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Caracterização dos materiais lignocelulósicos da castanha do Brasil (Bertholletia excelsa), preparação e caracterização de seus compósitos com polipropileno
(Universidade Federal de São Carlos, 2017-05-31)
This research aimed to characterize the lignocellulosic materials of the
Brazil nut (Bertholletia excelsa) extraction process and to develop biocomposites
incorporating these materials with homopolymer and copolymer ...
Estudo de elastômeros termoplásticos vulcanizados (TPVs) de borracha natural e polipropileno
(Universidade Federal de São Carlos, 2015-12-21)
Natural rubber (NR) is used for the preparation of several articles in domestic, industrial and automotive worldwide. However, for the NR can be used in these applications it must be vulcanized hindering their recyclability, ...
Influência de diferentes aditivos nucleantes na morfologia e nas propriedades do polipropileno moldado por injeção
(Universidade Federal de São Carlos, 2018-10-25)
Samples of a polypropylene (PP) homopolymer were nucleated with three different nucleating agents: 1,3:2,4-bis (3,4-dimethylobenzylideno) sorbitol (DMDBS), bis(4-propylbenzylidene) propilsorbitol (propilsorbitol), and ...
Caracterização em tempo real da birrefringência de forma do sistema PS/PP por técnica reo-óptica
(Universidade Federal de São Carlos, 2019-02-25)
The rheo-optical behavior of polystyrene (PS), polypropylene (PP) and immiscible dilute mixtures of these polymers was studied in order to determine the flow birefringence and form birefringence of these materials. The ...
Pré-tratamento de fibras de bagaço de cana-de-açúcar e seu uso em altos teores em compósitos com polipropileno via mistura termocinética
(Universidade Federal de São Carlos, 2020-02-19)
Agroindustrial residue from sugarcane generate more than 200 million tons of bagasse annually, rich in plant fibers that can be potentially applied in polymer composites. New processing routes are required to process ...
Estudo das propriedades mecânicas, térmicas e de transporte do compósito com carbonato de cálcio nano e microparticulado em polipropileno
(Universidade Federal de São Carlos, 2011-03-04)
In this work were determined and compared to mechanical, thermal and barrier of the polypropylene composites containing micropartilate and microparticulate calcium carbonate. To prepare the composites, the filler was ...