Perfluorinated lubricant/ polypyrrole composite material: Preparation and corrosion inhibition application

2013 ◽  
Vol 131 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Hongfei Zhu ◽  
Jian Hou ◽  
Ri Qiu ◽  
Jiong Zhao ◽  
Jingkun Xu
Keyword(s):  
Composite Material ◽  
Corrosion Inhibition ◽  
Polypyrrole Composite ◽  
Material Preparation

scholarly journals Identification of Yield Point of Polymer-Based Composite Material in the Conditions of Increased Temperatures

2016 ◽  
Vol 61 (3) ◽  
pp. 1561-1566
Author(s):  
A. Arustamian ◽  
K. Sołek ◽  
D. Kalisz
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Yield Point ◽  
Mechanical Characteristics ◽  
Laboratory Equipment ◽  
Experimental Procedure ◽  
Influence Of Temperature ◽  
Practical Research ◽  
Influence Of Temperature On ◽  
Material Preparation

Abstract Theoretical and practical research on the influence of temperature on mechanical characteristics of the composite material MM “Steel 1018” has been conducted. Both laboratory equipment used to measure of mechanical properties, the technique of material preparation and the experimental procedure were described. The analysis of the the obtained results revealed that with temperature increase the material yield point goes down.

Epoxy Resin (EP) / Nano-SiO2 Composite Material Preparation by Two Processes

2013 ◽  
Vol 652-654 ◽  
pp. 127-130
Author(s):  
Ying Na Zhao ◽  
Xiong Feng Zeng ◽  
Wen Li Zhang
Keyword(s):  
Thermal Stability ◽  
Composite Material ◽  
Comprehensive Evaluation ◽  
Sol Gel ◽  
Curing Agent ◽  
Spectra Analysis ◽  
Nano Sio2 ◽  
Ep Matrix ◽  
Material Preparation ◽  
Thermal Stability Of

Ultrasonic wave (UW) and sol-gel (SG) technology were using to preprocess the nano-SiO2, and the SiO2/EP composites were prepared by adding coupling agent KH-550, curing agent T-31 and different contents SiO2 into EP matrix. Using infrared spectra analysis tested the samples’ structures and the thermal stability of two preparation processes were tested by TG. The results indicated that, the thermal stability of the SiO2/EP composites by UW preprocess was improved about 25 oC -60 oC when compared with pure EP and the SiO2/EP composites by SG. Comparing to the comprehensive evaluation of thermal stability of different SiO2 contents SiO2/EP composites, the most optimum additive of nano-SiO2 was about 10 wt. % by UW process.

scholarly journals Design and Fabrication of a Fast Response Resistive-Type Humidity Sensor Using Polypyrrole (Ppy) Polymer Thin Film Structures

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3019
Author(s):  
Mushahid Hussain ◽  
Saqib Hasnain ◽  
Nadir Ali Khan ◽  
Shehar Bano ◽  
Fazeelat Zuhra ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Material ◽  
Humidity Sensor ◽  
Experimental Result ◽  
Organic Polymer ◽  
Interdigitated Electrodes ◽  
Humidity Response ◽  
Response And Recovery ◽  
Resistive Type ◽  
Polypyrrole Composite

In this research article, an organic polymer based polypyrrole (Ppy) composite material has been synthesized and analyzed for the design and fabrication purposes of a fast-responsive, highly sensitive, and an economical resistive-type novel humidity detection sensor. This humidity sensor most suitably serves the purpose for industrial humidity (i.e., values ranging from low to high) detection applications. First, a polypyrrole composite material (a mixture of polypyrrole, polypyrrole-NiO, polypyrrole-CeO2, and polypyrrole-Nb2O5) has been synthesized by chemical oxidative polymerization method, and then is treated at various temperatures, i.e., 100, 150 and 200 °C, respectively. After this treatment, the synthesized samples were then characterized by using FTIR, SEM, and DTA/TGA techniques for analyzing humidity sensing properties. The polypyrrole samples with the best morphological structure and properties were then incorporated on interdigitated electrodes. For the fabrication purposes of this thin film structure, at first a few drops of polyvinyl alcohol (PVA) were placed over interdigitated electrodes (IDE) and then the synthesized polypyrrole composite was uniformly deposited in the form of a thin film over it. The plots show that this is a good resistive-type humidity detection device for the relative humidity range of 30% to 90%. The response and recovery times of this newly fabricated humidity sensor were reported to be the same as 128 s at room temperature. Additionally, the stability and the repeatability response behavior of this Ppy sensor were verified up to five cycles of multiple repetitions. This presents an excellent stability and repeatability performance of the sensor. Furthermore, the capacitances versus humidity response and recovery properties of the designed sensor were studied too. This illustrates an excellent capacitive verses humidity response and shows a linear and an active behavior. Lastly, the experimental result proves that polypyrrole composite thin film shows a reasonable best performance up to a temperature of 100 °C.

Modified Rapeseed Oil/Al-Montmorillonite Composite Material: Preparation and Application in Leather Collagen

2018 ◽  
Vol 10 (11) ◽  
pp. 1565-1574 ◽  
Author(s):  
Bin Lyu ◽  
Yue-Feng Wang ◽  
Jian-Zhong Ma ◽  
Dang-Ge Gao
Keyword(s):  
Composite Material ◽  
Rapeseed Oil ◽  
Material Preparation

Study on Performance of Scale and Corrosion Inhibition of Polyaspartic Acid Composite Material

2011 ◽  
Vol 233-235 ◽  
pp. 50-53 ◽  
Author(s):  
Zhen Fa Liu ◽  
Han Shuo Liu ◽  
Li Hui Zhang ◽  
Mei Fang Yan
Keyword(s):  
Composite Material ◽  
Calcium Carbonate ◽  
Acrylic Acid ◽  
Corrosion Inhibition ◽  
Itaconic Acid ◽  
Tricarboxylic Acid ◽  
Inhibition Rate ◽  
Polyaspartic Acid ◽  
Scale Inhibition ◽  
Acrylic Ester

Polyaspartic acid (PASP) composite material, a scale and corrosion inhibitor, is prepared from PASP, acrylic acid-acrylic ester- itaconic acid tripolymer (IA-AA-AE) and 2-phosphonobutane- 1,2,4-tricarboxylic acid (PBTCA). The scale inhibition effects of PASP and PASP composite are investigated. Calcium carbonate crystals in scale samples are characterized by means of SEM. Experimental results show that the scale inhibition rate can reach 98.7 % and corrosion inhibition rate 96.5 % under the conditions of Ca2+ 639 mg.L-1 and PASP composite material 40 mg.L-1. SEM results show that calcite and aragonite can be transformed into vaterite completely by using PASP composite material.

scholarly journals Graphene oxide synthesis for composite material preparation

2019 ◽  
Vol 10 (1) ◽  
pp. 157-166
Author(s):  
Marla Corso ◽  
Ana Carolina de Dias Albuquerque ◽  
Lídia Pereira Amaro ◽  
Lilian Keylla Berto ◽  
Silvia Luciana Favaro ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
Graphene Oxide ◽  
Stress Tests ◽  
Graphene Oxides ◽  
Hexagonal Arrangement ◽  
Synthetic Graphite ◽  
High Flexibility ◽  
Material Preparation ◽  
Graphene Nanoplates

Graphene, a material formed by carbon atoms with sp2 hybridization in a hexagonal arrangement, has differentiated characteristics in comparison to commercial materials such as high flexibility, high electrical and thermal conductivity, and strong resistance due to the organized structure of the material and can be applied in several branches of research. The best-known method for the production of graphene is the exfoliation of graphite using the methodology proposed by Hummers, in which the commercial graphite is oxidized obtaining as final product the graphene oxide that can be converted into graphene. In this study, the Hummers methodology was used in the oxidation of synthetic graphite and graphene nanoplates of 5 μm and 15 μm. The obtained materials were characterized by FTIR, RAMAN and XRD, allowing to observe the best synthesis to be used in the production of graphene oxide. Then, composites were prepared using the graphene oxides obtained as filler. In order to obtain them, different mass quantities of graphene oxides (1%, 3% and 5% in relation to the polypropylene polymer matrix) were used, demonstrating by the strain tensile stress tests that the composite materials have results more satisfactory than pure polypropylene.

Controllable preparation of an eggshell membrane supported hydrogel electrolyte with thickness-dependent electrochemical performance

2016 ◽  
Vol 4 (46) ◽  
pp. 17933-17938 ◽  
Author(s):  
Xinhua Liu ◽  
Chengyao Yin ◽  
Jie Yang ◽  
Meiying Liang ◽  
Junjie Wei ◽  
...  
Keyword(s):  
Composite Material ◽  
Electrochemical Performance ◽  
Eggshell Membrane ◽  
Electrochemical Performances ◽  
Energy Devices ◽  
Material Preparation ◽  
Controllable Preparation ◽  
Insight Into

The controllable preparation of eggshell-hydrogels provides a new insight into composite material preparation from bio-waste eggshell membrane in energy devices with thickness-dependent electrochemical performances.

MCM-41-CdS nanoparticle composite material: Preparation and characterization

2010 ◽  
Vol 128 (1-3) ◽  
pp. 101-107 ◽  
Author(s):  
E. Caponetti ◽  
L. Pedone ◽  
M.L. Saladino ◽  
D. Chillura Martino ◽  
G. Nasillo
Keyword(s):  
Composite Material ◽  
Cds Nanoparticle ◽  
Material Preparation ◽  
Mcm 41

MnCo2O4/g-C3N4 composite material preparation and its capacitance performance

2021 ◽  
Author(s):  
Qing Wang ◽  
Yirong Li ◽  
Haoran Gao ◽  
Jianfeng Dai ◽  
Weixue Li
Keyword(s):  
Composite Material ◽  
Electronic Transport ◽  
Retention Rate ◽  
Capacity Retention ◽  
Ion Migration ◽  
Discharge Rates ◽  
Excellent Electrochemical Performance ◽  
Capacitance Performance ◽  
Transport Channels ◽  
Material Preparation

MnCo2O4/g-C3N4 composite material was synthesized by the hydrothermal method, compared with MnCo2O4 without g-C3N4, it has excellent electrochemical performance. The composite material can reach a specific capacitance of 350 Fg[Formula: see text] at 1 Ag[Formula: see text]. The capacity retention rate is 96% after 1000 cycles at the rate of 2 Ag[Formula: see text]. Experiments show that g-C3N4 can effectively disperse and improve the conductivity of urchin-like MnCo2O4, and the composite of sufficient g-C3N4 can give full play to the performance of urchin-like MnCo2O4, provide faster electronic transport channels, effectively improve the ion migration rate, and make urchin-like MnCo2O4 increase the rate performance under high charge and discharge rates.

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