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  • What is DINP?
  • DINP is a common chemical name for a family of di-ester phthalates widely used as plasticizers. These chemicals are colorless, oily liquids with high boiling points, low volatilities, and are poorly soluble in water. DINP is used to provide greater flexibility and softness to the final product when treating plastics.
  • Is DOP a good plasticizer?
  • Plasticizing efficiency of DOP is considered as “1” and efficiency all other plasticizers is evaluated with reference to DOP. Besides, cost of DOP based compound can be reduced by blending it with CPW of appropriate grade in appropriate proportion (70:30), without affecting quality of product. However, DOP is on its way out due to health concerns.
  • What is DINP made of?
  • Unlike lower molecular weight phthalates, DINP is not composed of a single molecule. Rather, it is produced by reaction of a phthalate moiety with alcohols. The majority of these alcohols have nine carbons (C9), but in various isomeric configurations. In addition, the alcohol fraction includes C8 and C10 alcohols.
  • Does DINP improve extrusion efficiency?
  • DINP has superiority in improving extrusion efficiency. Under typical extrusion processing conditions, DINP can reduce the melt viscosity of the compound more than DOP, which helps to reduce die pressure, reduce mechanical wear or increase extrusion productivity (up to 21%).
  • Which is better DOP or DINP?
  • DINP is more environment friendly than DOP. b. Its volatility, migration and non-toxicity are better than DOP, which can give good light resistance, heat resistance and aging resistance to the product. c. DINP has lower density (0.972-0.98) and lower energy consumption with higher extrusion outputs compared to DOP (0.99 density of DOP) d.
  • What is the difference between DINP and phthalate?
  • It has Molecular Weight 390, Boiling Pt 385ᵒ C, Freezing point (-)55ᵒ C and density 0.99 DINP on the other hand are phthalates with branched alkyl side chains of varying lengths C8, C9 and C10. Average C9. DINP has Molecular Weight 418, Boiling point 405ᵒ C, Freezing point (-) 48ᵒ C and density 0.972-0.98. 3. Efficiency –