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Synthesis of fluorinated polyacrylic acrylate oligomer for the UV-curable coatings / Jianbing Wu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
[article]
Titre : Synthesis of fluorinated polyacrylic acrylate oligomer for the UV-curable coatings Type de document : texte imprimé Auteurs : Jianbing Wu, Auteur ; Ruofei Zhang, Auteur ; Ping Li, Auteur ; Guozhang Ma, Auteur ; Caiying Hou, Auteur ; Hui Zhang, Auteur Année de publication : 2019 Article en page(s) : p. 681-688 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact
Copolymère acrylate polyacrylique fluoré
Essais (technologie)
Fourier, Spectroscopie infrarouge à transformée de
Hydrophobie
Oléophobie
Oligomères
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Stabilité thermique
Surfaces (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : A series of novel fluorinated polyacrylic acrylate oligomers with different fluorine contents were successfully prepared by acid–epoxy reaction between acrylic acid and a glycidyl methacrylate (GMA)-functional acrylic copolymer, which was presynthesized by traditional free radical polymerization in solvent with ethyl methacrylate, n-butyl acrylate, dodecafluoroheptyl methacrylate, and GMA. The UV-curable coatings were prepared with various amounts of the obtained fluorinated polyacrylic acrylate oligomer. The influences of fluorine content on the properties of UV-curable films were investigated by the tests of hydrophobicity, oleophobicity, thermal stability, water absorption, hardness, and chemical resistance. The results showed that the water contact angle of cured films increased from 78.5° to 104.5°, n-hexadecane contact angles increased from 12.3° to 43.4°, the water absorption decreased from 1.27% to 0.63%, while the fluorine content of the cured films increased from 0 to 5.7 wt%. In addition, thermal stability and chemical resistance of the curable films containing fluorinated oligomer were also clearly improved. Note de contenu : - EXPERIMENTAL : Materials - Preparation of fluorinated polyacrylic acrylate oligomer (FPAO) - Preparation of UV-curable coatings - Instrument and characterization
- RESULTS AND DISCUSSION : Synthesis and characterization of the FPAO - Effect of the content of FPAO on the properties of UV filmsDOI : 10.1007/s11998-018-0145-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0145-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32581
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 681-688[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20953 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of fully bio-based branched unsaturated polyester oligomers and UV curing coatings / Caixing Feng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 5 (09/2023)
[article]
Titre : Synthesis of fully bio-based branched unsaturated polyester oligomers and UV curing coatings Type de document : texte imprimé Auteurs : Caixing Feng, Auteur ; Haihong Ma, Auteur ; Fengmei Ren, Auteur ; Zhengfa Zhou, Auteur ; Weibing Xu, Auteur Année de publication : 2023 Article en page(s) : p. 1747-1758 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biopolymères
Caractérisation
Formulation (Génie chimique)
Oligomères
Polyesters insaturésLes résines de polyesters insaturés (UP) sont obtenues par polycondensation
d’un ou de plusieurs diacides avec un ou plusieurs glycols, l’un, au moins, des constituants contenant une double liaison éthylénique susceptible de réagir ultérieurement sur un composé vinylique, acrylique ou allylique.
Par le terme résine polyester, on désigne en fait la dissolution du prépolymère polyester insaturé dans un solvant copolymérisable, le plus utilisé étant le styrène. C’est sous cette forme liquide que les résines polyesters sont livrées aux transformateurs.
Après addition de différents adjuvants, charges et renforts, divers procédés de transformation provoquent, sous l’action d’un système catalytique approprié, la copolymérisation finale de la résine en un objet thermodurcissable.
Les polyesters insaturés sont d’un usage relativement ancien (1950), essentiellement
dans le bâtiment (moulage au contact). Ils ont connu un renouveau important à partir de 1980, en particulier au niveau des formulations et de la fiabilité des procédés grâce au développement de technologies industrielles de moulage par injection et par compression dans l’industrie automobile.
Polymères -- Synthèse
Polymères ramifiés
Revêtements -- Propriétés mécaniques
Revêtements -- Propriétés thermiques
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Rugosité
Surfaces -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : In this paper, fully bio-based branched unsaturated polyester (BUPE) oligomers were synthesized by one-step solvent-free polycondensation using itaconic acid, isosorbide and glycerol as feedstocks. The branched structure was confirmed by Fourier-transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance spectroscopy (1H NMR). The effect of the branched structure on the properties of BUPE UV curing coatings was investigated. The results showed that the introduction of a glycerol branched structure was favorable for UV curing. The BUPE UV curing coatings based on the glycerol branched structure showed higher gel content and crosslink density, which enhanced the hardness, solvent resistance and mechanical properties of the coatings. In addition, the BUPE UV curing coatings possessed extremely low surface roughness, excellent heat resistance and light transmission properties. Note de contenu : - EXPERIMENT : Materials - Synthesis of branched unsaturated polyester (BUPE) oligomers - Preparation of BUPE UV curing coatings - Characterization
- RESULTS AND DISCUSSION : Characterization of BUPE oligomers - Gel content and swelling ratio analysis - Mechanical properties analysis - Surface micromorphology and roughness analysis - Thermal property analysis - Coating performance analysis - Transparency analysis
- Table 1 : Synthesis formula of BUPE oligomers
- Table 2 : Data of BUPE oligomers obtained from 1H NMR, GPC and DSC
- Table 3 : Data sheet of mechanical properties of BUPE UV curing films
- Table 4 : TGA data
- Table 5 : Performances of BUPE UV curing coatings and filmsDOI : https://doi.org/10.1007/s11998-023-00778-3 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00778-3.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39985
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 5 (09/2023) . - p. 1747-1758[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24242 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of UV-curable polyesters with lateral double bonds by ring-opening polymerization and their properties / Yumei Zhou in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 6 (11/2021)
[article]
Titre : Synthesis of UV-curable polyesters with lateral double bonds by ring-opening polymerization and their properties Type de document : texte imprimé Auteurs : Yumei Zhou, Auteur ; Shujie Ming, Auteur ; Liuyan Tang, Auteur ; Jinqing Qu, Auteur Année de publication : 2021 Article en page(s) : p. 1591-1601 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anhydrides
Caractérisation
Catalyseurs
Copolymère vinyle ester
Copolymérisation
Epoxydes
Monomères
Oligomères
Photoréticulation
Polyesters
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Stabilité thermique
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : UV-curable coatings have been receiving more and more attention for their high performance and environmentally friendly advantages, which meet the “5 E” requirements of coating development. Vinyl oligomer is the main factor affecting the performance of UV-curable coating, but it is difficult to meet the requirements of high-end UV curing technology due to its high viscosity, low vinyl functionality, and high cost. Herein, polyesters with lateral double bonds were prepared by ring-opening polymerization of acid anhydride and glycidyl methacrylate. The epoxy compound without vinyl groups was used to participate in the polymerization reaction to adjust the viscosity and vinyl functionality of the resin. Furthermore, the molecular structure and molecular weight of the polyesters were characterized by FTIR, 1H NMR, and GPC. The effects of the categories and proportions of acid anhydride and glycidyl ether on the viscosity and hardness of the coating films were studied. The results indicated that the use of acid anhydrides containing phenyl rigid groups could significantly increase the hardness of the paint film, and the long-chain tertiary glycidyl carbonate (E10P) had the best viscosity reduction effect. When the molar ratio of acid anhydride, GMA and E10P was 4:1:3, the viscosity of the prepared vinyl polyester was low to 2755 mPa·s. In this case, the hardness of the paint film was as high as H, and it also exhibited excellent water resistance and alcohol resistance. Note de contenu : - EXPERIMENTAL : Materials - Preparation of UV-curable polyesters with lateral double bonds - Characterization
- RESULTS AND DISCUSSION : Influencing factors of polyester performances - Structural characterization of the polyesters - Analysis of photocuring behavior of the polyesters - Thermal stability of the polyesters - Film properties of the polyesters
- Table 1 : Effect of glycidyl methacrylate content on the properties of the polyesters
- Table 2 : Effect of anhydride type on the properties of the polyesters
- Table 3 : Effect of different epoxy monomers on the properties of the polyesters
- Table 4 : Copolymerization of PA and epoxides
- Table 5 : Selection of different ring-opening catalysts
- Table 6 : GPC results of the polyesters
- Table 7 : The film properties of the polyesterDOI : https://doi.org/10.1007/s11998-021-00513-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00513-w.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36818
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 6 (11/2021) . - p. 1591-1601[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23146 - Périodique Bibliothèque principale Documentaires Disponible Technology for the production of high-performance textile-grade PA 6 in CHEMICAL FIBERS INTERNATIONAL, (10/2018)
[article]
Titre : Technology for the production of high-performance textile-grade PA 6 Type de document : texte imprimé Année de publication : 2018 Article en page(s) : p. 30-32 Langues : Anglais (eng) Catégories : Dimères
Extraction (chimie)
Fibres textiles synthétiques
Oligomères
Polyamide 6
Polymères -- Détérioration
Polymères -- RecyclageIndex. décimale : 677.4 Textiles artificiels Résumé : According to current forecasts, the expected worldwide consumption of polyamide 6 (PA 6) in 2020 will be 5.5 million metric tons with a stable annual growth of 2.5-3.0%. More than 65 % of it will be fiber-grade polymers. The over-proportionally strong growth of production capacity (expected annual growth of 4.0%) exceeds the expected growth of consumption and causes pressure on the polyamide producers. The endeavors to optimize production efficiency and to reduce production costs are rising. The biggest cost factor in the production of PA 6 is raw material cost (ε-caprolactam). Thus, beside top product quality, minimum raw material consumption is most important for producers. This directs the focus on handling the internal recirculation stream containing caprolactam-monomer and oligomers. The effective and professional handling of this stream influences both product quality and profitability of the plant. Note de contenu : - Extraction as core process step
- Chemistry of the PA 6 equilibrium-reaction
- Extract treatment and recycling
- OMDP technology
- Fig. 1 : PA 6 textile-grade production - main process steps
- Fig. 2 : Cyclic dimer build-up in polymerization reactor dependent on residence time and temperature
- Fig. 3 : OMDP technology for production of PA 6 textile-grade chips
- Fig. 4 : Total cost of OMDP technology compared to de-polymerization technology. Calculated cost-/ton of PA 6 production for 600 tons/day plantEn ligne : https://drive.google.com/file/d/1xXdQf99ohHl2DrmwxeCRpedP_AKip3Dt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31243
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Code-barres Cote Support Localisation Section Disponibilité 20259 - Périodique Bibliothèque principale Documentaires Disponible Tg region breadth is critical to UV-Curable PSA performance / Craig Glotfelter in ADHESIVES AGE, Vol. 40, N° 13 (12/1997)
[article]
Titre : Tg region breadth is critical to UV-Curable PSA performance Type de document : texte imprimé Auteurs : Craig Glotfelter, Auteur Année de publication : 1997 Article en page(s) : p. 29-31 Langues : Américain (ame) Catégories : Adhésifs -- Propriétés mécaniques
Adhésifs -- Séchage sous rayonnement ultraviolet
Adhésifs sensibles à la pression
Copolymère époxy acrylate
Copolymère uréthane acrylate
Essais (technologie)
Formulation (Génie chimique)
Oligomères
Pelage
Résistance au cisaillementIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Based on the study results, the following conclusions can be made.
- The Tg breadth of oligomers - rather than absolute Tg - is a factor in UV PSA performance.
- An oligomer with narrow Tg breadth generally performs better.
- Oligomer chemical structure also affects PSA performance, with amorphous materials performing better than crystalline materials.
- UV dose affects peel and shear PSA performance.Note de contenu : - Advantages of UV curing PSAs
- PSA components
- Curing a PSA
- Testing
- Oligomers and their role in PSA performance
- UV doseEn ligne : https://drive.google.com/file/d/1-16K0uBW2dg37DFmX9AREbXMDE3o0Y9x/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20482
in ADHESIVES AGE > Vol. 40, N° 13 (12/1997) . - p. 29-31[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001083 - Périodique Bibliothèque principale Documentaires Exclu du prêt The effect of thermal radical initiator derived from O-imino-isourea on thermal curing characteristics and properties of automotive clearcoats / Ji Won Hwang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 1 (01/2015)
PermalinkThe effect of UV-curable formulations and matting agents on lacquer properties / V. Petry in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B2 (06/2004)
PermalinkPermalinkThe influence of hydrophobic protection on building exterior claddings / Carlos Esteves in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
PermalinkThe preparation of hybrid trimer by cyclo-oligomerization of TDI and HDI and its curing process with polyols to form elastic PU coating / Qian Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 6 (11/2017)
PermalinkThe relationship between the structure of hyper-branched polymer and its effect on high exhaust chrome in reduced chrome tanning / Yao Qi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 5 (05/2017)
PermalinkThe right dose for the right cure / Xavier Drujon in EUROPEAN COATINGS JOURNAL (ECJ), N° 5 (05/2020)
PermalinkThe right solution ? / Deborah Smith in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4499 (04/2006)
PermalinkToward solventless liquid coatings / Frank N. Jones in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 852 (01/1996)
PermalinkUn TP de chimie organique au CNAM de Lyon / Thierry Hamaide in L'ACTUALITE CHIMIQUE, N° 10 (10/1999)
PermalinkPermalinkUltraviolet and thermostable non-isocyanate polyurethane coatings / O. Figovsky in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B1 (03/2005)
PermalinkUV-coating formulation in a new light / David K. Hood in EUROPEAN COATINGS JOURNAL (ECJ), N° 1 (01/2013)
PermalinkUV-curable behavior of phosphorus- and nitrogen-based reactive diluent for epoxy acrylate oligomer used for flame-retardant wood coating / Sachin U. Chambhare in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)
PermalinkUV curable monomers and oligomers in PSA applications / Craig Glotfelter in ADHESIVES AGE, Vol. 40, N° 3 (03/1997)
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