Browsing by Subject "Polypropylene"
Now showing items 1-7 of 7
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Detection of bisphenol a and four analogues in atmospheric emissions in petrochemical complexes producing polypropylene in South America
(Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-07-28)Because of its toxicity and impacts on the environment and human health, bisphenol A (BPA) has been controlled in numerous industrialized nations, increasing demand for bisphenol analogues (BP) for its replacement. However, ... -
Experimental study of the impact of trace amounts of acetylene and methylacetylene on the synthesis, mechanical and thermal properties of polypropylene
(Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-10-12)During the production of polymer-grade propylene, different processes are used to purify this compound and ensure that it is of the highest quality. However, some impurities such as acetylene and methyl acetylene are ... -
Impact of traces of hydrogen sulfide on the efficiency of ziegler–natta catalyst on the final properties of polypropylene
(John Wiley & Sons Inc.United States, 2022-09-19)Sulfur compounds are removed from propylene through purification processes. However, these processes are not 100% effective, so low concentrations of compounds such as H2S may be present in polymer-grade propylene. This ... -
Iron oxide powder as responsible for the generation of industrial polypropylene waste and as a co-catalyst for the pyrolysis of non-additive resins
(Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-10-03)For the synthesis of polymeric resins, it is of great importance to review the raw materials and the equipment to be used to avoid the presence of compounds that may affect the effectiveness of the polymerization and the ... -
Recovery of (z)-13-docosenamide from industrial wastewater and its application in the production of virgin polypropylene to improve the coefficient of friction in film type applications
(MDPI AGSwitzerland, 2023-01-09)Additives play an important role in the production of plastic materials through their application, in which the mechanical, thermal, and physical properties of polymers are improved, making them last longer and be more ... -
Theoretical–experimental study of the action of trace amounts of formaldehyde, propionaldehyde, and butyraldehyde as inhibitors of the ziegler–natta catalyst and the synthesis of an ethylene–propylene copolymer
(MDPI AGSwitzerland, 2023-02-22)The copolymer synthesis process can be affected by failures in the production process or by contaminating compounds such as ketones, thiols, and gases, among others. These impurities act as an inhibiting agent of the ... -
Valoration of the synthetic antioxidant tris-(Diterbutyl-Phenol)-phosphite (Irgafos p-168) from industrial wastewater and application in polypropylene matrices to minimize its thermal degradation
(Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2023)Industrial wastewater from petrochemical processes is an essential source of the synthetic phenolic phosphite antioxidant (Irgafos P-168), which negatively affects the environment. For the determination and analysis of ...