Q. The temperature at which a non-crystalline material transforms from a supercooled liquid to rigid glass is __________

View solution

Q. Glasses show evidence of _____ fractures.

View solution

Q. Plastics and elastomers differ due to their properties of ________

View solution

Q. Which of the following is not a characteristic of rubber?

View solution

Q. How does the crystallinity of an elastomer affect its strength?

View solution

Q. The loss of heat in elastomers due to friction is known as ________

View solution

Q. How is the hardness of an elastomer measured?

View solution

Q. What is the thermal conductivity of rubber?

View solution

Q. What is the trade name for natural polyisoprene?

View solution

Q. What is the percentage of elongation of styrene butadiene?

View solution

Q. What is Buna N rubber?

View solution

Q. What is the service temperature of polysiloxane?

View solution

Q. What is the hardening temperature of unvulcanized natural rubber?

View solution

Q. Which of the following is not a characteristic of natural rubber?

View solution

Q. Addition of ______ results in the vulcanization of rubber.

View solution

Q. __________ is a reinforcement filler.

View solution

Q. Buna S rubbers consisting of over 50% styrene are considered as _________

View solution

Q. What is ACM elastomer?

View solution

Q. What is the glass transition temperature of polybutadiene?

View solution

Q. What is Hypalon?

View solution