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Tytuł:
Potential of Cassava Peel as a biotechnical nutrient carrier for Organic Fertilizer Production to Increase Crop Production and Soil Fertility
Autorzy:
Adiaha, Monday Sunday
Powiązania:
https://bibliotekanauki.pl/articles/1179649.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biofertilizer
Carrier material
Cassava peel
Soil improvement
crop Yield
Opis:
Cassava peel has shown the potential of been efficient as a carrier material for biofertilizer production. Cassava peels are in large quantity and practically of no economic value in many developing nations, thus, satisfy criteria for its adoption as a biofertilizer-carrier material. The study evaluated the potential of cassava peel as a biofertilizer nutrient carrier and its effect on maize growth. Cassava peel has been found to have low moisture content and bulk density, high porosity and good water absorption capacity which aids inoculant organism survival as indicated in the significant (p< 0.05) increased in plant growth parameters, which stands higher (p < 0.05) over the control, with highest plant height and number of leaves produced at an application rate of 12t ha-1 biofertilizer.
Źródło:
World Scientific News; 2017, 72; 103-107
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of reactive dye from aqueous solutions using banana peel and sugarcane bagasse as biosorbents
Autorzy:
Ahmed, Arif Eftekhar
Majewska-Nowak, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2032951.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
reactive dye
biosorption
Eurozol Navy Blue
ENB
banana peel
barwnik reaktywny
biosorpcja
skórka banana
Opis:
The adsorption of Eurozol Navy Blue (ENB) reactive dye was examined using banana peel and sugarcane bagasse powders. Several parameters such as pH, contact time, agitation speed, temperature, initial dye concentration, and adsorbent dosage were considered and their impact on dye adsorption efficiency was evaluated. The removal percentages of ENB dye due to adsorption on banana peel and sugarcane bagasse were 72% and 70%, respectively. Simultaneous dosing of both biosorbents resulted in 68% dye removal. The Langmuir isotherm model was found to fit the adsorption of ENB dye on banana peel and sugarcane bagasse powders. The corresponding maximum adsorption capacities were equal to 24.09, 32.46, and 27.54 mg/g for banana peel powder, sugarcane bagasse powder, and the mixture of adsorbents, respectively.
Źródło:
Environment Protection Engineering; 2020, 46, 3; 121-135
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Welding Current and Time on Tensile-Peel Loading in Resistance Spot Welding of SPA-H Steel Sheets Used in Railway Vehicles
Autorzy:
Akkaş, N.
Powiązania:
https://bibliotekanauki.pl/articles/1031788.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
resistance spot welding
tensile-peel loading
weathering steel sheets
Opis:
This paper presents an experimental study on resistance spot welding of SPA-H weathering steel sheets used in side wall and roof application of rail vehicle bodies. SPA-H steel sheets having 2.3 mm thicknesses were joined by using resistance spot welding as lap joint. A timer and current controlled resistance spot welding machine having 120 kVA capacity and a pneumatic application mechanism with a single lever was used to prepare the specimens. Welding periods were chosen as 10, 15, 20, 25, and 30 periods (1 period =0.02 s) and also welding currents were increased from 6 kA up to 11 kA by rise of 0.5 kA. The electrode force was kept constant at 4 kN. The prepared welding specimens were exposed to tensile-peel test and the obtained results were supported by diagrams and, finally, appropriate welding current and time were advised to the users.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 549-552
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilizing Activated Carbon Developed from Banana Peels as Permeable Reactive Barrier in Copper Removal from Polluted Groundwater
Autorzy:
Al Haider, Shahzanan Abbas
Al Fatlawi, Suad
Nasir, Mohsin J.
Powiązania:
https://bibliotekanauki.pl/articles/2025814.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
copper
banana peel
ground water
activated carbon
permeable reactive barrier
migration
Opis:
The opportunity of utilizing activated carbon prepared from banana peels (BPAC) as a permeable reactive barrier (PRB) to eliminate copper Cu$\text{}^{+2}$ from the contaminated ground water has been explored. The activated carbon was prepared from banana peels by chemical activation utilizing a drenching agent, for example, a phosphoric acid (H$\text{}_{3}$PO$\text{}_{4}$). The Influence of different factors including initial copper amount, contacting duration, agitation speed, initial pH of the solution and sorbent dosage was studied in batch experiments. The optimum magnitudes for these factors that resulted in the highest copper removing efficacy (96%) were 40 minutes, 6, 250 rpm, 50 mg/l, and 1 mg/100 ml, respectively. The isotherm models of Freundlich and Langmuir have been utilized to analyze the sorption data for Cu$\text{}^{+2}$ ions acquired via batch studies. The Langmuir model has been utilized to explain the sorption of Cu$\text{}^{+2}$ onto BPAC, according to the findings. The partial differential formulas that describe copper transport in one–dimensional (1D) under equilibrium conditions have been solved utilizing COMSOL Multiphysics 3.5a software based on the finite element technique. The PRB has a significant function in preventing the copper plume from moving, according to the expected findings (COMSOL solution) and experimental findings. Finally, the excellent agreement between anticipated (theoretical) and actual findings, with an RMSE of less comparison with 0.1%, demonstrated that these techniques are useful and efficient instruments for describing copper transport processes.
Źródło:
Journal of Ecological Engineering; 2022, 23, 1; 83-90
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of organic waste for adsorption of Zn(II) and Cd(II) ions
Autorzy:
Bakalár, Tomáš
Pavolová, Henrieta
Powiązania:
https://bibliotekanauki.pl/articles/208191.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
cadmium
zinc
hazelnut
orange peel
heavy metals
Freundlich isotherm
kadm
cynk
orzech laskowy
skórka pomarańczowa
metale ciężkie
Izoterma Freundlicha
Opis:
Biosorption of Zn(II) and Cd(II) ions from aqueous solutions onto organic waste – orange peel, hazelnut shell, and walnut shell was studied using batch adsorption experiments. In the biosorption studies, equilibrium metal ion concentration was determined. Experimental data obtained were analysed in terms of Freundlich, Langmuir, Temkin, Dubinin–Radushkevich, Redlich–Peterson, Sips, Toth, and Khan isotherms. The results of the study showed that orange peel, hazelnut shell, and walnut shell can be adequately used as low-cost alternatives for the removal of Zn(II) and Cd(II) ions from aqueous solutions with maximum sorption capacities of 15.51 and 19.8 mg/g, 11.55 and 16.65 mg/g, and 26.60 and 21.10 mg/g, respectively. The highest removal efficiency of Zn(II) and Cd(II) ions was obtained for hazelnut shells. The process was fast and about 90% of metal ions were removed by all the studied biosorbents. The sorption process was possibly chemisorption occurring on a heterogeneous surface.
Źródło:
Environment Protection Engineering; 2019, 45, 2; 35-54
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acrylic Acid Plasma Treatment of Polypropylene Nonwoven Fabric
Włókniny polipropylenowe poddane obróbce plazmowej z zastosowaniem kwasu akrylowego
Autorzy:
Buček, A.
Popelka, A.
Zahoranová, A.
Kováčik, D.
Novák, I.
Černák, M.
Powiązania:
https://bibliotekanauki.pl/articles/233415.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
plasma treatment
hydrogel
diaphragm discharge
plasma grafting
biocompatibility
peel strength
obróbka plazmowa
hydrożel
biozgodność
kwas akrylowy
włókniny polipropylenowe
Opis:
Nowadays hydrogel materials are being used in medical practice for wound dressing purposes. Hydrogel/textile composites can be formed to increase the mechanical strength and handling capability of hydrogel materials. Nonwoven textiles are optional for such applications, however, it is often necessary to improve their surface properties. Here plasma activation/grafting of polypropylene (PP) nonwoven fabric with an acrylate layer to improve its adhesive properties is reported. A diaphragm discharge was used for the plasma treatment of the PP fabric. The discharge was burnt in a solution of acrylic acid (AAc), which resulted in a single step process of plasma activation and plasma grafting of the fabric. Results of wettability testing and ATR-FTIR measurements showed the existence of a thin poly(acrylic acid) (PAAc) layer grafted on the fabric surface. Peel strength measurements showed a 4.7 fold increase in the peel strength when compared with untreated PP fabric.
Współcześnie materiały hydrożelowe używane są w wyrobach medycznych jako opatrunki na rany. Hydrożelowe kompozyty tekstylne formuje się dla zwiększenia mechanicznej wytrzymałości poręczności w stosowaniu. Włókniny są powszechnie stosowane do wyrobów medycznych, jednak jest konieczne polepszenie ich właściwości powierzchniowych. W badaniach zastosowano aktywację plazmową w celu pokrycia włóknin polipropylenowych warstwą akrylową dla polepszenia właściwości adhezyjnych. Wyładowania odbywały się w roztworze kwasu akrylowego co pozwoliło na przeprowadzenie jednostopniowego procesu aktywacji plazmowej. Wyniki pomiarów zwilżalności oraz badania ATR-FTIR wykazały istnienie cienkiej warstwy kwasu poliakrylowego na powierzchni włókniny. Stwierdzono 4.7 razy większą wytrzymałość na odrywanie w stosunku do włóknin niemodyfikowanych.
Źródło:
Fibres & Textiles in Eastern Europe; 2016, 6 (120); 161-164
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acrylic Pressure-Sensitive Adhesives Containing SiO2 Nanoparticles
Autorzy:
Czech, Z.
Kowalczyk, A.
Ortyl, J.
Świderska, J.
Powiązania:
https://bibliotekanauki.pl/articles/779344.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
pressure-sensitive adhesives
SiO2 nanoparticles
tack
peel adhesion
shrinkage
Opis:
The use of acrylic pressure-sensitive adhesives (PSAs) is increasing in a variety of industrial fi elds. They have been applied in the manufacture of mounting tapes, self-adhesive labels, protective fi lms, mas king tapes, splicing tapes, carrier-free tapes, sign and marking fi lms, and in diverse medical products, such as pads or self-adhesive bioelectrodes. In this study, the application of SiO2 nanoparticles in acrylic PSA was investigated. The properties of the newly synthesized and modifi ed PSA were evaluated via the tack, peel adhesion, shear-strength and shrinkage. It has been found that the nanotechnologically-reinforced systems consisting of monodisperse non-agglomerated SiO2 nanoparticles and self-crosslinked acrylic PSAs showed a great enhancement in tack, peel adhesion, shear resistance and shrinkage, without showing the disadvantages known to result from the use of other inorganic additives. In this paper we evaluate the performance of SiO2 nanoparticles with a size of about 30 nm as inorganic fi ller into the synthesized solvent-borne acrylic PSA.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 1; 12-14
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adhesion measurement of pressure-sensitive adhesives
Pomiar adhezji klejów samoprzylepnych
Autorzy:
Czech, Z.
Sowa, D.
Kowalczyk, A.
Świderska, J.
Powiązania:
https://bibliotekanauki.pl/articles/271070.pdf
Data publikacji:
2012
Wydawca:
Centralny Ośrodek Badawczo-Rozwojowy Aparatury Badawczej i Dydaktycznej, COBRABiD
Tematy:
adhezja
adhezja przy oddzieraniu
metody pomiaru
kleje samoprzylepne
adhesion
peel adhesion
measurement methods
pressure-sensitive adhesives
Opis:
The term pressure-sensitive adhesive (PSA) has a very precise technical definition and was dealt with extensively in the chemical literature. Pressure-sensitive adhesives (PSA) are nonmetallic materials used to bond other materials, mainly on their surfaces through adhesion and cohesion [1]. Adhesion and cohesion are phenomena, which may be described thermodynamically and chemically, but actually they cannot be measured precisely. It was shown [2] that the most important bonding processes are bonding by adhesion and bonding with pressure-sensitive adhesives. A theoretical treatment of adhesion in terms of intermolecular interaction is not just confined to bond energies; other important factors are the number of contact points of the interacting atoms or molecules, intermolecular distances, the mobility of atomic groups and the structure of neighboring matter. Adhesion on the area of PSA is described by mechanical interlocking, adsorption or thermodynamic theory, electrostatic theory, chemical bonding theory, diffusion theory, adhesive effect of thin liquid films and theory of weak boundary layers. Adhesion of PSA plays the significant role by the application of self-adhesive materials in different industry branches [3].
Pojęcie klej samoprzylepny jest bardzo precyzyjnie zdefiniowane i obszernie opisane w fachowej literaturze chemicznej. Kleje samoprzylepne to niemetaliczne materiały, służące do łączenia powierzchni różnorodnych materiałów poprzez adhezję oraz kohezję [1]. Adhezja oraz kohezja są zjawiskami, które można stosunkowo dokładnie opisać za pomocą termodynamiki oraz znanych reakcji chemicznych, lecz ich pomiar nie pozwala na daleko idącą precyzję. Udowodniono, że najważniejszymi procesami, prowadzącymi do bardzo trwałych połączeń, są połączenia związane z adhezją klejów samoprzylepnych [2]. Teoretyczne podstawy wielu teorii adhezji w połączeniu z oddziaływaniami energetycznymi są bardzo ważne, ale najważniejszymi parametrami zjawiska adhezji są: wielkość sklejanej powierzchni, odległość intermolekularna sklejanych powierzchni, ruchliwość, polarność oraz reaktywność grup funkcyjnych kleju samoprzylepnego. Adhezja klejów samoprzylepnych jest wyjaśniana i opisywana poprzez adhezję mechaniczną, adsorpcję, zależności termodynamiczne, teorię elektrostatyczną, teorię wiązań chemicznych, dyfuzję, teorię cienkich warstw granicznych oraz zwilżalność sklejanych powierzchni przez warstwę polimeru o właściwościach samoprzylepnych [3].
Źródło:
Aparatura Badawcza i Dydaktyczna; 2012, 17, 2; 7-11
2392-1765
Pojawia się w:
Aparatura Badawcza i Dydaktyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Butyl acrylate/4-acryloyloxy benzophenone copolymers as photoreactive UV-crosslinkable pressure-sensitive adhesives
Autorzy:
Czech, Z.
Butwin, A.
Powiązania:
https://bibliotekanauki.pl/articles/778713.pdf
Data publikacji:
2009
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
akrylan butylu
4-akryloiloksybenzofenon
kopolimery akrylanowe
kleje samoprzylepne
sieciowanie UV
kleistość
adhezja
kohezja
butyl acrylate
4-acryloyloxy benzophenone
acrylic copolymers
pressure-sensitive adhesives (PSAs)
UV-crosslinking
tack
peel adhesion
cohesion
Opis:
It has previously been shown that copolymers of butyl acrylate with 4-acryloyloxy benzophenone can be used as pressure-sensitive adhesives (PSAs). This paper presents the synthesis and application of a solvent-borne polymer system for the preparation of photoreactive UV-crosslinkable acrylic pressure-sensitive adhesives. Butyl acrylate/benzophenone copolymers with molecular mass in the range 180 000 to 480 000 Dalton were prepared by carrying out free-radical solution polymerization. These copolymers were found to be tacky but in some cases to possess insufficient cohesive strength after UV-crosslinking to be useful as PSAs. The other copolymers resulted in materials with the balance of cohesive and adhesive characteristics required of good PSAs. Some of the parameters affecting the pressure-sensitive adhesive properties of the copolymers are the concentration of 4-acryloyloxy benzophenone, the molecular mass of the polymeric components, the UV-reactivity, and properties such as tack, peel adhesion, and cohesion.
Źródło:
Polish Journal of Chemical Technology; 2009, 11, 3; 1-4
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the unsaturated photoinitiators kind on the properties of uv-crosslinkable acrylic pressure-sensitive adhesives
Autorzy:
Czech, Z.
Kowalczyk, A.
Górka, K.
Głuch, U.
Shao, L.
Świderska, J.
Powiązania:
https://bibliotekanauki.pl/articles/779106.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
pressure-sensitive adhesive
photoreactive
UV-crosslinking
tack
peel adhesion
shear strength
shrinkage
Opis:
UV-crossinkable pressure-sensitive adhesives (PSA) materials are called, in the adhesives trade photoreactive self-adhesive. UV-crosslinkable PSAs are designed after the UV-initiated crosslinking reaction to stick to almost any surface by a simple contact under light pressure. This special class of adhesives does not undergo any physical transformation or chemical reaction during the bonding process. Because of the rheological properties the adhesive must be fi nely tuned for the application, combining a carefully chosen polymer architecture and monomer composition with the proper addition of small additives called photoinitiators. The best way is using the unsaturated copolymerizable photoinitiators and their direct incorporation into polymer chain during the polymerization process. Progress in the coating technology and the development of novel photoreactive acrylic adhesives will open the door to new applications and an extended market penetration of UV-crosslinkable acrylic adhesive raw materials containing unsaturated copolymerizable photoinitiators incorporated into the polymer backbone. Photoreactive UV-crosslinkable acrylic PSA are characterized by good tack, good adhesion, excellent cohesion and very low shrinkage.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 3; 83-87
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New copolymerizable photoinitiators for radiation curing of acrylic PSA
Autorzy:
Czech, Z.
Sowa, D
Ragańska, P.
Powiązania:
https://bibliotekanauki.pl/articles/411993.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
copolymerizable photoinitiators
UV-crosslinking
pressure-sensitive adhesive (PSA)
acrylics
tack
peel adhesion
shear strength
Opis:
This article presents a new class of copolymerizable photoinitiators containing vinyloxycarbonyl groups, known such as organic carbonate or carbamate. Novel copolymerizable photoinitiators have been prepared through the reaction between vinyl chloroformate and hydroxyl groups containing photoreactive derivatives such as benzophenone-, acetophenone-, benzoine-and anthrachinone-derivatives. The main emphasis is given to the influence of this new class of unsaturated photoinitiators on UV-crosslinking process of acrylic pressure-sensitive adhesives (PSA). Moreover, the paper describes the influence of various parameters such as UV-initiated crosslinking time and concentration of unsaturated photoinitiators on relevant PSA properties like tack, peel adhesion and shear strength (cohesion).
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 8, 1; 57-65
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
UV-crosslinkable photoreactive pressure-sensitive adhesives synthesized from butyl acrylate and 4-acryloyloxy benzophenone
Autorzy:
Czech, Z.
Sowa, D.
Kowalska, J.
Powiązania:
https://bibliotekanauki.pl/articles/412260.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
butyl acrylate
4-acryloyloxy benzophenone
acrylics
pressure-sensitive adhesives (PSA)
UV-crosslinking
peel adhesion
shear strength
Opis:
The manuscript describes synthesized of photoreactive UV-crosslinkable solvent-borne acrylic pressure-sensitive adhesives (PSA) based on butyl acrylate (BA) and copolymerizable photoinitiator 4-acryloyloxy benzophenone (ABP) characterized by molecular mass in the range of 180 000 to 480 000 Dalton. These copolymers were tacky but possessed insufficient cohesive strength after UV-crosslinking to be useful as PSA. They resulted in materials having a balance of cohesive and adhesive characteristics required of good PSA. Some of the parameters affecting the pressure-sensitive adhesive properties of the copolymer are: amount of the 4-acryloyloxy benzophenone, molecular mass of the polymeric components, UV-reactivity and such important properties like tack, peel adhesion and shear strength.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 3; 21-28
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
UV-crosslinkable photoreactive self-adhesive hydrogels based on acrylics
Autorzy:
Czech, Z.
Antosik, A.K.
Bednarczyk, P.
Powiązania:
https://bibliotekanauki.pl/articles/778227.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
self-adhesive hydrogels
acrylics
UV-crosslinking
tack
peel adhesion
water adsorption
Opis:
Hydrogels are a unique class of macromolecular networks that can hold a large fraction of an aqueous solvent within their structure. They are suitable for biomedical area including controlled drug delivery and for technical applications as self-adhesive materials for bonding of wet surfaces. This paper describes photoreactive self-adhesive hydrogels based on acrylics crosslinked using UV radiation. They are prepared in ethyl acetate through radical polymerization of monomers mixture containing 2-ethylhexyl acrylate (2-EHA), butyl acrylate (BA), acrylic acid (AA) and copolymerizable photoinitiator 4-acryloyloxy benzophenone (ABP) at presence of radical starter 2.2’-azobis-diisobutyronitrile AIBN. The synthesized acrylic copolymers were determined by viscosity and GPC analysis and later modified using ethoxylated amines. 4-acryloyloxy benzophenone (ABP) was used as crosslinking monomer. After UV crosslinking the properties of these novel synthesized hydrogels, such as tack, peel adhesion, shears strength, elongation and water adsorption were also studied.
Źródło:
Polish Journal of Chemical Technology; 2016, 18, 2; 126-130
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water-borne pressure-sensitive adhesives acrylics modified using amorphous silica nanoparticles
Autorzy:
Czech, Z.
Maciejewski, Z.
Kondratowicz-Maciejewska, K.
Powiązania:
https://bibliotekanauki.pl/articles/779506.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
water-borne pressure-sensitive adhesives
acrylics
amorphous silica
tack
peel adhesion
shear strength
Opis:
The application of water-borne pressure-sensitive adhesives (PSA) based on acrylics is increasing in a variety of industrial areas. The have been used for manufacturing of double sided and carrier free mounting tapes, splicing tapes, marking and sign films, self-adhesive labels, packaging tapes, protective films and diverse high quality medical materials. Nano-sized inorganic fillers can modify diverse adhesive and self-adhesive coating properties such as tack, peel adhesion, shear strength at 20°C and 70°C, and removability Amorphous synthetic silica nanoparticles in form of water dispersions: Ludox PX-30 (30 wt.% silica stabilizing with counter ion sodium), Ludox PT-40 (40 wt.% silica stabilizing with counter ion sodium), Ludox PT-40AS (40 wt.% silica stabilizing with counter ion ammonium), and Ludox PW-50 (50 wt.% silica stabilizing with counter ion sodium) (from Grace) in concentrations between 1 and 5wt.% were used for modifying of water-born pressure-sensitive adhesive acrylics: Acronal 052, Acronal CR 516 (both BASF) and Plextol D273 (Synthomer) properties. It has been found in this study that the nano-technologically reinforced system containing of Acronal 052 and amorphous silica Ludox PX-30 showed a great enhancement in tack, peel adhesion and shear strength. In this paper we evaluate the performance of Acronal 052 modified with amorphous silica Ludox PX-30.
Źródło:
Polish Journal of Chemical Technology; 2016, 18, 4; 124-128
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality engineering implementation in an organization: a brief finding on QE methodology
Autorzy:
Dolah, R.
Miyagi, Z.
Tatebayashi, K.
Powiązania:
https://bibliotekanauki.pl/articles/406750.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Quality Engineering
Taguchi method
design of experiments
DOE
T-peel test
product robustness
Opis:
As many research focused on robustness methodology, this paper discuss on how to implement these methodology concept from the management perspective. Guidelines and appropriate strategies are discussed on Quality Engineering (QE) implementation in an organization and experimentation. Firstly, the experience of a company implementing QE is presented. Secondly, the practical data of a laboratory experiment is discussed in order to relate between the experimental result and requirement in industry. The QE implementation is explained on the strategies used in tackling organization problems. Optimization of peel adhesion strength test is carried out to propose the feasibility of experimental design tools. QE methodology between the practical case and company's case study is compared. Finally, through the QE implementation in organization and method applied in experimental design, a framework is proposed for QE methodology. QE implementation is presented from two sources, from a company and practical case study point of view. It helps a researcher or engineer applies the management strategy and engineering tool to ensure product robustness.
Źródło:
Management and Production Engineering Review; 2012, 3, 4; 26-34
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 33

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