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Titre : Fast performing seals : How key variables affect hot tack of emulsion polymers Type de document : texte imprimé Auteurs : Jorn Renema, Auteur ; Christof van Sluijs, Auteur ; Gerald Metselaar, Auteur ; André van Meer, Auteur Année de publication : 2014 Article en page(s) : p. 36-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésifs en phase aqueuse
Aliments -- Emballages
Analyse thermomécanique dynamique
Copolymère styrène acrylique
Copolymères en émulsion
Résistance à la fusion
SouduresIndex. décimale : 667.9 Revêtements et enduits Résumé : Hot tack is the melt strength of a heat seal immediately after sealing, while the polymer is still molten. This value is especially critical on high speed packaging lines. A range of waterborne styrene-acrylic core/shell dispersions was evaluated. Surprisingly, the parameters controlling hot tack and final bond strength are not the same. Note de contenu : - Advantages of waterborne adhesive formulations
- Experimental formulation variables
- Application and testing procedure
- Factors affecting hot tack and final bond strength
- DMTA analysis reveals changes in particle morphology
- The general nature of adhesive bonding
- Critical tack parameters summarisedEn ligne : https://drive.google.com/file/d/1axLZ0qJo3IDoR5LYXvTl4plAvp-I_DcF/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20395
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 2 (02/2014) . - p. 36-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15959 - Périodique Bibliothèque principale Documentaires Disponible Formulate a ceiling paint, save money for your client, make more profit / Vinod C. Malshe in PAINTINDIA, Vol. LXXIII, N° 7 (07/2023)
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Titre : Formulate a ceiling paint, save money for your client, make more profit Type de document : texte imprimé Auteurs : Vinod C. Malshe, Auteur Année de publication : 2023 Article en page(s) : p. 68-70 Langues : Anglais (eng) Catégories : Copolymère styrène acrylique
Coût -- Contrôle
Formulation (Génie chimique)
Plafonds
Polyacryliques
Revêtements:PeintureIndex. décimale : 667.6 Peintures Résumé : I retired as Prof of Paint Technology in Feb 2007 from UDCT Matunga Mumbai. I taught 14 batches from 1993 tilt 2007. As a measure of cost saving, I taught all my students to introduce a separate product in domestic sector architectural fin ishes and that is a different coating for ceiling. Except one student, no one entered paint manufacture though most of thenn are employed in paint industry in high positions. He too has not used this idea in spite of repeated reminders. Total number of students I taught was about 130 in 14 years due to very low intake in UDCT Paint Technology course. When I see the attendance in IPA and ISSPA conferences, I am amazed to know the number of young people involved in paint manufacture. The number of attendees was in excess of 1500 in both gatherings put together. I thought I will throw this idea for the entire paint industry for the benefit of the user and entrepreneur alike. Note de contenu : - Table 1 : Guideline formulation of acrylic or styrene acrylic washable distemper for ceiling paint
- Table 2 : Specifications : anucryl op 2023
- Table 3 : Properties of the product paintEn ligne : https://drive.google.com/file/d/1FbM40jkPQXX6OEquY2PWExTxg5CEtNFf/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40052
in PAINTINDIA > Vol. LXXIII, N° 7 (07/2023) . - p. 68-70[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24178 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : From waste to wall : Sustainable monomer improves performance of emulsion binders Type de document : texte imprimé Auteurs : Simon Austin, Auteur ; Bob Foster, Auteur ; Martin Conrads, Auteur Année de publication : 2017 Article en page(s) : p. 110-114 Langues : Anglais (eng) Catégories : Acrylates Les monomères acrylates sont un groupe d'esters faisant partie des vinyles, car renfermant une double liaison carbone-carbone et sont utilisés pour former des polyacryliques qui ont de multiples usages.
Chimie écologique
Copolymère acrylique acétate de vinyle
Copolymère styrène acrylique
Liants
Monomères
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : A new bio-based monomer, 2-octyl acrylate, has been derived from a waste product of the processing of castor oil in alkyd manufacture. It was substituted for n-butyl acrylate in three different types of emulsion. In all cases good polymerisation was obtained and paints showed improvements in some properties. Note de contenu : - Key requirements for 'greener' monomers
- New monomer is derived from waste bio-product
- Basic of the comparative study
- Satisfactory polymerisation readily obtained
- Paint test results summarised
- Satisfactory performance in styrene acrylic copolymer
- Monomer is also effective in pure acrylic copolymer
- Good performance obtained, reasonable cost predicted
- FIGURES : 1. Production of 2-octyl acrylate from a sustainable source - 2. Vinyl acetate/acrlic emulsion water uptake over time - 3. Styrene/acrylic water uptake over time - 4. Pure acrylic water uptake over time
- TABLES : 1. Vinyl acetate/acrylic - polymer and application properties - 2. Styrene/acrylic - polymer and application properties - 3. Pure acrylic - polymer and application propertiesEn ligne : https://drive.google.com/file/d/1dktf56Ql0iayAQ9sQ7CKN_QiVg06gnW2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27956
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2017) . - p. 110-114[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18717 - Périodique Bibliothèque principale Documentaires Disponible Improved facade coatings / Frank Ludwig in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 195, N° 4492 (09/2005)
[article]
Titre : Improved facade coatings Type de document : texte imprimé Auteurs : Frank Ludwig, Auteur Année de publication : 2005 Article en page(s) : p. 30-34 Langues : Anglais (eng) Catégories : Chlorure de polyvinyle
Copolymère styrène acrylique
Formulation (Génie chimique)
Humidité -- Absorption:Eau -- Absorption
Perméabilité
Polyacryliques
Polymères en émulsion
Résistance à l'humidité:Résistance à l'eau
Revêtements en bâtiment:Peinture en bâtiment
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).
Vapeur d'eauIndex. décimale : 667.9 Revêtements et enduits Résumé : The author explains how with the addition of special emulsified silicone resins has resulted in facade coatings with an improved water vapour permeability.
At all times people have been striven to protect their buildings well. In the past they mainly used silicate paints. Nowadays emulsion-based paints are commun for this purpose.
During the 60s acrylic polymer emulsions appeared on the market. They are the foundation of modern coatings and have replaced silicate paints in many applications. The advantages are faster drying, good adhesion on non mneral surfaces, better pigmentation and simple handling.
Standard formulations with 15-22 polymer emulsion (active matter content)lead to closed films with excellent weather resistance and very low water absorption.
Their water resistance compared to silicate paints was a great progress. But there are still damages at facades - and this exhibits the system's limits. Construction defects at the roof or missing protection of the foundation can cause the migration of water into the masonry.
In this situation the missing water vapour permeability becomes a great disadvantage. The coating will not allow water, to escape by diffusion. As a resukt blisters form and flaking can occur. Finally there is no more protection for the masonry and decomposition will take place.
To solve this problem, facade coatings with an improved water vapour permeability have been developed. These exhibit a low film tension, achieved through a special pigmentation and a lower polymer emulsion content. The coating offers a porous structure and therefore is diffusionable.
Unfortunately the water absorption increases and driving rain can cause moist masonry. To reach an additional water protection special emulsified silicone resins have to be added.
The resulting silicone resin emulsion paints conbine both properties, water resistance and water vapour permeability. This is the most effective protection for buildings.Note de contenu : - Influence of pigment volume concentration and polymer emulsion
- Evaluation of the water absorption
- Evaluation of the water vapour diffusion
- Evaluation of the dirt pick-up
- Influence of hydrophobing agents
- Early rain resistance and dosage of silicone resin emulsionsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27620
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 195, N° 4492 (09/2005) . - p. 30-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002408 - Périodique Bibliothèque principale Documentaires Disponible Influence of concentration of redox couple on freeze-thaw stability of styrene-acrylic copolymer latex / Chandrashekara R. Haramagatti in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
[article]
Titre : Influence of concentration of redox couple on freeze-thaw stability of styrene-acrylic copolymer latex Type de document : texte imprimé Auteurs : Chandrashekara R. Haramagatti, Auteur ; Subhadip Sikdar, Auteur ; Shruti Bhattacharya, Auteur Année de publication : 2016 Article en page(s) : p. 81-88 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère styrène acrylique
Latex
Oxydoréduction
Polymérisation en émulsion
Stabilité thermiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Styrene-acrylic copolymer latexes were synthesized by emulsion polymerization process using sodium formaldehyde sulphoxylate (SFS) and tert-butyl hydroperoxide (TBHP) as redox initiators. Approximately 100% conversion was achieved successfully at 50°C. The redox polymerization was carried out at varied dosages of redox concentration; the lowest dosage of 0.3% was sufficient to achieve ~100% conversion. The molecular weight of the polymer was decreased with an increase in redox concentration as expected. The properties such as viscosity, specific conductivity, particle size, molecular weight, and Tg (by differential scanning calorimetric and dynamic mechanical analysis) of the redox polymers are reported. The other important property of the latexes is their freeze–thaw (F–T) stability. Even though ~100% conversion was achieved at 0.3% redox initiator couple, it failed in F–T stability test. Latexes prepared above 0.5% redox initiator couple successfully pass the five F–T cycles. The effect of sulfate from SFS, and tertiary butyl from TBHP species on the stability of the latexes is discussed. The F–T stability of the emulsions is very crucial in the coatings industry, and this article brings some insight into the effect of concentration of redox species on the stability of emulsions. Moreover, low-temperature processes are always appreciated in terms of safety and energy savings. DOI : 10.1007/s11998-015-9727-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9727-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25378
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 81-88[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17819 - Périodique Bibliothèque principale Documentaires Disponible Influence of selection of surfactant system on application properties of polymeric dispersions / Lukasz Toma in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4634 (09/2017)
PermalinkInvestigating propensity of roller spatter during application of water-based architectural paints: effect of thickeners and volume solids / Sumit Chaudhary in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
PermalinkModification of styrene-acrylic emulsion by organic UV absorber in synergy with fluorine and silicon monomers for weatherable coatings / Wei Dong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
PermalinkNew generation of nonionic non-gelling surfactants for emulsion polymerisation / Gregory W. Drewno in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4627 (12/2016)
PermalinkNew, highly efficient associative thickeners in modern coating formulation / Carlos Feito in SURFACE COATINGS INTERNATIONAL, Vol. 104.1 (01-02/2021)
PermalinkNew waterborne coatings formulations with liquid EPDM dispersion / Gregory J. Brust in COATINGS TECH, Vol. 18, N° 8 (08/2021)
PermalinkNext generation styrene-acrylic binders / Thomas Bernhofer in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2018)
PermalinkPaint performance with eco-efficiency / Alann de Oliveira Piagentini Bragatto in EUROPEAN COATINGS JOURNAL (ECJ), (12/2023)
PermalinkA perfect match : High performance and potential for cost optimisation at the same time / Jan Pilger in SURFACE COATINGS INTERNATIONAL, Vol. 103.6 (11-12/2020)
PermalinkPermalinkPhotooxidative stability provided by condensed tannin additives in acrylic-based surface coatings on exterior exposure in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)
PermalinkPreparation and characterization of styrene-acrylic resin encapsulated C.I. Pigment Yellow 17 and charge control agent multicomponent particles / Yongyue Ding in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)
PermalinkPreparation and properties of antibacterial styrene-acrylic emulsion containing thiazole structure and its application as coating / Xiaopei Zhou in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
PermalinkSheen solutions / Philip Green in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 195, N° 4485 (02/2005)
PermalinkSilicone-based pH-adjuster : high efficiency, odourless and zero-VOC / Pedro Lazzarin Marani in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4624 (09/2016)
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