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Preparation and characterisation of acrylic polymer latex with green surfactants / Lijun Chen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4608 (05/2015)
[article]
Titre : Preparation and characterisation of acrylic polymer latex with green surfactants Type de document : texte imprimé Auteurs : Lijun Chen, Auteur ; Zhengrong Fu, Auteur ; Zhongbin Bao, Auteur ; Wen Li, Auteur Année de publication : 2015 Article en page(s) : p. 18-20 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylate de butyle
Biosurfactants
Copolymérisation
Emulsifiants
Haut extrait sec
Méthacrylate de méthyle
Polymérisation en émulsion
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The acrylic polymer latex can be prepared via semi-continuous seeded emulsion polymerisation of BA and MMA in a water phase initiated with KPS when nonylphenol ethoxylates and sodium dodecyl-benzenesulfonate are replaced with APG and SFAMES, respectively. Both APG and SFAMES are not derived from petroleum. The structure of the acrylic polymer latex is confirmed with an FT1R spectrum. The uni modal distribution of particle size also confirms that the acrylic polymer latex has been prepared successfully. The optimum recipe of preparing the acrylic polymer latex has been obtained. Note de contenu : - EXPERIMENTAL : Materials - Preparation of acrylic polymer latex via semi-continuous seeded emulsion polymerisation - Characterisations
- RESULTS AND DISCUSSION : Characterisation of latex and its film - Determination of amount of monomers - Influence of amount of emulsifier - Amount of initiatorEn ligne : https://drive.google.com/file/d/1D-OhXRsdOsNLALpd4ttC3HRGh6oCNPIA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24042
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 205, N° 4608 (05/2015) . - p. 18-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17211 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterisation of fluorinated cationic acrylic latex / Wen Li in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4606 (03/2015)
[article]
Titre : Preparation and characterisation of fluorinated cationic acrylic latex Type de document : texte imprimé Auteurs : Wen Li, Auteur ; Zhongbin Bao, Auteur ; Zhengrong Fu, Auteur ; Lijun Chen, Auteur Année de publication : 2015 Article en page(s) : p. 36-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Copolymère acrylique fluoré
Polyacrylate de butyle
Polymères cationiques
Polymérisation en émulsion
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Revêtements en bâtiment:Peinture en bâtiment
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The fluorinated cationic acrylic latex was prepared successfully via semi-continuous seeded emulsion polymerisation of butyl acrylate, methyl methacrylate and hexafluorobutylmethacrylate in water phase initiated with 2,2'azobis (2. methyl propion amidine)dihydrochloride and emulsified with the aid of mixed surfactants of cetyltrimethyl ammonium bromide and polyethylene glocolmono-nonylphenylether. The structure of the resultant latex is confirmed by Fourier transform infrared spectroscopy spectrum and differentiel scanning calorimetry. Facture, which have an effect on the emulsion polymerisation and properties of latex, are investigated in détail. The conversion of mixed monomers is high and the coagulation percentage is less when the reaultant latex is prepered under the folIowing condition : the amount of emulsifier is 3% ; the amount of initiator is 0.8% : the content of the fluorinated monomer is 4%. In this case, the average particle size of latex is smallest. ln addition, in comparison with the latex prepared without the fluorinated monomers, the hydrophobicity of the resultant latex film is clearly improved. Note de contenu : - EXPERIMENTAL : Materials - Preparation of cationic fluorinated acrylate latex - Characterisation
- RESULTS AND DISCUSSION : FTIR and DSC curve of film - Influence of amount of initiator - Effect of amount of HFMA - Evolution of particle size and polymerisation with increased amount of emulsifierEn ligne : https://drive.google.com/file/d/1YqqdvdMHdkGbbP2p0oMD1F0QrDo-YFMW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23507
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Code-barres Cote Support Localisation Section Disponibilité 17051 - Périodique Bibliothèque principale Documentaires Disponible Research progress of radical initiator used in emulsion polymerisation / Cuifeng Zhang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4621 (06/2016)
[article]
Titre : Research progress of radical initiator used in emulsion polymerisation Type de document : texte imprimé Auteurs : Cuifeng Zhang, Auteur ; Tingting Xu, Auteur ; Zhongbin Bao, Auteur ; Lijun Chen, Auteur Année de publication : 2016 Article en page(s) : p. 22-23 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amorceurs (chimie)
Colles:Adhésifs
Polyaddition
polymères vinyliques
Polymérisation en émulsionIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : At present, polymer materials have been widely used in the chemical industry, architecture, medicine, food, agriculture and other industries. The synthesis of new macromolecule material and its theoretical research has been an important topic in polymer science'. Radical polymerisation is an effective method for mass production of a variety of vinyl polymers. About 70% or more of these polymers is produced by the radical polymerisation. Chain initiation is one of the important factors in the radical polymerisation, which will directly affect the quality of the product, the rate of polymerisation etc. The radical polymerisation initiation system can be summarised as peroxide initiator, azo initiator and redox initiator, difunctional and multifunctional initiators and macromolecular initiator. This paper focuses on the research progress of the radical initiators in recent years including several common water-soluble initiators, such as inorganic peroxide initiators, watersoluble azo initiators, redox initiators and composite initiators. Note de contenu : - Inorganic peroxide initiator
- Water soluble azo initiator
- Redox initiator
- Composite initiatorEn ligne : https://drive.google.com/file/d/1qqjWbdTEQuEqPJnL3ub9naBJkq9Bpz5q/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26953
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 206, N° 4621 (06/2016) . - p. 22-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18333 - Périodique Bibliothèque principale Documentaires Disponible Research progress of waterborne plastic coatings / Tingting Xu in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4620 (05/2016)
[article]
Titre : Research progress of waterborne plastic coatings Type de document : texte imprimé Auteurs : Tingting Xu, Auteur ; Cuifeng Zhang, Auteur ; Zhongbin Bao, Auteur ; Lijun Chen, Auteur Année de publication : 2016 Article en page(s) : p. 15-18 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epoxydes
Matières plastiques -- Revêtement:Matières plastiques -- Peinture
Polyacrylates
Polyuréthanes
Revêtement monocomposant:Peinture monocomposant
Revêtements bi-composant:Peinture bi-composant
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : How some properties of plastics, such as wear resistance and ageing resistance are weak so coatings are used to improve the applicability of the plastics. The advancement of waterborne coatings in plastics is reviewed.
Plastic products have been more and more widely used and has become one of the indispensable important materials in many fields with the rapid development of the plastics industry. However, some properties of the plastics, such as wear resistance and ageing resistance are weak. Thus, coatings are used to improve the applicability of the plastics in all aspects, which are coated on the surface. At present, coatings, such as single-component thermoplastic acrylic coatings, two-component solvent polyvinyl chloride acrylate coatings, chlorinated polyolefin coatings and nitrocellulose coatings have been used to modify the plastic products.
However, some above used coatings belong to the solvant plastic coatings, which contain some organic solvents, such as benzene, alcohols and hydrocarbon or oxygen solvent in the process of production. The organic solvants are harmful to the environment and human body due to their initial formaldehyde, aromatic and all kinds of harmful volatile substances. Furthermore, some plastic products cannot resist the organic solvents". Thus, more and more attention has been paid to the waterborne plastic coatings, which are friendly to the environment. Waterborne coatings are based on water soluble resins or different types of dispersion resins. Usually, they are composed of different kinds of waterbased resins, pigments, extenders and additives. In this paper, the advancement of waterborne coatings in plastics is reviewed.Note de contenu : - Waterborne acrylate coatings
- Waterborne polyurethane coatings
- Single component waterborne polyurethane coatings
- Two-component waterborne coatings
- Waterborne epoxy resin coatingsEn ligne : https://drive.google.com/file/d/1n_F-8qn9DGoYiMVH8dAUtgs7UerM1rIZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26464
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Code-barres Cote Support Localisation Section Disponibilité 18149 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterisation of acrylate-dibutyl fumarat polymer emulsion / Tingting Xu in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4617 (02/2016)
[article]
Titre : Synthesis and characterisation of acrylate-dibutyl fumarat polymer emulsion Type de document : texte imprimé Auteurs : Tingting Xu, Auteur ; Zhongbin Bao, Auteur ; Cuifeng Zhang, Auteur ; Lijun Chen, Auteur Année de publication : 2016 Article en page(s) : p. 24-27 Note générale : Bibliogr. 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.
Angle de contact
Caractérisation
Copolymères -- Synthèse
Emulsifiants
Fluoropolymères
Fumarate de dibutyle
Humidité -- Absorption:Eau -- Absorption
Polymères en émulsion
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 : The fluorine-silicone modified acrylate-dibutyl fumarate emulsions were successfully prepared via semi-continuous seed emulsion polymerisation technology when MMA, DBF, VTES and HFMA were used to be the co-polymerised monomers and the mixture of SDBS and APG and KPS were used as the emulsifier and the initiator, respectively. The optimum recipe of preparing the emulsion is as follows : the amount of emulsifiers is 5% and the mass ratio of SDBS and APG is 1:4 ; the amount of initiator is 0.6% and the content of the fluorine monomer and silicon monomer is 6% and 8%, respectively. In comparison with the acrylate-dibutyl fumarate emulsion without fluorine monomer and silicon monomer, the thermal stability and the water resistance of the modified emulsion film are clearly improved. Note de contenu : - EXPERIMENTAL : Materials - Preparation of emulsion and its film - Characterisations
- RESULTS AND DISCUSSION : FTIR and DSC analyses of the film - Influence of amount of emulsifier on properties of emulsion - Influence of amount of initiator on conversion percentage and coagulation percentage - Contact angle and water absorption of film
- SCHEME : Synthesis pathway of modified acrylic latex
- TABLES : 1. Basic recipe and conditions for preparing emulsion - 2. Influence of amount of emulsifier on properties of emulsion - 3. Influence of different mass ratio of emulsifier on properties of emulsion - 4. Effect of different mass ratios of monomers on properties of emulsion
- FIGURES : 1. FTIR of fim - 2. DSC analysis of film - 3. Influence of initiator on conversion percentage and coagulation percentage - 4. Influence of amount of fluorine and silicon monomer on water absorption - 5. Contact angle of films - 6. TGA of filmEn ligne : https://drive.google.com/file/d/1_sqT9QrsIzmCtJRZ2fe73kBiuYJhhoaH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25570
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Code-barres Cote Support Localisation Section Disponibilité 17844 - Périodique Bibliothèque principale Documentaires Disponible