Effects of size, shape and floatage of Cu particles on the low infrared emissivity coatings

Yu, Hui; Xu, Guoyue; Shen, Xingmei; Yan, Xiaoxing; Shao, Chongyun; Hu, Chen

doi:10.1016/j.porgcoat.2009.07.002

Cited by 74 publications

(13 citation statements)

References 8 publications

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“…In fact the sample 5A20 is an opaque material and in this case, the emissivity was calculated as ε = 1 − ρ. In fact, some polymers are highly transparent materials in the infrared range, and the emissivity of such composites strongly depends on the properties of the metallic particles themselves and the contact or porosity between particles [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

“…In aeronautics some metallic particles are well-known to reduce the emissivity of materials preventing a excessively high heating [ 12 , 13 , 14 ]. Micronized aluminum and copper particles were used to decrease the emissivity of different polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Micronized aluminum and copper particles were used to decrease the emissivity of different polymers. The size and shape of these particles influence their efficiency in decreasing the emissivity [ 12 , 13 ]. Another property, called leafing, also has a huge effect.…”

Section: Introductionmentioning

confidence: 99%

“…Another property, called leafing, also has a huge effect. The leafing property corresponds to particles exhibiting a tendency to align themselves parallel to the surface [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Controlled Emissivity Coatings to Delay Ignition of Polyethylene

et al. 2015

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Semi-opaque to opaque films containing small amounts of various aluminium particles to decrease emissivity were easily prepared and coated onto low-density polyethylene (LDPE) sheets. The thermal-radiative properties (reflectivity, transmissivity and absorptivity) of the films were measured and related to the aluminum particles’ content, size and nature. Time-to-ignition of samples was assessed using a cone calorimeter at different heat flux values (35, 50 and 75 kW/m2). The coatings allowed significant ignition delay and, in some cases, changed the material behaviour from thermally thin to thick behaviour. These effects are related both to their emissivity and transmissivity. A lower emissivity, which decreases during the degradation, and a lower transmissivity are the key points to ensure an optimal reaction-to-fire.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Another property, called leafing, also has a huge effect. The leafing property corresponds to particles exhibiting a tendency to align themselves parallel to the surface [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Controlled Emissivity Coatings to Delay Ignition of Polyethylene

et al. 2015

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“…The paint is prepared with polyurethane based resin, pigments and additives. The effect of size, shape, concentration and types of pigments strongly influence the emissivity of coatings 3,4 . Binder resin characteristics are decisive for mechanical strength, corrosion resistance and anti-aging properties of the coating 5 .…”

Section: Introductionmentioning

confidence: 99%

Infrared Camouflage of the Warfighter’s Equipment through Enhanced Coating Technology

Almeida¹,

Martins²,

Gomes³

et al. 2013

49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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Infrared reflective coatings allow the operator to change the wave signature of military assets. The coatings have the capability to reflect electromagnetic waves in order to match the signature of the observed object to the signature of the corresponding environment, in the visible and near infrared spectra. Consequently, the object blends into the surroundings reducing its vulnerability. The reflectance profile and gloss level of the coating are defined in accordance to the specific environmental constraints, related to the reflectance of soils and vegetation. The paint developed in this study was made with a polyurethane-acrylic based resin, pigments and additives. The final configurations were tested and the reflectance matched those of foliage, sand and soil. The concepts and products developed in this study will be used in the ASTROS Artillery Saturation Rocket System produced by Avibras.

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Construction of Aniline Trimer Based Conjugated Polymers through Schiff Base Reaction and Their Use as Feedstock for Infrared Stealth Coatings

Zong

Wang

et al. 2022

Chin J Polym Sci

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Effects of size, shape and floatage of Cu particles on the low infrared emissivity coatings

Cited by 74 publications

References 8 publications

Controlled Emissivity Coatings to Delay Ignition of Polyethylene

Controlled Emissivity Coatings to Delay Ignition of Polyethylene

Infrared Camouflage of the Warfighter’s Equipment through Enhanced Coating Technology

Construction of Aniline Trimer Based Conjugated Polymers through Schiff Base Reaction and Their Use as Feedstock for Infrared Stealth Coatings

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