Neoprene (GR: or Polychloroprene or Dupe)

Preparation: Neoprene is prepared by the free radical polymerisation of chloroprene in an emulsion system. Starting materials are acetylene and HCN. Neoprene can be vulcanised to considerable extent by heat alone. Its physical properties are enhanced by compounding it with metallic oxides like Zno or Mgo.

Properties:

(1)                         The presence of chlorine and Trans 1, 4 structures imparts superior resistance to vegetable and mineral oils and high temperature.

(2)                         The vulcanised products are found to have excellent tensile strength.

(3)                         It has good resistance to ozone and abrasion thereby preventing easy oxidative degration.

USES: neoprene is used for making:

(a)                          Gloves

(b)                         Industrial hoes and gaskets

(c)                          Insulation coating to wire and cables

(d)                         Tubing for carrying corrosive gases and oils

(e)                         Conveyer belts

(f)                           Sponges

(g)                          Shoes soles

Posted Date: 7/21/2012 8:31:14 AM | Location : United States

Ask an Expert

Related Discussions:- Important synthetic rubbers: neoprene, Assignment Help, Ask Question on Important synthetic rubbers: neoprene, Get Answer, Expert's Help, Important synthetic rubbers: neoprene Discussions

Write discussion on Important synthetic rubbers: neoprene
Your posts are moderated

Write your message here..

Related Questions

Molar conductivity, What do you understand by molar conductivity at infinit... What do you understand by molar conductivity at infinite dilution

Inorganic chemistry, dicarboylic acids fully dicarboylic acids fully

Non - ideal solutions exhibit either positive or negative, Non - ideal solu... Non - ideal solutions exhibit either positive or negative deviations from  Roulette's law. What are these deviations and why are they caused? Explain with one example for each t

Substrate concentration , How does the substrate concentration affect the s... How does the substrate concentration affect the speed of enzymatic reactions? Ans) Initially as substrate concentration enhances the speed of the reaction enhances, this happens

Explain the types of isomers, Q. Explain the types of Isomers? Ans. ... Q. Explain the types of Isomers? Ans. Three types of isomers are chain isomers, position isomers, and functional group isomers: Chain isomers are isomers which differ in

Explain electrochemical series with its applications., We have seen that di... We have seen that different metal/metal ion combinations have different values of electrode potentials. The various elements can be arranged in order of increasing or decreasing va

Mr, positve deviation from beer''s law positve deviation from beer''s law

Important synthetic rubbers: styrene rubber , Styrene rubber (GR-S or Buna-... Styrene rubber (GR-S or Buna-S or SBR or Ameripol): Styrene butadiene rubber (SBR) is prepared by the copolymerization of butadiene (75%) and styrene (25%) in an emulsion styrene

Favourable conditions for electrovalency, Favourable conditions for electro... Favourable conditions for electrovalency are: (1) Low charge on ions, large cation, small anion (2) High charge on ions, small cation, large anion (3)High charge on ions,

Basic concepts of matter, all all