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Utilização da borracha natural no desenvolvimento de elastômeros termoplásticos
(Universidade Federal de São Carlos, 2010-05-28)
Dynamic vulcanization is a process of vulcanization of an elastomer during melt mixing with a thermoplastic. This process results in an elastomeric alloy material with the properties of a conventional thermoset rubber, but ...
Desenvolvimento de um detector de espalhamento de luz LASER de baixo ângulo LALLS operando em tempo real na extrusão
(Universidade Federal de São Carlos, 2005-12-08)
In the present work a prototype of a low angle laser light scattering was developed and installed in an extruder in order to operate in real time. The equipment was built by the research group of which the author is member, ...
Influência da incorporação de poli(ácido lático) - PLA, de pó de madeira e outros aditivos no comportamento físico-mecânico do poli(hidroxibutirato) - PHB.
(Universidade Federal de São Carlos, 2004-04-30)
Polymeric materials are used today in the most varied sectors and the deleterious effects of their application, particularly in the short-term, have led to increasing environmental concern. On the other hand, innovative ...
Influência dos parâmetros de Processamento e da composição na morfologia de resinas ABS.
(Universidade Federal de São Carlos, 2004-08-24)
The present work is about the influence of processing parameter and composition on the morphology of acrylonitrile-butadiene-styrene (ABS)resins. The ABS grades chosen are commercial products with high rubber content, i. ...
Dispersão seletiva de argila montmorilonita em blendas poliméricas de PA6/ABS
(Universidade Federal de São Carlos, 2009-08-25)
For some applications toughening of polyamide is important. This can be accomplished through the addition of an elastomeric phase to the polyamide matrix with the drawback of a reduction in the stiffness and strength of ...
Estudo e desenvolvimento de blendas ternárias biodegradáveis a partir de poli(ácido lático), poli(álcool vinílico) e quitosana
(Universidade Federal de São Carlos, 2010-04-08)
The present study examined the use of poly(vinyl alcohol) as a compatibilizing agent between chitosan and PLA and as a diluent for chitosan in an approach where a dispersion chitosan in PVA produced by solution blending ...
Análise da influência das condições de processamento na morfologia e nas propriedades de blendas poliméricas PBT/ABS moldadas por injeção
(Universidade Federal de São Carlos, 2011-06-29)
A study on the correlation of blend morphology, properties, the injection molding process and manufacturing methods of polymeric blends constituted of PBT and ABS was proposed. Thus, uncompatibilized PBT/ABS blends have ...
Previsão do posicionamento de partículas de nanosílica numa blenda polimérica imiscível e comprovação via turbidimetria
(Universidade Federal de São Carlos, 2016-03-07)
The optical behavior of polymer systems with nanoparticles was studied in order to quickly assess the location of the nanoparticles in the immiscible polymer blend phases and interface using optical microscopy. The systems ...
Desenvolvimento de blendas poliméricas PVC/NBR através de processamento reativo e vulcanização dinâmica in situ
(Universidade Federal de São Carlos, 2008-02-28)
Dynamic vulcanization is a process of vulcanization of an elastomer during melt mixing with a thermoplastic which results in a material with better chemical and mechanical properties at high temperature. The PVC/NBR blends ...
Desenvolvimento de blendas poliméricas policarbonato/ poli (Tereftalato de Butileno) (PC/PBT) compatibilizadas e nanoestruturadas
(Universidade Federal de São Carlos, 2012-03-08)
The evaluation of addition of a random copolymer as compatibilizing and his effect in obtaining nanostructured morphology in blends composed by PC as matrix and PBT as dispersed phase, were investigated. The copolymercom ...