Article
Engineering, Multidisciplinary
Linsen Zuo, Kui Li, Dengxun Ren, Mingzhen Xu, Lifen Tong, Xiaobo Liu
Summary: By modifying the aramid fiber, a composite material with improved performance, including surface morphology, interfacial adhesion strength, and interlaminar shear strength, was obtained.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Polymer Science
Ying Zhu, Yumeng Luo, Xiran Tang, Lifen Tong, Xiaobo Liu
Summary: In this research, h-BN was added to PEN as a filler to improve its thermal conductivity and electrical insulation. The influence of filler content on properties was studied in depth. The results showed that the thermal conductivity of the composites increased to 0.5444 Wm(-1) K-1 at 30 wt% filler content, with a 22.89% increment compared to PEN copolymer without additive. The PEN/h-BN composite exhibited excellent thermal properties and improved dielectric constant and insulation performance. The tensile strength was 62.3 MPa and the elastic modulus was 3567.5 MPa. In conclusion, the 30 wt% h-BN/PEN composite prepared in this research has great potential and promising prospects in the field of electronics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Ren-Bo Wei, Chen-Hao Zhan, Yang Yang, Peng-Lin He, Xiao-Bo Liu
Summary: This study introduces a hybrid of polyarylene ether nitrile and titanium dioxide as a thermal resistant dielectric material for capacitors. The self-crosslinked TiO2-PEN hybrids demonstrate improved dielectric constants stable over a wide temperature range, showing potential for applications in harsh environments.
CHINESE JOURNAL OF POLYMER SCIENCE
(2021)
Article
Polymer Science
Tong Cao, Lingling Wang, Guo Lin, Yanjie An, Xiaobo Liu, Yumin Huang
Summary: In this study, a novel polymer material PEN was designed and synthesized, which showed ultralow dielectric constant and excellent mechanical properties due to the introduction of low polarizability trifluoromethyl group and porous structures.
Article
Chemistry, Multidisciplinary
Pan Wang, Xidi Liu, Yong You, Mengxue Wang, Yumin Huang, Ying Li, Kui Li, Yuxin Yang, Wei Feng, Qiancheng Liu, Jiaqi Chen, Xulin Yang
Summary: Polyarylene ether nitrile (PEN) nanofibers functionalized with stimuli-response polydiacetylene monomer (PCDA) were successfully fabricated, exhibiting excellent thermal stability and corrosion resistance. The compatibility between PCDA and PEN-PPL was better than that between PCDA and PEN-BPA, resulting in uniform color change with temperature rise. The composite membranes showed good dimensional stability under high temperature and corrosive conditions.
Article
Chemistry, Physical
Tianrui Li, Guo Lin, Liang He, Yunqing Xia, Xiaoqian Xu, Yingfa Liu, Lifen Tong, Xiaobo Liu
Summary: In this paper, bisphenol A was introduced into the molecular chain by molecular design to improve the crystallization ability of PEN. Different structures of PEN copolymers were synthesized and studied for their crystallization ability, thermal and mechanical properties. The effects of hot-pressing conditions on the properties of hydroquinone/bisphenol A copolymerized PEN were investigated, and the best processing conditions were determined. This study provides guidance for the research of semi-crystalline PEN and offers a theoretical basis for its applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Polymer Science
Liang He, Xiaobo Liu, Lifen Tong
Summary: This study prepared high-performance composite electric insulating materials using PEN and BCB as raw materials by post-solid phase chemical reaction. The performance of PEN/BCB composites could be tuned by adjusting the content of BCB resin and treatment temperature. The research found that the composite material has excellent thermal properties, mechanical properties, and low dielectric constant, making it suitable for high-temperature environments.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Yumeng Luo, Guangyao Yang, Lifen Tong, Xiaobo Liu
Summary: In this study, silicone powder was introduced into PEN/MWCNTs composites as a solid lubricant to improve flowability and processability. The experimental results showed that the addition of silicone powder significantly improved the fluidity of the composites and enhanced their processing and dielectric properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
Wanru Zhang, Liang He, Ting Wang, Xiaobo Liu, Lifen Tong
Summary: A series of PENs with different molecular weights were synthesized and their effect on the performance of PEN and PEN-based FCCL were studied. The PENs showed excellent thermal properties and long service life. The tensile properties of PENs increased with increasing molecular weight, while water absorption decreased. However, the peel strength of FCCL showed an opposite trend to the tensile properties of PEN, with PEN-2 showing the highest peel strength.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Yong You, Siyi Chen, Shuang Yang, Lianjun Li, Pan Wang
Summary: This study proposes a method for preparing highly thermal-resistant dielectric nanocomposites by decorating TiO2 nanoparticles on the surface of BN nanosheets and combining them with a PEN matrix. The experimental results show that this nanocomposite material has significantly improved glass transition temperature and dielectric properties, as well as good thermal stability.
Article
Polymer Science
Liang He, Lifen Tong, Zhongxiang Bai, Guo Lin, Yunqing Xia, Xiaobo Liu
Summary: This passage introduces a special engineering plastic, polyarylene ether nitrile (PEN), which is suitable for use in harsh environments. By using a specific preparation method, the linear polymer is converted into a 3D network structure, resulting in enhanced performance.
Article
Chemistry, Physical
Shuning Liu, Ling Tu, Chenchen Liu, Lifen Tong, Zhongxiang Bai, Guo Lin, Kun Jia, Xiaobo Liu
Summary: This study focuses on preparing high-temperature resistant composites by introducing nitrile-functionalized agents on the surface of multiwalled carbon nanotubes. The resulting composites exhibit excellent mechanical, thermal, and dielectric properties, making them suitable for energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yumeng Luo, Lifen Tong, Ying Zhu, Xiaobo Liu
Summary: By preparing PEN/silicone powder/GO composite materials, this study successfully improved the performance of polymer dielectric materials, including increasing the dielectric constant and improving the molding fluidity and compatibility of the material. In addition, the composite material also showed improved thermal and mechanical properties, and it can be easily prepared, presenting great potential for applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Polymer Science
Liang He, Lifen Tong, Yunqing Xia, Guo Lin, Ting Wang, Wanru Zhang, Yingfa Liu, Xiaobo Liu
Summary: A novel polymer was prepared by combining phthalonitrile end-capped polyarylene ether nitrile (PEN-Ph) and bisphthalonitrile (BPh) using post-solid phase chemical reaction technology. The mechanical properties of the PEN-Ph/BPh composite materials were significantly improved by changing the pre-polymerization time of BPh. Furthermore, the composite films exhibited excellent thermal properties and dielectric stability, making them suitable for use in high-temperature electronic fields.
Article
Polymer Science
Liang He, Guo Lin, Xiaobo Liu, Lifen Tong
Summary: In this study, self-reinforced cross-linked polyarylene ether nitrile films were fabricated and their properties were finely tuned by controlling the crystallinity of PEN-OH. The CPEN films exhibited excellent performance and offered a new approach for designing high-performance polymeric dielectric materials.
Article
Polymer Science
Yajie Wang, Yong You, Ling Tu, Weibin Hu, Lifen Tong, Renbo Wei, Xiaobo Liu
HIGH PERFORMANCE POLYMERS
(2019)
Article
Polymer Science
Weibin Hu, Yong You, Lifen Tong, Ling Tu, Yajie Wang, Renbo Wei, Xiaobo Liu
HIGH PERFORMANCE POLYMERS
(2019)
Article
Chemistry, Physical
Hongbo Gu, Hongyuan Zhang, Chao Ma, Xiaojiang Xu, Yaqing Wang, Zicheng Wang, Renbo Wei, Hu Liu, Chuntai Liu, Qian Shao, Xianmin Mai, Zhanhu Guo
Article
Chemistry, Physical
Hongbo Gu, Xiaojiang Xu, Mengyao Dong, Peitao Xie, Qian Shao, Runhua Fan, Chuntai Liu, Shide Wu, Renbo Wei, Zhanhu Guo
Article
Chemistry, Multidisciplinary
Yong You, Ling Tu, Yajie Wang, Lifen Tong, Renbo Wei, Xiaobo Liu
Article
Polymer Science
Ling Tu, Qian Xiao, Renbo Wei, Xiaobo Liu
Article
Engineering, Environmental
Lingling Wang, Xiaocan Liu, Changyu Liu, Xuefei Zhou, Chenchen Liu, Maozeng Cheng, Renbo Wei, Xiaobo Liu
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Lifen Tong, Yajie Wang, Yong You, Ling Tu, Renbo Wei, Xiaobo Liu
Article
Chemistry, Physical
Xiaofeng Shi, Le Kang, Junmao Hong, Chao Wang, Renbo Wei, Nithesh Naik, Zhanhu Guo
Summary: A series of glycine modified Fe/Cu LDH (GFC) adsorbents were prepared with high selectivity and adsorption capacity for As (V), following Langmuir isotherms and pseudo-second-order kinetics models. GFC1 showed potential as a candidate for arsenic adsorption from wastewater with high commercial value, despite a slight decrease in adsorption capacity after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Weihua Han, Feng Gao, Lingyun Zhou, Lu Wang, Xiufu Hua, Xinyu Xue, Zhiqiang Li, Wei Luo, Lingyun Pang, Renbo Wei
Summary: A flexible FMWCNT/PEN metacomposite with negative permittivity was fabricated using a delayed phase inversion method, showing promising applications in flexible electronics. The metacomposite demonstrates a continuous conductive network and plasma-type negative permittivity spectrum, along with outstanding flexibility and stable dielectric properties even after multiple folding cycles. This work presents an innovative technique to achieve metacomposites with regulable negative permittivity and excellent mechanical properties.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Mechanics
Xuefeng Liu, Rong Guo, Feng Wu, Xinxin Che, Renbo Wei
Summary: A multi-jet-axial-swirl-blade spouted bed (MJ-ASB SB) was developed to enhance fluidization and heat and mass transfer. Simulation results showed that the combination of multi-jet spouting and axial swirl blade promoted particle turbulence and effective mixing. The MJ-ASB SB had higher slip velocity and improved water evaporation compared to conventional spouted bed (CSB) and integral multi-jet spout-fluidized bed (IMJSFB).
Article
Materials Science, Multidisciplinary
Lingling Wang, Zhongxiang Bai, Chenchen Liu, Renbo Wei, Xiaobo Liu
Summary: A series of porous fluorinated polyarylene ether nitrile (FPEN) films with ultralow permittivity and excellent mechanical properties were prepared using a delayed phase inversion approach, showing hydrophobic surface and ultralow dielectric constant. These films also maintained their ultra-low dielectric constant, high flexibility, and foldability even under humid conditions, making them suitable for applications in 5G communication systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Chuanbing Cheng, Runhua Fan, Guohua Fan, Hu Liu, Jiaoxia Zhang, Jianxing Shen, Qian Ma, Renbo Wei, Zhanhu Guo
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Materials Science, Multidisciplinary
Hongbo Gu, Hongyuan Zhang, Chao Ma, Hongling Sun, Chuntai Liu, Kun Dai, Jiaoxia Zhang, Renbo Wei, Tao Ding, Zhanhu Guo
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Renjie Li, Xiangzhen Zhu, Qingfeng Fu, Guisheng Liang, Yongjun Chen, Lijie Luo, Mengyao Dong, Qian Shao, Chunfu Lin, Renbo Wei, Zhanhu Guo
CHEMICAL COMMUNICATIONS
(2019)
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
