Inhibition of the Discoloration of Polyurethane Foam Caused by Ultraviolet Light

Valentine, C.; Craig, T.A.; Hager, S.L.

doi:10.1177/0021955x9302900605

Cited by 5 publications

(1 citation statement)

References 2 publications

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“…Above all, the FC samples were shifted towards higher frequency level as it being exposes to UV light, this phenomenon may be due to the increasing in pore size after 10000 hours exposures which resulting decreases of SAC value and band tend to shift to the higher frequency level. This phenomenon proved that deformation of foam can give impression that the product has physically degraded [20][21][22][23].…”

Section: Sound Absorption Of Uv Irradiation Exposures Of Fc and Pumentioning

confidence: 99%

Development and Characterization on sound acoustic at photo-induced polymer foam composited at prolonged ultra-violet exposure

Zaliran¹,

Rus²,

Kormin³

et al. 2018

IJET

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In this paper, polymer foam composites (FC) have been developed based on polyol mixed flexible crosslinker and fibre filler of Meranti Merah. 10 mm, 20 mm and 30 mm thickness of foam polymer and its composites have been use in this study. The percentage loading of wood fibre of 5%, 10%, 15% and 20% added with polymer foam is namely as polymer foam (PP) and its composites of PP5, PP10, PP15 and PP20. The sound absorption coefficient (α) and pore structure of the foam samples have been measure by using Impedance Tube test and Scanning Electron Microscopy (SEM). UV Weatherometer is used to examine the durability and weatherproof of its composite. The results show that the highest thickness of the highest percentage fiber filler (Pp2030) gives higher sound absorption coefficient (α). 0.9922 and 0.99889 which contributed from low and high frequency absorption level respectively. The smallest pores size structure was observed with highest filler loading of PP20. The higher the thickness and the higher the percentage loading of wood filler gives smaller pore structure, consequently, increased the sound absorption coefficient level. Meanwhile, the stability of polymer foam composites is high due to unchanged pore structures morphology with prolonged ultra violet exposure.

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Section: Sound Absorption Of Uv Irradiation Exposures Of Fc and Pumentioning

confidence: 99%

Development and Characterization on sound acoustic at photo-induced polymer foam composited at prolonged ultra-violet exposure

Zaliran¹,

Rus²,

Kormin³

et al. 2018

IJET

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show abstract

Assessment of the Behaviour of Low-Modulus Polyurethane Foams Subjected to Severe Shear Deformation Conditions

Signorini

2022

Lecture Notes in Mechanical Engineering

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Assessing the progress of degradation in polyurethanes by chemiluminescence and thermal analysis. II. Flexible polyether- and polyester-type polyurethane foams

Rychlý

Lattuati-Derieux

Lavédrine

et al. 2011

Polymer Degradation and Stability

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Inhibition of the Discoloration of Polyurethane Foam Caused by Ultraviolet Light

Cited by 5 publications

References 2 publications

Development and Characterization on sound acoustic at photo-induced polymer foam composited at prolonged ultra-violet exposure

Development and Characterization on sound acoustic at photo-induced polymer foam composited at prolonged ultra-violet exposure

Assessment of the Behaviour of Low-Modulus Polyurethane Foams Subjected to Severe Shear Deformation Conditions

Assessing the progress of degradation in polyurethanes by chemiluminescence and thermal analysis. II. Flexible polyether- and polyester-type polyurethane foams

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