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Wu B, Zheng X, Ren Y, Yu H, Leng H, Wang Y, Jiang H. An efficient β-nucleating agent with high lattice matching rate for plate-like crystallization of polypropylene random copolymer. RSC Adv 2024; 14:11584-11593. [PMID: 38601709 PMCID: PMC11004731 DOI: 10.1039/d3ra08484a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/03/2024] [Indexed: 04/12/2024] Open
Abstract
It is challenging to naturally produce large amounts of β-crystals by directly adding a commercial β-nucleating agent (β-NA) into polypropylene random copolymer (PPR) at present. In this work, a novel rare earth β-NA WBN-28 was directly introduced into PPR to prepare β-PPR with high β-crystal conversion. The results of differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) indicated that it is an efficient β-NA for PPR. The β-conversion rate (β-CR) could surpass 85% when the nucleating agent content was mere 0.05%. With the further increment of nucleating agent, the β-CR increased gradually, which could reach 89.5% and 86.9% respectively calculated by DSC and WAXD when the addition amount was 0.4%. The incredible high β-CR delayed the βα-recrystallization in isothermal crystallization. The fusion peak of α-crystal was unobserved below the isothermal crystallization temperature of 122 °C when the addition amount was more than 0.2%. Furthermore, there was a highly ordered structure in WBN-28 with the periodicity of 12.89 Å, which was approximately twice of the unit cell parameter in the c direction of β-PP, indicating a high lattice matching rate between them. Intuitively observed by polarizing optical microscope (POM), the crystal grains of the blends with β-NA were more refined and finally crystallized in a plate-like shape. The forming process of the plate-like β crystalline regions were proposed by scanning electron microscope (SEM) and POM.
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Affiliation(s)
- Bo Wu
- School of Chemistry and Chemical Engineering, South China University of Technology 381 Wushan Road Guangzhou 510641 China +86-20-87112906 +86-20-87112906
- Guangdong Winner New Materials Technology Co., Ltd. Foshan 528521 China
| | - Xian Zheng
- Guangdong Winner New Materials Technology Co., Ltd. Foshan 528521 China
| | - Yanwei Ren
- School of Chemistry and Chemical Engineering, South China University of Technology 381 Wushan Road Guangzhou 510641 China +86-20-87112906 +86-20-87112906
| | - Hailong Yu
- Guangdong Winner New Materials Technology Co., Ltd. Foshan 528521 China
| | - Haiqiang Leng
- Guangdong Winner New Materials Technology Co., Ltd. Foshan 528521 China
| | - Yubo Wang
- School of Chemistry and Chemical Engineering, South China University of Technology 381 Wushan Road Guangzhou 510641 China +86-20-87112906 +86-20-87112906
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology 381 Wushan Road Guangzhou 510641 China +86-20-87112906 +86-20-87112906
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Wu B, Zheng X, Xu W, Ren Y, Leng H, Liang L, Zheng D, Chen J, Jiang H. β-Nucleated Polypropylene: Preparation, Nucleating Efficiency, Composite, and Future Prospects. Polymers (Basel) 2023; 15:3107. [PMID: 37514497 PMCID: PMC10383444 DOI: 10.3390/polym15143107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
The β-crystals of polypropylene have a metastable crystal form. The formation of β-crystals can improve the toughness and heat resistance of a material. The introduction of a β-nucleating agent, over many other methods, is undoubtedly the most reliable method through which to obtain β-PP. Furthermore, in this study, certain newly developed β-nucleating agents and their compounds in recent years are listed in detail, including the less-mentioned polymer β-nucleating agents and their nucleation characteristics. In addition, the various influencing factors of β-nucleation efficiency, including the polymer matrix and processing conditions, are analyzed in detail and the corresponding improvement measures are summarized. Finally, the composites and synergistic toughening effects are discussed, and three potential future research directions are speculated upon based on previous research.
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Affiliation(s)
- Bo Wu
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
- The State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Xian Zheng
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
| | - Wenjie Xu
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
- The State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Yanwei Ren
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
- The State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Haiqiang Leng
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
| | - Linzhi Liang
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
| | - De Zheng
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
| | - Jun Chen
- Guangdong Winner New Materials Technology Co., Ltd., Gaoming District, Foshan 528521, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
- The State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
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Li J, Jia S, Yang D, Li X, Li D, Ye X, Guan P, Zhao Y. Reutilization of crystalline waste plastics for modified asphalt using twin‐screw extrusion: Polyethylene and polypropylene as typical subjects. J Appl Polym Sci 2022. [DOI: 10.1002/app.52690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Junwei Li
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
- Research Center Tianjin Key Laboratory of Building Green Functional Materials Tianjin P. R. China
| | - Shoubo Jia
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
| | - Dan Yang
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
| | - Xin Li
- Comprehensive Traffic Research Center Tianjin Institute of Transportation Science Tianjin P. R. China
| | - Dongdong Li
- Transportation Division Tianjin Transportation Infrastructure Maintenance Group Co. Ltd Tianjin P. R. China
| | - Xia Ye
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
| | - Pengbing Guan
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
| | - Yongke Zhao
- School of Materials Science and Engineering Tianjin Chengjian University Tianjin P. R. China
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Zuo K, Xu J, Xie S, Zhang S, Hou J, Yang Y, Zhang X, Chen J. Microcellular foaming and mechanical properties of iPPF reinforced PPR composites. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2020.105161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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