Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate

In order to explore the effect of accelerated UV aging on the mechanical and optical properties of polycarbonate, the changes of polycarbonate's transmittance, yellow index, tensile properties and flexural properties with aging time and radiation intensity were studied by using the method of ex...

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Autores principales:	SUN Qi-wei, WANG Tao, CHEN Yu-hong, GE Yong, LANG Jian-lin, WANG Bo-lun, YAN Yue
Formato:	article
Lenguaje:	ZH
Publicado:	Journal of Materials Engineering 2021
Materias:	uv accelerated aging mechanical property optical property polycarbonate Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/d1a743b2ffea4267b06486029b14b332
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spelling	oai:doaj.org-article:d1a743b2ffea4267b06486029b14b3322021-11-12T03:01:54ZEffect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate1001-438110.11868/j.issn.1001-4381.2020.001006https://doaj.org/article/d1a743b2ffea4267b06486029b14b3322021-11-01T00:00:00Zhttp://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.001006https://doaj.org/toc/1001-4381In order to explore the effect of accelerated UV aging on the mechanical and optical properties of polycarbonate, the changes of polycarbonate's transmittance, yellow index, tensile properties and flexural properties with aging time and radiation intensity were studied by using the method of exposure to laboratory fluorescent ultraviolet lamps source. The results show that the light transmittance of polycarbonate is decreased with the increase of UV aging time and radiation intensity. According to FT-IR, several colored groups are created in polycarbonate because of prolonging the aging time and increasing the radiation intensity, which affects the optical property of polycarbonate. The tensile strength and elongation at break of polycarbonate are decreasd with the increase of UV aging time and irradiation intensity. The microcracks and holes on surface of polycarbonate are produced by longer aging time and higher radiation energy, which expand under tensile load and cause fracture. The flexural strength of polycarbonate is increased with the increase of UV aging time and irradiation intensity if the testing surface is irradiated. The degradation layer formed on the surface of the material increases the stiffness of polycarbonate, which leads to the increase of strength. The tensile modulus and bending modulus of polycarbonate are less affected by aging time and irradiation strength because UV accelerated aging has little effect on molecular weight.SUN Qi-weiWANG TaoCHEN Yu-hongGE YongLANG Jian-linWANG Bo-lunYAN YueJournal of Materials Engineeringarticleuv accelerated agingmechanical propertyoptical propertypolycarbonateMaterials of engineering and construction. Mechanics of materialsTA401-492ZHJournal of Materials Engineering, Vol 49, Iss 11, Pp 83-89 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	uv accelerated aging mechanical property optical property polycarbonate Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	uv accelerated aging mechanical property optical property polycarbonate Materials of engineering and construction. Mechanics of materials TA401-492 SUN Qi-wei WANG Tao CHEN Yu-hong GE Yong LANG Jian-lin WANG Bo-lun YAN Yue Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
description	In order to explore the effect of accelerated UV aging on the mechanical and optical properties of polycarbonate, the changes of polycarbonate's transmittance, yellow index, tensile properties and flexural properties with aging time and radiation intensity were studied by using the method of exposure to laboratory fluorescent ultraviolet lamps source. The results show that the light transmittance of polycarbonate is decreased with the increase of UV aging time and radiation intensity. According to FT-IR, several colored groups are created in polycarbonate because of prolonging the aging time and increasing the radiation intensity, which affects the optical property of polycarbonate. The tensile strength and elongation at break of polycarbonate are decreasd with the increase of UV aging time and irradiation intensity. The microcracks and holes on surface of polycarbonate are produced by longer aging time and higher radiation energy, which expand under tensile load and cause fracture. The flexural strength of polycarbonate is increased with the increase of UV aging time and irradiation intensity if the testing surface is irradiated. The degradation layer formed on the surface of the material increases the stiffness of polycarbonate, which leads to the increase of strength. The tensile modulus and bending modulus of polycarbonate are less affected by aging time and irradiation strength because UV accelerated aging has little effect on molecular weight.
format	article
author	SUN Qi-wei WANG Tao CHEN Yu-hong GE Yong LANG Jian-lin WANG Bo-lun YAN Yue
author_facet	SUN Qi-wei WANG Tao CHEN Yu-hong GE Yong LANG Jian-lin WANG Bo-lun YAN Yue
author_sort	SUN Qi-wei
title	Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
title_short	Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
title_full	Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
title_fullStr	Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
title_full_unstemmed	Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
title_sort	effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate
publisher	Journal of Materials Engineering
publishDate	2021
url	https://doaj.org/article/d1a743b2ffea4267b06486029b14b332
work_keys_str_mv	AT sunqiwei effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT wangtao effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT chenyuhong effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT geyong effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT langjianlin effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT wangbolun effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate AT yanyue effectofultravioletacceleratedagingonmechanicalandopticalpropertiesofpolycarbonate
_version_	1718431318407118848

Effect of ultraviolet accelerated aging on mechanical and optical properties of polycarbonate

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