Plasticizer loss in a complex system (polyamide 12): Kinetics
The curve showing the full plasticizer loss at 60 °C, using the available experimental short-term data, was estimated by using the α-value from the extrapolation (108 g polymer/g plasticizer) and an adjustable D co (determined to be 7.5 × 10 13 cm 2 /s). It predicted 50% and 95% mass loss after 22 500 h (2.5 years) and 921 600 h (105
Short Note No . 016/2009 - BUCHI
polyamide PA 12 samples Polyamide PA 6, plasticizer content [%] Polyamide PA 12, plasticizer content [%] Declared value 10 12 Sample 1 9.52 12.45 Sample 2 9.72 12.41 Sample 3 9.63 12.42 Mean value 9.62 12.43 rsd [%] 1.03 0.16 4. Conclusion The determination of the polymer plasticizer content in polyamide samples by solvent extraction using the
Plasticiser loss from plastic or rubber products through
In some cases, a plasticised-polymer product, such as a polyamide-based fuel pipe in a car, may experience high temperatures during service and diffusion-controlled migration. 41 The extrapolation
Determination of plasticizers efficiency for nylon by
Four plasticizers were studied: glycerin mono stearate, benzene sulfonamide, methyl 4-hydroxybenzoate (M4HB), and diethylhexyl phthalate. Plasticizers efficiency was determined by calculating cohesive energy density, solubility parameters, free volume and interaction intensities of pristine nylon, and the nylon–plasticizer blends.
Mass spectrometry of polymers: A tutorial review
Applications to synthetic polymers are scarce and so far have been limited to the characterization of low MW standards (Bridoux & Machuron-Mandard, 2013), differentiation of nylon types (Zughaibi & Steiner, 2025), identification of polyamides in consumer products (Abe et al., 2025), and investigation of the miscibility of polymer blends in
- Why are plasticizers added to polyamides?
- Some applications require higher flexibility and workability of the polyamides, therefore plasticizers are added to ease compounding and processing procedures and produce the desired product properties. Polyamides are semicrystalline polymers useful in a wide range of applications in the plastics industry.
- How to identify plastic additives in polymer materials?
- Although various analytical techniques can be used to identify plastic additives in polymeric materials, most laboratories and studies use wet chemical techniques to extract additives from the polymers. To date, many conventional methods for OPA analysis in polymer materials have been published.
- What is the efficiency of the plasticizers determined by?
- Plasticizers efficiency was determined by calculating cohesive energy density, solubility parameters, free volume and interaction intensities of pristine nylon, and the nylon–plasticizer blends. Four plasticizers were studied: glycerin mono stearate, benzene sulfonamide, methyl 4-hydroxybenzoate (M4HB), and diethylhexyl phthalate.
- What is the solubility parameter of rigid plasticizers?
- The solubility parameter results are shown in Table 2. The rigid plasticizers, namely M4HB and BSA, have solubility parameter values of 24.6 and 22.6 J/cm³ 0.5, respectively, which are very close to that of the nylon (23.2 J/cm³ 0.5).
- What are the four plasticizers studied?
- Four plasticizers were studied: glycerin mono stearate, benzene sulfonamide, methyl 4-hydroxybenzoate (M4HB), and diethylhexyl phthalate. Plasticizers efficiency was determined by calculating cohesive energy density, solubility parameters, free volume and interaction intensities of pristine nylon, and the nylon–plasticizer blends.
- How do we identify polymer additives using Py-GC/MS?
- In their study of fast identification of polymer additives using Py-GC/MS, (Herrera et al., 2003), used SIM to monitor the appearance of certain ions of known m / z, such as m / z 149 and 205, which are characteristic of phthalate ester plasticizers and the antioxidant butylated hydroxytoluene (BHT) (PubChem CID: 31404).
