Article
Polymer Science
Shohei Iwasaki, Yohei Uchiyama, Miwa Tenma, Masayuki Yamaguchi
Summary: The study found that injection-molded plates containing lithium stearate were more transparent than those containing calcium stearate, but in certain conditions, calcium stearate could effectively improve transparency.
Review
Polymer Science
Bo Wu, Xian Zheng, Wenjie Xu, Yanwei Ren, Haiqiang Leng, Linzhi Liang, De Zheng, Jun Chen, Huanfeng Jiang
Summary: The beta-crystals of polypropylene have improved toughness and heat resistance. The introduction of beta-nucleating agents is the most reliable method to obtain beta-PP. This study provides a detailed list of newly developed beta-nucleating agents, including polymer ones, and analyzes the factors affecting beta-nucleation efficiency, as well as discussing potential future research directions.
Article
Polymer Science
Yang Yue, Xuan Sha, Fushan Wang, Yan Gao, Liangliang Zhang, Xinxin Wang, Jiachun Feng
Summary: The effect of beta-nucleating agent on the self-nucleation of isotactic polypropylene was systematically investigated in this study. It was found that the presence of beta-NA increased the transition temperatures and narrowed the temperature width of the self-nucleation domain of iPP. The increased thermal stability of ordered structures in iPP containing beta-NA may be related to the beta-alpha transformation occurred upon heating.
Article
Thermodynamics
Qian Ding, Hao Fu, Chaoran Hua, Xinman Jiang, Jia Yu, Keming Zhu
Summary: This study investigates the crystallization behavior, melting characteristics, and semicrystalline morphologies of wollastonite-filled recycled polypropylene (R-PP) composites with and without beta-nucleating agent. The addition of beta-nucleating agent can significantly increase the beta-phase content in wollastonite-filled R-PP composites, providing an effective method for achieving high value-added and low-cost recycling of R-PP.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Multidisciplinary Sciences
Yinan Liu, Feng Chen, Xiaohui Ni, Xinghua Xia
Summary: This study explores the method of decorating wood fiber/polypropylene (WF/PP) composites with wood veneer, and finds that it can improve the surface bonding strength and mechanical strength of the composite material.
SCIENTIFIC REPORTS
(2022)
Article
Polymer Science
Shiqi Chen, Luhan Bai, Xuanlun Wang, Handong Li, Ben Bin Xu, Hassan Algadi, Zhanhu Guo
Summary: This study investigates the effect of the content of nano-SiO2/beta-nucleating agent on the crystallization and mechanical behaviors of PP-R. It is found that an appropriate content of nano-SiO2 and beta-nucleating agent can enhance the mechanical properties of the composite. Furthermore, nano-SiO2/beta-nucleating agent significantly accelerates the nucleation and growth of crystallites.
POLYMER INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Yitong Ma, Pei Tian, Malayphone Bounmyxay, Yiwen Zeng, Nong Wang
Summary: This paper prepared spherical calcium carbonate particles and deposited nanoscale spherical silica on their surface to form a composite material with a micro-nano complex structure and hydrophobicity. The modified CaCO3@SiO2 composite showed good superhydrophobicity with high contact angle. The influence of material roughness on its hydrophobicity was studied using the Cassie model theory.
Article
Polymer Science
Xian Zhang, Shicheng Zhao, Shiao-Wei Kuo, Wei-Cheng Chen, Mohamed Gamal Mohamed, Zhong Xin
Summary: The study synthesized zinc bicyclo [2.2.1]-heptane-2, 3-dicarboxylate-double-decker silsesquioxanes (Zn2(DDSQ-ND)) for the first time and investigated its effect as a novel and effective nucleating agent in the crystallization behavior of isotactic polypropylene (iPP). The results showed that Zn2(DDSQ-ND) accelerated the formation of ?-phase iPP and acted as a novel ?-nucleating agent in the iPP system.
Article
Construction & Building Technology
Haniyeh Hosseinzadeh, Amir Masoud Salehi, Mojtaba Mehraein, Gholamreza Asadollahfardi
Summary: The study compared the properties of high-strength and ordinary concrete with different types of fibers (PPFs, HPP fibers, and SF) under standard and sulfate curing conditions. The addition of PPF and SF reduced the workability of the mixtures containing supplementary cementitious material. The mixture with 1% SF and 0.2% PPF showed the highest compressive strength, while the mixture with 0.5% HPP fibers, 1% SF, and 0.2% PPF showed the highest tensile strength. The flexural strength was highest in the mixture with 0.5% HPP fibers and 1% SF. Fiber-reinforced concretes had lower 30-minute water absorption compared to non-fiber samples, with the sample containing 0.5% PPF and 20% silica fume showing the lowest absorption of 0.53%.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Composites
Xujing Yang, Jiangyan Chang, Wenjun Fang, Zhiwei Yu, Maojun Li, Qing Li
Summary: Crystallization and phase engineering can significantly improve the impact toughness and heat deflection temperature of long glass fiber-reinforced polypropylene random copolymer (LGF/PPR) composites by tuning the crystallization behavior and phase structure through introducing beta-nucleating agent (beta-NA). The introduction of beta-NA increases the impact strength of beta-PPR and beta-LGF/PPR/MPPR, paving the way for preparing LGF/PPR composites with high-impact toughness. The study reveals the influence of LGF and beta-NA on the nucleation and crystallization mechanism of the PPR matrix, establishing a correlation with tensile and impact properties.
POLYMER COMPOSITES
(2021)
Article
Construction & Building Technology
Haiming Chen, Qian Chen, Yangchen Xu, Abubakar S. Lawi
Summary: Adding silica fume (SF) and fly ash (FA) into polypropylene (PP) filled mortar has shown to reduce porosity and water absorption while improving compressive and flexural strength. The combination of SF and FA also promoted strength development and reduced shrinkage, providing a new solution to the issues of low strength and large shrinkage in plastic mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Xiaoke Liu, Shuang Jin, Zhiliang Shi, Hang Cong, Wei Gong, Yuhui Zhou
Summary: A novel beta-nucleating and foaming nucleating agent HQ[6]/EA was synthesized for polypropylene (PP), which significantly improved the crystallization rate, crystallinity, and mechanical properties of nucleated PP. When used as a nucleating agent, HQ[6]/EA showed reduced cell size and increased cell density in the foamed PP composite. The addition of HQ[6]/EA at 0.5% (by weight) exhibited considerable enhancement in tensile, flexural strength, and impact strength properties of PP composites.
IRANIAN POLYMER JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yang Yue, Xinxin Wang, Jiachun Feng
Summary: The concentration of nucleating agent DCHT significantly influences the crystallization behavior of iPP, with lower concentrations leading to increased Tc after shearing and decreased Tc after relaxation, while higher concentrations show minimal changes in Tc. Various forms of DCHT and their assembly play a crucial role in the shear-induced crystallization process of iPP.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Wanxin Peng, Jian Kang, Xiuduo Song, Yue Zhang, Bo Hu, Ya Cao, Ming Xiang
Summary: The effects of MXene on the crystallization behavior of beta-nucleated isotactic polypropylene (iPP) were studied, revealing that the beta-nucleation efficiency of WBG-II is higher than the alpha-nucleation efficiency of MXene when compounded together, indicating a competitive relationship between the two.
Article
Polymer Science
Juan Li, Chunping Yang, Nan Liu, Shengbao He, Tianwei Sun, Jing Zhang
Summary: A ternary hybrid nucleating agent (THNA) powder was successfully prepared by co-spray drying, which effectively increased the crystallization temperature and improved the mechanical properties and transparency of iPP.
Article
Materials Science, Textiles
Supannee Boonroeng, Kawee Srikulkit, John H. Xin, Liang He
FIBERS AND POLYMERS
(2015)
Article
Materials Science, Multidisciplinary
Sarit Thanomchat, Kawee Srikulkit
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2015)
Article
Materials Science, Ceramics
Charungkit Chaikeaw, Kawee Srikulkit
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
W. Yingnakhon, K. Srikulkit
ASIAN JOURNAL OF CHEMISTRY
(2013)
Article
Materials Science, Textiles
Somchai Udon, Panya Srichandr, Kawee Srikulkit
FIBERS AND POLYMERS
(2013)
Article
Engineering, Chemical
Apicha Thepthawat, Kawee Srikulkit
POLYMER ENGINEERING AND SCIENCE
(2014)
Article
Multidisciplinary Sciences
Nopparut Kiangkitiwan, Kawee Srikulkit
SCIENTIFIC WORLD JOURNAL
(2013)
Article
Polymer Science
Kittithorn Lertphirun, Kawee Srikulkit
INTERNATIONAL JOURNAL OF POLYMER SCIENCE
(2019)
Article
Engineering, Chemical
Nopparut Kiangkitiwan, Kawee Srikulkit
Summary: Bacterial cellulose (BC) hydrogels were cultured using a kombucha SCOBY starter, and BC/graphene oxide (GO) composite films were prepared. The mechanical properties of different films were investigated, showing that an increase in dyeing time resulted in flexible conductive composite films with excellent mechanical properties.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Polymer Science
Thichakorn Sungoradee, Kawee Srikulkit
Summary: In this study, PSS/PDADMAC complex hydrogels were successfully prepared and a uniform PEC hydrogel with porous morphology was obtained through dialysis. The PSS/PDADMAC hydrogels showed excellent dimensional stability, viscoelasticity, and affinity to textile dyes.
Article
Multidisciplinary Sciences
Nopparut Kiangkitiwan, Thanakorn Wasanapiarnpong, Kawee Srikulkit
Summary: Multilayered bacterial cellulose/reduced graphene oxide composite films were fabricated using a dyeing method. The color strength increased with an increase in dyeing cycle, but the surface hydrophilicity decreased. The evaluation of electrochemical behavior showed that MBC-1 exhibited the highest specific capacitance value, and the specific capacitance decreased with an increase in dyeing cycle. However, the long-term cycle stability was good in all cases.
Proceedings Paper
Materials Science, Multidisciplinary
Suttipan Pavasupree, Kawee Srikulkit, Ratthapol Rangkupan
MATERIALS ENGINEERING AND TECHNOLOGY
(2014)
Article
Materials Science, Multidisciplinary
Sirilak Arunsawad, Kawee Srikulkit, Sarintorn Limpanart
JOURNAL OF METALS MATERIALS AND MINERALS
(2014)
Article
Materials Science, Multidisciplinary
Natthaphop Suwannamek, Kawee Srikulkit
JOURNAL OF METALS MATERIALS AND MINERALS
(2015)