Question

plz answer........
five examples for elastomers.... will mark as brainliest.....

Answer 1

1.) Natural Rubber

2.) Synthetic Polymer

3.) Polybutadiene

4.) Styrene - Butadiene Rubber

5.) Butyl Rubber


Hope it helped you....

Answer 2

Unsaturated rubbers that can be cured by sulfur vulcanization:

Natural Rubber (NR)

Synthetic Polyisoprene (IR)

Butyl rubber (copolymer of isobutylene and isoprene, IIR)

Halogenated butyl rubbers (Chloro Butyl Rubber: CIIR; Bromo Butyl Rubber: BIIR)

Polybutadiene (BR)

Styrene-butadiene Rubber (copolymer of polystyrene and polybutadiene, SBR)

Nitrile Rubber (copolymer of polybutadiene and acrylonitrile, NBR), also called Buna N rubbers

Hydrogenated Nitrile Rubbers (HNBR) Therban and Zetpol

Chloroprene Rubber (CR), polychloroprene, Neoprene, Baypren etc.

(Note that unsaturated rubbers can also be cured by non-sulfur vulcanization if desired).

Saturated Rubbers that cannot be cured by sulfur vulcanization:

EPM (ethylene propylene rubber, a copolymer of ethylene and propylene) and EPDM rubber (ethylene propylene diene rubber a terpolymer of ethylene, propylene and a diene-component)

Epichlorohydrin rubber (ECO)

Polyacrylic rubber (ACM, ABR)

Silicone rubber (SI, Q, VMQ)

Fluorosilicone Rubber (FVMQ)

Fluoroelastomers (FKM, and FEPM) Viton, Tecnoflon, Fluorel, Aflas and Dai-El

Perfluoroelastomers (FFKM) Tecnoflon PFR, Kalrez, Chemraz, Perlast

Polyether Block Amides (PEBA)

Chlorosulfonated Polyethylene (CSM), (Hypalon)

Ethylene-vinyl acetate (EVA)

Various other types of elastomers:

Thermoplastic elastomers (TPE), for example Elastron, etc.

Thermoplastic Vulcanizates (TPV), for example Santoprene TPV

Thermoplastic Polyurethane (TPU)

Thermoplastic Olefins (TPO)

The proteins resilin and elastin

Polysulfide Rubber

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