Interfacial structure and properties of isotactic polybutene-1/polyethylene blends

Polymer blending is one of the most economical and effective techniques for achieving products with high comprehensive performances. However, the immiscibility between polymers results in a weak interface, which is typically the position where material failure starts when an external force is applie...

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Main Authors: Niu Xiu, Wen Shuai, Sun Lili, Liu Yongjia, He Aihua, Nie Huarong
Format: Article
Language:English
Published: De Gruyter 2022-05-01
Series:e-Polymers
Subjects:
Online Access:https://doi.org/10.1515/epoly-2022-0039
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author Niu Xiu
Wen Shuai
Sun Lili
Liu Yongjia
He Aihua
Nie Huarong
author_facet Niu Xiu
Wen Shuai
Sun Lili
Liu Yongjia
He Aihua
Nie Huarong
author_sort Niu Xiu
collection DOAJ
description Polymer blending is one of the most economical and effective techniques for achieving products with high comprehensive performances. However, the immiscibility between polymers results in a weak interface, which is typically the position where material failure starts when an external force is applied. Therefore, understanding and controlling the interfacial structure are important for controlling the failure behavior of polymer blends and achieving advanced materials. In this study, the related work was performed on a crystal/crystal blend of isotactic polybutene-1 and polyethylene (iPB-1/PE). The results indicated that iPB-1 and PE were partially miscible in a wide temperature window (140–220°C), and the phase separation of iPB-1/PE blends was retarded at 180°C, resulting in an increase in the interfacial thickness and interfacial adhesive strength when iPB-1/PE crystallized at a low temperature. In addition, the iPB-1/high-density PE (HDPE) samples exhibited higher interfacial adhesive strength than the iPB-1/linear low-density PE, which was attributed to the relative streamline chain structure and the wide molecular weight distribution of HDPE and improved the interpenetration, crystallization, and miscibility of iPB-1 and HDPE at the interface. During storage at room temperature, the interfacial adhesive strength of iPB-1/PE decreased because of the spontaneous crystal transition of iPB-1.
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spelling doaj.art-1e6d076689ef4554bb87f25fe4d77f0a2022-12-22T03:50:41ZengDe Gruytere-Polymers1618-72292022-05-0122150551210.1515/epoly-2022-0039Interfacial structure and properties of isotactic polybutene-1/polyethylene blendsNiu Xiu0Wen Shuai1Sun Lili2Liu Yongjia3He Aihua4Nie Huarong5Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaShandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaEditorial Office of Journal of Qingdao University of Science and Technology (Natural Science Edition), Qingdao University of Science and Technology, Qingdao 266042, ChinaShandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaShandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaShandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaPolymer blending is one of the most economical and effective techniques for achieving products with high comprehensive performances. However, the immiscibility between polymers results in a weak interface, which is typically the position where material failure starts when an external force is applied. Therefore, understanding and controlling the interfacial structure are important for controlling the failure behavior of polymer blends and achieving advanced materials. In this study, the related work was performed on a crystal/crystal blend of isotactic polybutene-1 and polyethylene (iPB-1/PE). The results indicated that iPB-1 and PE were partially miscible in a wide temperature window (140–220°C), and the phase separation of iPB-1/PE blends was retarded at 180°C, resulting in an increase in the interfacial thickness and interfacial adhesive strength when iPB-1/PE crystallized at a low temperature. In addition, the iPB-1/high-density PE (HDPE) samples exhibited higher interfacial adhesive strength than the iPB-1/linear low-density PE, which was attributed to the relative streamline chain structure and the wide molecular weight distribution of HDPE and improved the interpenetration, crystallization, and miscibility of iPB-1 and HDPE at the interface. During storage at room temperature, the interfacial adhesive strength of iPB-1/PE decreased because of the spontaneous crystal transition of iPB-1.https://doi.org/10.1515/epoly-2022-0039isotactic polybutene-1polyethyleneblending modificationinterfacial structure and properties
spellingShingle Niu Xiu
Wen Shuai
Sun Lili
Liu Yongjia
He Aihua
Nie Huarong
Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
e-Polymers
isotactic polybutene-1
polyethylene
blending modification
interfacial structure and properties
title Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
title_full Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
title_fullStr Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
title_full_unstemmed Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
title_short Interfacial structure and properties of isotactic polybutene-1/polyethylene blends
title_sort interfacial structure and properties of isotactic polybutene 1 polyethylene blends
topic isotactic polybutene-1
polyethylene
blending modification
interfacial structure and properties
url https://doi.org/10.1515/epoly-2022-0039
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AT wenshuai interfacialstructureandpropertiesofisotacticpolybutene1polyethyleneblends
AT sunlili interfacialstructureandpropertiesofisotacticpolybutene1polyethyleneblends
AT liuyongjia interfacialstructureandpropertiesofisotacticpolybutene1polyethyleneblends
AT heaihua interfacialstructureandpropertiesofisotacticpolybutene1polyethyleneblends
AT niehuarong interfacialstructureandpropertiesofisotacticpolybutene1polyethyleneblends