Regulating interfacial compatibility with amino silane and bio-inspired polydopamine for high-performance epoxy composites

2019 ◽  
Vol 140 ◽  
pp. 105861 ◽  
Author(s):  
Song Li ◽  
Xiao Li ◽  
Mingchao Shao ◽  
Jingjing Yang ◽  
Qihua Wang ◽  
...  
2020 ◽  
Vol 137 (40) ◽  
pp. 49195 ◽  
Author(s):  
Song Li ◽  
Cong Wang ◽  
Tingmei Wang ◽  
Qihua Wang ◽  
Xinrui Zhang

2020 ◽  
Vol 41 (5) ◽  
pp. 1950-1961 ◽  
Author(s):  
Selvaraj Vaithilingam ◽  
Raghavarshini ThangavelRavivarman ◽  
Alagar Muthukaruppan

2017 ◽  
Vol 4 (12) ◽  
pp. 170980 ◽  
Author(s):  
Ya-Qiong Wang ◽  
Shou-Bin Xu ◽  
Jian-Guo Deng ◽  
Li-Zhen Gao

The interfacial compatibility between compact TiO 2 and perovskite layers is critical for the performance of planar heterojunction perovskite solar cells (PSCs). A compact TiO 2 film employed as an electron-transport layer (ETL) was modified using 3-aminopropyl trimethoxy silane (APMS) hydrolysate. The power conversion efficiency (PCE) of PSCs composed of an APMS-hydrolysate-modified TiO 2 layer increased from 13.45 to 15.79%, which was associated with a significant enhancement in the fill factor (FF) from 62.23 to 68.04%. The results indicate that APMS hydrolysate can enhance the wettability of γ-butyrolactone (GBL) on the TiO 2 surface, form a perfect CH 3 NH 3 PbI 3 film, and increase the recombination resistance at the interface. This work demonstrates a simple but efficient method to improve the TiO 2 /perovskite interface that can be greatly beneficial for developing high-performance PSCs.


2009 ◽  
Vol 24 (11) ◽  
pp. 3397-3406 ◽  
Author(s):  
Dongdong Gu ◽  
Yifu Shen

The poor wettability between ceramics and metals is a main obstacle in obtaining high-performance metal-matrix composites (MMCs) parts using direct metal laser sintering (DMLS). Rare earth (RE) elements, due to their unique physical and chemical properties, have high potential for improving laser processability of MMCs. In this work, a comparative study was performed to investigate the influence of RE–Si–Fe addition on microstructural features and mechanical properties of DMLS processed tungsten carbide (WC) particle reinforced Cu MMCs parts. It showed that by adding 3 wt% RE–Si–Fe, the WC reinforcing particles were refined, the particle dispersion state was homogenized, and the particle/matrix interfacial compatibility was enhanced. The RE–Si–Fe-containing WC/Cu MMCs parts possessed significantly elevated mechanical properties, i.e., densification level of 95.7%, microhardness of 417.6 HV, fracture strength of 201.8 MPa, and friction coefficient of 0.8. The metallurgical functions of the RE–Si–Fe additive for the improvement of DMLS quality of MMCs parts were discussed.


Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 766 ◽  
Author(s):  
Junyi Yang ◽  
Zili Tang ◽  
Hang Yin ◽  
Yan Liu ◽  
Ling Wang ◽  
...  

In order to develop high-performance dielectric materials, poly(arylene ether nitrile)-based composites were fabricated by employing surface-hydroxylated calcium copper titanate (CCTO) particles. The results indicated that the surface hydroxylation of CCTO effectively improved the interfacial compatibility between inorganic fillers and the polymer matrix. The composites exhibit not only high glass transition temperatures and an excellent thermal stability, but also excellent flexibility and good mechanical properties, with a tensile strength over 60 MPa. Furthermore, the composites possess enhanced permittivity, relatively low loss tangent, good permittivity-frequency stability and dielectric-temperature stability under 160 °C. Therefore, it furnishes an effective path to acquire high-temperature-resistant dielectric materials for various engineering applications.


2015 ◽  
Vol 31 ◽  
pp. 192-198 ◽  
Author(s):  
Honorata Mąka ◽  
Tadeusz Spychaj ◽  
Marek Zenker

2011 ◽  
Vol 183-185 ◽  
pp. 2148-2153
Author(s):  
Chun Tao Li ◽  
Wei Hong Wang ◽  
Qing Wen Wang ◽  
Yan Jun Xie ◽  
Yong Ming Song ◽  
...  

Wood plastic composites (WPC) are a new type of green environmental composites with high performance and added value. In this paper, poplar wood flour was modified with vinyltrimethoxysilane(A-171) to improve the interfacial compatibility and enhance the interfacial bonding between the polar wood flour and nonpolar plastics. Then the modified wood flour was blended with high density polyethylene (HDPE) and prepared composites by extrusion. The effects of amount and solution concentration of A-171 on the properties of WPC were investigated. FTIR analysis indicated that polycondensation grafting reaction occurred between A-171 and wood flour. Compared to untreated wood flour/HDPE composites, both mechanical properties and water resistance of the composites were improved and presented optimal performance when the dosage of A-171 was 4%. The storage modulus G' and viscosity η*of the composites decreased but the loss tangent tanδ increased compared to the untreated composites. G' and η* raised with the increase of A-171, however, tanδ decreased. Solution concentration of A-171 did not show significant effect on the mechanical properties of composites, but water resistance of composites decreased with the increase of solution concentrateon of A-171.


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