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Titre : Greening floor coatings : Water-based coatings that meet low emissions and enhanced indoor air quality standards Type de document : texte imprimé Auteurs : Derrick R. Twene, Auteur ; Roel Swaans, Auteur ; Bas Tuijtelaars, Auteur ; Dick Coogan, Auteur ; Ronald Tennebroek, Auteur ; Mourad Aabich, Auteur ; Patricia Bell, Auteur Année de publication : 2014 Article en page(s) : p. 16-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Oxydation
Polyuréthanes
Résistance à l'abrasion
Résistance aux taches
Résistance chimique
Réticulation (polymérisation)
Sols -- Revêtements protecteurs
Vernis -- Propriétés mécaniques
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Directives and regulations related to the use, amount and emissions of chemical compounds and substances within the coating industry have increased in number and become more stringent. Their aim, broadly, is to improve the health and wellbeing of consumers and environment. But there is a mismatch between key directives and end-performance requirements for flooring applications, hindering progress towards compliant and future-proof end products. Note de contenu : - Clean air clean products
- Indoor air quality
- Water-based polyurethane synthesis and achieving amine-free dispersions
- Amine-free polyurethanes for floor applications
- Auto oxidative chemical crosslinkingEn ligne : https://drive.google.com/file/d/1Zf1mhryV4EoW2DHRNAnYg-mQrIVhL08b/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21012
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4 (04/2014) . - p. 16-21[article]Réservation
Réserver ce documentResin design for a sustainable future / Bas Tuijtelaars in EUROPEAN COATINGS JOURNAL (ECJ), N° 5 (05/2017)
[article]
Titre : Resin design for a sustainable future : Using fatty acid modified polyurethane dispersions in paints to combine excellent performance with a safer end product Type de document : texte imprimé Auteurs : Bas Tuijtelaars, Auteur ; Cor Koning, Auteur ; Bauke de Vries, Auteur ; Bert Hofkamp, Auteur ; Roel Swaans, Auteur ; Diane de Bruijne, Auteur ; Derrick Twene, Auteur Année de publication : 2017 Article en page(s) : p. 48-55 Note générale : Erratum Fig. 2 et 3 p. 55 - Bibliogr. Langues : Anglais (eng) Catégories : Composés organiques volatils
Diisocyanates
Liants
Polymères en émulsion
Polyuréthanes
Produits chimiques -- Toxicologie
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
TriéthylamineIndex. décimale : 667.9 Revêtements et enduits Résumé : Neutralising amines such as triethylamine are widely used in water-borne polyurethane dispersions where they stabilise the polymer particles. After application these toxic amines evaporate from the coating posing a risk to human health and the environment. Note de contenu : - Reducing environmental impact
- Optimising polyurethane dispersions
- Volatile amines beneficial to performance
- Toxic when drying
- Emission tests prove tea release
- Volatile organic amines are the main contributor to emissions
- New systems protect end user health
- Developing a resin with no health risks
- Tailored PU design improves resistance
- Environmentally friendly and high performance
- New non-toxic binders offer a sustainable future
- FIGURES : 1. Example of green standards and ecolabels - 2. Schematic formation of a polyurethane dispersion, using a tertiary amine as neutralising agent. The generated salt groups act as internal dispersants, stabilising the emulsions - 3. TEA labeling - 4. The results for the online monitoring of triethylamine (TEA) emissions in ambient air, originated from a 100 µm paint film based on a commercially available urethanised alkyd dispersion for DSM. The blue curve represents the TEA concentration in the air chamber over time = t. The red curve represents the cumulative amount of TEA emitted (in mg) - 5. Results of monitoring triethylamine (TEA) emissions in ambient air, originated from a 50 µm polyurethane film based on three commercially availagle urethanised alkyd dispersions and four corresponding commercial paints. The curves represent the collected TEA in the air chamber over time = t - 6. Calculated VOC content of a physically drying parquet lacquer based on a commercial polyurethane dispersion. Initial concentration of the co-solvents is much higher compared with the volatile amine. R values of measurements at 3, 7 and 28 days, according to AgBB emission testing on this lacquer. Triethylamine contributes to 80-90 % on the calculated R-value because of its low LCI value - 7. Water resistance and chemical rsistances of the four auto-oxidisable polyurethane dispersions listed in Table 2 according to DIN-68861-1 1B. The bars for chemical resistances represent an average of 5 different staining resistances (coffee, tea, ethanol, red wine and hand cream). Score : 0 = very poor, 5 = excellent
- TABLES : 1. Total VOC (g/l) according to ISO 11890-2 - 2. Comparison of dispersion characteristics and dry film properties of four auto-oxidisable polyurethane disprsions with different stabilising and neutralising compounds. Sores for smell : - means bad smell ; ++ means odourless - 3. Overview of the environmental advantages of the amine-free #4 based on an alternative acid and a permanent based, compared with the TEA-containing reference system #1 (see Table 2)En ligne : https://drive.google.com/file/d/1JWDWjgCJiQJCEZ1UuBPFFiZDP-rddP2W/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28557
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 5 (05/2017) . - p. 48-55[article]Réservation
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