Mali good quality pvc industry chemical plasticizer DBS

Mali good quality pvc industry chemical plasticizer DBS

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Mali good quality pvc industry chemical plasticizer DBS

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Mali good quality pvc industry chemical plasticizer DBS

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Mali good quality pvc industry chemical plasticizer DBS

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Mali good quality pvc industry chemical plasticizer DBS

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Mali good quality pvc industry chemical plasticizer DBS
  • Can bio-based plasticizers compete with DEHP in PVC?
  • Potential alternatives to DEHP in PVC include diheptyl succinate (DHS), diethyl adipate (DEA), 1,4-butanediol dibenzoate (1,4-BDB), and dibutyl sebacate (DBS). To examine whether that these bio-based plasticizers can compete with DEHP, we need to compare their tensile, mechanical, and difusional properties.
  • Are DBS and DHS a good plasticizer for PVC?
  • Where data was available, the results from this study are in good agreement with the experiment; we conclude that DBS and DHS are most promising green plasticizers for PVC, since they have properties comparable to DEHP but not the environmental and toxicity concerns.
  • Are sebacate plasticizers effective in reducing Tg?
  • Another class of chemicals of interest is the sebacates. While the tensile properties of sebacate plasticizers in PVC have not been studied, Mahnaj et al.30studied their efectiveness in ethyl cellulose polymer. They found that dibutyl sebacate was the most successful at lowering Tg among the sebacate-based plasticizers studied.
  • Is diol dibenzoate a viable alternative plasticizer?
  • The diol dibenzoate family of compounds is of interest in the search for viable alternative plasticizers because diethylene glycol dibenzoate (DEGDB) is already in wide commercial use. However, there is concern that its ether linkages may lead to the formation of metabolites that are dificult to degrade microbially.
  • Can DBS replace DEHP as a plasticizer?
  • Furthermore, both DBS and DHS have been shown to be nontoxic while DHS is biodegradable and can be sourced from renewable feedstock. This leads us to conclude that DHS and DBS are excellent candidates for replacing DEHP as a plasticizer.
  • Why do benzyl groups fail to plasticize PVC?
  • This apparent lack of plasticization was also observed in an experimental study conducted by Erythropel et al.26 One proposed hypothesis to explain this anomaly is that the stacking of the two benzyl groups along with 1,4-BDB spacer components caused rapid partial crystallization within the blend, therefore losing its ability to plasticize PVC.