Polymers,
Journal Year:
2025,
Volume and Issue:
17(5), P. 648 - 648
Published: Feb. 28, 2025
In
modern
engineering
applications,
the
use
of
sustainable
materials
and
eco-friendly
methods
has
become
increasingly
important.
Wood
joints,
especially
those
strengthened
with
bio-adhesive,
have
attracted
considerable
attention
due
to
their
inherent
environmental
benefits
desirable
mechanical
properties.
Compared
traditional
joining
methods,
adhesive
joints
offer
unique
advantages
such
as
improved
load
distribution,
reduced
stress
concentration,
enhanced
aesthetic
appeal.
This
study
aims
enhance
delamination
resistance
in
wooden
using
a
novel
method
involving
reinforced
high-toughness
resin
on
surfaces.
Additionally,
hybrid
substrate
approach
applies
tough
layer
outer
plies
densified
wood
core
greater
fiber
direction
strength.
Normal,
toughened,
single-lap
joint
specimens
were
analyzed
through
both
experimental
numerical
under
various
loading
conditions,
including
quasi-static
intermediate
rates.
The
proposed
involved
bio-adhesive
penetration
into
substrate,
forming
surface
zone.
experimentally
validated
results
show
significant
improvement
strength,
exhibiting
an
approximate
2.8-fold
increase
for
toughened
compared
reference
intermediate-rate
conditions.
Furthermore,
absorbed
energy
increased
by
substantial
factor
up
4.5
times
same
fracture
surfaces
analysis
revealed
that
toughening
changed
failure
mechanism
from
breakage,
indicating
strength
was
lower
than
impact
viscoelastic
behavior
also
influenced
response
changing
displacement
rate.
resilience
load-bearing
capacity
making
them
more
suitable
dynamic
applications.
Critical Reviews in Food Science and Nutrition,
Journal Year:
2022,
Volume and Issue:
63(32), P. 11010 - 11025
Published: June 15, 2022
Packaging
ensures
the
safe
handling
and
distribution
of
fresh
processed
food
products
via
diverse
supply
chains,
has
become
an
indispensable
component
industry.
However,
rapidly
expanding
use
plastics,
especially
single-use
as
packaging
material
leads
to
inadequate
waste
management,
littering,
consequently
serious
environmental
damage,
which
predominantly
affects
marine
freshwater
sources.
Thus,
plastics
for
purposes
a
major
public
concern
hence
among
global
policymakers.
Notably,
26%
total
volume
plastic
production
is
primarily
used
packaging,
account
50%,
resulting
in
pollution
that
may
last
hundreds
years.
This
review
provides
overview
manner
molded
pulp
can
be
utilized
improve
sustainability
applications,
by
highlighting
manufacturing
processes,
signifying
characteristics
features
recyclable
pulp,
coupling
circularity
with
eco-friendly
product
packaging.
In
this
regard,
current
concepts
advocate
implementation
dynamic
sustainable
approach
using
products.
encompasses
design
consumption
packaged
products,
collection
recycling
subsequent
reuse.
ACS Applied Polymer Materials,
Journal Year:
2023,
Volume and Issue:
5(7), P. 5696 - 5706
Published: June 30, 2023
Food
packaging
is
critical
since
proper
can
extend
the
shelf
life
of
foods.
Currently,
petroleum-based
plastics,
such
as
poly(ethylene
terephthalate)
(PET),
polyethylene
(PE),
and
polypropylene
(PP),
are
commonly
used
materials,
but
they
have
led
to
a
lot
waste
environmental
pollution.
In
this
study,
previously
reported
method
was
modified
fabricate
cellulose
nanofiber
(CNF)
carboxymethyl
(CMC)
paste
make
it
more
homogeneous
less
labor-consuming,
utilized
coating
material
for
molded
pulp
(MP)
food
trays.
A
smooth
uniform
dry
CNF/CMC
with
thickness
∼200
μm
achieved
via
over-molding.
To
improve
adhesion,
chitosan
coated
on
MP
between
layers.
Uniaxial
tension,
"crush
strength"
compression,
"cross-hatch"
lap-shear
adhesion
tests
were
performed
characterize
mechanical
enhancement
by
coating.
Gurley
air
porosity
water
vapor
transmission
rate
conducted
compare
barrier
properties
against
moisture
CNF/CMC-coated
trays
uncoated
Oil
grease
resistance
testing
using
TAPPI-T559
standard
showed
that
samples
resist
much
better
than
samples.
Finally,
lidded
two
different
kinds
plastic
films:
poly(lactic
acid)
(PLA)
(PET).
Raspberries,
blueberries,
cherry
tomatoes
then
storage
testing,
where
found
helps
fruits.
Journal of Bioresources and Bioproducts,
Journal Year:
2023,
Volume and Issue:
8(4), P. 408 - 420
Published: Oct. 11, 2023
In
this
study,
the
influence
of
thermoforming
conditions
on
resulting
material
properties
was
investigated,
which
aimed
at
developing
advanced
wood-fiber-based
materials
for
replacement
fossil
plastics.
Two
bleached
softwood
pulps
were
studied,
i.e.,
northern
Kraft
pulp
(NBSK)
and
chemi-thermomechanical
(CTMP).
The
varied
between
2–100
MPa
150–200
°C,
while
pressing
sheets
500
g/m²
10
min
to
represent
thin-walled
packaging
more
closely.
As
our
results
showed,
temperature
had
a
pronounced
effect
CTMP
substrates
than
pulp.
This
explained
by
greater
abundance
lignin
hemicelluloses,
fibrillar
dimensions
fines
content
may
play
role
in
addition.
Moreover,
exhibited
an
optimum
terms
tensile
strength
intermediate
pressure.
attributed
two
counteracting
effects:
1)
Improved
fiber
adhesion
due
enhanced
densification,
2)
embrittlement
caused
loss
extensibility.
High
temperatures
likely
softened
lignin,
enabling
collapse
tighter
packing.
For
substrates,
increased
linearly
with
density.
Both
showed
reduced
wetting
elevated
pressure,
hornification
densification
effects.
Here,
again
fibers.
It
concluded
that
pressure
strongly
affected
final
material.
chemical
composition
will
distinctly
affect
their
response
thermoforming,
could
be
useful
tailoring
cellulose-based
replacements
products.
Materials,
Journal Year:
2024,
Volume and Issue:
17(2), P. 448 - 448
Published: Jan. 17, 2024
In
contemporary
engineering
practices,
the
utilization
of
sustainable
materials
and
eco-friendly
techniques
has
gained
significant
importance.
Wooden
joints,
particularly
those
created
with
polyurethan-based
bio-adhesives,
have
garnered
attention
owing
to
their
intrinsic
environmental
advantages
desirable
mechanical
properties.
comparison
conventional
joining
methods,
adhesive
joints
offer
distinct
benefits
such
as
an
enhanced
load
distribution,
reduced
stress
concentration,
improved
aesthetic
appeal.
this
study,
reference
toughened
single-lap
joint
samples
were
investigated
experimentally
numerically
under
quasi-static
loading
conditions.
The
proposed
research
methodology
involves
infusion
a
bio-adhesive
into
wooden
substrate,
reinforcing
matrix
its
surfaces.
This
innovative
approach
was
developed
explore
synergetic
effect
both
wood
bio-adhesive.
validated
results
showcase
enhancement
in
strength,
demonstrating
85%
increase
when
compared
regular
pine
substrates.
Moreover,
increased
delamination
thickness
observed
found
energy
absorption
joint.
BioResources,
Journal Year:
2022,
Volume and Issue:
17(2), P. 3810 - 3870
Published: Jan. 1, 2022
Molded
cellulosic
pulp
products
provide
eco-friendly
alternatives
to
various
petroleum-based
packaging
systems.
They
have
a
long
history
of
reliable
usage
for
such
applications
as
egg
trays
and
the
shipping
fruits.
recently
become
increasingly
used
electronics,
wine
bottles,
specialty
items.
are
especially
in
requiring
cushioning
ability,
well
when
it
is
important
match
shapes
packed
Their
main
component,
fibers
from
virgin
or
recycled
wood
fibers,
nonwood
can
reduce
society’s
dependence
on
plastics,
including
expanded
polystyrene.
However,
dewatering
molded
tends
be
slow,
subsequent
evaporation
water
energy-intensive.
The
article
reviews
strategies
increase
production
rates
lower
energy
consumption.
In
addition,
by
applying
chemical
treatments
processing
approaches,
there
opportunities
achieve
desired
end-use
properties,
grease
resistance.
New
manufacturing
strategies,
rapid
prototyping
advances
tooling,
more
efficient
form
factors
effective
future.
Fibers,
Journal Year:
2023,
Volume and Issue:
11(2), P. 15 - 15
Published: Jan. 28, 2023
Production
and
use
of
plastic
products
have
drastically
increased
during
the
past
decades
their
environmental
impacts
are
increasingly
spotlighted.
At
same
time,
coarse
wool,
a
by-product
meat
dairy
production,
goes
largely
unexploited
in
EU.
This
paper
asks
why
more
wool
is
not
used
consumer
goods,
such
as
acoustic
sound-absorbing
products,
garden
sanitary
products.
answered
through
SWOT
analysis
results
from
desktop
study
interviews
with
producers
these
made
well
policy
documents
relating
to
waste,
textiles,
plastic.
Findings
show
that
on
product
level,
many
inherent
properties
create
opportunities
for
development
sustainability
improvements
using
coarser
represents
an
opportunity
replacing
plastics
applications
innovation.
is,
however,
dependent
local
infrastructure
small-scale
enterprises,
but
such,
it
creates
value
chains,
creation,
safeguarding
heritage.
The
shift
resource
utilization
requires
systemic
change
several
levels:
Here
findings
can
incentivize
material
usage
transitions,
tools
little
employed
currently.
