing are continually replenished from external sources this
type of application tends to Trend towards static structural possibilities
the second and perhaps more commonly used design is known as the microcapsule
healing method it is similar in theory to the previous model but instead of
using tiny channels to deliver the bonding monomers they are encapsulated
in a substance which is designed to rupture whenever damage is inflicted
that activates the trigger response not unlike when a trigger response causes
your significant other to release some hostility that they've been
encapsulating anyways when these capsules do happen to become ruptured
the monomers inside the mix with a catalyst that is freely distributed in
the healing compound around them allowing for the polymerization bond to
take place without the addition of extra heat or influence while these designs
are more autonomous the lack of an externally fed delivery system means
they are less efficient at repairing large damage and will deplete their
embedded monomers much more quickly through use leading them to be looked at
more for their protective qualities likely it is this type of material that
would be used on any articles that you already own that employ self-healing
technology such as the deflex series of phones from LG where the function is
purely aesthetic and if you break the phone in half it's not just going to
whip itself back together it's just to keep your your phone looking shiny but
there is potential for even cooler stuff in the future and this design model has
also been implemented using conductive materials and monomers as well so when
Engineers design an electrical circuit that could like repair itself after
being separate I mean think about the applications of this that this could
have on the durability and lifespan of electronic components pretty cool stuff
I mean it sounds great let's just start making everything out of this stuff so
we can go ahead and get on with uh abusing our devices the way that many of
us are habitually want to do as if any of these videos were ever that simple
while many materials are labeled as self-healing often times they fall short
of true autonomy as they require the use of excess resins during manufacturing
and light or heat conditions that need to be applied manually or through the
use of a complimenting device So currently these systems are very limited
in terms of the amount and type of damage they can repair due to the eventual depletion of either the
compound deliver dely channels or the embedded monomer capsules and Catalyst
that I mentioned before so for the time being it might be best if you refrain
from doing your best Jason vor's impression and acting like your phone is
a counselor at Camp Crystal Lake unless of course you've got the means to
replace it at a moment's notice when you're machete ends up slicing it to
bits so while we may never be able to do anything for that pile of soup that was
once Humpty at least in the meantime we can keep your cell phone from looking
dumpy well we certainly acquired some knowledge today but if you're hungry for
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