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Zhao M, Baker J, Jiang Z, Zhu Z, Wu HM, Wu JL, Kang WH, Sue HJ. Preparation of Well-Exfoliated Poly(ethylene- co-vinyl acetate)/α-Zirconium Phosphate Nanocomposites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:4550-4561. [PMID: 33826349 DOI: 10.1021/acs.langmuir.1c00146] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Poly(ethylene-co-vinyl acetate) (PEVAc) nanocomposites containing exfoliated α-zirconium phosphate (ZrP) have been prepared using a simple solution mixing method to improve their barrier and mechanical properties. ZrP was pre-exfoliated with a surfactant, followed by additional targeted surface functionalization and surfactant exchange to allow for hydrogen bonding of ZrP with the acetate functionality on PEVAc and to improve ZrP surface hydrophobicity. The solvent is found to play an important role in stabilizing ZrP exfoliation in the presence of PEVAc to retain full exfoliation and homogeneous dispersion upon the removal of the solvent. The PEVAc/ZrP nanocomposite exhibits greatly improved oxygen barrier, melt strength, and mechanical properties. The usefulness of the present study for the preparation of olefinic polymer nanocomposites is discussed.
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Affiliation(s)
- Mingzhen Zhao
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Joseph Baker
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Zhiyuan Jiang
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Zewen Zhu
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Hong-Mao Wu
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
- Polyolefin Department of Formosa Plastics Corporation, Mailiao, Yunlin County 63801, Taiwan
| | - Jen-Long Wu
- Polyolefin Department of Formosa Plastics Corporation, Mailiao, Yunlin County 63801, Taiwan
| | - Wen-Hao Kang
- Polyolefin Department of Formosa Plastics Corporation, Mailiao, Yunlin County 63801, Taiwan
| | - Hung-Jue Sue
- Department of Material Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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2
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Morita RY, Kloss JR, Barbosa RV, Soares BG, Silva LCOD, Silva ALND. Rheological and thermal properties of EVA-organoclay systems using an environmentally friendly clay modifiera. POLIMEROS 2020. [DOI: 10.1590/0104-1428.03420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | | | - Bluma Guenther Soares
- Universidade Federal do Rio de Janeiro, Brasil; Universidade Federal do Rio de Janeiro, Brasil
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3
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Shao L, Ji Z, Ma J, Xue C, Deng F. Morphology and interaction of nanocomposite foams formed with organo-palygorskite and ethylene-vinyl acetate copolymers. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1721-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Grison K, Pistor V, Scienza LC, Zattera AJ. The physical perspective on the solid and molten states associated with the mechanical properties of eco-friendly HDPE/ Pinus taedawood-plastic composites. J Appl Polym Sci 2015. [DOI: 10.1002/app.42887] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Karine Grison
- University of Caxias Do Sul - UCS/Post-graduate Program in Processes and Technology Engineering; Caxias Do Sul - RS Brazil
| | - Vinicius Pistor
- Federal University of Rio Grande Do Sul - UFRGS/Porto Alegre - RS; 91501-970 Brazil
| | | | - Ademir José Zattera
- University of Caxias Do Sul - UCS/Post-graduate Program in Processes and Technology Engineering; Caxias Do Sul - RS Brazil
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5
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Jia C, Zhang Q, Liao X, Zhu J, Wu L, Ni K, Yang Q, An Z, Li G. Hierarchical microstructure changes and the molecular mechanism of polypropylene under a critical failure strain during creep. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.04.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Zhang T, Yan H, Shen L, Fang Z, Zhang X, Wang J, Zhang B. Chitosan/Phytic Acid Polyelectrolyte Complex: A Green and Renewable Intumescent Flame Retardant System for Ethylene–Vinyl Acetate Copolymer. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503421f] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tao Zhang
- National & Local United Engineering Laboratory of Textile Fiber Materials and Processing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
- Department
of Packaging Engineering, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
| | - Hongqiang Yan
- Lab of
Polymer
Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, People’s Republic of China
| | - Lie Shen
- MOE Key Laboratory
of Macromolecular Synthesis and Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Zhengping Fang
- MOE Key Laboratory
of Macromolecular Synthesis and Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
- Lab of
Polymer
Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, People’s Republic of China
| | - Xianming Zhang
- National & Local United Engineering Laboratory of Textile Fiber Materials and Processing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
| | - Jiajun Wang
- National & Local United Engineering Laboratory of Textile Fiber Materials and Processing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
- Department
of Packaging Engineering, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
| | - Baoyue Zhang
- Department
of Packaging Engineering, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
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7
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Priya Dasan K, Unnikrishnan G, Purushothaman E. Mechanical, Solvent Imbibing, and Dielectric Behavior of Short Nylon Fiber/Poly(ethylene-co
-vinyl acetate) Composites. ADVANCES IN POLYMER TECHNOLOGY 2013. [DOI: 10.1002/adv.21374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Priya Dasan
- Material Chemistry Division; School of Advanced Sciences; VIT University; Vellore 632 014 India
| | - G. Unnikrishnan
- Polymer Science and Technology Laboratory; NITC; Calicut 673 601 India
| | - E. Purushothaman
- Department of Chemistry; University of Calicut; Calicut 673 635 India
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Francisquetti EL, Pistor V, Fiorio R, Andrade MZ, Zattera AJ, Jacobi MAM. Evaluation of mechanical properties and physical interactions of a ternary blend of poly(ethylene- co-octene)/poly(ethylene- co-vinyl acetate)/poly(vinyl chloride) in the molten state. J Appl Polym Sci 2013. [DOI: 10.1002/app.38775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Pistor V, Chiesa A, Ornaghi HL, Fiorio R, Zattera AJ. Influence of Processing Conditions on Productivity, Thermal and Rheological Properties of Reprocessed Low Density Polyethylene. INT POLYM PROC 2013. [DOI: 10.3139/217.2394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The market for recycled thermoplastic polymers is undergoing a sharp increase, although recyclate polymers are regarded as materials with inferior properties when compared to the virgin material. This study investigates the behavior of non-contaminated scraps of low density polyethylene (LDPE) from the plastic packaging industry after single processing stage, in terms of the productivity and the thermal and rheological properties. The LDPE used was reprocessed on a single-screw extruder (Miotto) of 90 mm screw diameter and L/D = 25. Three screw speeds (80, 90 and 100 min−1) were investigated at three processing temperatures (200, 250 and 300°C). The reprocessed materials were characterized by thermogravimetric analysis TGA, parallel plates rheometry and productivity. The results obtained by TGA showed a typical range of polyolefin degradation (350 to 450°C). The viscoelastic properties did not show significant changes in relation to the rheological behavior. Increasing the temperature and screw speed promoted a productivity gain of approximately 30%. This suggests that under the conditions studied it is possible to reprocess this material with good productivity ensuring its thermal, mechanical and rheological properties.
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Affiliation(s)
- V. Pistor
- Laboratory of Polymers (LPOL), Universidade de Caxias do Sul, Caxias do Sul, Brazil
| | - A. Chiesa
- Laboratory of Polymers (LPOL), Universidade de Caxias do Sul, Caxias do Sul, Brazil
| | - H. L. Ornaghi
- Laboratory of Composite Materials (LACOMP), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - R. Fiorio
- Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul (IFRS), Caxias do Sul, Brazil
| | - A. J. Zattera
- Laboratory of Polymers (LPOL), Universidade de Caxias do Sul, Caxias do Sul, Brazil
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Pistor V, Barbosa LG, Soares BG, Mauler RS. Relaxation phenomena in the glass transition of epoxy/N-phenylaminopropyl – POSS nanocomposites. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.10.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Pistor V, Ornaghi HL, Ferreira CA, Zattera AJ. Performance of poly(ethylene‐
co
‐vinyl acetate) nanocomposites using distinct clays. J Appl Polym Sci 2012. [DOI: 10.1002/app.34804] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vinicios Pistor
- LPOL/Universidade de Caxias do Sul, Caxias do Sul, RS, Brazil
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13
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Pistor V, Chiesa A, Zattera AJ. Estudo do reprocessamento de polietileno de baixa densidade (PEBD) reciclado do processamento de extrusão de filmes tubulares. POLIMEROS 2010. [DOI: 10.1590/s0104-14282010005000045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
O mercado de reciclagem para os polímeros termoplásticos encontra-se atualmente em acentuada ascensão. Os materiais reciclados são vistos como materiais de propriedades inferiores em relação ao material virgem. O presente trabalho avaliou as características viscoelásticas e térmicas do polietileno de baixa densidade (PEBD) reciclado. As amostras foram reprocessadas até dez vezes em condições extremas de processamento (300 °C/80 rpm) em uma extrusora monorosca, a fim de avaliar modificações estruturais nas suas propriedades. Foram realizadas análises de reometria oscilatória de placas paralelas e calorimetria exploratória de varredura (DSC). A partir das análises de reometria oscilatória foram calculados espectros de relaxação e retardação pelo programa de regularização não-linear (NLREG) e através das análises de DSC no primeiro aquecimento foram calculados os parâmetros cinéticos pelos métodos de Avrami e Freeman-Carroll. Os resultados do estudo reológico demonstraram que as amostras reprocessadas acima de quatro vezes apresentaram aumento da viscosidade complexa e dos módulos de armazenamento e perda, além de fenômenos de relaxação e retardação mais largos. Entretanto, os termogramas de DSC e os parâmetros cinéticos de fusão demonstraram que o PEBD estudado manteve sua estabilidade térmica, independentemente da modificação de suas características viscoelásticas.
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