PROPORTIES AND USES OF BUNA-S

May 3 • General • 22158 Views • 4 Comments on PROPORTIES AND USES OF BUNA-S

PROPORTIES AND USES OF BUNA -S

  • The material was initially marketed or originated with the brand name Buna S.
  • Its name derives Bu for butadiene and Na for sodium (natrium in several languages including Latin, German and Dutch), and S for styrene

 PROPORTIES OF BUNA-S

Properties

Property

S-SBR

E-SBR

Tensile strength (MPa)1819
Elongation at tear (%)565635
Mooney viscosity (100 °C)48.051.5
Glass transition temperature (°C)-65-50
Polydispersity2.14.5

APPLICATION OF BUNA-S

  • It  is used widely in pneumatic tires in shoe heels and soles, gaskets and even chewing gum
  • . It is a commodity material which competes with natural rubber
  •  it  is extensively used in coated papers, being one of the most cost-effective resins to bind pigmented coatings.
  • It is also used in building applications, as a sealing and binding agent behind renders as an alternative to PVA,.
  • Additionally, it is used in some rubber cutting boards.

SOME IMPORTANT QUESTION

Q.1- DEFINE BUNA-S?

ANS/

  • The material was initially marketed or originated with the brand name Buna S.
  • Its name derives Bu for butadiene and Na for sodium (natrium in several languages including Latin, German and Dutch), and S for styrene.

Q.2-WHAT ARE THE PROPORTIES OF BUNA-S?

ANS/

Property

S-SBR

E-SBR

Tensile strength (MPa)1819
Elongation at tear (%)565635
Mooney viscosity (100 °C)48.051.5
Glass transition temperature (°C)-65-50
Polydispersity2.14.5

Q.3-WHAT ARE THE APLLICATION OF BUNA-S?

ANS/

  • It  is used widely in pneumatic tires in shoe heels and soles, gaskets and even chewing gum
  • . It is a commodity material which competes with natural rubber
  •  it  is extensively used in coated papers, being one of the most cost-effective resins to bind pigmented coatings.
  • It is also used in building applications, as a sealing and binding agent behind renders as an alternative to PVA,.
  • Additionally, it is used in some rubber cutting boards.

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4 Responses to PROPORTIES AND USES OF BUNA-S

  1. Anonymous says:
    at
  2. Usman farooque says:
    at

    Engineering syllabus

  3. Usman farooque says:
    at

    Engineering syllabus

  4. Muhammad Farooq says:
    at

    sir,please if you have any data on styrene butadiene rubber including process flow diagram,material and energy balance,cost estimation ,than help me.I shall be very thankful to you.

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