The NOx Degradation Performance of Nano-TiO2 Coating for Asphalt Pavement

The NOx degradation performance of nano-TiO2 as a coating material for the road environment was evaluated in this research. The nano-TiO2 coating materials for both road surface and roadside were prepared by using anatase nano-TiO2, activated carbon powder, silane coupling agent and deionized water. The impact of varying amounts of coating material and silane coupling agent were evaluated. The road environment of NOx degradation was simulated by the photocatalytic test system designed by the research team. For the road surface coating, the photocatalytic degradation experiments of NO under different radiation intensities were carried out. The results show that the material has good photocatalytic degradation performance, and the proper amount of silane coupling agent can enhance the bonding performance of the material and asphalt mixture. For the roadside coating, sodium dodecylbenzene sulfonate was selected as the surfactant to carry out the photocatalytic degradation experiment of NO2 with different dosages of surfactant. The results showed that when the mass ratio of nano-TiO2 and surfactant was about 1:2, the catalytic degradation effect of the material was the best.

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Laboratory experiment on the nano-TiO2 photocatalytic degradation effect of road surface oil pollution

Nanotechnology Reviews ◽

10.1515/ntrev-2020-0072 ◽

2020 ◽

Vol 9 (1) ◽

pp. 922-933

Author(s):

Qing’e Wang ◽

Kai Zheng ◽

Huanan Yu ◽

Luwei Zhao ◽

Xuan Zhu ◽

...

Keyword(s):

Photocatalytic Degradation ◽

Oil Pollution ◽

Road Surface ◽

Test Method ◽

Driving Safety ◽

The Road ◽

Road Surfaces ◽

The Many ◽

The Impact ◽

Degradation Effect

AbstractOil leak from vehicles is one of the most common pollution types of the road. The spilled oil could be retained on the surface and spread in the air voids of the road, which results in a decrease in the friction coefficient of the road, affects driving safety, and causes damage to pavement materials over time. Photocatalytic degradation through nano-TiO2 is a safe, long-lasting, and sustainable technology among the many methods for treating oil contamination on road surfaces. In this study, the nano-TiO2 photocatalytic degradation effect of road surface oil pollution was evaluated through the lab experiment. First, a glass dish was used as a substrate to determine the basic working condition of the test; then, a test method considering the impact of different oil erosion degrees was proposed to eliminate the effect of oil erosion on asphalt pavement and leakage on cement pavement, which led to the development of a lab test method for the nano-TiO2 photocatalytic degradation effect of oil pollution on different road surfaces.

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Effects of Coupling Agents on the Mechanical Properties of the Calcium Carbonate-Plastic Composite Packaging Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.200.321 ◽

2012 ◽

Vol 200 ◽

pp. 321-324 ◽

Cited By ~ 1

Author(s):

Zhao Xia Wang ◽

De Gao ◽

Wen Cai Xu

Keyword(s):

Mechanical Properties ◽

Calcium Carbonate ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Great Influence ◽

Coupling Agents ◽

Packaging Materials ◽

Plastic Composite ◽

Silane Coupling ◽

The Impact

Mechanical properties of the calcium-plastic composite have a great influence on the containers. The main factors affecting the mechanical properties are the process and material formulations. This paper mainly describes its impact of the addition of coupling agent. Under the usage of analysis of variance on single factor experiment, the mechanical properties of the calcium carbonate-plastic composite with three different coupling agents (silane, titanate and aluminate) were studied in the same test conditions. The results show that: The type and quantity of the coupling agent effect a lot on the mechanical properties of the composite. The silane coupling agent is the most suitable for calcium carbonate-plastic composite packaging materials, and the compatibility of calcium carbonate and polyethylene can be improved. When the silane coupling agent was at a 2.25 wt. % concentration, the tensile and flexural strength were improved obviously, especially the tensile strength increased by 23.24%, but the impact strength improved slightly.

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The Preparation of Flexible Substrate Using BaTiO3/Polymer Composites for Application in High Frequency Devices

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.512-515.1142 ◽

2012 ◽

Vol 512-515 ◽

pp. 1142-1145 ◽

Cited By ~ 1

Author(s):

Chien Min Cheng ◽

Kai Huang Chen ◽

Yuan Tai Hsieh ◽

Fuh Cheng Jong

Keyword(s):

Coupling Agent ◽

Silane Coupling Agent ◽

Flexible Substrate ◽

Sol Gel ◽

Ceramic Powder ◽

Electrical Measurement ◽

Organic Polymer ◽

Physical Analysis ◽

Silane Coupling ◽

The Impact

BaTiO3/ which has good dielectric properties, they were widely used in ceramic capacitors, thermistors, etc. In this study, BaTiO3/ ceramics prepared by sol-gel powder, then mixed in the organic polymer polyether imide (PEI) and dispersant (surface active agents) and silane coupling agent (Silane Coupling Agent) of the composite material on flexible substrates, And analysis of its properties and electrical properties. Increase by a ceramic powder, to explore the impact of the substrate. In the physical analysis is used XRD, SEM to measure the intensity of crystalline phase and surface uniformity of the electrical measurement using HP4294 measuring dielectric constant and dielectric loss.

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Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Polymers ◽

10.3390/polym12040947 ◽

2020 ◽

Vol 12 (4) ◽

pp. 947 ◽

Cited By ~ 1

Author(s):

Min Wu ◽

Xuetong Tong ◽

Hui Wang ◽

Lin Hua ◽

Yizhe Chen

Keyword(s):

Shear Strength ◽

Chemical Bond ◽

Ultrasonic Vibration ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Adhesive Bonding ◽

Adhesive Layer ◽

Al Alloy ◽

Silane Coupling ◽

The Impact

Adhesive bonding is widely used in the joining of metals and carbon fiber-reinforced plastics (CFRPs). Ultrasonic vibration was used to improve adhesive bonding of CFRP/Al alloy joints grafted with silane coupling agent, and the effect of the ultrasound on the bonding was studied. The surface of Al alloy was treated with a silane coupling agent, and then the ultrasonic vibration was applied on the adherend during the adhesive bonding process. The shear strength was tested, and the mechanism was analyzed by scanning electron microscope (SEM) and Fourier transform infrared spectrometer (FTIR). It is found that the ultrasonic assisting can further promote the bonding of the Al alloy and the adhesive. For the test joins, the shear strength was increased by 267.50% using the silanization treatment plus the ultrasonic assisting. The ultrasonic assisting promoted the grafted epoxy group to react with the adhesive more sufficiently at the Al/adhesive interface by causing micro-mixing and intensified molecule collision, and thus more chemical bond was formed. Under the ultrasonic action, the interface and the adhesive layer became tighter owing to the impact contact at the interface and the oscillating flow in the adhesive layer. The ultrasonic vibration assisting increased the bonding strength by promoting the chemical bond and improving physical morphology.

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Surface Modification Methods to Improve UV Inkjet Printing Performance of Ceramic

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.731.476 ◽

2015 ◽

Vol 731 ◽

pp. 476-480

Author(s):

Zheng Jian Zhang ◽

Li Ying Yang ◽

Shi Liang Zhu ◽

Hai Ying Yang

Keyword(s):

Inkjet Printing ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Raw Materials ◽

Three Dimensional ◽

Ceramic Materials ◽

Print Quality ◽

Printing Quality ◽

Silane Coupling ◽

The Impact

Using UV inkjet printing can achieve three-dimensional printing of ceramic materials, but there is low ink adhesion, easy to fall off and other issues, surface coated modification to high smoothness ceramic materials can solve the above problems [1]. In this study, the silane coupling agent, adhesive, resin and other raw materials prepared for transparent coating, which applied to the surface of the ceramics. The impact of process parameters and coating formulation on the UV print quality of the ceramic base was systematic analyzed, the result shows that the volume concentration of 10% KH550 silane coupling agent as primer, and using 20wt% 102 multipurpose plastic glue for surface coating, better ink adhesion and printing quality can be obtained.

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Preparation and Mechanical Properties of HA/PHB Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.105-106.104 ◽

2010 ◽

Vol 105-106 ◽

pp. 104-107 ◽

Cited By ~ 2

Author(s):

Zhi Qi Zhuo ◽

Li Min Dong ◽

Cheng Wang ◽

Qing Feng Zan ◽

Jie Mo Tian

Keyword(s):

Mechanical Properties ◽

Composite Material ◽

Composite Materials ◽

Fracture Surface ◽

Surface Treatment ◽

Coupling Agent ◽

Silane Coupling Agent ◽

Bending Strength ◽

Silane Coupling ◽

The Impact

This paper focuses on the influence on the mechanical properties of hydroxyapatite / poly-hydroxybutyrate (HA / PHB) composites by different HA contents, and the effect of Silane coupling agent on improving the interface of HA/PHB composite materials. The HA/PHB composites were prepared by ball milling, hot-pressing, the HA content were 0, 5, 10, 15, 20 and 30wt%, respectively. Silane coupling agent was used for HA surface treatment in HA/PHB composites to compare with not having HA surface treatment in HA/PHB composite materials. The impact strength and flexural strength of HA / PHB composites were tested, and the microstructure of the fracture surface was observed by SEM. The results showed that HA could enhance the bending strength of HA/PHB composites. With HA content increased, the bending strength increased first and then decreased, when the HA content was 10wt%, the maximum bending strength reached 32.74MPa, increased about 41% comparing with pure PHB. Silane coupling agent can improve the interface of HA / PHB, then enhance the mechanical strength. When the HA content was 15wt%, the maximum bending strength reached 46.6MPa, Increased about 56% comparing with the same proportion of untreated HA/PHB composite material, and about double comparing with pure PHB.

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Development of Eco-Friendly Flame-Retarded High Density Polyethylene Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.847.55 ◽

2020 ◽

Vol 847 ◽

pp. 55-60

Author(s):

Yeng Fong Shih ◽

Wan Ling Tsai ◽

Venkata Krishna Kotharangannagari

Keyword(s):

Impact Strength ◽

Flame Retardant ◽

Coupling Agent ◽

High Density Polyethylene ◽

Silane Coupling Agent ◽

High Density ◽

Silane Coupling ◽

Surface Modified ◽

The Impact ◽

Modified Diatomite

The use of ammonium polyphosphate (APP) and expanded graphite (EG) as a flame retardant for polymer generally requires a relatively high amount of addition to achieve a flame-retardant effect, and is liable to cause a decrease in strength of the material. Therefore, in this study waste diatomite was used as an eco-friendly flame-retardant for high density polyethylene (HDPE) to reduce the amount of APP and EG and can reach the flame-retardant level. Moreover, the waste diatomite was heat treatment and surface modified by silane coupling agent to improve its compatibility with HDPE. The results show that the tensile strength of the HDPE drops sharply after the addition of the APP and EG. However, replace some of the APP and EG by the modified diatomite can slow down the decline and maintain the basic physical properties of the material. The impact strength of HDPE was also decreased by the addition of APP, EG and untreated diatomite. However, the impact strength of HDPE was increased after adding the surface modified diatomite. It can be seen from the experimental results that the addition of the waste diatomite modified by the silane coupling agent can reduce the usage of the flame retardant such as APP and EG, and increase the strength by increasing the compatibility between the plastic and the inorganic material. Moreover, this eco-friendly formulation can reach the UL-94 HB level, and it can be applied to interior decoration or as building materials in the future. Thus, it can not only recycle the wastes, but also reduce the threat caused by fire.

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