Effect of reactive functionalization on properties and degradability of poly(lactic acid)/poly(vinyl acetate) nanocomposites with cellulose nanocrystals

Haque, Md. Minhaz‐Ul; Puglia, Debora; Fortunati, Elena; Pracellà, Mariano

doi:10.1016/j.reactfunctpolym.2016.11.003

Cited by 39 publications

(22 citation statements)

References 59 publications

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“…The polarized light micrographs of the films showed that PLA/CNW and PLA/CNW/S films after degradation showed degradation points (Figure 3) more evident than observed in neat PLA. According to Haque et al 24 , the holes By the tensile test, the cotton specimens before and after 05 five days of exposure to the garden soil presented a tensile strength of (4.3 ± 0.6) MPa and (2.0 ± 0.7) MPa, on the surface of samples can be formed by the degradation of the interspherulitic amorphous phase regions or between the crystalline regions due to enzymatic degradation 25,26 . The nucleating efffect of CNW and CNW/S on the PLA nanocomposites 11,20,27 probably contributed to this behavior.…”

Section: Visual Inspection and Polarized Light Microscopymentioning

confidence: 98%

“…The nucleating efffect of CNW and CNW/S on the PLA nanocomposites 11,20,27 probably contributed to this behavior. Furthermore, the surfactant itself also enhances the disintegration rate of PLA/CNW/S nanocomposites in the composting process, because it induces the formation of a porous structure in the PLA/CNW/S nanocomposites and increases nanocomposites accessibility to water and microorganisms 25,28 .…”

Section: Visual Inspection and Polarized Light Microscopymentioning

confidence: 99%

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Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

et al. 2018

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Due to its ester bonds, poly(lactic acid) (PLA) undergoes biodegradation in humid environments, attracting market attention. The goal of this work was to observe the biodegradation in garden soil of PLA nanocomposites with neat (PLA/CNW) and surfactant modified cellulose nanowhiskers (PLA/ CNW/S). Three types of surfactants were tested: poly(ethylene glycol) monooleate (PEGMONO) and poly(ethylene glycol) with molecular weight of 300 and 1000 Da. The films were obtained by solution casting, cut in strips of (2x2) cm and buried in garden soil, monitoring the temperature and humidity. After 90, 120 and 150 days changes were observed in the films by visual inspection, polarized light microscopy, thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The results showed that the addition of surfactant favored the biodegradation of nanocomposites and that PLA/CNW/PEG1000 showed the fastest biodegradation rate.

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Section: Visual Inspection and Polarized Light Microscopymentioning

confidence: 98%

Section: Visual Inspection and Polarized Light Microscopymentioning

confidence: 99%

Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

et al. 2018

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“…Peaks were realized at almost 755 cm −1 and 869 cm −1 which were associated with –C–C– stretching in crystalline region and –C–C– stretching in amorphous region of PLA, respectively. Also, absorption band was observed at 1037 cm −1 due to the OH bending . It can be said that for LDPE80/PLA20 polymer blending peaks were the same with neat LDPE due to the high amount of LDPE.…”

Section: Resultsmentioning

confidence: 88%

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Arslan

Dilsiz

2020

J of Applied Polymer Sci

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In this study, mixing petroleum-based low-density polyethylene (LDPE) with biodegradable poly(lactic acid) (PLA) is used as polymer matrix. Boron compounds, metal hydroxides, melamine (MLM), ammonium polyphosphate (APP), and pentaerythritol (PER) were used as reinforcement materials to improve flame resistance of polymer matrix. The composite materials were characterized by Fourier transform infrared spectroscopy, limiting oxygen index (LOI), thermogravimetric analysis, mechanical test, and scanning electron microscopy analyses. The LOI analysis showed that for samples, which included MLM, APP, and PER, the LOI values were dramatically improved. Especially, the LOI value of sample Q (LDPE80/PLA20/APP30/PER15/MLM15/ZB3) was enhanced about 95.17% compared to polymer mixing.

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“…It is a better choice to improve the compatibility of the blend by in situ reaction instead of the addition of tailored copolymer . As we all known, both PLLA and PBS are polyesters containing the carboxyl and hydroxyl end groups that can react with many groups, such as isocyanate, epoxide, and phosphite .…”

Section: Introductionmentioning

confidence: 99%

Effect of triphenyl phosphite as a reactive compatibilizer on the properties of poly(_L‐lactic acid)/poly(butylene succinate) blends

et al. 2019

J of Applied Polymer Sci

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Reactive blending is an innovative method for the improvement of compatibility of polymer blend. In this work, poly ( L -lactic acid) and poly (butylene succinate) (PLLA/PBS) blends were prepared by melt blending to ameliorate the toughness of PLLA. Triphenyl phosphite (TPP) was introduced into the PLLA/PBS blends (80/20 by weight) to enhance their compatibility via reactive blending. The effects of TPP on the morphology and properties of PLLA/PBS blends were studied systematically. The increased torque during melt blending demonstrated that the compatibilizer successfully reacted with PLLA and PBS. The mechanical properties of the blends were exceedingly improved only with 0.5 wt% TPP. A reduction tendency of size of the dispersed phase was observed due to the improvement of compatibility. The DSC and DMA results indicate that the T g of PLLA decreased at a slow rate with the increasing content of TPP. This work provided a simple approach for preparing a kind of high toughed PLLA material.

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Effect of reactive functionalization on properties and degradability of poly(lactic acid)/poly(vinyl acetate) nanocomposites with cellulose nanocrystals

Cited by 39 publications

References 59 publications

Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Effect of triphenyl phosphite as a reactive compatibilizer on the properties of poly(_L‐lactic acid)/poly(butylene succinate) blends

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Effect of reactive functionalization on properties and degradability of poly(lactic acid)/poly(vinyl acetate) nanocomposites with cellulose nanocrystals

Cited by 39 publications

References 59 publications

Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

Soil Biodegradation of PLA/CNW Nanocomposites Modified with Ethylene Oxide Derivatives

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Effect of triphenyl phosphite as a reactive compatibilizer on the properties of poly(L‐lactic acid)/poly(butylene succinate) blends

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Product

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Effect of triphenyl phosphite as a reactive compatibilizer on the properties of poly(_L‐lactic acid)/poly(butylene succinate) blends