Preparation and physicochemical properties of microcapsules containing phase-change material with graphene/organic hybrid structure shells

Su, Jun-Feng; Wang, Xinyu; Han, Shan; Zhang, Xiaolong; Guo, Yan-Dong; Wang, Ying-Yuan; Tan, Yiqiu; Han, Ningxu; Li, Wei

doi:10.1039/c7ta06980d

Cited by 84 publications

(61 citation statements)

References 34 publications

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“…These techniques cannot produce the microcapsules with mean size diameter smaller than 100 μm. The chemical methods are categorized into the interfacial polymerization, in situ polymerization, simple or complex coacervation, layer‐by‐layer assembly, internal phase separation, emulsion polymerization, and suspension polymerization …”

Section: Introductionmentioning

confidence: 99%

Material encapsulation in poly(methyl methacrylate) shell: A review

Ahangaran

Navarchian

Picchioni

2019

J of Applied Polymer Sci

103

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Material encapsulation is a relatively new technique for coating a micro/nanosize particle or droplet with polymeric or inorganic shell. Encapsulation technology has many applications in various fields including drug delivery, cosmetic, agriculture, thermal energy storage, textile, and self-healing polymers. Poly(methyl methacrylate) (PMMA) is widely used as shell material in encapsulation due to its high chemical stability, biocompatibility, nontoxicity, and good mechanical properties. The main approach for micro/nanoencapsulation of materials using PMMA as shell comprises emulsion-based techniques such as emulsion polymerization and solvent evaporation from oilin-water emulsion. In the present review, we first focus on the encapsulation techniques of liquid materials with PMMA shell by analyzing the effective processing parameters influencing the preparation of PMMA micro/nanocapsules. We then describe the morphology of PMMA capsules in emulsion systems according to thermodynamic relations. The techniques to investigation of mechanical properties of capsule shell and the release mechanisms of core material from PMMA capsules were also investigated.

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Section: Introductionmentioning

confidence: 99%

Material encapsulation in poly(methyl methacrylate) shell: A review

Ahangaran

Navarchian

Picchioni

2019

J of Applied Polymer Sci

103

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“…The mechanical property of a single capsule was characterized by AFM, which is one of the most popular and standard techniques for the characterization of the mechanical properties in all micro-mechanical test methods. 37 As for the mechanical property, it has been proven that before the yield point, the individual capsules deform elastically and then return to their original shapes when the force is withdrawn. Once the yield point has passed, the deformation of the capsules is irreversible.…”

Section: Properties Of Nano/microcapsulesmentioning

confidence: 99%

Polymer–silica hybrid self-healing nano/microcapsules with enhanced thermal and mechanical stability

Zhou

et al. 2019

RSC Adv.

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“…The schematic diagram outlining the preparation of AgNPs functionalized GNS and MWCNT is shown in Figure 1; they were prepared following a previously published protocol with modifications [31][32][33]. GNS@AgNPs and MWCNT@AgNPs were prepared by the same procedure, which was simple and practical and could be divided into two parts.…”

Section: Preparation and Purification Of Gns@agnps And Mwcnt@agnpsmentioning

confidence: 99%

High-Performance Thermal Management Nanocomposites: Silver Functionalized Graphene Nanosheets and Multiwalled Carbon Nanotube

Zhou

Zhuang

et al. 2018

Crystals

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Polymer composites with high thermal conductivity have a great potential for applications in modern electronics due to their low cost, easy process, and stable physical and chemical properties. Nevertheless, most polymer composites commonly possess unsatisfactory thermal conductivity, primarily because of the high interfacial thermal resistance between inorganic fillers. Herein, we developed a novel method through silver functionalized graphene nanosheets (GNS) and multiwalled carbon nanotube (MWCNT) composites with excellent thermal properties to meet the requirements of thermal management. The effects of composites on interfacial structure and properties of the composites were identified, and the microstructures and properties of the composites were studied as a function of the volume fraction of fillers. An ultrahigh thermal conductivity of 12.3 W/mK for polymer matrix composites was obtained, which is an approximate enhancement of 69.1 times compared to the polyvinyl alcohol (PVA) matrix. Moreover, these composites showed more competitive thermal conductivities compared to untreated fillers/PVA composites applied to the desktop central processing unit, making these composites a high-performance alternative to be used for thermal management.

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Preparation and physicochemical properties of microcapsules containing phase-change material with graphene/organic hybrid structure shells

Abstract: MicroPCMs were fabricated with a graphene/organic hybrid structure through the actions of electric charge absorption and long-molecular entanglement.

Cited by 84 publications

References 34 publications

Material encapsulation in poly(methyl methacrylate) shell: A review

Material encapsulation in poly(methyl methacrylate) shell: A review

Polymer–silica hybrid self-healing nano/microcapsules with enhanced thermal and mechanical stability

High-Performance Thermal Management Nanocomposites: Silver Functionalized Graphene Nanosheets and Multiwalled Carbon Nanotube

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