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Structural methacrylates / Sally Sinai in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 17, N° 9 (09/2010)
[article]
Titre : Structural methacrylates : The development of methacrylate technology for structural adhesives has enabled manufacturing improvements in many markets Type de document : texte imprimé Auteurs : Sally Sinai, Auteur Année de publication : 2010 Article en page(s) : p. 32-35 Langues : Américain (ame) Catégories : Adhésifs structuraux
Méthacrylate de méthyleIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Methacrylate adhesives offer an alternative to many traditional methods of joining two substrates. Due to the unique combination of polymers and impact modifiers, they possess the high strength of an epoxy combined with the flexibility of a polyurethane. The free radical chain-polymerization cure of methacrylate adhesives means they cure at room temperature and are not as susceptible to off-ratio mixing.
Many thermoplastics, composites and metals can be bonded with Plexus adhesives with little or no surface preparation. The bonding of dissimilar materials can be achieved successfully, and the use of an adhesive over other methods can reduce labor costs and increase productivity while providing a strong, flexible, tough, durable bond that can withstand fatigue, vibration, and impact.
The combination of all these factors, combined with good rheology, thixotropic properties, ease of use, recyclability, and lack of VOCs and solvents, results in a range of structural methacrylate adhesives that can be used to bond many substrates in a variety of different industries.En ligne : http://www.adhesivesmag.com/Articles/Feature_Article/BNP_GUID_9-5-2006_A_1000000 [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9927
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 17, N° 9 (09/2010) . - p. 32-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012455 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Structurally green : Structural adhesives can reduce emissions and assist in the recycling of plastics to minimize waste and VOCs Type de document : texte imprimé Auteurs : Sally Sinai, Auteur Année de publication : 2012 Article en page(s) : p. 20-22 Langues : Américain (ame) Catégories : Adhésifs structuraux
Assemblages collés
Composés organiques volatils
Epoxydes
Méthacrylate de méthyleIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Because recent trends in the marketplace emphasize green, manufacturers are looking for new and innovative ways to reduce emissions and volatile organic compounds (VOCs). This is particularly true in the automotive industry, where there is a real drive to design lighter cars that are less thirsty for fuel and consequently produce fewer emissions.
Alternative materials such as plastics, fiberglass and aluminum are being used more often. Since 1990, some reports suggest that the replacement of automotive steel has avoided burning more than 22.2 billion gallons of fuel globally. In addition, it has been estimated that the automotive industry’s ongoing move to lighter materials will cut the world’s greenhouse gas emissions by 20%.
In order to facilitate this shift toward lighter materials, designers have had to identify an appropriate method of joining new and dissimilar materials. The joining method must be fast and easy to achieve, and the resultant joints need to be strong and durable (at least on a par with the performance of welding and other traditional methods of joining steel components). This is where structural adhesives have helped to make a big difference.En ligne : http://www.adhesivesmag.com/articles/90585-structurally-green Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19155
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 19, N° 2 (02/2012) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13670 - Périodique Bibliothèque principale Documentaires Disponible Syntheses of novel photosensitive polysiloxanes and their effects on properties of UV-cured epoxy methacrylate coatings / Chunyi Tang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 5 (09/2010)
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Titre : Syntheses of novel photosensitive polysiloxanes and their effects on properties of UV-cured epoxy methacrylate coatings Type de document : texte imprimé Auteurs : Chunyi Tang, Auteur ; Weiqu Liu, Auteur Année de publication : 2010 Article en page(s) : p. 651-658 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bisphénol A
Epoxydes
Méthacrylate de méthyle
Revêtements -- Séchage sous rayonnement ultraviolet
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).Index. décimale : 667.9 Revêtements et enduits Résumé : Two UV-curable polysiloxanes—side methacryloxy group polysiloxanes (MAPS) —were successfully synthesized through a two-step reaction. Two series of various percentages of these synthesized MAPS were then cured with bisphenol-A epoxy methacrylate (BEMA) via UV radiation to obtain cured coatings. We found that the additive MAPS improved the thermal stability of the cured coatings. It not only reduced the surface energy of the coatings, but also significantly affected the other properties, including gloss, flexibility, and water resistance. Compared to the phase separation between BEMA and MAPS-1 with lower volume of methacryloxy groups, MAPS-2 with higher volume of methacryloxy groups dispersed uniformly in BEMA, thereby provding good performances for such coating materials. DOI : 10.1007/s11998-010-9247-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9247-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9919
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 5 (09/2010) . - p. 651-658[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012448 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of a novel fluorescent coloured copolymer based on 4-butylthio-1,8-naphthalimide / Bahareh Safabakhsh in COLORATION TECHNOLOGY, Vol. 128, N° 3 (2012)
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Titre : Synthesis of a novel fluorescent coloured copolymer based on 4-butylthio-1,8-naphthalimide Type de document : texte imprimé Auteurs : Bahareh Safabakhsh, Auteur ; Alireza Khosravi, Auteur ; Kamaladin Gharanjig, Auteur ; Elaheh Kowsari, Auteur ; Manouchehr Khorassani, Auteur ; Sina Tafaghodi, Auteur Année de publication : 2012 Article en page(s) : p. 218-222 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Synthèse
Copolymères -- Synthèse
Fluorescence
Fluoropolymères
Méthacrylate de méthyle
SolvatochromismeIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A novel fluorescent coloured copolymer based on naphthalimide was prepared. Acenaphthene was brominated and oxidised to prepare 4-bromo-1,8-naphthalic anhydride and further reacted with butanethiol, 2-aminoethanol and acryloyl chloride, in order to obtain a new polymerisable fluorescent dye. The synthesised dyes were characterised by differential scanning calorimetry, absorption spectroscopy (Fourier Transform–infrared, proton and carbon nuclear magnetic resonance, ultraviolet–visible spectroscopy) and fluorimetry. Molar extinction coefficients and wavelength maxima were obtained by examining the dye solution in ethanol. The solvatochromic effects of the prepared dyes have also been investigated. Finally, the dye was copolymerised with methyl methacrylate and an intrinsically coloured copolymer was obtained. The photophysical characteristics of the obtained copolymer have also been considered. It is assumed that 99% of the copolymerised dye is chemically bonded to polymer chains. The fluorescent characteristics of the copolymer in the solid state were determined by fluorometer and it was found that it has relatively high fluorescent intensity. The physical properties of the synthesised copolymer have been evaluated by differential scanning calorimetry and gel permeation chromatography. Note de contenu : - EXPERIMENTAL : Materials - Instrumentation - Synthesis of intermediates, monomer and copolymer
- RESULTS AND DISCUSSION : Synthesis of polymerisable dye - Spectrophotometric properties of dyes - Copolymerisation of the synthesised dye with MMADOI : 10.1111/j.1478-4408.2012.00366.x Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15124
in COLORATION TECHNOLOGY > Vol. 128, N° 3 (2012) . - p. 218-222[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13933 - Périodique Bibliothèque principale Documentaires Disponible Synthesis properties of a cationic acrylic resin leather finish with a core-shell structure / Sui Zhihui in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 3 (05-06/2012)
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Titre : Synthesis properties of a cationic acrylic resin leather finish with a core-shell structure Type de document : texte imprimé Auteurs : Sui Zhihui, Auteur ; Zhao Xin, Auteur ; Song Xumei, Auteur ; Qiang Xihuai, Auteur Année de publication : 2012 Article en page(s) : p. 94-99 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylate de butyle
Amorceurs (chimie)
Analyse thermique
Copolymères en émulsion
Copolymérisation
Fourier, Spectroscopie infrarouge à transformée de
Méthacrylate de méthyle
Microscopie électronique en transmission
Persulfate de potassium
Polyacrylates
Polymères cationiques
Polymérisation en émulsionIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A cationic polyacrylate emulsion (CPAE) with a core-shell structure was prepared by seed polymerization. The emulsion copolymerization was carried out with the core monomoers of butyl acrylate (BA) and methyl methacrylate (MMA), the shell monomers of BA, MMA, and a home-made cationic monomer with the initiator potassium persulfate. The structure of CPAE was characterized. No 'C=C' double bond was detected in the structure of CPAE by FT-IR and 1H-NMR spectra, indicating that the polymerization reaction was complete. DSC curves showed that there were two glass transition temperature in the structure of CPAE, indicating that the emulsion particle featured a core-shell structure. The core-shell structure of CPAE was also confirmed by TEM observation. Many improvements to the coating properties emerged when CPAE was used as a leather finishing agent. The result leathers has uniform and clean grain and comfortable handle. The coating had strong adhesion and its resistance to wet and dry rub fastness was up to grade 4.5. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Apparatus - Synthesis methods - Examination of CPAE
- FINISHING APPLICATION TEST
- RESULTS AND DISCUSSION : FT-IR spectrum analysis - H-NMR analysis - DSC analysis - TEM analysis - ? potential measurement results
- APPLICATION RESULTS OF FINISHING AGENTEn ligne : https://drive.google.com/file/d/1lPGTB2qsaGP2-9FH612VDRzStRMjKozo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15255
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 3 (05-06/2012) . - p. 94-99[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13973 - Périodique Bibliothèque principale Documentaires Disponible The correlation between the comonomer ratios of vinyl polymer tannages and their application properties / Jianzhong Ma in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 2 (03-04/2002)
PermalinkViscosity reduction via monomer selection in solvent-borne high-solids styrene/acrylic coating resins / Charles A. Zezza in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 856 (05/1996)
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