scholarly journals New Approach to Optimize Mechanical Properties of the Immiscible Polypropylene/Poly (Ethylene Terephthalate) Blend: Effect of Shish-Kebab and Core-Shell Structure

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1094 ◽  
Author(s):  
Yingxiong Wang ◽  
Dashan Mi ◽  
Laurens Delva ◽  
Ludwig Cardon ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shell Structure ◽  
Mechanical Performance ◽  
Practical Significance ◽  
Core Shell ◽  
New Approach ◽  
Poly Ethylene Terephthalate ◽  
Spherical Core ◽  
Core Shell Structure ◽  
Poly Ethylene

Improving the mechanical properties of immiscible PP/PET blend is of practical significance especially in the recycling process of multi-layered plastic solid waste. In this work, a multi-flow vibration injection molding technology (MFVIM) was hired to convert the crystalline morphology of the PP matrix from spherulite into shish-kebab. POE–g–MA was added as compatibilizer, and results showed that the compatibilization effect consisted in the formation of a core-shell structure by dispersing the POE–g–MA into the PP matrix to encapsulate the PET. It was found that the joint action of shish-kebab crystals and spherical core-shell structure enabled excellent mechanical performance with a balance of strength and toughness for samples containing 10 wt % PET and 4 wt % POE–g–MA, of which the yield strength and impact strengths were 50.87 MPa and 13.71 kJ/m2, respectively. This work demonstrates a new approach to optimize mechanical properties of immiscible PP/PET blends, which is very meaningful for the effective recycling of challenging plastic wastes.

Electrospun Core−Shell Structure Nanofibers from Homogeneous Solution of Poly(ethylene oxide)/Chitosan

2009 ◽  
Vol 42 (14) ◽  
pp. 5278-5284 ◽  
Author(s):  
Jian-Feng Zhang ◽  
Dong-Zhi Yang ◽  
Fei Xu ◽  
Zi-Ping Zhang ◽  
Rui-Xue Yin ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Shell Structure ◽  
Homogeneous Solution ◽  
Core Shell ◽  
Poly Ethylene Oxide ◽  
Core Shell Structure ◽  
Poly Ethylene

Design of PP/EPDM/NBR TPVs with tunable mechanical properties via regulating the core-shell structure

2020 ◽  
Vol 90 ◽  
pp. 106767
Author(s):  
Tao Peng ◽  
Fei Lv ◽  
Zhou Gong ◽  
Liming Cao ◽  
Xuesong Yan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shell Structure ◽  
Core Shell ◽  
The Core ◽  
Core Shell Structure ◽  
Tunable Mechanical Properties

Toughening Modification of PA6 with Different Core-Shell Particles

2013 ◽  
Vol 750-752 ◽  
pp. 820-823
Author(s):  
Zhen Yu Liu ◽  
Yu Zhu Xiong ◽  
Wen Jie Mei ◽  
Li Wang
Keyword(s):  
Electron Microscopy ◽  
Impact Strength ◽  
Shell Structure ◽  
Performance Test ◽  
Mechanical Performance ◽  
Core Shell ◽  
Transmission Electron ◽  
Notch Impact Strength ◽  
Core Shell Structure ◽  
Shell Particles

(POE-g-MAH/OMMT) and (POE-g-MAH/SiO2) toughening particles of core-shell structure were prepared by ball grinding method and were used to modify toughness of PA6.The morphology of PA6 modified by these core-shell particles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM),and were detected by mechanical performance test. The results show that both toughening particles could improved notch impact strength of PA6,and with toughening particle exceed 10%, composites notch impact strength is rapid increase.(POE-g-MAH/OMMT) particle of PA6 toughening effect is better than (POE-g-MAH/SiO2).When material under impact, OMMT produced slip effect in core-shell structure and SiO2 produced rolling effect.

scholarly journals Preparation of CaCO3-SiO2 composite with core-shell structure and its application in silicone rubber

2015 ◽  
Vol 17 (4) ◽  
pp. 128-133 ◽  
Author(s):  
Chenglin Cui ◽  
Hao Ding ◽  
Li Cao ◽  
Daimei Chen
Keyword(s):  
Mechanical Properties ◽  
Silicone Rubber ◽  
Shell Structure ◽  
Breaking Strength ◽  
Core Shell ◽  
Elongation At Break ◽  
Chemistry Method ◽  
Core Shell Structure

Abstract A new CaCO3-SiO2 composite with core-shell structure was successfully prepared by mechano-chemistry method (MCM). SEM and FTIR indicated that SiO2 particles were homogeneously immobilized on the surface of CaCO3. The well dispersion of this CaCO3-SiO2 composite into silicone rubber can not only reduce the usage amount of SiO2, but also improve the mechanical properties of silicone rubber. By the calculation, the theoretical numbers of the SiO2 particles is about 10 times as large as that of CaCO3 particles in the CaCO3-SiO2 composite. Mixing CaCO3-SiO2 composite in silicone rubber can enhance the breaking strength of the silicone rubber about 18% as high as that when mixing the pure SiO2. And the elongation at break is about 14% less than that of adding the pure SiO2 sample.

scholarly journals Strengthening of Nanocrystalline Al with Al3Zr Core-Shell Structure

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1144
Author(s):  
Dora Janovszky
Keyword(s):  
Mechanical Properties ◽  
Shell Structure ◽  
Hot Pressing ◽  
Room Temperature ◽  
High Energy ◽  
Core Shell ◽  
Mixed Powder ◽  
Reinforcing Particles ◽  
Core Shell Structure ◽  
Nanocrystalline Phases

High-density Al-based composites reinforced with ten-wt.% recycled nanocrystalline CuZrAgAl particles have been fabricated by mechanical milling, cold- and hot-pressing. The microstructures, phase transformations, and mechanical properties of the mixed powder and sintered samples were investigated. After milling in a ball mill for 30 h, the microhardness of the mixed powder increases to 301 ± 31 HV0.01 and 222 ± 10 HV0.01 without and with ethanol milling, respectively. On account of the interdiffusion, the melting temperature of mixed powder reduces to 574 ± 5.0 °C and 627.5 ± 6.5 °C after 30 h milling. The study showed that the reinforcing particles are homogeneously distributed in the sintered nanocrystalline Al-based composites. During the hot-pressing, a shell zone forms at the interface of reinforcing particles during hot pressing after high energy milling with a minimum of ten hours milling time. This shell zone consists of Al3Zr (D023) phase. The coarsening resistant core-shell structure and grain refinement greatly improve mechanical properties. The compression strength at room temperature varies between 650 and 800 MPa at room temperature and is 380 MPa at 400 °C for the composite containing ten-wt.% of the Cu-Zr-based amorphous-nanocrystalline phases. The Brinell hardness of the sintered composite is 329 HB.

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