Enhanced oxygen barrier properties of poly(lactic acid) via oxygen scavenging strategy combining with uniaxial stretching

Pan, Zeyuan; Ju, Qing; Zhao, Dong; Shen, Yucai; Wang, Tingwei

doi:10.1016/j.ijbiomac.2021.03.161

Cited by 7 publications

(11 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydroxyl terminated polybutadiene (HTPB) is a liquid rubber containing hydroxyl groups and has diverse applications such as binder in composites, toughness enhancer of thermosets as well as oxygen scavenger. [19][20][21][22] To date, there have been no research studies published on the effects of hydroxy value and viscosity of HTPB on the toughness of PLA. Therefore, we used four kinds of HTPB with different hydroxyl values and viscosities to toughen and modify PLA.…”

Section: Introductionmentioning

confidence: 99%

Enhancing toughness of poly(lactic acid) by regulating the hydroxyl value and viscosity of hydroxyl terminated polybutadiene

Zhang

Tang

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancing toughness of poly(lactic acid) by regulating the hydroxyl value and viscosity of hydroxyl terminated polybutadiene

Zhang

Tang

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…[101][102][103][104] Pan prepared PLLA films with significantly enhanced mechanical and O 2 barrier properties by combining O 2 scavenging strategy with uniaxial stretching. 105 Chen et al made PLLA/SiO 2 nanocomposites with high toughness and balanced stiffness by uniaxial pre-stretching. After prestretching, the elongation at break increased to 168%.…”

Section: Blowing and Stretchingmentioning

confidence: 99%

“…So far, some research has been reported on the influence of solid‐state drawing on the properties of PLLA‐based composites 101–104 . Pan prepared PLLA films with significantly enhanced mechanical and O 2 barrier properties by combining O 2 scavenging strategy with uniaxial stretching 105 . Chen et al made PLLA/SiO 2 nanocomposites with high toughness and balanced stiffness by uniaxial pre‐stretching.…”

Section: Modification Of Pllamentioning

confidence: 99%

Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Yun,

Liu,

et al. 2024

Packag Technol Sci

View full text Add to dashboard Cite

Plastics have remained the best choice for fruit and vegetable packaging due to their exceptional transparency, flexibility, optional good barrier and cost‐effectiveness. However, a large number of plastics end up in the environment after serving their intended purpose and persist there for centuries. Since worldwide attention to environmental issues has become an irreversible historical trend, cost‐effective renewable biodegradable packaging material is highly desirable for the packaging industry to satisfy both industrial demands as well as consumer expectations. Poly (L‐lactic acid) (PLLA), a renewable biodegradable polymer derived from biomass, has been widely studied as a very attractive polymer for food packaging applications. However, its brittle nature and medium CO2/O2 permeability are not friendly for its utilisation in the aspect of fresh agricultural products packaging. In such a context, great efforts have been devoted to improvements in the mechanical and permeability of PLLA to meet the requirements of food packaging. The main purpose of the review is to summarise the mechanical and permeability properties of composite films developed by the incorporation of toughness reinforcing agents into the PLLA matrix. The elongation at break of PLA can be increased up to 250 times by modification, and the CO2 permeability of PLA can be increased by 2–3 times by modification. We also elaborate on studies of the preservation effect of PLLA composite films on fresh fruits and vegetables.

show abstract

“…[7,8] However, the poor water and gas barrier properties of PLA limit its use in the manufacture of food packaging. [15][16][17] Several strategies were developed to improve the barrier properties of polymers, such as polymer surface modification by coating, [18,19] active barrier using oxygen scavengers, [20][21][22] blending and multilayer films. [22][23][24][25] However, the most frequent and promising method for PLA is its use as passive barrier in the form of nanocomposites.…”

mentioning

confidence: 99%

“…[15][16][17] Several strategies were developed to improve the barrier properties of polymers, such as polymer surface modification by coating, [18,19] active barrier using oxygen scavengers, [20][21][22] blending and multilayer films. [22][23][24][25] However, the most frequent and promising method for PLA is its use as passive barrier in the form of nanocomposites. [26][27][28][29][30] This method consists in the incorporation of impermeable fillers, such as organomontmorillonites (OMMts), [28,31,32] graphene [29] and carbon nanotube [27,33] into the polymer matrix to increase the diffusion time of small molecular by a tortuosity effect.…”

mentioning

confidence: 99%

Effect of different type of organomontmorillonites on oxygen permeability of PLA‐based nanocomposites blown films

Adrar

Ajji

2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

In this work, four different organomontmorillonites (OMMts): Nanomer® I.30E, Dellites® 43B and 67G and Nanolin® DK2 were selected to prepare OMMt–poly (lactic acid) (PLA) nanocomposites blown films, using a two‐step process. Three weight percentage of each OMMt was mixed with PLA in a twin‐screw extruder first and then those masterbatches were used to produce OMMt–PLA nanocomposites films using a single‐screw extruder. The degree of interaction between OMMts and PLA was quantified by determining the interaction energy density (β) from the Nishi‐Wang equation. The structure and dispersion of OMMts in the PLA matrix were examined using X‐ray diffraction and transmission electron microscopy, showing that all nanocomposites, except D67G‐PLA, had intercalated structure with similar dispersion. Thermal stability and crystallinity of OMMt–PLA nanocomposites films were investigated by thermogravimetric analysis and differential scanning calorimetry (DSC), respectively. Concern the oxygen permeability, a reduction was reported by all nanocomposites. Nevertheless, the rate of decrease is different, particularly with I.30E, DK2, and D43B that presented similar dispersion. This can be related to the difference of degree compatibility of these OMMt with PLA, as shows the values of interaction parameter. The optimum oxygen barrier performance was achieved by D43B that showed the best interactions with PLA.

show abstract

Enhanced oxygen barrier properties of poly(lactic acid) via oxygen scavenging strategy combining with uniaxial stretching

Cited by 7 publications

References 44 publications

Enhancing toughness of poly(lactic acid) by regulating the hydroxyl value and viscosity of hydroxyl terminated polybutadiene

Enhancing toughness of poly(lactic acid) by regulating the hydroxyl value and viscosity of hydroxyl terminated polybutadiene

Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Effect of different type of organomontmorillonites on oxygen permeability of PLA‐based nanocomposites blown films

Contact Info

Product

Resources

About