A new UV-curable powder coating based on a α,ω-unsaturated copolyamide 6/11/12

Mintsa, Marion N'Negue; Lecamp, Laurence; Bunel, Claude

doi:10.1016/j.eurpolymj.2009.03.023

Cited by 17 publications

(5 citation statements)

References 13 publications

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“…The ABS low thermal stability required a longer thermal curing period which caused decreased productivity or increased investment costs. 5,36,37 Adding PET into the ABS phase with its elongated PET fibrils parallel to the FD might act as reinforcing agents and so compensate the ABS phase stress relaxation resulting in better dimensional stability. Table 4 gives the gloss measurements.…”

Section: Thermal Propertiesmentioning

confidence: 99%

“…2,3 Its drawbacks, such as low-heat deflection temperature, residual stress in final parts, and dimensional stability at elevated temperatures that are required especially during a paint curing process create limitations for its applications in structural parts or cause higher processing costs due to long paint curing times at a relatively lower (80 C) paint curing temperature. [4][5][6][7] As a semi-crystalline thermoplastic polymer, polyethylene terephthalate (PET) is a common polyester resin with good physical and chemical properties for applications such as textiles, packaging, and films. In addition, glass fiber-filled PET compounds also find engineering applications.…”

Section: Introductionmentioning

confidence: 99%

“…ABS copolymer is the most commonly used engineering thermoplastic because it has a competitive price/performance ratio and there have been several attempts to improve ABS properties such as chemical resistance and mechanical properties. 1,12,13,19,21–35 However, ABS blend dimensional stability at higher temperatures which is an important parameter during the paint curing process to shorten curing time with increased productivity 4–6 has attracted little attention. Weakly-Bollin 7 described that ABS thermal stress relaxation starts around 75–80°C in which the residual stresses imposed during the injection molding release with the increased temperature and might cause the dimensional instability.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of acrylonitrile–butadiene–styrene/polyethylene terephthalate blends on dimensional stability, morphological, physical and mechanical properties and after aging at elevated temperature

Oral

Ersoy

Serhatlı

2018

Journal of Plastic Film & Sheeting

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A melt blending method was used to prepare acrylonitrile-butadiene-styrene terpolymer and polyethylene terephthalate blends to develop a new blend which can withstand higher temperatures required especially for automotive or home appliance paint curing processes. Blends were characterized by rheological, thermal and mechanical properties. Dimensional stability at 125 C was used to correlate with injection molded part shrinkage. The melt viscosity-composition curves for acrylonitrile-butadiene-styrene/ polyethylene terephthalate blends exhibited a trend like the rule of mixtures in which adding acrylonitrile-butadiene-styrene to polyethylene terephthalate improved the processability. Scanning electron microscopy examination revealed different morphologies depending on the composition such as dispersed, co-continuous and phase

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Section: Thermal Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of acrylonitrile–butadiene–styrene/polyethylene terephthalate blends on dimensional stability, morphological, physical and mechanical properties and after aging at elevated temperature

Oral

Ersoy

Serhatlı

2018

Journal of Plastic Film & Sheeting

View full text Add to dashboard Cite

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“…Research on UV-curable coatings has developed at an increasingly rapid rate. Various types of resins have emerged, including urethane acrylates (UAs), unsaturated polyester resins [ 12 , 13 , 14 , 15 ], (meth)acrylic resins [ 16 , 17 ], epoxy resins [ 18 , 19 ], polyamides [ 20 , 21 ], poly (limonene carbonates) and hyperbranched polymers [ 3 , 5 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic UV-Curable Powder Clear Coatings: Study on the Synthesis of New Crosslinking Agents Based on Raw Materials Derived from Renewable Sources

et al. 2021

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Methods for the synthesis of urethane acrylates used as new crosslinking agents for hydrophobic UV-curable powder clear coatings were developed. In the synthesis of urethane acrylates, isophorone diisocyanate, glycerin, xylitol, polyethylene glycol and polysiloxane KF-6000, as well as 2-hydroxyethyl acrylate or 2-hydroxyethyl methacrylate, were used. In order to increase the functionality of urethane acrylates, glycerin and xylitol derived from renewable sources were introduced. The chemical structure of the urethane acrylates was verified by IR spectroscopy. UV-curable powder clear coatings were obtained through a combination of urethane acrylates with unsaturated polyester resins. The thermal behavior and crosslinking density were examined using DMA. The obtained coatings were evaluated by performing the following tests: roughness, gloss, scratch resistance, hardness, adhesion to steel and water contact angle. As part of this research, high hydrophobicity and scratch resistance of UV-curable powder clear coatings were developed, which are a VOC-free and economically attractive alternative method for low thermal resistance surface protection, such as for composites, wood and wood-based materials.

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“…However, a major disadvantage of electrostatic coating technology is that the curing of the powder coating requires a significant amount of heat energy. For this reason, the future of these technologies will include the development of low temperature curable (LTC) powder coatings, whose application will enable energy saving solutions and also the ability to coat heat-sensitive substrates [8]. The second disadvantage is the lack of coating uniformity in Faraday-cage areas.…”

mentioning

confidence: 99%

Experimental Evaluation of Polyester and Epoxy–Polyester Powder Coatings in Aggressive Media

et al. 2018

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Protective coatings are the most widely used corrosion protection method for construction materials in different environmental conditions. They isolate metals from aggressive media, making the structure more durable. Today, alongside good anti-corrosive properties, coatings need to be safe for the environment and harmless to those who apply them. The high volatile organic compound (VOC) content in conventional solvent-borne coatings presents a huge ecological problem. A solution for indispensable solvent emission reduction is the application of powder coatings. This study evaluates the corrosion performance and surface morphology of polyester and epoxy-polyester powder coatings. Electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) measurement, salt spray chamber and humidity chamber testing followed by adhesion testing were used to investigate the protective properties of powder coatings. Scanning electron microscope (SEM) with energy-dispersive X-ray spectroscopy (EDX) was used to analyse the surface morphology and chemical composition, whereas the microstructure and coating uniformity were determined by optical microscope examination. The research revealed a negative influence of coating surface texture on coating thickness and consequently a lack of barrier and adhesion properties. The epoxy-polyester powder coating showed a better performance than the polyester coating. All tested coatings showed uniform structure.Coatings 2018, 8, 98 2 of 12 coating [1]. Today, thanks to the commercial success and wide application of powder coatings, extensive research is carried out in this field of study, in particular in the powder coating chemistry [5].Compared to liquid paints, powder coatings feature several advantages including the absence of volatile organic content, the reduction in coating material loss (up to 68%), the reduction of dust formation (from 40% to 84%) [1], high utilization rates, fast curing, the minimal health risks involved, and the elimination of hazardous wastes [7]. However, a major disadvantage of electrostatic coating technology is that the curing of the powder coating requires a significant amount of heat energy. For this reason, the future of these technologies will include the development of low temperature curable (LTC) powder coatings, whose application will enable energy saving solutions and also the ability to coat heat-sensitive substrates [8]. The second disadvantage is the lack of coating uniformity in Faraday-cage areas. Aside from several challenges needing improvement, powder coating is an environmentally-friendly coating process with good performance properties.There are numerous methods to evaluate the corrosion performance of powder coatings. Mafi et al. [5] investigated the protective behaviour of powder coatings in 3.5% w/w NaCl solution using electrochemical impedance spectroscopy (EIS) and open circuit potential (OCP) measurement, as well as differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMTA). Bhadu et al. [9] studied...

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A new UV-curable powder coating based on a α,ω-unsaturated copolyamide 6/11/12

Cited by 17 publications

References 13 publications

Effect of acrylonitrile–butadiene–styrene/polyethylene terephthalate blends on dimensional stability, morphological, physical and mechanical properties and after aging at elevated temperature

Effect of acrylonitrile–butadiene–styrene/polyethylene terephthalate blends on dimensional stability, morphological, physical and mechanical properties and after aging at elevated temperature

Hydrophobic UV-Curable Powder Clear Coatings: Study on the Synthesis of New Crosslinking Agents Based on Raw Materials Derived from Renewable Sources

Experimental Evaluation of Polyester and Epoxy–Polyester Powder Coatings in Aggressive Media

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