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Previous issue date: 2011-03-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The clay mineral attapulgite is a group of hormitas, which has its
structures formed by microchannels, which give superior technological
properties classified the industrial clays, clays of this group has a very versatile
range of applications, ranging from the drilling fluid for wells oil has applications
in the pharmaceutical industry. Such properties can be improved by activating
acid and / or thermal activation. The attapulgite when activated can improve by
up to 5-8 times some of its properties. The clay was characterized by X-ray
diffraction, fluorescence, thermogravimetric analysis, differential thermal
analysis, scanning electron microscopy and transmission electron microscopy
before and after chemical activation. It can be seen through the results the
efficiency of chemical treatment, which modified the clay without damaging its
structure, as well as production of polymer matrix composites with particles
dispersed atapugita / A atapulgita ? um argilomineral do grupo das hormitas, que tem suas
estruturas formadas por microcanais, que lhe conferem propriedades
tecnol?gicas superiores a argilas classificadas industriais, esse grupo de argilas
tem um leque de aplica??es muito vers?til, que vai de fluido de perfura??o para
po?os de petr?leo at? aplica??es na ind?stria farmac?utica. Tais propriedades
podem ser melhoradas por ativa??o acida e/ou ativa??o t?rmica. A atapulgita
quando ativada pode melhorar em at? de 5 a 8 vezes algumas de suas
propriedades. A argila foi caracterizada por difra??o de raios X, fluoresc?ncia,
an?lise termogravim?trica, an?lise t?rmica diferencial, microscopia eletr?nica
de varredura e microscopia eletr?nica de transmiss?o antes e depois da
ativa??o qu?mica. ? poss?vel observar, atrav?s dos resultados a efici?ncia do
tratamento qu?mico, que modificou a argila sem danificar sua estrutura, assim
como produ??o de composito de matriz polim?rica com part?culas dispersas de
atapugita
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/12728 |
| Date | 14 March 2011 |
| Creators | Costa, Antonio Carlos Silva da |
| Contributors | CPF:50580396720, http://lattes.cnpq.br/5460040602567184, Ito, Edson Noriyuki, CPF:40405036191, http://lattes.cnpq.br/7249500407405478, Silva, Elialdo Chib?rio da, CPF:85241580425, http://lattes.cnpq.br/5426129339908081, Acchar, Wilson |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Ci?ncia e Engenharia de Materiais, UFRN, BR, Processamento de Materiais a partir do P?; Pol?meros e Comp?sitos; Processamento de Materiais a part |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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