DEVELOPMENT OF FIRE RETARDANT ELASTOMERS

Abstract

The major effort of research under this contract was devoted to the emulsion copolymerization of elastomeric monomers (isoprene, chloroprene, acrylates), with flame-retardant olefinic compounds such as: bis(2-chloroethyl) vinylphosphonate (CVP), diallyl allylphosphonate (DAAP), diallyl chloromethylphosphonate (DACP), diallyl phenylphosphate hexachlorobutadiene (HCBD), and phenyl allyl allylphosphonate (PAAP). Other monomers such as acrylonitrile and vinylidene chloride were also incorporated into several compositions. Copolymers of elastomeric monomers with diallyl chloromethylphosphonate or with vinylidene chloride were self-extinguishing (Q.M. number of 4). The incorporation of a low molecular weight polymer of CVP into an Acrylon Rubber by milling also produced a self extinguishing elastomer. The other flame-retardants listed, did not produce permanently nonflammable copolymers. In several cases, no true copolymers were produced. For example, attempts to copolymerize HCBD with a number of monomers led to polymeric products from which the HCBD could be extracted. The self-extinguishing characteristics of Neoprene were not improved by milling low molecular weight CVP into it.

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1960
Accession Number
AD0466131

Entities

People

  • Wolf Karo

Tags

DTIC Thesaurus Topics

  • Alkenes
  • Butadienes
  • Chlorine
  • Chloroprenes
  • Contracts
  • Copolymerization
  • Copolymers
  • Elastomers
  • Flame Retardants
  • Government Procurement
  • High Temperature
  • Low Temperature
  • Materials
  • Molecular Weight
  • Neoprene
  • Polymerization
  • Polymers

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Engineering.

Technology Areas

  • Microelectronics