Fiber-induced crystallization in polymer composites: A comparative study on poly(lactic acid) composites filled with basalt fiber and fiber powder

Pan, Hongwei; Wang, Xiangyu; Jia, Shiling; Lu, Zifeng; Bian, Junjia; Han, Lijing; Zhang, Huiliang

doi:10.1016/j.ijbiomac.2021.04.104

Cited by 27 publications

(6 citation statements)

References 31 publications

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“…PLA-based products can be manufactured in a similar way to polyolefins, for example by extrusion, injection and blow molding. [294][295][296][297][298] PLA is mainly applied in food packaging, transport, agriculture, biomedical, textile and electronics industries due to good thermoplasticity and processability, 299,300 the first application being the most important. In the case of PLA-based films for food packaging, in addition to the polymer blends presented in Table 1, PLA was also used for the production of active [301][302][303][304][305][306][307][308][309][310] and intelligent [311][312][313][314] packaging; however, these two categories of packaging are outside the scope of this review.…”

Section: Starch: Generalities and Gelatinizationmentioning

confidence: 99%

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Silva

Rios

Santana

2023

Polymers from Renewable Resources

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The limited degradation of synthetic polymers used in food packaging when discarded in the environment is a major concern for society. Therefore, industry and academia have sought to develop biodegradable and eco-friendly materials for single-use in packaging. An interesting alternative for the food industry is biodegradable polymeric films, which is why different biopolymers have been used in the production of sustainable packaging. It is worth mentioning that the use of biodegradable polymers is one of the most successful innovations in the industry to address issues related to the environment. Among the available raw materials, starch extracted from different renewable sources is very promising for this purpose, due to its abundance, low-cost compared to other polymers and ability to produce non-toxic films. However, when used alone, pure starch has many limitations, which can be overcome by developing a mixture with other polymers (polymer blends), preferably from renewable and biodegradable sources, such as poly(lactic acid) (PLA). In this context, the absence of literature reviews evidencing the results of the application of films in foods led us to write this article, given the importance of polymer blends produced with different types of starch (cassava, corn, pea, potato, rice and wheat) and the PLA matrix. According to the results, it is clear that polymer blends based on PLA/Starch for food packaging are very promising, already being part of the industries solutions, aiming to minimize the large volume of plastic waste of petrochemical origin discarded in nature. Obviously, as with any technology, more research is needed to further improve the performance of the films, and while much research has made great strides, there are still limitations that prevent the commercialization of these materials.

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Section: Starch: Generalities and Gelatinizationmentioning

confidence: 99%

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Silva

Rios

Santana

2023

Polymers from Renewable Resources

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“…For instance, incorporating rigid fillers into the PLA matrix can improve the heat resistance and strength, but hardly any improvement in ductility. 12,13 Moreover, blending PLA with tough polymers, including traditional nonbiodegradable polymers (e.g., NR 14 ) and biodegradable polymers (e.g., PHA, 15 PBS, 16 PBAT 17 ), is a common and cost-effective toughening route. Blending PLA with traditional nonbiodegradable polymers shows relatively excellent toughening effect, but it is at the expense of its biodegradability, biocompatibility, and heat resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, an improvement in one property may lead to a deterioration in another. For instance, incorporating rigid fillers into the PLA matrix can improve the heat resistance and strength, but hardly any improvement in ductility 12,13 . Moreover, blending PLA with tough polymers, including traditional nonbiodegradable polymers (e.g., NR 14 ) and biodegradable polymers (e.g., PHA, 15 PBS, 16 PBAT 17 ), is a common and cost‐effective toughening route.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable poly(lactic acid)/poly(propylene carbonate) blend with enhanced mechanical properties and heat resistance by uniaxial pre‐stretching

Zheng,

Han,

Zheng

et al. 2024

Polymers for Advanced Techs

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Biodegradable poly(lactic acid)/poly(propylene carbonate) (PLA/PPC) blends with balanced strength, ductility, and heat resistance were prepared by combining the modification of 30 wt% PPC and uniaxial pre‐stretching at 60°C. The undrawn PLA/PPC blend fractured in a brittle way due to the network structure composed of cohesional entanglements. After pre‐stretching, the elongation at break was increased to 229.4% at pre‐stretching ratio (PSR) of only 0.5, which should be attributed to the destruction of the network structure of cohesional entanglements and the orientation of PPC component in PLA matrix. With the increase of PSR, the modulus, strength at yielding, and break were improved obviously (2433.4, 76.1, and 98.3 MPa at PSR = 2.5) whereas the elongation at break (51.7% at PSR = 2.5) reduced gradually because of the formation of orientation, mesophase, and crystal phase. However, the elongation at break was still larger than that of neat PLA (6.8%) and undrawn PLA/PPC blend (12.3%), indicating that the uniaxial pre‐stretching was an effect way to strengthen and toughen PLA blends. Significantly, the heat resistance of ps‐PLA/PPC blend was increased obviously with increasing the PSR, which will promote the widespread application of the blends.

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“…It is well known that fiber surfaces are very smooth and chemically inert, and the lack of solid covalent bonds results in poor adhesion between the matrix and the fiber, 5 which prevents the fiber from taking full advantage of its many benefits. In order to improve the interfacial interaction, multiple methods such as coupling agent modification, [6][7][8][9][10] acidbase modification, [11][12][13] surface coating, [14][15][16] and plasma modification [17][18][19][20] have been used to modify the fiber. Treatment of acids and bases would inevitably cause defects and decreased strength of BF, while other surface treatment methods such as coating and plasma modification show unsatisfied improvement.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the mechanical properties of basalt fiber/nylon 6 composites by surface roughening and hydrogen bonding interaction

Li,

Zhang,

et al. 2024

Polymer Composites

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Inspired by the strong adhesion of mussels, basalt fibers (BFs) were modified with polydopamine and then composited with nylon 6. The effect of polydopamine content on the interfacial interactions and mechanical properties of the composites was investigated. In addition, silica nanoparticles were grown on the surface of polydopamine‐modified BFs to investigate the synergistic effect. The study revealed that the mechanical properties of the composites based on polydopamine‐modified BF were gradually enhanced with the increase of the dopamine coverage concentration, and gradually decreased after reaching the peak. 0.5 g/L concentration of dopamine solution modified BFs showed the best enhancement effect on nylon 6, and its tensile strength could reach 133.1 MPa, which was 28.5% higher than that of the unmodified composites. The tensile strength of the composites modified with both dopamine and silica nanoparticles reached 157 MPa, which was 51.7% higher than that of the unmodified composites. In addition, scanning electron microscope images of fracture sections confirmed the strong interfacial interaction between BF and PA6.Highlights The surface roughness of BF was increased by nano‐SiO2. Hydrogen bonding was formed between PDA and PA6. Physical interlock was formed between nano‐SiO2 and PA6. Tensile strength increased by 51.7% with both nano‐SiO2 and PDA. Stronger interfacial interaction leads to higher thermal stability.

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Fiber-induced crystallization in polymer composites: A comparative study on poly(lactic acid) composites filled with basalt fiber and fiber powder

Cited by 27 publications

References 31 publications

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Biodegradable poly(lactic acid)/poly(propylene carbonate) blend with enhanced mechanical properties and heat resistance by uniaxial pre‐stretching

Enhancing the mechanical properties of basalt fiber/nylon 6 composites by surface roughening and hydrogen bonding interaction

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