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Study on the Flammability, Crystal Behaviors and Mechanical Performance of Polyamide 11 Composites by Intercalated Layered Double Hydroxides. Int J Mol Sci 2022; 23:ijms232112818. [PMID: 36361607 PMCID: PMC9658681 DOI: 10.3390/ijms232112818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/26/2022] Open
Abstract
Sulfamic acid-intercalated MgAl-LDH (SA-LDH) was prepared by an anion exchange method, and its structure was characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). SA-LDH was introduced into polyamide 11 (PA11) by melt blending and to enhance the flame retardancy and mechanical properties. The scanning electron microscope (SEM) and XRD data showed that the lamellar structure of SA-LDH was partly disrupted. The cone calorimeter (CCT) results demonstrated that SA-LDH could effectively decrease the value of heat release rate, which may be ascribed to the better distribution of SA-LDH compared to LHD in the PA11 matrix. The effects of SA-LDH on the crystal behaviors of PA11 were investigated by XRD and differential scanning calorimetry (DSC), indicating that SA-LDH could induce the formation of new crystal forms and served as a heterogeneous nucleating agent. The mechanical progress caused by the incorporation of SA-LDH was correlated with compatibility improvement between SA-LDH and PA11.
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Hajibeygi M, Javadi‐gharyesafa A. Simultaneous modification of Hydrotalcite‐silicate nano‐layers as reinforcement of a new polyamide: thermal properties and flammability study. POLYM INT 2022. [DOI: 10.1002/pi.6448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mohsen Hajibeygi
- Department of Organic and Polymer Chemistry, Faculty of Chemistry Kharazmi University 15719‐14911 Tehran Iran
| | - Aliasghar Javadi‐gharyesafa
- Department of Organic and Polymer Chemistry, Faculty of Chemistry Kharazmi University 15719‐14911 Tehran Iran
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30 Years of Vicente Rives’ Contribution to Hydrotalcites, Synthesis, Characterization, Applications, and Innovation. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6040060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hydrotalcite is the name of a mineral discovered in Sweden in 1842 whose formula is Mg6Al2(OH)16CO3·4H2O and presents a layered crystal structure that consists of positively charged hydroxide layers neutralized by interlayer anions as carbonate, also containing water molecules. The ease of their synthesis and the possibility of incorporating other layer cations and interlayer anions have made this type of layered double hydroxides (LDH) a group of very interesting materials for industry. In addition to LDH and due to the name of the most representative mineral, this group of compounds is commonly called hydrotalcite-like materials, or simply hydrotalcites. Another way of referring to them is as anionic clays because of their layered structure but, unlike classical clays, their layers are positive and their interlayers are anionic. The main fields of application of these solids comprise catalysis, catalyst support, anion scavengers, polymer stabilizers, drug carriers, or adsorbents. This paper briefly summarizes some of the work carried out by Professor Rives over more than thirty years, focused, among other topics, on the study of the synthesis, characterization, and applications of hydrotalcites. This research has led him to train many researchers, to collaborate with research groups around the world and to publish reference papers and books in this field. This contribution, written to be included in the Special Issue “A Themed Issue in Honor of Prof. Dr. Vicente Rives”, edited on the occasion of his retirement, only shows a small part of his scientific research and intends to value and recognize his cleverness and his enormous scientific and human quality.
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Bubeníková M, Ecorchard P, Szatmáry L, Mrózek O, Salačová P, Tolasz J. Sorption of Sr(II) onto nanocomposites of graphene oxide-polymeric matrix. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-017-5688-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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One-step synthesized azo-dye modified Mg-Al LDH reinforced biobased semi-aromatic polyamide containing naphthalene ring; study on thermal stability and optical properties. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1212-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang Y, Chien CM, Chiao SM, Lee TY. Reactive compatibilization of polyetherimide with polyamide 6,6: Part 2. Effect of epoxy-functionalized polyamide. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1621-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Xu W, Wang S, Li A, Wang X. Synthesis of aminopropyltriethoxysilane grafted/tripolyphosphate intercalated ZnAl LDHs and their performance in the flame retardancy and smoke suppression of polyurethane elastomer. RSC Adv 2016. [DOI: 10.1039/c6ra06713a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis procedure of APTS grafted/P3O105− intercalated LDHs.
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Affiliation(s)
- Wenzong Xu
- School of Materials Science and Chemical Engineering
- Anhui Jianzhu University
- Hefei 230601
- P. R. China
- State Key Lab of Fire Science
| | - Shaoqing Wang
- School of Materials Science and Chemical Engineering
- Anhui Jianzhu University
- Hefei 230601
- P. R. China
| | - Aijiao Li
- School of Materials Science and Chemical Engineering
- Anhui Jianzhu University
- Hefei 230601
- P. R. China
| | - Xiaoling Wang
- School of Materials Science and Chemical Engineering
- Anhui Jianzhu University
- Hefei 230601
- P. R. China
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Reactive compatibilization of polyetherimide with polyamide 6,6: part 1. Effect of functionalizing polyetherimide. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1516-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hajibeygi M, Shabanian M, Moghanian H, Khonakdar HA, Häußler L. Development of one-step synthesized LDH reinforced multifunctional poly(amide–imide) matrix containing xanthene rings: study on thermal stability and flame retardancy. RSC Adv 2015. [DOI: 10.1039/c5ra05565b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New exfoliated poly(amide–imide)/Zn–Al layered double hydroxide (LDH) nanocomposites were synthesized by solution intercalation using synthesized organo-modified LDH (OLDH) as nanofiller obtained by one-step method.
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Affiliation(s)
- M. Hajibeygi
- Faculty of Chemistry
- Kharazmi University
- 15719-14911 Tehran
- Iran
| | - M. Shabanian
- Faculty of Chemistry and Petrochemical Engineering
- Standard Research Institute (SRI)
- Karaj
- Iran
| | - H. Moghanian
- Department of Chemistry
- Dezful Branch
- Islamic Azad University
- Dezful
- Iran
| | - H. A. Khonakdar
- Department of Polymer Engineering
- Faculty of Engineering
- South Tehran Branch
- Islamic Azad University
- Tehran
| | - L. Häußler
- Leibniz-Institut für Polymerforschung Dresden e.V
- D-01069 Dresden
- Germany
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Sisti L, Totaro G, Fiorini M, Celli A, Coelho C, Hennous M, Verney V, Leroux F. Poly(butylene succinate)/layered double hydroxide bionanocomposites: Relationships between chemical structure of LDH anion, delamination strategy, and final properties. J Appl Polym Sci 2013. [DOI: 10.1002/app.39387] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Laura Sisti
- Dipartimento di Ingegneria Civile; Chimica, Ambientale e dei Materiali, Università di Bologna; Via Terracini 28; 40131; Bologna; Italy
| | - Grazia Totaro
- Dipartimento di Ingegneria Civile; Chimica, Ambientale e dei Materiali, Università di Bologna; Via Terracini 28; 40131; Bologna; Italy
| | - Maurizio Fiorini
- Dipartimento di Ingegneria Civile; Chimica, Ambientale e dei Materiali, Università di Bologna; Via Terracini 28; 40131; Bologna; Italy
| | - Annamaria Celli
- Dipartimento di Ingegneria Civile; Chimica, Ambientale e dei Materiali, Università di Bologna; Via Terracini 28; 40131; Bologna; Italy
| | - Christian Coelho
- Institut de Chimie de Clermont Ferrand (ICCF)-UMR 6296 Université Blaise Pascal; 24 Avenue des Landais; 63177; AUBIERE (cedex); France
| | - Mohammed Hennous
- Institut de Chimie de Clermont Ferrand (ICCF)-UMR 6296 Université Blaise Pascal; 24 Avenue des Landais; 63177; AUBIERE (cedex); France
| | - Vincent Verney
- Institut de Chimie de Clermont Ferrand (ICCF)-UMR 6296 Université Blaise Pascal; 24 Avenue des Landais; 63177; AUBIERE (cedex); France
| | - Fabrice Leroux
- Institut de Chimie de Clermont Ferrand (ICCF)-UMR 6296 Université Blaise Pascal; 24 Avenue des Landais; 63177; AUBIERE (cedex); France
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Effects of the Addition ofOrtho- andPara-NH2Substituted Tetraphenylporphyrins on the Structure of Nylon 66. INT J POLYM SCI 2013. [DOI: 10.1155/2013/323854] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The synthetic tetrapyrrole macrocycles, such as porphyrins (H2P) and phthalocyanines (H2Pc), exhibit interesting physicochemical properties suitable to be used in modern technology. For many applications, those species should be trapped or fixed inside graphite, hydrotalcites, silica, TiO2, or polymers. Methodologies for the optimization of the properties of porphyrins, trapped or fixed inside polymers, have been barely developed. Our research works in the development of methodologies for the optimization of incorporation and display of properties of tetrapyrrole macrocycles inside inorganic, polymeric, or hybrid networks. This paper shows some results about the effect of the spatial disposition of the amine (–NH2) groups attached on the periphery of substituted tetraphenylporphyrins, on the Nylon 66 structure and on the display of the physicochemical properties of the trapped macrocycles. Nylon 66 was synthesized from adipoyl chloride and hexamethylenediamine in presence of tetraphenylporphyrins substituted with –NH2groups localized at theortho- orpara-positions of the phenyls. Cobalt complexes formation was used to quantify the amount of porphyrins in the polymer fibers. Characterization results show that the spatial position of amine groups of the porphyrins has important structural and textural effect on the Nylon 66 fibers and on the fluorescence of the porphyrins integrated into the fibers.
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Herrero M, Martínez-Gallegos S, Labajos F, Rives V. Layered double hydroxide/polyethylene terephthalate nanocomposites. Influence of the intercalated LDH anion and the type of polymerization heating method. J SOLID STATE CHEM 2011. [DOI: 10.1016/j.jssc.2011.08.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang L, Li B, Yang M, Chen C, Liu Y. Effect of Ni cations and microwave hydrothermal treatment on the related properties of layered double hydroxide–ethylene vinyl acetate copolymer composites. J Colloid Interface Sci 2011; 356:519-25. [PMID: 21316061 DOI: 10.1016/j.jcis.2011.01.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 01/08/2011] [Accepted: 01/18/2011] [Indexed: 11/17/2022]
Affiliation(s)
- Lili Wang
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science, Northeast Forestry University, Harbin, PR China.
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