Effect of microencapsulated phase change materials on the thermo-mechanical properties of poly(methyl-methacrylate) based biomaterials

2006 ◽  
Vol 17 (12) ◽  
pp. 1219-1226 ◽  
Author(s):  
Roberto De Santis ◽  
Veronica Ambrogi ◽  
Cosimo Carfagna ◽  
Luigi Ambrosio ◽  
Luigi Nicolais
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Phase Change ◽  
Phase Change Materials ◽  
Poly Methyl Methacrylate ◽  
Microencapsulated Phase Change Materials

Preparation and Thermal Performance of Poly(Methyl Methacrylate)/Binary Alkane-Alcohol Organic Eutectic Microcapsules as Phase Change Materials for Cold Storage

2016 ◽  
Vol 852 ◽  
pp. 614-617
Author(s):  
Ni Gao ◽  
Li Xian Sun ◽  
Fen Xu ◽  
Huan Zhi Zhang ◽  
Zhong Cao
Keyword(s):  
Methyl Methacrylate ◽  
Phase Change ◽  
Phase Change Materials ◽  
Spherical Shape ◽  
Polymerization Reaction ◽  
Poly Methyl Methacrylate ◽  
Organic Eutectic ◽  
Heat Value ◽  
Ft Ir ◽  
Thermal Stability Of

In this study, the microcapsules containing binary alkane-alcohol organic eutectic of mixed n-tetradecane and 1-dodecanol (TD-DD) phase change materials as the core and poly (methyl methacrylate)(PMMA) as the shell were prepared by emulsion polymerization reaction. The microcapsules were characterized by using DSC, SEM, FT-IR and TG. The results of DSC test showed that melting and freezing temperatures of the microcapsules are-6.136 °C and 5.203 °C, and total latent heat value are-82.522 J/g and 77.632 J/g, respectively. The SEM and FT-IR analyses indicated that PMMA shell has successfully encapsulated TD-DD. The TD-DD and the microcapsules exhibited in spherical shape. Additionally, the TG test showed that the thermal stability of TD-DD was increased after encapsulation.

scholarly journals Alkali-Activated Cements for TES Materials in Buildings’ Envelops Formulated With Glass Cullet Recycling Waste and Microencapsulated Phase Change Materials

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2144 ◽  
Author(s):  
Jessica Giro-Paloma ◽  
Camila Barreneche ◽  
Alex Maldonado-Alameda ◽  
Miquel Royo ◽  
Joan Formosa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Glass Cullet ◽  
Microencapsulated Phase Change Materials ◽  
Building Walls ◽  
Alkali Activated

Within the thermal energy storage field, one of the main challenges of this study is the development of new enhanced heat storage materials to be used in the building sector. The purpose of this study is the development of alkali-activated cements (AACs) with mechanical properties to store high amounts of heat. These AACs incorporate wastes from industrial glass process as well as microencapsulated phase change materials (mPCMs) to improve the thermal inertia of building walls, and accordingly respective energy savings. The research presented below consists of the exhaustive characterization of different AACs formulated from some waste generated during the proper management of municipal waste used as precursor. In this case study, AACs were formulated with the waste generated during the recycling of glass cullet, namely ceramic, stone, and porcelain (CSP), which is embedding a mPCM. The addition of mPCM was used as thermal energy storage (TES) material. The mechanical properties were also evaluated in order to test the feasibility of the use of the new formulated materials as a passive TES system. The results showed that the AAC obtained from CSP (precursors) mixed with mPCMs to obtain a thermal regulator material to be implemented in building walls was reached successfully. The material developed was resistant enough to perform as insulating panels. The formulated materials had high storage capacity depending on the PCM content. The durability of the mPCM shell was studied in contact with alkaline medium (NaOH 4 M) and no degradation was confirmed. Moreover, the higher the content of mPCM, the lower the mechanical properties expected, due to the porosity increments with mPCM incorporation in the formulations.

Paraffin /Poly(methyl methacrylate) Blends as Form-Stable Phase Change Materials for Thermal Energy Storage

2011 ◽  
Vol 183-185 ◽  
pp. 1573-1576 ◽  
Author(s):  
Xiao Mei Tong ◽  
Min Zhang ◽  
Ling Song ◽  
Pan Ma
Keyword(s):  
Energy Storage ◽  
Methyl Methacrylate ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Stable Phase ◽  
Gravimetric Analysis ◽  
Poly Methyl Methacrylate ◽  
Pmma Blends

A series of paraffin /poly (methyl methacrylate) blends were prepared as new kinds of form-stable phase change materials by encapsulation of paraffin into PMMA. The blends were prepared at different mass fractions of paraffin. The form-stable paraffin /PMMA blends were characterized using optic microscopy (OM) and Fourier transform infrared (FT-IR) spectroscopy. Thermal characteristics were measured by using thermo gravimetric analysis （TGA） and differential scanning calorimetry (DSC) technique. On the basis of all results, it was concluded that paraffin is encapsulated by PMMA. The blends have good thermal properties and degrade in two distinguishable steps. They have good energy storage capacity and melt at 58-60 °C.The blends have different degrees of hydrophobic. These form-stable paraffin /PMMA blends have important potential for some practical latent heat thermal energy storage applications.

Mechanical and thermal characterisation of multifunctional composites incorporating phase change materials

2016 ◽  
Vol 51 (18) ◽  
pp. 2631-2642 ◽  
Author(s):  
Sanghyun Yoo ◽  
Everson Kandare ◽  
Ghowsalya Mahendrarajah ◽  
Mariam A Al-Maadeed ◽  
Akbar Afaghi Khatibi
Keyword(s):  
Mechanical Properties ◽  
Phase Change ◽  
Composite Laminates ◽  
Phase Change Materials ◽  
Weight Fraction ◽  
Thermal Storage ◽  
Mechanical And Thermal Properties ◽  
Multifunctional Composites ◽  
Apparent Heat Capacity ◽  
Microencapsulated Phase Change Materials

The paper reports an experimental investigation on the mechanical and thermal properties of multifunctional composite laminates integrated with microencapsulated phase change materials. The different microstructures were created by incorporating microencapsulated phase change materials in glass–epoxy composites at weight fraction between 0 and 20 wt.%. To characterise the mechanical properties, tension, compression and flexural tests were conducted. The scanning electron microscope studies were used to investigate the damage mechanisms associated with these loading conditions. Thermal storage capability of the multifunctional composites was characterised using heat flux meters. The apparent heat capacity of the composites was linearly proportional to the concentration of microencapsulated phase change materials. Alternative design analysis resulted in an optimised laminate configuration with high thermal storage capability coupled with excellent mechanical properties.

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