Dehp
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Migração de plastificantes e avaliação de propriedades mecânicas de filmes de poli(cloreto de vinila) para alimentos / Migration of plasticizers and evaluation on mechanical properties in poly(vinyl chloride) film into foods
The migration of packaging compounds can compromise the chemical and mechanical proprieties of the material, as well as causing toxicological problems with the consumer. The purpose of this work was to evaluate migration of plasticizers di-(2-ethylhexyl)phthalate (DEHP), di-(2-ethylhexyl)adipate (DEHA) and acetyl tributyl citrate (ATBC) used to produce poly(
Publicado em: 2007
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14. Estabilidade à radiaÃÃo gama do poli(cloreto de vinila) aditivado e do poli(cloreto de vinila) quimicamente modificado
Poly (vinyl chloride)-PVC is a polar thermoplastic polymer compatible with a wide array of additives, which is used in several practical applications. Among the products made of PVC there are medical devices which need to be sterilized through gamma irradiation. In this work a study was made to evaluate the stability to gamma radiation of PVC additivated, as
Publicado em: 2004
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15. Degradation studies on plasticized PVC films submited to gamma radiation
Poly (vinyl chloride), PVC, is a rigid polymer and for several of its applications must be compounded with plasticizing agents. The plasticizers minimize the dipolar interactions, which exist between the polymer's chains, promoting their mobility. In this work we studied the properties of PVC/plasticizer systems submitted to different doses of gamma radiatio
Materials Research. Publicado em: 2003-12
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16. Avaliação do potencial do isooctano como simulante de alimento gorduroso no estudo de migração de plastificantes
: Filmes de policloreto de vinila (PVC) plastificados com di-2-etil hexil ftalato (DEHP) foram expostos ao simulante de alimento gorduroso isooctano, para a obtenção das curvas de migração do plastificante. As influências da temperatura e da concentração de DEHP no processo de migração foram estudadas, utilizando-se cinco amostras de filme com teore
Publicado em: 1992
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17. Degradation of Phthalate and Di-(2-Ethylhexyl)phthalate by Indigenous and Inoculated Microorganisms in Sludge-Amended Soil
The metabolism of phthalic acid (PA) and di-(2-ethylhexyl)phthalate (DEHP) in sludge-amended agricultural soil was studied with radiotracer techniques. The initial rates of metabolism of PA and DEHP (4.1 nmol/g [dry weight]) were estimated to be 731.8 and 25.6 pmol/g (dry weight) per day, respectively. Indigenous microorganisms assimilated 28 and 17% of the
American Society for Microbiology.
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18. Phthalate-induced Leydig cell hyperplasia is associated with multiple endocrine disturbances
The possibility that exposures to environmental agents are associated with reproductive disorders in human populations has generated much public interest recently. Phthalate esters are used most commonly as plasticizers in the food and construction industry, and di-(2-ethylhexyl) phthalate (DEHP) is the most abundant phthalate in the environment. Daily human
National Academy of Sciences.
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19. Di(2-ethylhexyl) phthalate Is a Highly Potent Agonist for the Human Constitutive Androstane Receptor Splice Variant CAR2
The human constitutive androstane receptor (CAR, CAR1) regulates the expression of genes involved in xenobiotic metabolism in the liver. The CAR gene uses multiple alternative splicing events during pre-mRNA processing, thereby enhancing the CAR transcriptome. Previous reports have identified two prominent human CAR variants, CAR2 and CAR3, that possess
American Society for Pharmacology and Experimental Therapeutics.
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20. Phthalate esters used as plasticizers in packed red blood cell storage bags may lead to progressive toxin exposure and the release of pro-inflammatory cytokines
Phthalate esters (PE's) are plasticizers used to soften PVC-based medical devices. PE's are the most abundant man-made pollutants and increase the risk of developing an allergic respiratory disease or a malignancy. The leaching of PE's in donated packed red blood cells (PRBC) during storage was assessed. PRBC transfusion bags containing CPD/AS-1 (ADSOL) buff
Landes Bioscience.