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Thermal, mechanical, and acoustic properties of silica‐aerogel/UPVC composites
Journal of applied polymer science, 2017-04, Vol.134 (14), p.np-n/a
Eskandari, Navid
Motahari, Siamak
Atoufi, Zhale
Hashemi Motlagh, Ghodratollah
Najafi, Mohammad
2017
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Eskandari, Navid
Motahari, Siamak
Atoufi, Zhale
Hashemi Motlagh, Ghodratollah
Najafi, Mohammad
Titel
Thermal, mechanical, and acoustic properties of silica‐aerogel/UPVC composites
Ist Teil von
Journal of applied polymer science, 2017-04, Vol.134 (14), p.np-n/a
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc
Erscheinungsjahr
2017
Quelle
Wiley InterScience Journals
Beschreibungen/Notizen
ABSTRACT The properties of silica‐aerogel/UPVC composites have been investigated with emphasis on sound and heat insulation. UPVC is a material of construction for window profiles and drainage pipes. Hydrophobic silica aerogels were synthesized using silicate sodium as a precursor through a two‐step sol–gel process. The physical and textural properties of the synthesized silica aerogels such as density, surface area, and particle size were analyzed using SEM and BET analysis. Then, the synthesized aerogels were mixed with Unplastisized Polyvinyl Chloride (UPVC) compound at five different weight ratios in an internal mixer to find out the effects of silica aerogels on the thermal, mechanical, and acoustical characteristics. The prepared UPVC/aerogel composites were characterized for tensile properties, impact strength, hardness, Vicat softening temperature, thermal conductivity, sound absorption, and sound transmission loss. The results revealed that adding silica aerogel in to the matrix of UPVC increases its hardness and softening temperature while decreases impact strength. The thermal conductivity of UPVC was decreased by up to 50% using silica aerogel. The sound absorption property of UPVC was increased up to three times by using silica aerogels due to its high porosity. Silica aerogel increased the maximum sound transmission loss of UPVC in the low frequency range. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44685.
Sprache
Englisch
Identifikatoren
ISSN: 0021-8995
eISSN: 1097-4628
DOI: 10.1002/app.44685
Titel-ID: cdi_proquest_miscellaneous_1880013235
Format
–
Schlagworte
Absorption
,
Hardness
,
Materials science
,
mechanical properties
,
Polymers
,
porous materials
,
Silica aerogels
,
Softening
,
Sound
,
Sound transmission
,
Synthesis
,
Thermal conductivity
,
thermal properties
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