Synthesis and Application of Natural Polymeric Plasticizer Chile

  • Synthesis and Application of Natural Polymeric Plasticizer Chile
  • Synthesis and Application of Natural Polymeric Plasticizer Chile
  • Synthesis and Application of Natural Polymeric Plasticizer Chile
  • Are biopolymers a good substitute for conventional plasticizers?
  • The use of natural and/or biodegradable plasticizers, with low toxicity and good compatibility with several plastics, resins, rubber and elastomers in substitution of conventional plasticizers, such as phthalates and other synthetic conventional plasticizers attracted the market along with the increasing worldwide trend towards use of biopolymers.
  • Why do biopolymers need plasticizers?
  • However, they generally present poor mechanical properties regarding processability and end-use application, since the fragility and brittleness exhibited during thermoformation can limit their potential for application. In order to overcome this problem, plasticizers are added to provide the necessary workability to biopolymers.
  • Which polymers are plasticized?
  • The plasticizers produced have been applied in 60 polymers and more than 30 groups of products. Industrially, the most common plasticized polymers are PVC, poly (vinyl butyral) (PVB), poly (vinyl acetate) (PVAc), acrylics, cellulose molding compounds, nylon, polyamides and certain copolyamides.
  • Do polymeric plasticizers have a low plasticizing efficiency?
  • Unfortunately, they did not try them to PVC. In general, their large molecule size hinders diffusion in PVC to suppress migration. However, the rate of diffusion of the plasticizer is one of the most important factors determining plasticizer efficiency 33, 34. Polymeric plasticizer generally has low plasticizing efficiency.
  • Why are plasticizers important in biopolymer-based films & coatings production?
  • In biopolymer-based films and coatings production, plasticizers are also essential additives since they can improve flexibility and handling of films, maintain integrity and avoid pores and cracks in the polymeric matrix .
  • How can a polymer be plasticized?
  • Plasticization can be achieved internally by introducing into the original polymer a comonomer, which reduces crystallizability and increases chain flexibility, or externally by compounding PVC with a low molecular weight compound.

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