Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications

The thermal-reflective coating technology can effectively realize the active cooling of asphalt pavement, thus delaying the occurrence of pavement rutting. Although solid fillers are usually used to absorb light and weaken light dazzle in traditional thermal-reflective coatings, this method makes th...

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Autores principales:	Wang Kaifeng, Cheng Jing, Zhu Yunsheng, Wang Xianrong, Li Xiaowei
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	thermal reflective coating epoxy resin liquid silicone rubber cooling performance glossiness Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/e1da80f1c3924e34a6e671efc0130bfb
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spelling	oai:doaj.org-article:e1da80f1c3924e34a6e671efc0130bfb2021-12-05T14:10:47ZExperimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications1618-722910.1515/epoly-2021-0046https://doaj.org/article/e1da80f1c3924e34a6e671efc0130bfb2021-06-01T00:00:00Zhttps://doi.org/10.1515/epoly-2021-0046https://doaj.org/toc/1618-7229The thermal-reflective coating technology can effectively realize the active cooling of asphalt pavement, thus delaying the occurrence of pavement rutting. Although solid fillers are usually used to absorb light and weaken light dazzle in traditional thermal-reflective coatings, this method makes the filler component complicated and the coatings more viscous and increases the difficulty of painting the coating material on the pavement surface. On account of all the aforementioned factors, this experimental study aims to effectively improve the performance of the thermal-reflective coating with liquid silicone rubber addition in which epoxy resin is the base material and rutile titanium dioxide is the pigment filler for the coating film. Through lab experiments, the effects of the proper liquid silicone rubber dosage on the glossiness, cooling performance, and hardness of the thermal-reflective coating are studied and analyzed. The experimental results show that the liquid silicone is very effective for coating toughness improvement. The thermal-reflective coating, when the liquid silicone rubber dosage changes from 10 to 14 wt%, exhibits a matt state, and its glossiness can be controlled below 30 GU, which meets the safety and antiglare requirements of traffic vehicles. It demonstrates that liquid silicone rubber can influence the viscosity of the thermal-reflective coatings, and when the liquid silicone dosage reaches 16 wt%, the viscosity of the coating increases by 7.26 wt% less than that of the solid matting filler. Liquid silicone rubber can also influence the cooling effect of the thermal-reflective coatings, with the liquid silicone rubber dosage of 16 wt%, the asphalt pavement temperature can reduce 0.5°C. Besides, liquid silicone rubber reduces the hardness of the coatings, the coating hardness is 6H when the liquid silicone rubber dosage is 0–10 wt%, and the hardness of the coating reduces to 5H when liquid silicone dosage is from 12 to 16 wt%, which meets the actual requirements. Therefore, this article recommends a 12 wt% dosage of the liquid silicone rubber to be used as a matting filler for the thermal-reflective coatings.Wang KaifengCheng JingZhu YunshengWang XianrongLi XiaoweiDe Gruyterarticlethermal reflective coatingepoxy resinliquid silicone rubbercooling performanceglossinessPolymers and polymer manufactureTP1080-1185ENe-Polymers, Vol 21, Iss 1, Pp 453-465 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	thermal reflective coating epoxy resin liquid silicone rubber cooling performance glossiness Polymers and polymer manufacture TP1080-1185
spellingShingle	thermal reflective coating epoxy resin liquid silicone rubber cooling performance glossiness Polymers and polymer manufacture TP1080-1185 Wang Kaifeng Cheng Jing Zhu Yunsheng Wang Xianrong Li Xiaowei Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
description	The thermal-reflective coating technology can effectively realize the active cooling of asphalt pavement, thus delaying the occurrence of pavement rutting. Although solid fillers are usually used to absorb light and weaken light dazzle in traditional thermal-reflective coatings, this method makes the filler component complicated and the coatings more viscous and increases the difficulty of painting the coating material on the pavement surface. On account of all the aforementioned factors, this experimental study aims to effectively improve the performance of the thermal-reflective coating with liquid silicone rubber addition in which epoxy resin is the base material and rutile titanium dioxide is the pigment filler for the coating film. Through lab experiments, the effects of the proper liquid silicone rubber dosage on the glossiness, cooling performance, and hardness of the thermal-reflective coating are studied and analyzed. The experimental results show that the liquid silicone is very effective for coating toughness improvement. The thermal-reflective coating, when the liquid silicone rubber dosage changes from 10 to 14 wt%, exhibits a matt state, and its glossiness can be controlled below 30 GU, which meets the safety and antiglare requirements of traffic vehicles. It demonstrates that liquid silicone rubber can influence the viscosity of the thermal-reflective coatings, and when the liquid silicone dosage reaches 16 wt%, the viscosity of the coating increases by 7.26 wt% less than that of the solid matting filler. Liquid silicone rubber can also influence the cooling effect of the thermal-reflective coatings, with the liquid silicone rubber dosage of 16 wt%, the asphalt pavement temperature can reduce 0.5°C. Besides, liquid silicone rubber reduces the hardness of the coatings, the coating hardness is 6H when the liquid silicone rubber dosage is 0–10 wt%, and the hardness of the coating reduces to 5H when liquid silicone dosage is from 12 to 16 wt%, which meets the actual requirements. Therefore, this article recommends a 12 wt% dosage of the liquid silicone rubber to be used as a matting filler for the thermal-reflective coatings.
format	article
author	Wang Kaifeng Cheng Jing Zhu Yunsheng Wang Xianrong Li Xiaowei
author_facet	Wang Kaifeng Cheng Jing Zhu Yunsheng Wang Xianrong Li Xiaowei
author_sort	Wang Kaifeng
title	Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
title_short	Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
title_full	Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
title_fullStr	Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
title_full_unstemmed	Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
title_sort	experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/e1da80f1c3924e34a6e671efc0130bfb
work_keys_str_mv	AT wangkaifeng experimentalresearchontheperformanceofthethermalreflectivecoatingswithliquidsiliconerubberforpavementapplications AT chengjing experimentalresearchontheperformanceofthethermalreflectivecoatingswithliquidsiliconerubberforpavementapplications AT zhuyunsheng experimentalresearchontheperformanceofthethermalreflectivecoatingswithliquidsiliconerubberforpavementapplications AT wangxianrong experimentalresearchontheperformanceofthethermalreflectivecoatingswithliquidsiliconerubberforpavementapplications AT lixiaowei experimentalresearchontheperformanceofthethermalreflectivecoatingswithliquidsiliconerubberforpavementapplications
_version_	1718371749800706048

Experimental research on the performance of the thermal-reflective coatings with liquid silicone rubber for pavement applications

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