نتایج جستجو برای: cationic polyurethane dispersion

تعداد نتایج: 87405  

Journal: : 2023

The article provides a short overview of the application metal nanoparticles in textile indus- try, describes their properties and application`s fields. definitions electrification, electrostatic field, electric charge density are given. processing fabrics by polyurethane dispersion technological processes materials finishing is justified. objects study cotton fabric`s samples with addition syn...

The effect of different parameters including: nano silica content, curing temperature, type of hardener, and flash-off time on mechanical and optical properties of polyurethane PU based clearcoat was investigated via standard Taguchi L9 method. Dispersion of nano silica in the resultant nanocomposites was explored by scanning electron microscopy SEM. SEM images showed a fine dispersion through ...

2017
Paula M Carmona-Quiroga Robert M J Jacobs Sagrario Martínez-Ramírez Heather A Viles

Extending the use of novel anti-graffiti coatings to built heritage could be of particular interest providing the treatments are efficient enough in facilitating graffiti removal and long-lasting to maintain their protective properties without interfering with the durability of the substrates. However, studies of the durability of these coatings are scarce and have been mainly carried out under...

2012
Johnson H. Y. Chung Menno L. W. Knetsch Leo H. Koole Anne Simmons Laura A. Poole-Warren

Polymer clay nanocomposites (NCs) show remarkable potential in the field of drug delivery due to their enhanced barrier properties. It is hypothesised that well dispersed clay particles within the polymer matrix create a tortuous pathway for diffusing therapeutic molecules, thereby resulting in more sustained release of the drug. As coatings for medical devices, these materials can simultaneous...

Journal: :iranian journal of allergy, asthma and immunology 0
mohammad reza khakzad zakaria research center, islamic azad university- mashhad branch, mashhad, iran majid mirsadraee department of pulmonary medicine, islamic azad university, mashhad branch, mashhad, iran mojtaba sankian immunobiochemistry lab, bu-ali research institute, mashhad university of medical sciences, mashhad, abdolreza varasteh immunobiochemistry lab, bu-ali research institute, mashhad university of medical sciences, mashhad, mojtaba meshkat zakaria research center, islamic azad university- mashhad branch, mashhad, iran

spirometry has been used as a common diagnostic test in asthma. most of the patients with a mild asthma have a fev1 within normal range. hence, other diagnostic methods are usually used. the aim of this study was to evaluate whether eosinophil cationic protein (ecp) could be an accurate diagnostic marker of mild asthma. in this study diagnosis of asthma was made according to internationally acc...

Journal: :Electrophoresis 2013
Jun Cao Ping Li Jue Chen Ting Tan Han-Bin Dai

A novel additive of multi-walled carbon nanotubes (MWNTs) dispersed with cationic surfactants or mixed cationic/anionic surfactants was used for MEEKC separation of eight phenolic compounds, four glycosides, and one phenanthraquinone. In this context, several parameters affecting MEEKC separation were studied, including the dispersion agents of MWNTs, MWNTs content, oil type, SDS concentration,...

Journal: :Molecules 2017
Sariah Saalah Luqman Chuah Abdullah Min Min Aung Dayang Radiah Awang Biak Mahiran Basri Emiliana Rose Jusoh Suhaini Mamat

A low cost, abundant, and renewable vegetable oil source has been gaining increasing attention due to its potential to be chemically modified to polyol and thence to become an alternative replacement for the petroleum-based polyol in polyurethane production. In this study, jatropha oil-based polyol (JOL) was synthesised from non-edible jatropha oil by a two steps process, namely epoxidation and...

2012
Priya A Nair Parameswaran Ramesh

In this study, a calcium-containing monomer, namely calcium lactate, was used for the synthesis of calcium-containing polyurethane for use in biomedical applications. Ether-based polyurethane was prepared using poly(oxytetramethylene)glycol, hexamethylene diisocyanate and calcium lactate. The prepared polymer was characterized by FTIR spectroscopy, which confirmed the presence of ionic linkages...

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