Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its (A) Elasticity (B) Strength (C) Plasticity (D) Weathering characteristics

Fillers such as zinc oxide and carbon black are added to the crude
natural rubber before vulcanisation in order to improve its
(A) Elasticity
(B) Strength
(C) Plasticity
(D) Weathering characteristics
by

1 Answer

Answer :

(D) Weathering characteristics
by

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Last Answer : (D) Converts its plasticity into elasticity

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Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to (A) Protect rubber goods from attack by oxygen & ozone present in the atmosphere (B) Reduce its viscosity to permit easier processing (C) Reduce the time of vulcanisation and quantity of vulcanising agent (D) Increase its viscosity

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In vulcanisation, with which the natural rubber is heated? -Do You Know?

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Last Answer : answer:

In vulcanisation, with which the natural rubber is heated?

Description : In vulcanisation, with which the natural rubber is heated?

Last Answer : Sulphur

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Most commonly used rubber vulcanisation agent is (A) Sulphur (B) Bromine (C) Platinum (D) Alumina

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The process involved in converting rubber into a thin sheet or coating it on fabric is called (A) Extrusion (B) Mastication (C) Calendaring (D) Vulcanisation

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Description : In vulcanisation of rubber,

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Which one of the following statements is not correct? Vulcanisation of rubber makes it - (1) soft and flexible (2) strong and hard (3) chemical resistant (4) withstand higher temperatures

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In vulcanisation process, rubber can be hardened by adding - (1) Nitrogen (2) Silicon (3) Sulphur (4) Alcohol

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