From Simple English Wikipedia, the free encyclopedia
Cork
stoppers
for wine bottles
Varnished cork tiles can be used for
flooring
, as a substitute for
linoleum
or
tiles
.
Simple cork
Cork
is a material that is harvested for commercial use primarily from the
bark
of the
Cork Oak
tree.
As the cork is harvested
.
Portugal
produces 50% of cork worldwide.
[1]
Cork is made up of
suberin
, a hydrophobic substance.
[2]
In general, cork is made up of
suberin
(average of about 40%),
lignin
(22%),
polysaccharides
(
cellulose
and
hemicellulose
) (18%), extractables (15%) and others.
[3]
Cork's
elasticity
together with its near-
impermeability
makes it suitable as a material for
bottle
stoppers, especially for wine bottles.
[4]
Cork stoppers represent about 60% of all cork based production. Cork's low
density
makes it a suitable material for
fishing
floats
and
buoys
, as well as handles for
fishing rods
(as an alternative to
neoprene
). Cork is also used in the manufacture of musical instruments, particularly
woodwind instruments
, where it is used to fasten together different segments of the instrument and make the seams airtight.
Since cork has suberin in its cell walls, this makes the cells consist of sealed elements. And having sealed elements make it greater for acoustic insulation and even thermal insulation. Sealed elements are capable of trapping and absorbing sound. In short, suberin is mostly responsible for noise reduction! Also, lignin is another constituent of cork. It makes up about 22% of cork. One study says that it’s also associated with soundproofing and thermal insulation!
[5]
The cork industry is generally regarded as environmentally friendly. The
sustainability
of its production and the easy
recycling
of cork products and by-products are two of its most distinctive aspects.
Cork demand has increased due to a larger proportion of
wine
being sealed with cork rather than being sold in bulk. Top quality corks are quite expensive, so many cheaper brands have switched to lower quality cork, synthetic
plastic
stoppers,
screwcaps
, or other closures.
- ↑
http://www.pressedforwine.com/equipment/corks.shtml
- ↑
Portugal, Fullsix.
"What is Cork"
.
Amorim Cork Composites
. Retrieved
2021-06-15
.
- ↑
Duarte, Ana Paula; Bordado, Joao Carlos (2015).
"Cork ? A Renewable Raw Material: Forecast of Industrial Potential and Development Priorities"
.
Frontiers in Materials
.
2
: 2.
Bibcode
:
2015FrMat...2....2D
.
doi
:
10.3389/fmats.2015.00002
.
ISSN
2296-8016
.
Text was copied from this source, which is available under a
Creative Commons Attribution 4.0 International License
.
- ↑
"The rationale behind cork properties: A review of structure and chemistry :: BioResources"
.
bioresources.cnr.ncsu.edu
. Retrieved
2021-06-15
.
- ↑
"Cork Soundproofing and Sound Absorption"
. Retrieved
2021-06-15
.
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permanent dead link
]