Effect of volume fraction of ramie cloth on physical and mechanical properties of ramie cloth/UP resin composite

Lei, Wen; Wen-guang, Lei; Ren, Chao

doi:10.1016/s1003-6326(06)60237-9

Cited by 31 publications

(10 citation statements)

References 7 publications

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“…These results indicate that the modification of ramie fiber with CHPTAC is successful. It has been reported that thermal stability of the modified fiber decreased with the decrease in crystallinity (Lei et al 2006;Yin et al 2006). Thus, the shift toward lower side of the maximum decomposition temperatures for the mercerized and CHPTAC-modified fibers can rationally be attributed to the increase of the amorphous or disordered region in the fiber as revealed from the XRD results, in which the amorphous phase thermally degraded easily than the crystalline phase.…”

Section: Elemental Analysismentioning

confidence: 99%

Study on the cationic modification and dyeing of ramie fiber

et al. 2007

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A modification procedure for ramie fiber using 3-chloro-2-hydroxypropyltrimethyl ammonium chloride (CHPTAC) as a cationic agent and NaOH as a catalyst was developed in this paper. The morphological and structural transformations of the fiber induced by modification were determined by XRD (XRD), differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA). XRD results show that the crystal structure of the modified fiber was still preserved although its crystallinity was decreased, which was confirmed from the TGA results. The mechanisms for the modification and dyeing of ramie fiber were analyzed, and the optimum modification conditions were determined to be the CHPTAC concentration of 30 g L -1 , the NaOH concentration of 15 g L -1 , the reaction temperature of 50°C, and the reaction time of 60 min. The raw and the modified fibers were dyed with C.

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Section: Elemental Analysismentioning

confidence: 99%

Study on the cationic modification and dyeing of ramie fiber

et al. 2007

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“…27 Furthermore, several researchers have commonly agreed that at a high volume fraction (above 50%), fibres tend to form aggregations which result in the weakening of the interfacial area and debonding between the fibres and matric. 29,[33][34][35][36] Therefore, the objective of this study includes investigating the effects of sugar palm fibre yarn loading on the physical, mechanical and thermal properties of reinforced unsaturated polyester composites. ); methyl ethyl ketone peroxide (MEKP) (Butanox-M50) as curing initiator; and cobalt as reaction accelerator were supplied by CCP Composites Resins Malaysia Sdn.…”

Section: -26mentioning

confidence: 99%

Physical, Mechanical and Thermal Properties of Sugar Palm Yarn Fibre Loading on Reinforced Unsaturated Polyester Composite

Norizan

Abdan

Salit

et al. 2017

JPS

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“…LEI et al [8] encontraram resistência à tração ligeiramente inferior à obtida neste trabalho para o teor de 30%, com valores iguais a 40 MPa e 6 GPa de resistência à tração e módulo de elasticidade na flexão, respectivamente. Outros trabalhos que também usam a fibra de rami como reforço em compósitos poliméricos, geralmente aplicam a fibra alinhada unidirecionalmente ou distribuída aleatoriamente, mas não em forma de tecido e, portanto, os resultados não são comparáveis com os obtidos neste estudo [12,16,15].…”

Section: Resultsunclassified

Painéis sanduíches de poliéster reforçado com fibras de rami para aplicação na Construção Civil

et al. 2016

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RESUMONeste trabalho foram produzidos e caracterizados mecanicamente compósitos de resina de poliéster reforçada com tecido bidirecional de fios de rami, com diferentes teores de reforço. Estes compósitos foram testados experimentalmente e numericamente como faces de painéis sanduíches formados com núcleos de bucha vegetal impregnada com resina de poliéster e poliestireno expandido -EPS. A caracterização mecânica dos materiais em estudo foi realizada em laboratório a partir de ensaios de tração e flexão, e simulação numérica pelo Método de Elementos Finitos (MEF). A microestrutura do compósito foi analisada por Microscopia Eletrônica de Varredura (MEV). A partir das propriedades mecânicas obtidas para os compósitos reforçados com tecido bidirecional de fios de rami e núcleos de EPS e bucha vegetal, observou-se viável a confecção de painéis sanduíches para aplicação na Construção Civil. Os compósitos com 50% de volume de fios de rami apresentaram as melhores propriedades mecânicas e foram usados como faces nos protótipos dos painéis. Os núcleos em estudo apresentaram bons resultados, com destaque para a bucha vegetal impregnada de resina poliéster, que apresentou maior rigidez e opções de confecção de painéis com maiores dimensões e mais delgados. O presente trabalho evidenciou o potencial das fibras vegetais para uso como constituintes dos compósitos poliméricos e núcleo dos painéis sanduíches e, portanto, revela uma nova alternativa de aproveitamento dessas fibras para aplicação no setor da construção. Palavras-chave:Compósito. Fibra de rami. Fibra de bucha vegetal. Painel sanduíche. Resina poliéster. ABSTRACTIn this work, composites of polyester resin reinforced with ramie fiber bidirectional woven cloth in different content by volume have been produced and characterized. These composites were tested experimentally and numerically as faces of sandwiches panels with cores of sponge gourd impregnated with polyester resin and expanded polystyrene-EPS. Mechanical characterization of these materials was conducted in the laboratory from tensile and bending tests, and numerical simulation using Finite Element Method (FEM). The composite was analyzed by Scanning Electron Microscopy (SEM). The mechanical properties obtained for the composites and cores showed viable making sandwich panels for application in construction. The composites with 50% volume fibers presented the best mechanical properties and have been used as faces in prototypes of the panels. The cores in study showed good results, with emphasis on the sponge gourd impregnated with polyester resin, which showed the highest stiffness and making options with larger and thinner panels. The present study showed the potential of natural fibers for use as reinforcing of polymeric composites and sandwich panels cores and so a new alternative use of these fibers for applications in the construction.

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Effect of volume fraction of ramie cloth on physical and mechanical properties of ramie cloth/UP resin composite

Cited by 31 publications

References 7 publications

Study on the cationic modification and dyeing of ramie fiber

Study on the cationic modification and dyeing of ramie fiber

Physical, Mechanical and Thermal Properties of Sugar Palm Yarn Fibre Loading on Reinforced Unsaturated Polyester Composite

Painéis sanduíches de poliéster reforçado com fibras de rami para aplicação na Construção Civil

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