Preparation and mechanical properties of nano-silica/UPR polymer composite

This article mainly aims at experiments used for modifying unsaturated polyester resin (UPR), and trying to enhance the strengthening and toughening performance of nano-silica/UPR polymer composite in order to improve its integrated mechanical properties and to expand its field of application. Exper...

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Main Authors: Wang Yan-qing, Guo Yu, Cui Rong-xin, Wang Zhong-ming, Wu You-liang
Format: Article
Language:English
Published: De Gruyter 2014-09-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm-2013-0051
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spelling doaj-ee2a2319965f4b9c99364034bc7ca4532021-09-05T14:00:28ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592014-09-0121447147710.1515/secm-2013-0051Preparation and mechanical properties of nano-silica/UPR polymer compositeWang Yan-qing0Guo Yu1Cui Rong-xin2Wang Zhong-ming3Wu You-liang4School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaXuzhou Baoding Supporting Technology Co., Ltd., Xuzhou, Jiangsu 221116, ChinaThis article mainly aims at experiments used for modifying unsaturated polyester resin (UPR), and trying to enhance the strengthening and toughening performance of nano-silica/UPR polymer composite in order to improve its integrated mechanical properties and to expand its field of application. Experiments were initially used to get high dispersibility nano-silica powder by adding silane coupling agent KH570 as a dispersant into commonly and commercially available nano-silica powder. Then, high dispersibility nano-silica powder was added as a filling with different mass fraction ratios into UPR and nano-silica/UPR polymer composite samples were fabricated. Infrared spectroscopy analysis, X-ray diffraction analysis, and scanning electron microscopy (SEM) analysis were conducted for high dispersibility nano-silica powder. Mechanical properties test and SEM observation of fracture morphology were investigated for nano-silica/UPR polymer composite samples. The results revealed that adding silane coupling agent KH570 with a mass fraction ratio 3% into nano-silica powder made nano-silica best dispersed after the modification reaction at a temperature of 80°C for 2 h. When the high dispersibility nano-silica powder was added into UPR with a mass fraction ratio 1.5%, the impact strength of nano-silica/UPR polymer composite improved greatly by 9.6%. However, when the high dispersibility nano-silica powder was added into UPR with a mass fraction ratio 2%, the tensile strength, bending strength and extension rate of nano-silica/UPR polymer composite improved greatly by 152%, 102%, and 167%, respectively.https://doi.org/10.1515/secm-2013-0051mechanical propertiesnano-silica powderpolymer compositeunsaturated polyester resin (upr)
collection DOAJ
language English
format Article
sources DOAJ
author Wang Yan-qing
Guo Yu
Cui Rong-xin
Wang Zhong-ming
Wu You-liang
spellingShingle Wang Yan-qing
Guo Yu
Cui Rong-xin
Wang Zhong-ming
Wu You-liang
Preparation and mechanical properties of nano-silica/UPR polymer composite
Science and Engineering of Composite Materials
mechanical properties
nano-silica powder
polymer composite
unsaturated polyester resin (upr)
author_facet Wang Yan-qing
Guo Yu
Cui Rong-xin
Wang Zhong-ming
Wu You-liang
author_sort Wang Yan-qing
title Preparation and mechanical properties of nano-silica/UPR polymer composite
title_short Preparation and mechanical properties of nano-silica/UPR polymer composite
title_full Preparation and mechanical properties of nano-silica/UPR polymer composite
title_fullStr Preparation and mechanical properties of nano-silica/UPR polymer composite
title_full_unstemmed Preparation and mechanical properties of nano-silica/UPR polymer composite
title_sort preparation and mechanical properties of nano-silica/upr polymer composite
publisher De Gruyter
series Science and Engineering of Composite Materials
issn 0792-1233
2191-0359
publishDate 2014-09-01
description This article mainly aims at experiments used for modifying unsaturated polyester resin (UPR), and trying to enhance the strengthening and toughening performance of nano-silica/UPR polymer composite in order to improve its integrated mechanical properties and to expand its field of application. Experiments were initially used to get high dispersibility nano-silica powder by adding silane coupling agent KH570 as a dispersant into commonly and commercially available nano-silica powder. Then, high dispersibility nano-silica powder was added as a filling with different mass fraction ratios into UPR and nano-silica/UPR polymer composite samples were fabricated. Infrared spectroscopy analysis, X-ray diffraction analysis, and scanning electron microscopy (SEM) analysis were conducted for high dispersibility nano-silica powder. Mechanical properties test and SEM observation of fracture morphology were investigated for nano-silica/UPR polymer composite samples. The results revealed that adding silane coupling agent KH570 with a mass fraction ratio 3% into nano-silica powder made nano-silica best dispersed after the modification reaction at a temperature of 80°C for 2 h. When the high dispersibility nano-silica powder was added into UPR with a mass fraction ratio 1.5%, the impact strength of nano-silica/UPR polymer composite improved greatly by 9.6%. However, when the high dispersibility nano-silica powder was added into UPR with a mass fraction ratio 2%, the tensile strength, bending strength and extension rate of nano-silica/UPR polymer composite improved greatly by 152%, 102%, and 167%, respectively.
topic mechanical properties
nano-silica powder
polymer composite
unsaturated polyester resin (upr)
url https://doi.org/10.1515/secm-2013-0051
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AT wangzhongming preparationandmechanicalpropertiesofnanosilicauprpolymercomposite
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