Influence of surface modified cellulose microfibrils on the improved mechanical properties of poly (lactic acid)

Johari, Atul P.; Kurmvanshi, Surendra; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1016/j.ijbiomac.2015.12.038

Cited by 54 publications

(29 citation statements)

References 42 publications

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“…Therefore, the composites material finally becomes more moveable. The observed trends are supported from other research studies, where a polymer matrix, especially thermoset material during in rubbery region, there are no significant change in modulus are observed …”

Section: Resultssupporting

confidence: 86%

Reinforcement effect of nanocellulose on thermal stability of nitrile butadiene rubber (NBR) composites

Rashid

Julkapli

Yehya

2018

J of Applied Polymer Sci

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Poor physical and chemical attraction between nitrile butadiene rubber (NBR) matrix and filler resulted in low thermal properties. Therefore, nanocrystalline cellulose (NCC) as a reinforcement agent was used to increase the heat resistance and thermal stability of NBR composites. The addition of 2 phr NCC increased thermal stability and activation energy of NBR up to 75%. Meanwhile, the storage modulus of composites increased by 12 GPa at the similar loading of NCC. Good interfacial bonds of electrostatic interactions, formation of hydrogen bonds, crystallinity and nanosized of NCC are the main factors contribute to the final properties of NBR/NCC composites. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46594.

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Section: Resultssupporting

confidence: 86%

Reinforcement effect of nanocellulose on thermal stability of nitrile butadiene rubber (NBR) composites

Rashid

Julkapli

Yehya

2018

J of Applied Polymer Sci

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“…The results in Table 2 show that the aspect ratio (L/D) of OPF-CNWs was comparable with the CNW extracted from other biomass. The aspect ratio of all the CNWs samples was more than 10, which is the minimum required value for nanowhisker for adequate transfer of mechanical stress at matrix/filler interface of nanocomposites (Johari et al 2016). High aspect ratio of CNW is vital because it strengthens various mechanical properties of the composites.…”

Section: Chemical Analysismentioning

confidence: 99%

Effect of Hydrolysis Treatment on Cellulose Nanowhiskers from Oil Palm (Elaeis guineesis) Fronds: Morphology, Chemical, Crystallinity, and Thermal Characteristics

et al. 2016

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Oil palm fronds biomass was used as a source for isolation of cellulose nanowhiskers (CNW), and its subsequent characterization was done. Non-cellulosic components such as lignin, hemicellulose, and pectin were removed from the biomass by chemimechanical alkaline hydrogen peroxide method followed by sulphuric acid hydrolysis having different time duration of hydrolysis. Apart from the progressive reduction in peaks characteristic of hemicellulose and lignin dissolution, FTIR spectroscopy analysis showed that there were no significant variations in peak positions, signifying that the hydrolysis did not affect the chemical structure of CNW. FESEM showed that there was gradual reduction in the aggregated structure of fiber due to bleaching. Nanoscale structure of CNW was revealed by TEM. XRD analysis revealed that the natural structure of cellulose I polymorph was maintained irrespective of the hydrolysis time. High thermal stability and aspect ratio of the extracted CNW demonstrated its suitability as a reinforcement material in nanocomposites.

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“…As a result, PLLA has been used as an excellent substitute to some other widely used petroleum‐based polymeric materials . However, the applications of the PLLA are often limited by the relative poor toughness and heat resistance of the PLLA, mainly due to its low crystallinity caused by slow crystallization rate . To this end, some interesting approaches have been explored, such as using nucleating agents, including both inorganic and organic agents, to accelerate crystallization process, and blending the PLLA material with other flexible polymers, such as PEG …”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11][12] However, the applications of the PLLA are often limited by the relative poor toughness and heat resistance of the PLLA, mainly due to its low crystallinity caused by slow crystallization rate. [13][14][15][16] To this end, some interesting approaches have been explored, such as using nucleating agents, including both inorganic and organic agents, [17][18][19][20][21] to accelerate crystallization process, and blending the PLLA material with other flexible polymers, such as PEG. [22][23][24][25] Inorganic agents are usually called physical nucleating agents.…”

Section: Introductionmentioning

confidence: 99%

Effects of divinylbenzene‐maleic anhydride copolymer hollow microspheres on crystallization behaviors, mechanical properties and heat resistance of poly(l‐lactide acid)

Qiao

Wang

et al. 2019

Polymers for Advanced Techs

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Divinylbenzene‐maleic anhydride copolymer hollow microspheres (DMs) were used as novel organic nucleating agents to promote crystallization of poly(l‐lactide acid) (PLLA). The effects of these DMs on crystal behaviors of the PLLA were investigated by differential scanning calorimeter (DSC), polarizing optical microscopy (POM), and wide angle X‐ray diffraction (WAXD). Both isothermal and non‐isothermal processes in DSC demonstrated that the DMs significantly altered the crystal behaviors of PLLA as both crystallization velocity and degree of crystallinity increased with increasing DM loadings from 0 to 3%. Our POM results also indicated that as nucleating agents, the DMs promoted nucleating densities and decreased spherulitic sizes. In addition, WAXD suggeted that the addition of DMs did not induce new types of crystals. Finally, our results showed that the ductility of the PLLA was enhanced by a small amount of DMs during the PLLA crystallization process since 0.5% DMs added to the PLLA resulted in 1.4‐fold increase in the elongation at break in comparision with the neat PLLA.

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Influence of surface modified cellulose microfibrils on the improved mechanical properties of poly (lactic acid)

Cited by 54 publications

References 42 publications

Reinforcement effect of nanocellulose on thermal stability of nitrile butadiene rubber (NBR) composites

Reinforcement effect of nanocellulose on thermal stability of nitrile butadiene rubber (NBR) composites

Effect of Hydrolysis Treatment on Cellulose Nanowhiskers from Oil Palm (Elaeis guineesis) Fronds: Morphology, Chemical, Crystallinity, and Thermal Characteristics

Effects of divinylbenzene‐maleic anhydride copolymer hollow microspheres on crystallization behaviors, mechanical properties and heat resistance of poly(l‐lactide acid)

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