scholarly journals Polymer Reinforced DNAN/RDX Energetic Composites: Interfacial Interactions and Mechanical Properties

2017 ◽  
Vol 14 (3) ◽  
pp. 726-741 ◽  
Author(s):  
Wen Qian ◽  
Xizhou Chen ◽  
Guan Luo
Keyword(s):  
Mechanical Properties ◽  
Interfacial Interactions ◽  
Energetic Composites

Role of Interfacial Interactions on Mechanical Properties of Biomimetic Composites for Bone Tissue Engineering

2005 ◽  
Vol 898 ◽  
Author(s):  
Devendra Verma ◽  
Rahul Bhowmik ◽  
Bedabibhas Mohanty ◽  
Dinesh R Katti ◽  
Kalpana S Katti
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Mechanical Response ◽  
Density Ratio ◽  
Interfacial Interactions ◽  
Porous Composites ◽  
Properties Of Composites

AbstractInterfaces play an important role in controlling the mechanical properties of composites. Optimum mechanical strength of scaffolds is of prime importance for bone tissue engineering. In the present work, molecular dynamics simulations and experimental studies have been conducted to study effect of interfacial interactions on mechanical properties of composites for bone replacement. In order to mimic biological processes, hydroxyapatite (HAP) is mineralized in presence of polyacrylic acid (PAAc) (in situ HAP). Further, solid and porous composites of in situ HAP with polycaprolactone (PCL) are made. Mechanical tests of composites of in situ HAP with PAAc have shown improved strain recovery, higher modulus/density ratio and also improved mechanical response in simulated body fluid (SBF). Simulation studies indicate potential for calcium bridging between –COO− of PAAc and surface calcium of HAP. This fact is also supported by infrared spectroscopic studies. PAAc modified surfaces of in situ HAP offer means to control the microstructure and mechanical response of porous composites. Nanoindentation experiments indicate that apatite grown on in situ HAP/PCL composites from SBF has improved elastic modulus and hardness. This work gives insight into the interfacial mechanisms responsible for mechanical response as well as bioactivity in biomaterials.

Influence of particle size and interfacial interactions on the physical and mechanical properties of particle-filled myofibrillar protein gels

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 60723-60735 ◽  
Author(s):  
Andrew J. Gravelle ◽  
Shai Barbut ◽  
Alejandro G. Marangoni
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Elastic Moduli ◽  
Physical And Mechanical Properties ◽  
Surface Effects ◽  
Myofibrillar Protein ◽  
Interfacial Interactions ◽  
Filler Size ◽  
Protein Gels

The mechanical properties of glass and wax particle-filled myofibrillar protein gels were characterized based on filler size and surface effects. Increases in elastic moduli were explained using established models describing particle-filled networks.

Core@Double-Shell Structured Energetic Composites with Reduced Sensitivity and Enhanced Mechanical Properties

2019 ◽  
Vol 11 (33) ◽  
pp. 30341-30351 ◽  
Author(s):  
Congmei Lin ◽  
Bing Huang ◽  
Feiyan Gong ◽  
Zhijian Yang ◽  
Jiahui Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Energetic Composites

Litchi-like Core–Shell HMX@HPW@PDA Microparticles for Polymer-Bonded Energetic Composites with Low Sensitivity and High Mechanical Properties

2019 ◽  
Vol 12 (3) ◽  
pp. 4002-4013 ◽  
Author(s):  
Congmei Lin ◽  
Chengcheng Zeng ◽  
Yushi Wen ◽  
Feiyan Gong ◽  
Guansong He ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Core Shell ◽  
Low Sensitivity ◽  
Energetic Composites

scholarly journals Effect of interfacial modifiers and wood flour treatment on the rheological properties of recycled polyethylene/wood flour composites

2019 ◽  
Vol 36 (1) ◽  
pp. 31-46 ◽  
Author(s):  
Haoqun Hong ◽  
Quannan Guo ◽  
Haiyan Zhang ◽  
Hui He
Keyword(s):  
Mechanical Properties ◽  
Rheological Properties ◽  
Graft Copolymer ◽  
High Performance ◽  
Wood Flour ◽  
Interfacial Interactions ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Recycled Polyethylene ◽  
Processing Properties

The article presents the preparation of a high-performance wood–plastic composites with improved interfacial interactions by adding ternary-monomer graft copolymers as the interfacial modifiers and by braising wood flour (WF) and investigates their effects on the rheological properties of recycled polyethylene (rPE)/WF composites. The processing properties, capillary rheological properties, dynamical rheological properties, and mechanical properties were investigated. Results show that graft copolymer of polyethylene is effective in improving the interfacial interactions of rPE/WF composites, dramatically changing the rheological and mechanical properties. The braising of WF enlarges the gaps of cells and promotes the infiltration of rPE into the gaps, as promoting the increasing in mechanical properties of rPE/WF composites and significantly changing the rheological properties of the composites.

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