Selectively localized nanosilica particles at the phase interface of PS/PA6/nanosilica composites with co-continuous structure via reactive extrusion

Published on Mar 1, 2019in Composites Science and Technology7.094
· DOI :10.1016/J.COMPSCITECH.2019.01.016
Jiang Wang4
Estimated H-index: 4
(Huda: Hubei University),
Qi Tang2
Estimated H-index: 2
(Huda: Hubei University)
+ 6 AuthorsDean Shi17
Estimated H-index: 17
(Huda: Hubei University)
Source
Abstract
Abstract Selectively dispersed functional nanoparticles within one phase or at the phase interface in polymer composites with co-continuous morphology is the most effective way to reduce the percolation threshold of the nanoparticles. In this study, amino-modified nanosilica particles (mSiO2) have been selectively localized at the interface of the PS/PA6/mSiO2 composites with co-continuous morphology via reactive extrusion. Styrene maleic anhydride (SMA) with different maleic anhydride (MAH) contents is used as compatibilizers. Nanosilica particles can be induced to the interface of PS and PA6 phases by SMA macromolecules through the chemical reaction between the amino groups on nanosilica particle surfaces and MAH groups in SMA macromolecules. The MAH content of SMA macromolecules has large effect on the distribution of nanosilica particles. When nanosilica particles are premixed with SMA2, whose MAH content is 23 wt% and more compatible to PA6 phase, only ∼26% of the nanosilica particles can be induced to the interface; However, when nanosilica particles are premixed with SMA3, which contains only 8 wt% of MAH and is more compatible to PS phase, nearly 95% of the nanosilica particles can be located at the interface. This work creates a new facile approach to prepare polymer composites where nanoparticles are selectively distributed at the phase interface.
📖 Papers frequently viewed together
15 Citations
12 Citations
1 Citations
References42
Newest
#1Jin Kim (KAIST)H-Index: 10
#2Ne Myo Han (HKUST: Hong Kong University of Science and Technology)H-Index: 6
Last. Seokwoo Jeon (KAIST)H-Index: 42
view all 6 authors...
Graphene aerogel (GA) has shown great promise as reinforcement of polymeric composites with exceptional electrical and mechanical characteristics. Although there has been significant progress in controlling the structure of GAs, no studies have appeared on the enhanced properties of GAs by employing high-quality precursor graphene flakes (GFs). However, the assembly of high-quality GFs is particularly challenging due to their highly hydrophobic and agglomerative nature in aqueous media, and of t...
26 CitationsSource
In this work, the effect of TiO2 addition over morphological and ultraviolet (UV) blocking properties of poly(lactic acid) (PLA) and poly(ɛ-caprolactone) (PCL) blends was investigated. The micrographs showed a partially co-continuous structure in the PLA/PCL blend with 42/58 (wt %/wt %) and the TiO2 nanoparticles addition leads to a structural phase inversion, i.e., continuous PCL and partially continuous PLA with a dispersed portion. TiO2 nanoparticles were observed to be preferably localized a...
17 CitationsSource
#1Ying ShenH-Index: 5
#2Tingting ZhangH-Index: 6
Last. Yong WangH-Index: 44
view all 6 authors...
Cocontinuous PLA/EVA (60/40 wt%) blends were filled with reduced graphene oxides (0.1–3 wt%) through the master batches of PLA/rGOs and EVA/rGOs, respectively. The results show that rGOs are located at the interface when the blend nanocomposites were prepared from PLA masterbatch. On the other hand, rGOs are located in EVA component when the blend nanocomposites were prepared from EVA/rGOs materbatch. The underlying mechanism for selective localization of rGOs in PLA/EVA was systematically inves...
22 CitationsSource
#1Tao Gong (Sichuan University)H-Index: 4
#2Rui-Ying Bao (Sichuan University)H-Index: 37
Last. Wei Yang (Sichuan University)H-Index: 41
view all 6 authors...
Polypropylene (PP) and five kinds of monodisperse polystyrene (PS) with different terminal relaxation times were used to explore the relationship between the mobility of polymer molecular chains and the coarsening process of immiscible polymer blends with a co-continuous morphology under quiescent melt annealing at different temperatures. The terminal relaxation time of all neat PP and PS was determined by a rheological approach to characterize the mobility of molecular chains. A selective disso...
9 CitationsSource
#1Tianyu Liu (Sichuan University)H-Index: 6
#2Rui Huang (Sichuan University)H-Index: 17
Last. Qiang Fu (Sichuan University)H-Index: 57
view all 5 authors...
Abstract Rapidly electro-active thermoplastic polyurethane (TPU)/polylactide (PLA) shape memory polymer (SMP) blends via phase morphology control and incorporation of conductive multi-walled carbon nanotubes (MWCNTs) were achieved by simple and efficient melt blending in this work. Binary TPU/PLA blends with various composition ratios were firstly prepared, and the effect of phase morphology on shape memory behavior was studied. The optimum shape memory behavior was observed for TPU50/PLA50 blen...
52 CitationsSource
#1Jianwen Chen (CAS: Chinese Academy of Sciences)H-Index: 9
#2Xihua Cui (CAS: Chinese Academy of Sciences)H-Index: 6
Last. Kunyan Sui (Qingdao University)H-Index: 2
view all 5 authors...
Abstract In the current study, we propose an efficient thermodynamic method to precisely control multi-walled carbon nanotubes (MWCNTs) at the interface of a co-continuous PS/PMMA blend to design conductive polymer composites with ultralow percolation threshold. The achievement of the interfacial distribution of MWCNTs is attributed to the balance of π-π interactions between PS and MWCNT surfaces and dipole-dipole interactions between PMMA and carboxyl groups on MWCNT surfaces. It is found that ...
118 CitationsSource
#1Zhaokang Tu (Huda: Hubei University)H-Index: 3
#2Jiang Wang (Huda: Hubei University)H-Index: 4
Last. Robert K.Y. Li (CityU: City University of Hong Kong)H-Index: 48
view all 9 authors...
Abstract Improving the dispersion of graphene nanosheets (GN) in a polymer matrix is a critical step in lowering the percolation threshold of nanocomposites. In this paper, an effective method based on an electrostatic assembly process is reported. Polystyrene (PS) latex was first prepared by using hexadecyl trimethyl ammonium bromide (CTAB) as a cationic surfactant, which created positive charges on the surface of the PS micelles. An in situ demulsification process was then conducted by adding ...
41 CitationsSource
#1Changjiang Yu (Huda: Hubei University)H-Index: 3
#2Dean Shi (Huda: Hubei University)H-Index: 17
Last. Robert K.Y. Li (CityU: City University of Hong Kong)H-Index: 48
view all 8 authors...
Abstract This work aims at investigating the effect of a dual compatibilizer on the formation of co-continuous morphology of immiscible polymer blends. More specifically, the blend is composed of polystyrene (PS) and polyamide 6 (PA6), and the dual compatibilizer is composed of a low molecular weight styrene- co -maleic anhydride copolymer (M w = 11.500 g/mol, maleic anhydride MAH content = 14 wt%) denoted as l SMA and a high molecular weight SMA denoted as h SMA. The latter has a M w of 250,000...
23 CitationsSource
#1Jinrui HuangH-Index: 1
#2Yutian Zhu (CAS: Chinese Academy of Sciences)H-Index: 19
Last. Xiaoan NieH-Index: 2
view all 6 authors...
Abstract Trapping graphene at the interface of a poly(e-caprolactone) (PCL)/poly(lactic acid) (PLA) blend is achieved through the adsorption-desorption of polymer chains on the graphene surface. The resulting composite exhibits remarkably high thermal conductivity due to the graphene sheets being controlled at the interface of the polymer blend. At 0.53 vol%, when a good co-continuous structure is formed, the thermal conductivity of the graphene composite is nearly 4 times higher than that of th...
79 CitationsSource
#1Sijia Huang (UMN: University of Minnesota)H-Index: 6
#2Lian Bai (UMN: University of Minnesota)H-Index: 4
Last. Christopher W. MacoskoH-Index: 74
view all 5 authors...
Cocontinuous polymer blends have wide applications. They can form conductive plastics with improved mechanical properties. When one phase is extracted, they yield porous polymer sheets, which can be used as filters or membrane supports. However, the cocontinuous morphology is intrinsically unstable due to coarsening during static annealing. In this study, silica nanoparticles, ∼100 nm diameter, with different wetting properties were melt compounded in polyethylene/poly(ethylene oxide) blends. Ca...
41 CitationsSource
Cited By9
Newest
#1Tutuk Djoko Kusworo (UNDIP: Diponegoro University)H-Index: 8
#2Febio Dalanta (UNDIP: Diponegoro University)H-Index: 1
Last. Nur Hidayati Othman (UiTM: Universiti Teknologi MARA)H-Index: 11
view all 4 authors...
Abstract The fouling formation on the membrane’s surface has limited the membrane-based separation in industrial activities such as wastewater reclamation and seawater desalination. The nanomaterials' incorporation has been developed to enhance membrane performance. In this study, the combination of graphene oxide (GO) and zinc oxide (ZnO) nanoparticles to PSf membrane to improve the membrane performances to treat the petroleum refinery wastewater (PRW) was performed. The SEM-EDX result shows th...
Source
#1Xinhui Zheng (Shaanxi University of Science and Technology)H-Index: 2
#2Jie Fei (NPU: Northwestern Polytechnical University)
Last. Jianfeng Huang (Shaanxi University of Science and Technology)H-Index: 31
view all 5 authors...
Abstract In spite of the rapid development of electronic technology, fabricating heat-conducting polymer matrix composites with light texture and excellent mechanical properties remains an enormous challenge. Herein, carbon fiber reinforced cyanate ester resin matrix composites embedded with manganese dioxide-polyamide 6 interfacial path were swimmingly manufactured. The analysis of chemical structure demonstrates that not only the propitious growth of compact and orderly nano-manganese dioxide ...
Source
#1Kangyi Lu (Huada: Beijing University of Chemical Technology)H-Index: 2
#2Wenmo Zhu (Huada: Beijing University of Chemical Technology)
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 5 authors...
Abstract Epoxy matrix with high modulus was synergistically designed by organic amide acid (AA) and inorganic nano silica (SiO2) as well as stiffened interphase of carbon fiber composite, and the effects of matrix modulus on longitudinal compressive strength and failure mechanism of composites were investigated. The elastic and shear modulus of matrix was enhanced by increased chemical cross-linking cites of AA and mechanical restraint of SiO2, contributing to improved interfacial properties fro...
Source
#1Yuanyuan Wang (Zhengzhou University)
#2Bin Wang (Zhengzhou University)
Last. Wanjie Wang (Zhengzhou University)H-Index: 3
view all 7 authors...
Abstract Here, a new inorganic-organic magnetic super-tough PA composite was developed via simply melt blending with POE-g-MAH and reactive nano PA-Fe3O4 simultaneously. The reactive PA-Fe3O4 was prepared by in-situ anion polymerization PA with amino-modified Fe3O4, endowing PA-Fe3O4 strong interaction with both PA and POE-g-MAH, resulting in much more uniform POE-g-MAH dispersed phase with tripled droplet number. Meanwhile, as confirmed by the rheological and morphological results, a synergisti...
1 CitationsSource
#1Fang Lai (SWU: Southwest University)H-Index: 1
#2Lei Zhao (SWU: Southwest University)H-Index: 1
Last. Peng Zhang (SWU: Southwest University)H-Index: 1
view all 4 authors...
Abstract In this work, a novel interpenetrating system including amorphous polystyrene/polyurethane and multiwall carbon nanotubes (PS/PU-MWCNTs) was in-situ constructed by the homogeneous bulk polymerization. The ultralow percolation threshold (about 0.01 wt%) and high electrical conductivity were achieved owing to the unique conductive networks of MWCNTs in the interconnected “island chain” of PU. Surprisingly, the high positive temperature coefficient (PTC) effect of resistivity of amorphous ...
2 CitationsSource
#1Marindia Decol (UDESC: Universidade do Estado de Santa Catarina)H-Index: 3
#2Wagner Mauricio Pachekoski (UFSC: Universidade Federal de Santa Catarina)H-Index: 4
Last. Daniela Becker (UDESC: Universidade do Estado de Santa Catarina)H-Index: 11
view all 5 authors...
1 CitationsSource
#1Qi Tang (Huda: Hubei University)H-Index: 2
#2Kang Wang (Huda: Hubei University)H-Index: 1
Last. Dean Shi (Huda: Hubei University)H-Index: 17
view all 7 authors...
Abstract Antibacterial polymer membranes have been widely used in many fields of our daily life. In this study, porous PA6 membrane with ZnO nanoparticles attaching on to the surface of inner pore walls is prepared. Firstly, SMA (styrene maleic anhydride copolymer) is used to graft onto the surface of ZnO nanoparticle in DMF (dimethylformamide). Then the pre-treated ZnO nanoparticles (ZnO-SMA) are added into SEBS (Styrene-ethylene-butylene-styrene copolymer)/PA6 (60/40 wt/wt) blends with co-cont...
2 CitationsSource
#1Yan-Hao Huang (Sichuan University)H-Index: 5
#2Li-Bo Chen (Sichuan University)H-Index: 3
Last. Ming-Bo Yang (Sichuan University)H-Index: 48
view all 9 authors...
Abstract In this work, polyethylene (PE)/silica microsphere composite melt is used to penetrate the ethylene-α-octene block copolymer (OBC) melt in multi-melt multi-injection molding (M3IM) process. Due to the viscosity difference between PE/silica composite melt and OBC melt, a disturbed flow interface of these two melts formed. Thanks to the “shear-induced migration” theory in suspended balance model (SB model) and the unique flow field in M3IM, silica microspheres can be designed to migrate f...
2 CitationsSource