14.2Q) Elastomers #2

Which elastomer is known for its versatility and is a synthetic alternative to natural rubber?

• Natural Rubber (NR)

• Styrene-butadiene Copolymers (SBR)

• Acrylonitrile-butadiene Copolymers (NBR)

• Isoprene, Synthetic (IR)

Which elastomer is recognized for its excellent weather resistance?

• Polychloroprene (CR)

• Butyl Rubber (IIR)

• Chlorosulfonated Polyethylene (CSM)

• Polyacrylate (ACM)

What is the primary benefit of vulcanization in elastomers?

• Increases permeability to gases

• Improves chemical resistance

• Enhances elastomer properties

• Reduces oil resistance

Which elastomer is known for its high resilience?

• Polybutadiene (BR)

• Natural Rubber (NR)

• Polyacrylate (ACM)

• Thermoplastic Elastomers

What effect do higher sulfur levels have on elastomers?

• Decrease bondability

• Increase bondability

• Reduce chemical resistance

• Lower heat resistance

Tags

NGSS.HS-PS2-6

Which elastomer is particularly resistant to oil and fuels?

• Styrene-butadiene Copolymers (SBR)

• Acrylonitrile-butadiene Copolymers (NBR)

• Butyl Rubber (IIR)

• Isoprene, Synthetic (IR)

What is the role of accelerators in the vulcanization process?

• Slow down the process

• Speed up the process

• Increase gas permeability

• Decrease oil resistance

Tags

NGSS.HS-PS1-5

Which elastomer is known for its low permeability to gases?

• Polychloroprene (CR)

• Butyl Rubber (IIR)

• Polyacrylate (ACM)

• Thermoplastic Elastomers

What is the primary function of fillers in elastomers?

• Reduce bondability

• Enhance elastomer properties

• Increase oil resistance

• Decrease chemical resistance

Which compound can reduce the bondability of elastomers?

• Sulfur

• Phthalate Ester Plasticizers

• Accelerators

• Fillers