Adhesion Promoter and Anti-Sticking Layer Effects on Adhesion Properties Using Symmetric AFM Probe

2007 ◽  
Vol 26-28 ◽  
pp. 1113-1116 ◽  
Author(s):  
Hee Jung Lee ◽  
Seung Min Hyun ◽  
Hak Joo Lee ◽  
Dae Geun Choi ◽  
Dong Il Lee ◽  
...  
Keyword(s):  
Adhesion Force ◽  
Adhesion Test ◽  
Adhesion Promoter ◽  
Uv Curable ◽  
Adhesion Properties ◽  
Adhesion Promoters ◽  
Nano Structures ◽  
Mems Fabrication ◽  
Afm Probe ◽  
Nano Imprint

The reliable reproducibility of nano patterns or other nano structures is one of many issues in the nano-imprint lithography process. An important prerequisite for reproducibility is suitable adhesion properties of adhesion promoters or anti-sticking layer. In this study, rhombus shaped symmetrical probe with a flat tip was developed and fabricated using MEMS fabrication technique. For the experimental setup of the adhesion test using a UV curable PAK01 resin coated AFM tip with several adhesion promoters, the flat tip is covered by PAK01 resist using micromanipulator. Anti-sticking layers of silane agents were prepared on the tip by vapor deposition method. Adhesion force between various adhesion promoters (GPTS, APMDS, APTS, DUV30J, O2 planairzation) and PAK01 resist and the force between anti-sticking layer (FOTS, DDMS) and PAK01 resist were evaluated using the force-distance mode of AFM. Adhesion force of GPTS and FOTS are about 7180 nN and 1660 nN, respectively.

Measurement of Adhesion Force by a Symmetric AFM Probe for Nano-imprint Lithography Application

2008 ◽  
Vol 22 (13) ◽  
pp. 1379-1386 ◽  
Author(s):  
Hee-Jung Lee ◽  
Seungmin Hyun ◽  
Jae-Hyun Kim ◽  
Hak-Joo Lee ◽  
Dae-Geun Choi ◽  
...  
Keyword(s):  
Adhesion Force ◽  
Imprint Lithography ◽  
Afm Probe ◽  
Nano Imprint

scholarly journals Effectiveness of the iDOP-PH adhesion promoter in relation to adhesion of the pavement bitumen

2021 ◽  
pp. 201
Author(s):  
Yan Pyrig ◽  
Andrey Galkin ◽  
Pavlo Roman
Keyword(s):  
Thermal Stability ◽  
Research Work ◽  
Inhibitory Effect ◽  
Traffic Load ◽  
Adhesion Promoter ◽  
Adhesion Properties ◽  
Adhesion Promoters ◽  
The Road ◽  
Road Pavement ◽  
Standard Quality

Asphalt pavement is permanently influenced by various environmental conditions and traffic load. Because of this after a certain period numerous defects may appear on the surface of the road pavement. These defects include peeling, chipping, pots, cracks etc. The low water proof resistance of the asphalt concrete (conditioned by low adhesion of the bitumen to aggregate surface) is considered to be one of the reasons for appearance of these defects. Adhesion promoters’ use is the most common method to increase adhesion activity of pavement bitumen. Goal. The objective of the current research work is the evaluation of influence of the domestic adhesion promoter iDOP on the conventional and adhesion properties of bitumen. Methodology. To achieve this goal, the following was done: the effect of the adhesive promoter iDOP on the standard quality indicators of bitumen was determined according the requirements of the current standards DSTY 4044 and SOU 45.2-00018112-067; the effect of the adhesive promoter on the adhesion of bitumen to the glass surface (according to the DSTU B.V.2.7-81 method) and to the surface of aggregates with different mineralogy was evaluated by the rotating bottle method according to DSTU EN 12697-11; the thermal stability of the iDOP-PH promoter was tested by simulating the technological ageing of bitumen according to the method given in GOST 18180 and the RTFOT method. Results. Grounding on the experimental data obtained, it was found that the adhesive promoter iDOP-PH does not affect the standard indicators of the quality of bitumen (penetration, softening and breaking point temperatures, ductility). During hardening with the RTFOT method, a slight inhibitory effect of the promoter is observed, which appears as an increase in the values of residual penetration and ductility compared to bitumen without promoter. The iDOP-PH promoter increases the adhesive capacity of bitumen, which is confirmed by the adhesion data determined by the improved method given in GOST B.V.2.7-81 and the rolling bottle method. Originality. It is shown that the iDOP-PH promoter has a relevantly low thermal stability. With this the main factor affecting the decrease in thermal stability is the long time exposing of the binder at high temperature by GOST B.V.2.7-81 method. Practical value. It is shown that the promoter concentrations recommended by the supplier are insufficient, and to ensure the required values of the adhesion (standardized in СОУ 45.2-00018112-067) it is advisable to increase the concentration of the iDOP-PH promoter in bitumen to 0.3 - 0.6%.

Adhesion Test of Nanostructured Materials by a Novel AFM Probe

2007 ◽  
Vol 353-358 ◽  
pp. 2253-2256 ◽  
Author(s):  
Hak Joo Lee ◽  
Jae Hyun Kim ◽  
Ki Ho Cho ◽  
Seung Min Hyun ◽  
Jung Yup Kim ◽  
...  
Keyword(s):  
Mechanical Tests ◽  
Cyclic Olefin Copolymer ◽  
Adhesion Forces ◽  
Adhesion Test ◽  
Atomic Force ◽  
Mems Fabrication ◽  
Highly Sensitive ◽  
Sensitive Sensor ◽  
Afm Probe ◽  
Force Displacement

We have developed a novel atomic force microscope (AFM) probe as a highly sensitive sensor and an application of the probe into various mechanical tests for characterizing micro/nanostructures. Using MEMS fabrication technique, we have designed and fabricated rhombus-shaped symmetric AFM probe. Adhesion forces between silicon tip and artificial nano-hair structures of cyclic olefin copolymer (COC) and polypropylene (PP) were measured using the probe with a flat tip. The results exhibited the usual characteristics of force-displacement curves of COC and PP nano-hair structures, in which a pull-off force was detected at the point of unloading. The average adhesion forces of the COC and PP hair structures are about 9.48 μN and 10.67 μN, respectively.

scholarly journals Enhanced Corrosion Protection of Iron by Poly(3-hexylthiophene)/Poly(styrene-co-hydroxystyrene) Blends

Coatings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 383 ◽  
Author(s):  
Ming-Chia Tsai ◽  
Chung-Ru Yang ◽  
Jen-Hao Tsai ◽  
Yuan-Hsiang Yu ◽  
Ping-Tsung Huang
Keyword(s):  
Thermal Stability ◽  
Thermal Treatment ◽  
Adhesion Force ◽  
Hydroxyl Group ◽  
Adhesion Test ◽  
Adhesion Promoter ◽  
Protection Efficiency ◽  
Good Thermal Stability ◽  
Corrosion Of Iron ◽  
Anticorrosion Properties

Corrosion of iron in NaCl solution is significantly reduced by poly(3-hexylthiophene) (P3HT)/poly(styrene-co-hydroxystyrene)(PS-co-PHS) blended coating layers, especially at elevated temperature. The interaction between sulfur (in P3HT) and hydroxyl group (in PS-co-PHS) leads to enhanced miscibility between P3HT and PS-co-PHS and results in improved thermal stability upon thermal treatment. Adhesion force between iron and the coating layer is increased with increasing hydroxystyrene ratio as revealing by the adhesion test (ASTM 3359). Anticorrosion properties from electrochemical experiments indicate great improvement over the P3HT/PS blend. Protection efficiency (PE) of P3HT/PS-co-PHS blend on iron increases and corrosion rate (mils per year, MPY) decreases upon thermal treatment, making P3HT/PS-co-PHS blend an excellent corrosion inhibitor and adhesion promoter material to the iron, especially with good thermal stability.

Adhesion Promoter and Anti-Sticking Layer Effects on Adhesion Properties Using Symmetric AFM Probe

2007 ◽  
pp. 1113-1116
Author(s):  
Hee Jung Lee ◽  
Seung Min Hyun ◽  
Hak Joo Lee ◽  
Dae Geun Choi ◽  
Dong Il Lee ◽  
...  
Keyword(s):  
Adhesion Promoter ◽  
Adhesion Properties ◽  
Afm Probe

scholarly journals Synthesis and study of polyfunctional silicon-containing amines as adhesion promoters of epoxyamine compounds

2020 ◽  
Vol 64 (11) ◽  
pp. 28-32
Author(s):  
Christina Y. Ivanova ◽  
◽  
Mikhail V. Kuzmin ◽  
Oleg A. Kolyamshin ◽  
Nikolay I. Koltsov ◽  
...  
Keyword(s):  
Dissimilar Materials ◽  
Physical And Mechanical Properties ◽  
Molar Ratio ◽  
High Tech ◽  
Adhesion Promoter ◽  
Adhesion Properties ◽  
Synthesis Conditions ◽  
Adhesion Promoters ◽  
Light Yellow ◽  
Amine Compounds

At present, in order to obtain high-tech hybrid products, high demands are placed on modern adhesives for creating durable joints between dissimilar materials. It is known that adhesion depends on the compatibility of the adhesives with the surfaces of the materials. For epoxy compositions, amine compounds are the main hardeners. In this regard, in the presented work, silicon-containing amines were synthesized based on polyfunctional aminoalkoxysiloxanes for epoxy compositions, the strength of attachment of which to various metal substrates was studied using these adhesion promoters. Aminoalkoxysiloxanes were prepared by reacting 3-aminopropyltriethoxysilane with monoethanolamine in nitrogen at atmospheric pressure in the presence of a binary antioxidant and catalytic amounts of an alkali metal alcoholate. To carry out the reaction in a homogeneous phase, the reaction mixture was heated to a temperature of 100-110 °C and distilled off to 90% of ethanol from the theoretically calculated amount. Further, the reaction was carried out at a reduced temperature of 10-20 millimeter of mercury pressure until the release of alcohol stops. At the same time, gravimetric control was carried out and the refractive index of the reaction mixture was measured. As a result, aminoalkoxysilanes were obtained in the form of light-yellow oily liquids. The structure of the obtained compounds was investigated by IR-spectroscopy on a Fourier spectrophotometer FSM-1202 and 1H NMR-spectroscopy on a high-resolution BrukerWM-250 NMR-spectrometer. It was found that under the selected synthesis conditions, aminopropyl-tri-(2-aminoethoxy)silane is obtained with the highest yield of 97.6% at a molar ratio of 3-aminopropyltriethoxysilane (AGM-9) with monoethanolamine 1: 3. The obtained compounds were used in the composition of epoxy compounds in order to improve their physical and mechanical properties. The adhesion properties of epoxy compositions based on ED-22 epoxy resin and isophorone diamine were studied using synthesized polyfunctional aminoalkoxysiloxanes as adhesion promoters. It was found that the most effective adhesion promoter is aminopropyl-tri-(2-aminoethoxy) silane.

scholarly journals Experimental Research on the Impact of Interface Temperature on the Adhesion Properties of Clay under the Condition of Different Contacting Time

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Tao Qiu ◽  
Yonggang Zhang
Keyword(s):  
Adhesion Force ◽  
Interface Temperature ◽  
Heating Process ◽  
Adhesion Properties ◽  
Interfacial Temperature ◽  
Short Time ◽  
Hot Surface ◽  
Shield Machine ◽  
The Impact

Mud cakes are very likely to occur at the shield cutter when the shield machine passes through a clay stratum, which adhere to the cutter and reduce the excavation efficiency. Due to the thrust of the cutter, the mud cakes are compacted and cause friction at the soil-structure interface, which results in high temperature and aggravates the adhesion, and the effect tends to become stronger as the heating process lasts. In this paper, the effects of the interface temperature and the contacting time between the soil and the hot surface on the adhesion properties of the soil were studied by a self-made adhesion test device. According to the findings, at low interfacial temperature (≤40°C), both the adhesion force and the amount of adhered soil were insignificant in a short term, and the effects were found to be strengthened as the contacting time went on; at the high interfacial temperature (≥50°C), very significant soil adhesion occurred at the structure surface within a short time, and as the contacting time increased, the amount of the adhered soil decreased rapidly while the adhesion force kept increasing, and both tended to remain a constant and become independent with the temperature after a long-term contact. This study is of guiding significance for understanding the formation and development of the shield mud cakes during shield construction.

Evaluation of thermal and physical properties of PMMA/PMVEMA-ES blends as organic coating

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shameer Hisham ◽  
Hairul Anuar Tajuddin ◽  
Norazilawati Muhamad Sarih ◽  
Nur Zarith Diana Diana Zakaria ◽  
Zul Hazrin Zainal Abidin ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Physical Properties ◽  
Organic Coating ◽  
Adhesion Property ◽  
Intermolecular Hydrogen Bonding ◽  
Scanning Calorimetry ◽  
Adhesion Promoter ◽  
Adhesion Properties ◽  
Content Type ◽  
The Impact

Purpose In this work, the blends of poly(methyl methacrylate), PMMA and poly(methyl vinyl ether-alt-maleic acid monoethyl ester), PMVEMA-ES are studied as organic coatings to evaluate the impact of intermolecular hydrogen bonding on the physical and thermal characteristics of the prepared coatings. Design/methodology/approach PMMA (Mw = 120,000 g mol-1) was chosen as our binder material. Due to the low adhesion property of PMMA on polar substrates, it was blended with PMVEMA-ES, which contains polar –COOH groups, to improve the adhesion and thermal properties of the coatings by forming intermolecular hydrogen bonds. A cross-hatch adhesion test was carried out to evaluate the adhesion strength of different ratios of PMMA/PMVEMA-ES blends as coatings. In addition, changes in the glass-transition temperature, Tg as the composition varies were studied using Differential Scanning Calorimetry, DSC. Then, glossiness and hiding power tests were also conducted to evaluate the physical properties of the prepared coatings. Findings Upon a closer look at the DSC results, it was found that blends consisting of 12.5, 25.0 and 87.5 wt. % PMMA were completely compatible due to the presence of only a single Tg in their thermograms. Other blend compositions showed two distinct Tgs, indicating partial compatibility. Furthermore, the addition of PMVEMA-ES caused the Tg of PMMA to shift to lower temperatures, a strong indication of intermolecular hydrogen bonding interactions between the two components. From the cross-hatch adhesion results, the addition of PMVEMA-ES improved the adhesion properties of PMMA coating, except for blends consisting of 62.5 and 75.0 wt. % PMMA possibly due to the partial incompatibility between the two components. These findings were further corroborated with the results of glossiness and hiding power measurements. The superior result was seen for the blend consisting of 12.5 wt. % PMMA with strong adhesion property, high glossiness, compatibility and high translucency. Practical implications PMVEMA-ES can potentially be used as an adhesion promoter in PMMA-based coating formulations. Originality/value This is the first report on the properties of PMMA/PMVEMA-ES blends as coatings.

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