Effect of organoclay on blends of individually plasticized thermoplastic starch and polypropylene

Ferreira, Willian H.; Khalili, Rachel R.; Figueira, Mario J.M.; Andrade, Cristina T.

doi:10.1016/j.indcrop.2013.10.016

Cited by 28 publications

(16 citation statements)

References 37 publications

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“…The aim is to obtain low-cost materials with high quality mechanical properties. In addition, they are easily dismantled by microorganisms at the end of use (Ferreira, Khalili et al 2014). Thermoplastic starch is a very hydrophilic material with limited performance (Taguet, Huneault et al 2009) , it has disadvantages such as poor mechanical properties and high water solubility.…”

Section: Introductionmentioning

confidence: 99%

“…Such as, high mechanical properties, high temperature resistance, high flow properties, cheap and hydrophobic , . Several studies have been conducted on starch/polymer blends like polyester/starch (Ratto et al (1999), starchchitosan (Shukur and Kadir 2015), linear low-density polyethylene/starch (Chandra and Rustgi 1997), (Shujun et al (2005), (Rodriguez-Gonzalez et al (2003), (St-Pierre et al (1997), starch/polycaprolactone (Ortega-Toro et al (2016) and starch/polypropylene (Ferreira, Khalili et al 2014); this can be used in many fields including, agriculture, industry, medicine and canning, etc After our theoretical study, we find that the majority of studies focused on mixing starch with polyolefins but, biodegradable plastic from synthetic polymer/TPS material blend has a problem, this problem is an incompatibility between hydrophilic starch and hydrophobic synthetic , . Recently, many researchers have done much work to improve the compatibility of the blend including, the modification of starch, the modification of polyolefin's and/or the introduction of compatibilizer (Shujun et al (2005) .…”

Section: Introductionmentioning

confidence: 99%

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The effect of thermoplastic starch on the properties of polypropylene/high density polyethylene blend reinforced by nano-clay

Hammache

Sérier

Chaoui

2020

Mater. Res. Express

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Polypropylene (PP) and high density polyethylene (HDPE) was melt-blended in pairs at a constant of 80:20 (mm) compositions; this blend is prepared by one-step reactive extrusion in a single-screw extruder. The present study aims to investigate the effect of thermoplastic starch (TPS) on the properties of PP and HDPE blend. This later has been investigated in the absence and presence of maleic anhydride grafted polyethylene (PE-g-MA), and reinforced by nano-clay. All the blends/ nano-bio-composites were prepared in an internal mixer. The results indicates changes in the blends in terms of morphological, Mechanical, Thermal, structural and rheological properties. However, the different blends and nano-bio-composites were studied by means of Thermogravimetry (TG), Differential scanning calorimeter (DSC), Melt flow index (MFI), Izod impact (unnotched) tests, Scanning Electron Microscopy (SEM) and x-ray diffraction (XRD).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of thermoplastic starch on the properties of polypropylene/high density polyethylene blend reinforced by nano-clay

Hammache

Sérier

Chaoui

2020

Mater. Res. Express

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“…A mistura de TPS com polímeros sintéticos convencionais tem sido uma das alternativas mais utilizadas nos últimos anos para superar as desvantagens da utilização do amido na indústria de polímeros [7][8][9]. No entanto, o desenvolvimento dessas misturas, na maioria das vezes, leva a obtenção de materiais com baixas propriedades mecânicas.…”

Section: Introductionunclassified

“…O polipropileno (PP) é um dos polímeros apolares mais utilizados na indústria nos últimos anos, principalmente devido ao seu baixo custo, baixa densidade, boas propriedades térmicas e mecânicas e excelente processabilidade. Diferentemente de misturas de polietileno e amido termoplástico, há na literatura muito poucos trabalhos sobre misturas de polipropileno e amido [7]. O objetivo do presente trabalho é avaliar a compatibilização de misturas de polipropileno e amido termoplástico, em presença do agente compatibilizante polipropileno graftizado com anidrido maleico (PP-g-MA).…”

Section: Introductionunclassified

Avaliação do efeito do agente compatibilizante (PP-g-MA) em misturas PP/Amido termoplástico

et al. 2019

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RESUMO O crescente desperdício de materiais plásticos no meio ambiente juntamente com a preocupação com a futura escassez do petróleo tem aumentado o interesse por polímeros biodegradáveis, como o amido. Nos últimos anos, o amido tem sido utilizado em misturas com diferentes polímeros sintéticos. Essas misturas têm sido compatibilizadas por meio do uso de agentes compatibilizantes do tipo copolímeros. O presente trabalho tem como objetivo avaliar a influência da adição do copolímero graftizado (PP-g-MA) nas propriedades mecânicas, térmicas e morfológicas de misturas de polipropileno (PP) e amido termoplástico (TPS). O TPS foi obtido em uma extrusora monorosca com 20 % (m/m) de glicerol, usado como plastificante. Posteriormente, misturas PP/TPS 80:20 % (m/m) foram processadas em uma extrusora de rosca dupla corotacional, na presença de 3, 5 e 7% (m/m) do PP-g-MA. A morfologia das misturas foi avaliada através de microscopia eletrônica de varredura. Os resultados mostraram uma redução significativa da fase dispersa de amido, com a adição do compatibilizante. As misturas processadas em presença do PP-g-MA apresentaram uma distribuição mais homogênea da fase de amido na matriz de PP. Os resultados dos ensaios de resistência à tração mostraram que o módulo do PP sofre um ligeiro aumento, com a adição do amido e do compatibilizante. A resistência das misturas no ponto de escoamento apresentou valores similares aos do PP. Apesar disso, a deformação na ruptura diminui drasticamente com a incorporação do amido. A adição de amido ao polipropileno, entretanto, aumenta significativamente a resistência ao impacto do polímero sintético. Com a adição de PP-g-MA à mistura PP/TPS, a resistência ao impacto sofre uma queda, que pode ser atribuída a redução da fase de amido na mistura. A estabilidade térmica das misturas PP/TPS sofre um ligeiro aumento com a incorporação do agente compatibilizante. Os materiais obtidos podem ser utilizados em substituição ao PP.

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“…Though there existed many advantages of blending two different polymers, a few polymers were miscible with each other. Ferrira et al added organoclay into polymer to improve the compatibility of blending materials; their experiment results indicated that the organoclay could significantly improve the compatibility between plasticized starch and polypropylene [7]. In addition, the literature reported that the starch also improves the hydrophilicity of PLA/starch/chitosan blends with antimicrobial function [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

Cai¹,

Zheng²,

Guo³

2017

TOMSJ

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Objective:To develop more green polymer composites and further know the performance of green composites, the composites based on green poly(L-lactic acid) (PLLA) and starch were fabricated by a counter-rotating mixer. And effect of starch on the fluidity and nucleating performance of PLLA was investigated using melt index instrument, optical depolarizer and wide angle X-ray diffraction instrument, respectively. Method and Conclusion:The fluidity of PLLA/starch composites showed that, compared to the neat PLLA, the addition of starch made the fluidity of PLLA increase significantly and the melt mass flow rate of PLLA/5%starch sample had the maximum value 13.36 g/10min. In addition, the introduction of starch could also increase the crystallization rate of PLLA through isothermal crystallization measurement and x-ray diffraction analysis, the maximum value of crystallization rate of PLLA/starch composites appeared in low crystallization temperature zone, and 10 wt% starch could make the t1/2 of PLLA decrease from 3999.4s to 421.4s.

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Effect of organoclay on blends of individually plasticized thermoplastic starch and polypropylene

Cited by 28 publications

References 37 publications

The effect of thermoplastic starch on the properties of polypropylene/high density polyethylene blend reinforced by nano-clay

The effect of thermoplastic starch on the properties of polypropylene/high density polyethylene blend reinforced by nano-clay

Avaliação do efeito do agente compatibilizante (PP-g-MA) em misturas PP/Amido termoplástico

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

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