nitrocellulose 音标拼音: [n
, ɑɪtros'ɛljəl
, os]
n . 硝化纤维
硝化纤维
nitrocellulose n 1 :
a nitric acid ester ;
used in lacquers and explosives [
synonym :
{
cellulose nitrate }, {
nitrocellulose }, {
guncotton },
{
nitrocotton }]
Gun \
Gun \ (
g [
u ^]
n ),
n . [
OE .
gonne ,
gunne ;
of uncertain origin ;
cf .
Ir .,
Gael ., &
LL .
gunna ,
W .
gum ;
possibly (
like cannon )
fr .
L .
canna reed ,
tube ;
or abbreviated fr .
OF .
mangonnel ,
E .
mangonel ,
a machine for hurling stones .]
1 .
A weapon which throws or propels a missile to a distance ;
any firearm or instrument for throwing projectiles ,
consisting of a tube or barrel closed at one end ,
in which the projectile is placed ,
with an explosive charge (
such as guncotton or gunpowder )
behind ,
which is ignited by various means .
Pistols ,
rifles ,
carbines ,
muskets ,
and fowling pieces are smaller guns ,
for hand use ,
and are called {
small arms }.
Larger guns are called {
cannon },
{
ordnance }, {
fieldpieces }, {
carronades }, {
howitzers },
etc .
See these terms in the Vocabulary .
[
1913 Webster ]
As swift as a pellet out of a gunne When fire is in the powder runne . --
Chaucer .
[
1913 Webster ]
The word gun was in use in England for an engine to cast a thing from a man long before there was any gunpowder found out . --
Selden .
[
1913 Webster ]
2 . (
Mil .)
A piece of heavy ordnance ;
in a restricted sense ,
a cannon .
[
1913 Webster ]
3 .
pl . (
Naut .)
Violent blasts of wind .
[
1913 Webster ]
Note :
Guns are classified ,
according to their construction or manner of loading as {
rifled }
or {
smoothbore },
{
breech -
loading }
or {
muzzle -
loading }, {
cast }
or {
built -
up guns };
or according to their use ,
as {
field },
{
mountain }, {
prairie }, {
seacoast },
and {
siege guns }.
[
1913 Webster ]
{
Armstrong gun },
a wrought iron breech -
loading cannon named after its English inventor ,
Sir William Armstrong .
{
Big gun }
or {
Great gun },
a piece of heavy ordnance ;
hence (
Fig .),
a person superior in any way ;
as ,
bring in the big guns to tackle the problem .
{
Gun barrel },
the barrel or tube of a gun .
{
Gun carriage },
the carriage on which a gun is mounted or moved .
{
Gun cotton } (
Chem .),
a general name for a series of explosive nitric ethers of cellulose ,
obtained by steeping cotton in nitric and sulphuric acids .
Although there are formed substances containing nitric acid radicals ,
yet the results exactly resemble ordinary cotton in appearance .
It burns without ash ,
with explosion if confined ,
but quietly and harmlessly if free and open ,
and in small quantity .
Specifically ,
the lower nitrates of cellulose which are insoluble in ether and alcohol in distinction from the highest (
pyroxylin )
which is soluble .
See {
Pyroxylin },
and cf . {
Xyloidin }.
The gun cottons are used for blasting and somewhat in gunnery :
for making celluloid when compounded with camphor ;
and the soluble variety (
pyroxylin )
for making collodion .
See {
Celluloid },
and {
Collodion }.
Gun cotton is frequenty but improperly called {
nitrocellulose }.
It is not a nitro compound ,
but an ester of nitric acid .
{
Gun deck }.
See under {
Deck }.
{
Gun fire },
the time at which the morning or the evening gun is fired .
{
Gun metal },
a bronze ,
ordinarily composed of nine parts of copper and one of tin ,
used for cannon ,
etc .
The name is also given to certain strong mixtures of cast iron .
{
Gun port } (
Naut .),
an opening in a ship through which a cannon '
s muzzle is run out for firing .
{
Gun tackle } (
Naut .),
the blocks and pulleys affixed to the side of a ship ,
by which a gun carriage is run to and from the gun port .
{
Gun tackle purchase } (
Naut .),
a tackle composed of two single blocks and a fall . --
Totten .
{
Krupp gun },
a wrought steel breech -
loading cannon ,
named after its German inventor ,
Herr Krupp .
{
Machine gun },
a breech -
loading gun or a group of such guns ,
mounted on a carriage or other holder ,
and having a reservoir containing cartridges which are loaded into the gun or guns and fired in rapid succession .
In earlier models ,
such as the {
Gatling gun },
the cartridges were loaded by machinery operated by turning a crank .
In modern versions the loading of cartidges is accomplished by levers operated by the recoil of the explosion driving the bullet ,
or by the pressure of gas within the barrel .
Several hundred shots can be fired in a minute by such weapons ,
with accurate aim .
The {
Gatling gun }, {
Gardner gun }, {
Hotchkiss gun },
and {
Nordenfelt gun },
named for their inventors ,
and the French {
mitrailleuse },
are machine guns .
{
To blow great guns } (
Naut .),
to blow a gale .
See {
Gun },
n .,
3 .
[
1913 Webster PJC ]
Nitrocellulose \
Ni `
tro *
cel "
lu *
lose `\,
n . [
Nitro -
cellulose .]
(
Chem .)
See {
Gun cotton },
under {
Gun }.
[
1913 Webster ]
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Nitrocellulose - Wikipedia Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, pyroxylin and flash string, depending on form) is a highly flammable compound formed by nitrating cellulose through exposure to a mixture of nitric acid and sulfuric acid
Nitrocellulose | Explosive, Fire-Retardant Coating Uses | Britannica Nitrocellulose, a mixture of nitric esters of cellulose, and a highly flammable compound that is the main ingredient of modern gunpowder and is also employed in certain lacquers and paints
Everything You Need to Know About Nitrocellulose: From Manufacturing to . . . Nitrocellulose is a fascinating material that has played a pivotal role in various industries for over a century Derived from cellulose, nitrocellulose is a highly versatile compound used in adhesives, coatings, explosives, and even medical applications
What Is Nitrocellulose? Chemistry, Manufacturing, and Uses Nitrocellulose is a versatile synthetic polymer derived from cellulose, the most abundant organic polymer on Earth Known as cellulose nitrate or guncotton, its creation involves a straightforward chemical modification of natural fibers
Structure and properties of nitrocellulose: approaching 200 years of . . . This review brings together almost 200 years of research on the structure of nitrocellulose to give an overview covering its production from cellulose through to application in composite materials such as propellants or biomedical tests
Is Nitrocellulose Toxic or Just a Fire Hazard? - ScienceInsights Nitrocellulose is classified primarily as a fire and explosion hazard rather than a health hazard It ignites easily, burns rapidly, and can self-ignite if stored improperly
Nitrocellulose Group The Nitrocellulose Group produce and supply industrial nitrocellulose in both Dense Form and Fibrous Form
Comprehensive Guide to the Manufacturing Process of Nitrocellulose . . . This guide delves into the detailed manufacturing process of nitrocellulose, covering every stage from raw material preparation to its final application Overview of Nitrocellulose Manufacturing
Nitrocellulose Guide: Types, NC-PU Hybrid Hardeners What is Nitrocellulose? Nitrocellulose (NC), also called cellulose nitrate, is an organic polymer produced by the nitration of cellulose with a mixed acid of nitric acid (HNO 3) and sulfuric acid (H 2 SO 4)
Nitrocellulose - Simple English Wikipedia, the free encyclopedia Nitrocellulose (also: cellulose nitrate, flash paper) catches fire quickly It is formed by nitrating cellulose through exposure to nitric acid or another powerful nitrating agent