Polymers,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1510 - 1510
Published: May 27, 2024
Additive
manufacturing
(AM)
has
revolutionised
the
industry,
offering
versatile
capabilities
for
creating
complex
geometries
directly
from
a
digital
design.
Among
various
3D
printing
methods
polymers,
vat
photopolymerisation
combines
photochemistry
and
printing.
Despite
fact
that
single-epoxy
been
explored,
fabrication
of
multi-material
bioderived
epoxy
thermosets
remains
unexplored.
This
study
introduces
feasibility
potential
by
means
dual-vat
Digital
Light
Processing
(DLP)
technology,
focusing
on
resins
such
as
ELO
(epoxidized
linseed
oil)
DGEVA
(vanillin
alcohol
diglycidyl
ether).
By
integrating
different
materials
with
mechanical
properties
into
one
sample,
this
approach
enhances
sustainability
offers
versatility
applications.
Through
experimental
characterisation,
including
thermal
analysis,
demonstrates
ability
to
produce
structures
composed
tailored
shapes
change
demand.
The
findings
underscore
promising
technology
DLP
applied
sustainable
monomers,
allowing
material
production
structure
fabrication.
Journal of Composites Science,
Journal Year:
2024,
Volume and Issue:
8(9), P. 370 - 370
Published: Sept. 20, 2024
Reliable
ballistic
armor
systems
are
crucial
to
ensure
the
safety
of
humans
and
vehicles.
Typically,
these
constructed
from
various
materials
like
fiber-reinforced
polymer
composites,
which
utilized
for
a
favorable
weight
protection
ratio.
In
particular,
there
has
been
quest
eco-friendly
that
offer
both
strong
mechanical
properties
sustainable
advantages.
The
present
work
conducted
analysis
epoxy
matrix
composites
using
raffia
(Raphia
vinifera)
fibers
Amazon
region
as
reinforcement.
experiments
investigated
limit
residual
velocities
with
10,
20,
30
vol%
raffia.
experimental
density
was
lower
than
epoxy.
Fractured
surfaces
were
examined
by
scanning
electron
microscopy
(SEM)
reveal
failure
mechanism.
results
showed
10
fiber
fabric
had
highest
energy
absorption
(168.91
J)
velocity
(201.43
m/s).
ones
displayed
higher
level
physical
integrity.
SEM
micrographs
demonstrated
mechanisms
associated
delamination
breakage.
There
small
variation
in
between
reinforced
raffia,
826.66,
829.75,
820.44
m/s,
respectively.
The
traditional
phenolic
resin
is
prepared
by
the
reaction
of
petroleum-based
phenol
and
carcinogenic
formaldehyde,
which
causes
serious
harm.
As
a
renewable
compound
with
abundant
reserves
in
nature,
lignin
as
potential
sustainable
substitute
for
phenol-formaldehyde
lignin-phenol-formaldehyde
adhesives
have
attracted
increasing
attention
production
plywood.
However,
how
to
exploit
environmentally
friendly
fully
lignin-based
remains
challenge.
Here,
formaldehyde-free
adhesive
was
synthesized
using
facile
strategy
cross-linking
glutaraldehyde.
structural
characterization
confirmed
that
successfully
reacted
aldehydes
promoted
nucleophilic
addition
during
synthesis
glutaraldehyde
cross-linked
adhesives.
plywood
exhibited
excellent
adhesion
performance,
dry
bonding
strength
reached
2.66
0.93
MPa,
respectively,
indicating
comparable
competitiveness
compared
formaldehyde
adhesive.
work
demonstrates
synthesize
enables
its
utilization
promising
alternatives
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
The
increasing
demand
for
sustainable
materials
has
propelled
research
into
biomass-derived
adhesives
as
eco-friendly
alternatives
to
traditional
synthetic
options.
This
chapter
investigates
the
enhancement
of
physicochemical
and
thermomechanical
properties
bio-based
adhesives,
highlighting
their
applications
across
diverse
industries,
including
medical
devices,
construction,
automotive,
wood
wood-based
panels,
packaging.
Bio-adhesives,
sourced
from
renewable
such
lignin,
tannins,
proteins,
offer
advantages
like
biodegradability
non-toxicity.
However,
challenges
low
water
resistance,
bonding
strength,
thermal
stability
persist.
Recent
advancements,
incorporation
nanofillers
cross-linking
agents,
have
shown
promise
in
overcoming
these
limitations,
significantly
improving
adhesive
performance.
In
applications,
bio-adhesives
must
be
biocompatible
biodegradable
facilitate
wound
healing
without
harmful
effects.
construction
automotive
sectors,
they
provide
solutions
lightweight
materials,
enhancing
structural
integrity
under
various
environmental
conditions.
packaging
industry
is
also
benefiting
derived
proteins
whey
casein,
which
improve
barrier
while
remaining
renewable.
Despite
potential,
commercialization
faces
higher
production
costs
variable
Ongoing
aims
address
issues
through
modifications
development
standardized
testing
methods.
underscores
transformative
potential
emphasizing
role
promoting
sustainability
meeting
rigorous
demands
applications.
Ultimately,
can
contribute
a
more
future
material
science.
Materials,
Journal Year:
2025,
Volume and Issue:
18(5), P. 1144 - 1144
Published: March 4, 2025
Developing
eco-friendly,
high-performance
adhesives
is
crucial
for
sustainable
industrial
applications
but
remains
a
significant
challenge.
Herein,
synergistic
strategy
combining
core-shell
hybridization
and
borate
chemistry
was
employed
to
fabricate
multifunctional
soy
protein
(SPI)
adhesive
with
excellent
adhesion.
Specifically,
reactive
hybrid
(POSS-U)
synthesized
via
free-radical
polymerization
using
octavinyl-POSS
as
the
core
urushiol
(U)
shell.
Sodium
(SB)
then
added
crosslinker,
along
POSS-U
SPI,
prepare
SPI/POSS-U/SB
adhesive.
The
exhibited
100%
increase
in
dry
shear
strength
(2.46
MPa)
wet
of
0.74
MPa,
meeting
indoor
application
standards.
Due
thermal
shielding
char
formation
POSS
SB,
peak
heat
release
rate
modified
reduced
by
25.4%,
revealing
flame
retardancy.
Additionally,
remained
mold-free
144
h
due
antifungal
properties
boron.
This
work
provides
an
innovative
approach
enhancing
protein-based
contributes
advancement
composite
materials.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
Abstract
Most
electronic
product
packaging
materials
are
made
of
plastic,
a
petroleum‐based
material
with
limited
heat
dissipation
capabilities,
restricting
its
suitability
for
heat‐intensive
products.
Wood‐based
composites
have
gained
widespread
usage
due
to
their
environmental
friendliness
and
cost‐effectiveness.
However,
the
low
thermal
conductivity
restricts
application
in
requiring
efficient
dissipation.
Here,
high‐strength
wood‐based
composite
excellent
antibacterial
property
(WBC/ZIF‐67/8)
is
constructed
through
self‐bonding
technology.
The
WBC/ZIF‐67/8
demonstrates
exceptional
mechanical
properties
tensile
flexural
strengths
66.87
86.33
MPa,
respectively.
Importantly,
it
exhibits
1.01
W
mK
−1
,
significantly
surpassing
that
densified
wood.
This
superior
performance
attributed
core‐shell
structure
formed
situ
growth
ZIF‐67/8
crystals
on
wood
fibers.
Although
fibers
themselves
exhibit
relatively
conductivity,
this
enables
effective
conduction
diffusion
at
interface
between
high
Simultaneously,
introduction
enhanced
anti‐mildew
composite.
These
improvements
capability
pave
way
durable
sustainable
packaging.
