Study on the Compatibilizing Effect of Janus Particles on Liquid Isoprene Rubber/Epoxy Resin Composite Materials

Xu, Wenqin; Chen, Jiawen; Chen, Shuning; Chen, Qinhui; Lin, Juqiang; Liu, Haiqing

doi:10.1021/acs.iecr.7b03200

Cited by 25 publications

(28 citation statements)

References 36 publications

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“…FTIR spectra of SiO 2 , SiO 2 @PS and SiO 2 @PS‐PMMA are shown in Figure 2. The peaks at 3448 and 1092 cm −1 , which were assigned to the vibration of SiOH and SiOSi, respectively, were observed in SiO 2 30 . In addition, the peak of 2922 cm −1 showed that SiO 2 microspheres also came from MPTS 31 .…”

Section: Resultsmentioning

confidence: 91%

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

Liu

Chen

et al. 2020

J of Applied Polymer Sci

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The compatibility of poly(p‐dioxanone) (PPDO) and poly(lactic acid) (PLA) is very important when they are blended. Herein, three kinds of snowman‐like Janus particles (JPs) with different hydrophilic–lipophilic balance (HLB) were prepared by one‐pot method by adjusting the surficial functional groups of polystyrene (PS) side and used as the compatibilizer of PPDO/PLA composites. JPs self‐assemble at the cell‐structure PPDO/PLA interface, which provides channels for the migration of PPDO. The silica (SiO2) side forms hydrogen bond with PLA, and the PS side forms hydrophobic action with PPDO. Therefore, JPs improve interfacial adhesion and suppress phase separation. Among the three JPs, silica@polystyrene‐graft‐polymethylmethacrylate (SiO2@PS‐PMMA) possesses the most excellent interfacial behavior because its HLB value is similar to that of PPDO/PLA composites. Tensile strength was increased from the original 14.59 MPa to the maximum 24.18 MPa at 1.5 phr of SiO2@PS‐PMMA JPs, and the elongation at break increased from 39% to 203%.

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Section: Resultsmentioning

confidence: 91%

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

Liu

Chen

et al. 2020

J of Applied Polymer Sci

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“…The combination of nanoparticles and double networks is an effective way to form rigid hydrogels [22,25]. Since the two faces of Janus nanoparticles are similar to the two-phase properties of the blends, Janus particles can firmly "grasp" the two phases of the blends to improve the compatibility of two phases and mechanical properties of the blends [26]. Herein, Janus nanosheets (JNSs) have been synthesized by one-pot method.…”

Section: Introductionmentioning

confidence: 99%

One-pot Synthesis of Janus Nanosheets on Strengthening and Toughening Nanocomposite Double Network Hydrogels

Chen¹,

Qian²,

Chen³

et al. 2020

Preprint

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Nanoparticles have leading strengthening and toughening effects on polymer matrix. Anisotropic Janus nanoparticles exhibit abundant interfacial behavior because their two surfaces possess different chemical properties. Herein, Janus nanosheets (JNSs) were synthesized by one-pot method. Different surficial morphology and chemical groups on each surface of JNSs were observed by SEM and AFM. In the process of tannic acid/polyacrylic acid (TA/PAA) polymerization, JNSs act as crosslinking agent to promote the formation of nanocomposite double network hydrogels. When the TA/PAA hydrogels were stretched, both strength and toughness of TA/PAA hydrogels are improved owing to the solid silica enhancement, the orientation-disorientation and the interfacial chemical bond of JNSs. Besides, adsorption-desorption of PAA molecular chains also toughens hydrogels. The tensile strength and the elongation at break of TA/PAA hydrogels containing 1.5wt% JNSs are 42 KPa and 370.9 %, respectively. Compared with the TA/PAA without JNSs, they increase by 90.9% and 88.7%. The recovery and self-healing of hydrogels with JNSs were accelerated dramatically. Meanwhile, the anti-fatigue property was improved. The as-prepared anisotropic Janus particles synthesized by one-pot method on strengthening and toughening double network hydrogels provide a new idea for the synthesis of Janus nanosheets and the crosslinking of hydrogel.

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“…It is important to increase the dispersity of domain size of the dispersed phase in order to play different roles of different scale particles. 34…”

Section: Introductionmentioning

confidence: 99%

Compatibilization Behavior of Double Spherical TETA–SiO₂@PDVB Janus Particles Anchored at the Phase Interface of Acrylic Resin/Epoxy Resin (AR/EP) Polymer Blends

Cheng

Chen

et al. 2019

ACS Omega

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The inorganic particles used as a compatibilizer play a role in crack termination and heat resistance. However, the poor compatibility of inorganic particles and polymer hinders their application. Herein, the double spherical SiO2@PDVB Janus particles (JPs) were modified with triethylenetetramine (TETA), and the obtained anisotropic TETA–SiO2@PDVB JPs were used as the compatibilizer of acrylic resin/epoxy resin (AR/EP) composites. The modification and the compatibilization of TETA–SiO2@PDVB JPs were studied by scanning electron microscopy, X-ray photoelectron spectroscopy, differential scanning calorimetry, and dynamic mechanical analyzer, impact test, tensile test, and so forth. Results show that amino groups grafted onto the SiO2 lobe can react with epoxy groups of EP, which results in the TETA–SiO2 lobe being embedded in the EP phase and the PDVB lobe being pushed toward the AR phase. The TETA–SiO2@PDVB JPs anchored at the interface of AR and EP increase their interfacial adhesion, decrease the domain phase size and distribution of dispersed AR, and improve the compatibility of AR/EP composites. The compatibilization of nanoparticles (NPs) is realized by the cavitation and blunting of different scaled AR phase domain distributions and that of JPs is realized by the strong interfacial force originated by JPs. Moreover, the desorption energy of TETA–SiO2@PDVB JPs is higher than that of SiO2–TETA; so the glass transition temperature (Tg) of AR/EP/JP composites is higher than that of AR/EP/NP composites. The strong interfacial adhesion and high desorption energy endow TETA–SiO2@PDVB JPs with a toughening effect and enhancing effect. The impact strength and the tensile strength of AR/EP/TETA–SiO2@PDVB composites are 16.03 kJ/m2 and 63.12 MPa, which are 9.91 kJ/m2 and 16.32 MPa higher than those of AR/EP composites, respectively. JPs used in the thermosetting EP is benefit to its toughening study and the new anisotropic Janus compatibilizer.

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Study on the Compatibilizing Effect of Janus Particles on Liquid Isoprene Rubber/Epoxy Resin Composite Materials

Cited by 25 publications

References 36 publications

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

One-pot Synthesis of Janus Nanosheets on Strengthening and Toughening Nanocomposite Double Network Hydrogels

Compatibilization Behavior of Double Spherical TETA–SiO₂@PDVB Janus Particles Anchored at the Phase Interface of Acrylic Resin/Epoxy Resin (AR/EP) Polymer Blends

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Study on the Compatibilizing Effect of Janus Particles on Liquid Isoprene Rubber/Epoxy Resin Composite Materials

Cited by 25 publications

References 36 publications

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

Design of Janus particles based on silica@polystyrene and their compatibilization on poly(p‐dioxanone)/poly(lactic acid) composites

One-pot Synthesis of Janus Nanosheets on Strengthening and Toughening Nanocomposite Double Network Hydrogels

Compatibilization Behavior of Double Spherical TETA–SiO2@PDVB Janus Particles Anchored at the Phase Interface of Acrylic Resin/Epoxy Resin (AR/EP) Polymer Blends

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Compatibilization Behavior of Double Spherical TETA–SiO₂@PDVB Janus Particles Anchored at the Phase Interface of Acrylic Resin/Epoxy Resin (AR/EP) Polymer Blends