Story of Rubber

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Raw material of the gum is created by rubber.  And it is a material that made of  combining gum and rubber. Lateks is a raw material and it is again created by petrol  and alcohol .

The plastic raw metarial rubber gained it’s value right after the process of Charles Goodyear’s hardening with sulphur and also with the contrubitions of the French scientsits in South America in 1736. So rubber took it’s value in Trade.

This method of the Charless Goodyear  has been improved in time. Especially by increasing  the speed of  dusting with sulphur  and also adding some chemicals materials in order to stand for getting breaked.

Rubber (tyre) at first; created as the combine of  sulphur and rubber materials.But after it gainedso much importance and  then people add some assorted chemicals in it and mix them together. Finally it became something better. On the other hand  with mixing colour material  they created the rubber in diferent colours.For being endurable against the effect of the weather, inside the rubber , the people also added, some assorted salts, amines and phenols that are made of plastic and rubber. These are created for supplying amorf carbon  and softness inside the rubber and by means of this  , in our day ; there are so many diferent technological rubbers created and some assorted parts can also be created from these rubbers.

Some special aimed rubbers are used in making the automobile tyres,höse and machine straps that requires  high pressure and at the same time  endurance . On the other hand  the battens  that are also  being used in cutting and plastering plates are so everlasting and elastical  and they can be produced with the high quality.

Rubber is the most used compound of the gum and is is never used alone. Generally is consist of 30/50 % Rubber.

Natural Rubber (NR)

Natural Rubber is produced from Rubber Tree that is called Hevea brasiliensis.

Natural Rubber composes of ;

% 30-40 rubber (cis-1,4 polyisoprene),

%2 resin,

% 60-65 water ,

% 2-5 lipid ve protein

Natural Rubber is the raw material of the all kind of stuff such as hoses,lateks products, fan band, gum cylinder  gum gloves and etc...

Car tyre and Shoe sectors are the most widespread fields .

Synthetic Rubbers

Synthetic rubbers are the most used components in the gum compounds.

Styrene Butadiene Rubber (SBR):

Styrene and Butadiene is produced with cold type formula in a continuous system. It is a copolymer created with  Emulsion  Polymerisation and includes %22,5 - %24,5 bounded Stryene and it is used with general intent. Also it has got the resistance to high temperature, oil and the resolvents. In order to improve the physical features, it is necessary to add carbon black and the other charging materials on it.

Styrene butadiene rubber is used in making of a car tyre, surrogate band , hose, shoe ground , mechanic stuff, auto mat.

Butyl Rubber (IIR): It has got a tight structure. Flexibility is low. Deformation is low  and permeability as well. It’s shape supplies crystallization in distention. It needs isopren groups for across connection, but it’s shape is  inerttir.

It is used in the fields of low air permeability, such as  inner gum and roof covering and also in the fields of  applications that requires resistance to the outside conditions.

Polybutadiene (BR):

Turning feature around the double band, gathering itself in a short time, and it  requires reinforcement  because  the groups in open side cause crystallization. It supplies the reactivition of the double bands.

Very good at auto back rubber. In order to get the best results it is used by comparing  with the other kind of rubbers. It is generally used in Auto Sector.

Ethylene Propylene (EPDM):

It is saturated shaped,briskness is low and time for gathering itself is  long. There can be  a unsaturated thermonomer fot the across connection.

It is used in the production of good ageing, electric, the cable that requires resistance against the outer circumstances, radiator hose, profile.

Nitrile Rubber (NBR):

Generally consist of % 25–40 acrylonitrile. It has limited it’s briskness with hydrogen band. The groups in the open field prevents the crystallizations.C=N (acrylonitrile)  raises the resistance against oil.

It is generally used  for the products such as hose,gasket,carpet,flexible fuel and fuel warehouses that requires oil and fuel resistance.

Polyurethane Rubber (AU):

It has got a shape which has an endless variations. It looks like sponge when water and CO2 are detached. It’s shape gives oil and fuel resistance.But it hydrolysises.It’s  briskness is middle degreed.It can also reinforce itself.

It is being used in charging discs that requires oil and abrasion resistance, gasket and carpets etc...

Neopren Rubber (EU):

Because of  generally 1.4 trans chlorine’s fixer affect, double bands are not re-active. Vulcanization can be  ready by adding 1.4. Chlorine oil makes a positive impact on oil and flaming. It’s route resembles to Natural Rubber in the way of it’s activity and briskness, but it is crystallize and this  makes a negative impact  on low temperature features.

Except auto tyre is looks like a natural rubber. It is used  in the places that requires fields,ozone, air, oil and fuel resistance. It’s  exercise field is limited  because it’s price is expensive  and it has  bad low temperature resistance.

Silicone Rubbers (Si):

Because of  O-Si-O skeleton , briskness is high. The power between the chains are so low.When stretched it does not crystallizate. They are so decisive.

Basicly used in cable and impreviousness works. With their inert features they also can be used in medical applications.

Polyacrylates (ACM):

Because of their  cross bounded shape, their brisknes is  %5 lower. They do not crystallizate. As usual they are inert.

It has got a limited using field just like  gaskets that has the resistance against heat and carpets.

Floroelastormerler (FPM):

C-F groups has got good oil and fuel resistance, good heat resistance and gives low blazing-flaming up featureWhen tightened, it gets crystallize and it’s low heat flexibility is not good .

It is used in the expensive  places  that requires high performance. For example: Special Gasket, Band, Hose, Military and Space Applications.

Gum compound is prepared in the compound machines and mixers. Different formulas are used for the products that will be produced. These formulas are evaluated elaborately.