Mechanical and aging resistance properties of polypropylene (PP) reinforced with nanocellulose/attapulgite composites (NCC/AT)

Liu, Yang; Zhang, Shaobo; Wang, Xin; Pan, Yanfei; Zhang, Feiran; Huang, Jian

doi:10.1080/09276440.2019.1600971

Cited by 20 publications

(16 citation statements)

References 55 publications

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“…The work of Liu et al [ 61 ] showed that the tensile strength after the introduction of cellulose nanoparticles increased by almost 15% compared to a pure polypropylene matrix (approx. 28 to 33 MPa) and a reduction in impact strength (approx.…”

Section: Resultsmentioning

confidence: 99%

“…Similar conclusions came from Ljungberg et al [ 73 ], who strengthened the polypropylene matrix with nanocellulose, and thanks to which they obtained a nanocomposite with satisfactory strength parameters, emphasizing that the quality of the filler dispersion plays a key role in the final properties of the tested systems. However, according to Liu et al [ 61 ], the addition of nanocellulose to the polypropylene matrix significantly increased the aging resistance of the composite systems tested. Based on the review of the available literature, it can be concluded that the use of nanocellulose as a filler for polymer matrices results in obtaining very good strength parameters of nanocomposites, and, consequently, unique properties of the final materials.…”

Section: Introductionmentioning

confidence: 97%

“…In recent years, there has been an increasing interest in renewable lignocellulosic fillers in the production of polymer composites. Composites with a polymer matrix reinforced with lignocellulose additives are known [ 49 , 50 , 51 , 52 , 53 , 54 , 55 ], as well as with a filler in the form of micrometric cellulose [ 14 , 56 , 57 , 58 ], although in recent years more and more attention has been focused on nanocellulose [ 9 , 59 , 60 , 61 , 62 , 63 ]. Polymer composites containing nanometric particle filler can have very good strength characteristics [ 9 , 64 , 65 ], strong barriers to gases and water vapor [ 66 ] and transparency [ 67 ], which determine possible applications in the packaging, construction, automotive and medical industries [ 6 , 60 , 65 , 68 , 69 , 70 , 71 , 72 ].…”

Section: Introductionmentioning

confidence: 99%

“…Particular interest has been focused on the context of the application potential of systems of polypropylene with nanocellulose [ 61 , 73 , 74 , 75 , 76 , 77 ]. Sojoudiasli et al [ 77 ] proved in their work that the produced polypropylene systems with 2 wt.…”

Section: Introductionmentioning

confidence: 99%

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Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

et al. 2021

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In the last few years, the scientific community around the world has devoted a lot of attention to the search for the best methods of obtaining nanocellulose. In this work, nanocellulose was obtained in enzymatic reactions with strictly defined dispersion and structural parameters in order to use it as a filler for polymers. The controlled enzymatic hydrolysis of the polysaccharide was carried out in the presence of cellulolytic enzymes from microscopic fungi—Trichoderma reesei and Aspergillus sp. It has been shown that the efficiency of bioconversion of cellulose material depends on the type of enzymes used. The use of a complex of cellulases obtained from a fungus of the genus Trichoderma turned out to be an effective method of obtaining cellulose of nanometric dimensions with a very low polydispersity. The effect of cellulose enzymatic reactions was assessed using the technique of high-performance liquid chromatography coupled with a refractometric detector, X-ray diffraction, dynamic light scattering and Fourier transform infrared spectroscopy. In the second stage, polypropylene composites with nanometric cellulose were obtained by extrusion and injection. It was found by means of X-ray diffraction, hot stage optical microscopy and differential scanning calorimetry that nanocellulose had a significant effect on the supermolecular structure, nucleation activity and the course of phase transitions of the obtained polymer nanocomposites. Moreover, the obtained nanocomposites are characterized by very good strength properties. This paper describes for the first time that the obtained cellulose nanofillers with defined parameters can be used for the production of polymer composites with a strictly defined polymorphic structure, which in turn may influence future decision making about obtaining materials with controllable properties, e.g., high flexibility, enabling the thermoforming process of packaging.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

et al. 2021

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“…The bacterial cellulose used to make electrical insulating paper enhanced its aging resistance [ 144 ]. The addition of nanocrystalline cellulose/attapulgite (AT) to polypropylene (PP) improves aging resistance, thermal stability, and gas barrier properties [ 145 ]. However, the addition of NCC/AT to PP decreased the mechanical properties and the degradation degree of PP.…”

Section: Cellulose Aging Resistancementioning

confidence: 99%

Micro- and Nanocellulose in Polymer Composite Materials: A Review

et al. 2021

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The high demand for plastic and polymeric materials which keeps rising every year makes them important industries, for which sustainability is a crucial aspect to be taken into account. Therefore, it becomes a requirement to makes it a clean and eco-friendly industry. Cellulose creates an excellent opportunity to minimize the effect of non-degradable materials by using it as a filler for either a synthesis matrix or a natural starch matrix. It is the primary substance in the walls of plant cells, helping plants to remain stiff and upright, and can be found in plant sources, agriculture waste, animals, and bacterial pellicle. In this review, we discussed the recent research development and studies in the field of biocomposites that focused on the techniques of extracting micro- and nanocellulose, treatment and modification of cellulose, classification, and applications of cellulose. In addition, this review paper looked inward on how the reinforcement of micro- and nanocellulose can yield a material with improved performance. This article featured the performances, limitations, and possible areas of improvement to fit into the broader range of engineering applications.

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Surface grafting stearic acid to the coupling agent on attapulgite: A reinforced filler in castor oil‐based polyurethane coating

Wang,

Shen,

Yang

et al. 2023

J of Applied Polymer Sci

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Developing economic controlled‐release fertilizers (CRFs) with superior performance is an ongoing and important research area. This work investigated the co‐modification of acid‐activated attapulgite (ac‐AT) to optimize its surface properties for polyurethane (PU) composite applications, specifically in the coatings of CRFs. The modified ac‐AT (MAT) rods were obtained through treatment with 2.0 wt.% KH‐560 coupling agent and in‐situ grafting with stearic acid (SA). Varying the addition amount of SA resulted in the synthesis of different MAT fillers. Along with the adjustment of the filling amount, the properties of the MAT/PU composites were controlled. Notably, applying 1.5 wt.% SA onto the KH‐560 treated ac‐AT produced MAT with a contact angle of 100.8°, enhancing hydrophobicity and dispersion within the PU matrix. Furthermore, at a filling amount of 9.0 wt.%, the MAT/PU composite exhibited the most favorable properties with a tensile strength of 2.37 MPa, making it the optimal coating for CRFs with 75% nutrient release within 46 days while the coating efficiency was 3.0 wt.%. This co‐modification approach shows great potential in enhancing filler properties and promoting their application in organic coatings.

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Mechanical and aging resistance properties of polypropylene (PP) reinforced with nanocellulose/attapulgite composites (NCC/AT)

Cited by 20 publications

References 55 publications

Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

Micro- and Nanocellulose in Polymer Composite Materials: A Review

Surface grafting stearic acid to the coupling agent on attapulgite: A reinforced filler in castor oil‐based polyurethane coating

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