Polyethyleneimine as a surface activator for low surface energy substrates bonded with cyanoacrylate adhesives

2021 ◽  
pp. 102840
Author(s):  
Rajesh V. Prabhu ◽  
Praneeta Shetty ◽  
Ramanand Jagtap ◽  
Mohanlal Digar
Keyword(s):  
Surface Energy ◽  
Energy Substrates ◽  
Low Surface Energy

scholarly journals Nonthermal Plasma Treatment Improves Uniformity and Adherence of Cyclodextrin-Based Coatings on Hydrophobic Polymer Substrates

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1056
Author(s):  
Greg D. Learn ◽  
Emerson J. Lai ◽  
Horst A. von Recum
Keyword(s):  
Surface Energy ◽  
Photoelectron Spectroscopy ◽  
Substrate Surface ◽  
Nonthermal Plasma ◽  
Energy Substrates ◽  
Low Surface Energy ◽  
Lap Shear ◽  
Plasma Effects ◽  
Coating Uniformity ◽  
And Performance

Low surface energy substrates, which include many plastics and polymers, present challenges toward achieving uniform, adherent coatings, thus limiting intended coating function. These inert materials are common in various applications due to favorable bulk, despite suboptimal surface, properties. The ability to functionally coat low surface energy substrates holds broad value for uses across medicine and industry. Cyclodextrin-based materials represent an emerging, widely useful class of coatings, which have previously been explored for numerous purposes involving sustained release, enhanced sorption, and reversible reuse thereof. In this study, substrate exposure to nonthermal plasma was explored as a novel means to improve uniformity and adherence of cyclodextrin-based polyurethane coatings upon unreceptive polypropylene substrates. Plasma effects on substrates were investigated using contact angle goniometry and X-ray photoelectron spectroscopy (XPS). Plasma impact on coating uniformity was assessed through visualization directly and microscopically. Plasma effects on coating adhesion and bonding were studied with mechanical lap-shear testing and XPS, respectively. Substrate surface wettability and oxygen content increased with plasma exposure, and these modifications were associated with improved coating uniformity, adhesion, and interfacial covalent bonding. Findings demonstrate utility of, and elucidate mechanisms behind, plasma-based surface activation for improving coating uniformity, adherence, and performance on inert polymeric substrates.

Adhesion improvement of the acrylic pressure-sensitive adhesive to low-surface-energy substrates using silicone urethane dimethacrylates

2020 ◽  
Vol 137 ◽  
pp. 109949 ◽  
Author(s):  
Hee-Woong Park ◽  
Hyun-Su Seo ◽  
Jung-Hyun Lee ◽  
Seunghan Shin
Keyword(s):  
Surface Energy ◽  
Pressure Sensitive Adhesive ◽  
Energy Substrates ◽  
Low Surface Energy ◽  
Pressure Sensitive

Preparation and characterization of fluorinated acrylic pressure sensitive adhesives for low surface energy substrates

2015 ◽  
Vol 180 ◽  
pp. 103-109 ◽  
Author(s):  
Yu Wang ◽  
Jun Long ◽  
Yongping Bai ◽  
Chun Zhang ◽  
Baoqiang Cheng ◽  
...  
Keyword(s):  
Surface Energy ◽  
Energy Substrates ◽  
Pressure Sensitive Adhesives ◽  
Low Surface Energy ◽  
Pressure Sensitive

Cytocompatibility of Carbon Nanofiber Materials for Neural Applications

2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster
Keyword(s):  
Carbon Fiber ◽  
Surface Energy ◽  
Carbon Nanofibers ◽  
Carbon Fibers ◽  
Carbon Nanofiber ◽  
Fiber Composite ◽  
Scar Tissue ◽  
Pc 12 Cells ◽  
Low Surface Energy ◽  
Poly Carbonate

AbstractSince the cytocompatibility of carbon nanofibers with respect to neural applications remains largely uninvestigated, the objective of the present in vitro study was to determine cytocompatibility properties of formulations containing carbon nanofibers. Carbon fiber substrates were prepared from four different types of carbon fibers, two with nanoscale diameters (nanophase, or less than or equal to 100 nm) and two with conventional diameters (or greater than 200 nm). Within these two categories, both a high and a low surface energy fiber were investigated and tested. Astrocytes (glial scar tissue-forming cells) and pheochromocytoma cells (PC-12; neuronal-like cells) were seeded separately onto the substrates. Results provided the first evidence that astrocytes preferentially adhered on the carbon fiber that had the largest diameter and the lowest surface energy. PC-12 cells exhibited the most neurites on the carbon fiber with nanodimensions and low surface energy. These results may indicate that PC-12 cells prefer nanoscale carbon fibers while astrocytes prefer conventional scale fibers. A composite was formed from poly-carbonate urethane and the 60 nm carbon fiber. Composite substrates were thus formed using different weight percentages of this fiber in the polymer matrix. Increased astrocyte adherence and PC-12 neurite density corresponded to decreasing amounts of the carbon nanofibers in the poly-carbonate urethane matrices. Controlling carbon fiber diameter may be an approach for increasing implant contact with neurons and decreasing scar tissue formation.

Corrigendum to “Fabrication superhydrophobic composite membranes with hierarchical geometries and low-surface-energy modifications” [Polymer 211 (2020) 123097]

Polymer ◽  
2021 ◽  
Vol 217 ◽  
pp. 123481
Author(s):  
Zhanhui Gan ◽  
Deyu Kong ◽  
Qianqian Yu ◽  
Yifan Jia ◽  
Xue-Hui Dong ◽  
...  
Keyword(s):  
Surface Energy ◽  
Composite Membranes ◽  
Low Surface Energy

Bio-mimicking hybrid polymer architectures as adhesion promoters for low and high surface energy substrates

2021 ◽  
Author(s):  
Monisha Baby ◽  
Vijayalakshmi K. Periya ◽  
Bhuvaneshwari Soundiraraju ◽  
Nisha Balachandran ◽  
Suchithra Cheriyan ◽  
...  
Keyword(s):  
Surface Energy ◽  
High Surface ◽  
Hybrid Polymer ◽  
Energy Substrates ◽  
Adhesion Promoters ◽  
Polymer Architectures ◽  
High Surface Energy

scholarly journals Automated pick-and-place of single nanoparticle using electrically controlled low-surface energy nanotweezer

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035219
Author(s):  
Ya-Kun Lyu ◽  
Zuo-Tao Ji ◽  
Tao He ◽  
Zhenda Lu ◽  
Weihua Zhang
Keyword(s):  
Surface Energy ◽  
Low Surface Energy ◽  
Single Nanoparticle ◽  
Pick And Place

scholarly journals Low Surface Energy Polymeric Films from Novel Fluorinated Blocked Isocyanates

2004 ◽  
Vol 37 (2) ◽  
pp. 408-413 ◽  
Author(s):  
L. van Ravenstein ◽  
W. Ming ◽  
R. D. van de Grampel ◽  
R. van der Linde ◽  
G. de With ◽  
...  
Keyword(s):  
Surface Energy ◽  
Polymeric Films ◽  
Low Surface Energy

Development of a Directly Patterned Low-Surface-Energy Polymer Brush in Supercritical Carbon Dioxide

2009 ◽  
Vol 1 (9) ◽  
pp. 2013-2020 ◽  
Author(s):  
Abhinav Rastogi ◽  
Marvin Y. Paik ◽  
Christopher K. Ober
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Surface Energy ◽  
Polymer Brush ◽  
Low Surface Energy ◽  
Supercritical Carbon

Low Surface Energy Polyurethane Coatings Based on Acrylic Copolymer and Polyisocyanate Modified with an Organosilicon Block Copolymer

2021 ◽  
Vol 94 (5) ◽  
pp. 647-655
Author(s):  
D. A. Erofeev ◽  
L. N. Mashlyakovskii ◽  
E. V. Khomko ◽  
G. E. Litosov
Keyword(s):  
Block Copolymer ◽  
Surface Energy ◽  
Acrylic Copolymer ◽  
Polyurethane Coatings ◽  
Low Surface Energy
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