Article
Biochemistry & Molecular Biology
M. Kervran, M. Shabanian, C. Vagner, M. Poncot, J. Meier-Haack, F. Laoutid, S. Gaan, H. Vahabi
Summary: Nowadays, the development of new biobased/biodegradable polymers from biological resources is gaining attention for sustainability. In this study, the flame-retardant effect of a newly developed flame retardant based on melamine in a PLA/PHB blend was investigated. The introduction of this new FR combined with ammonium polyphosphate (APP) and sepiolite into the blend resulted in reduced flammability, with a significant decrease in the peak of heat release rate (pHRR). This study also provided the first cone calorimeter analyses of PLA/PHB composites, showing the fire behavior evolution from thin sample to thick charring behavior.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Thermodynamics
Xinxin Wang, Wentao He, Lijuan Long, Shaowen Huang, Shuhao Qin, Guomin Xu
Summary: The study successfully improved the flame resistance of PLA by incorporating a phosphorus and nitrogen-containing DOPO derivative (DOPO-NH2), achieving an LOI value of 26% with just 5% mass of DOPO-NH2 added. The hydrogen bonds formed between DOPO-NH2 and the PLA matrix maintained the mechanical properties of the composite.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Polymer Science
Wangping Qin, Ruike Zhang, Yan Fu, Jie Chang
Summary: In this study, a fully bio-based flame retardant PNF was synthesized using a green and convenient ionic reaction, and then blended with polylactic acid (PLA). The results showed that the PLA composite with 4 wt% PNF had excellent flame retardancy and improved mechanical properties and heat resistance compared to pure PLA. The research in this article expands the application of bio-based flame-retardant PLA in the field of electronic appliances and office equipment.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Wen-Yu Hu, Ke-Xin Yu, Qi-Na Zheng, Qi-Liang Hu, Cheng-Fei Cao, Kun Cao, Weifu Sun, Jie-Feng Gao, Yongqian Shi, Pingan Song, Long-Cheng Tang
Summary: An intelligent fire warning material based on montmorillonite has been developed, which shows excellent cyclic warning performance and reliable flame retardancy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Multidisciplinary
Yongqian Shi, Zixiao Wang, Chuan Liu, Hengrui Wang, Jin Guo, Libi Fu, Yuezhan Feng, Liancong Wang, Fuqiang Yang, Minghua Liu
Summary: As a biodegradable polymeric material, polylactic acid (PLA) has various applications, but its high flammability limits its potential use. Recent research has focused on using modified titanium carbide nanosheets and silicon microencapsulated ammonium polyphosphate to improve the fire safety of PLA composites. The results showed significant improvement in flame retardancy and reduction in toxic gases.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Chemical
Yue Xu, Yong Qiu, Chentao Yan, Lubin Liu, Miaojun Xu, Baoti Xu, Bin Li
Summary: A multifunctional additive (PDPO) was successfully synthesized and used to fabricate flame retardant PLA biocomposites, improving their crystallization rate and flame retardant performance. The introduction of PDPO effectively inhibited the spread of fire, with minimal impact on mechanical properties, showing broad application prospects in fields such as electronic devices, automobiles, and 3D printing materials.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Qing Zhang, Huiyuan Liu, Junxia Guan, Xiaochun Yang, Baojing Luo
Summary: In this study, phosphating sesbania gum (DESG) was obtained by modifying sesbania gum (SG), and flame-retardant polylactic acid (PLA) composites were prepared by blending with DESG and ammonium polyphosphate (APP). The experimental results showed that the synergistic effect of DESG and APP effectively improved the flame retardancy of PLA.
Article
Forestry
Zhouyao Yue, Huashan Wang, Mingxiu Zhang, Meiyi Wang
Summary: In this study, polylactic acid (PLA)/epichlorohydrin modified pinewood flour (EWF) composites were prepared and systematically investigated for their mechanical, thermal, and rheological properties. The results showed that the addition of epichlorohydrin modified pinewood flour (EWF) significantly improved the tensile and impact properties of the biocomposite, as well as enhanced the crystallinity. Additionally, the PLA/EWF composite exhibited improved storage and loss modulus due to increased molecular entanglement and crosslinking.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Crystallography
Su-Mei Huang, Jiunn-Jer Hwang, Hsin-Jiant Liu, An-Miao Zheng
Summary: In this study, montmorillonite (MMT) clay modified with NH4Cl was successfully dispersed in a polyactic acid (PLA) matrix, improving thermal stability and mechanical properties. The addition of organophilic clay enhanced thermal stability and increased material strength, demonstrating significant potential for improving composite material performance.
Article
Engineering, Civil
Qinyong Liu, Xingyu Chen, Guiyang Zhu, Xiaoyu Gu, Hongfei Li, Sheng Zhang, Jun Sun, Xiaodong Jin
Summary: A novel integrative supramolecular intumescent flame retardant MAP was fabricated and melt-blended with PLA to enhance its flame retardancy. The addition of 3% MAP-Zn significantly increased LOI, upgraded UL-94 rating, and reduced peak heat release rate.
FIRE SAFETY JOURNAL
(2022)
Article
Engineering, Environmental
Lubin Liu, Yue Xu, Yu Pan, Miaojun Xu, Yifan Di, Bin Li
Summary: NTPA has successfully enhanced the flame retardancy and crystallization rate of PLA composites, while maintaining their transparency and mechanical properties, showing great potential for advanced optoelectronic devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Thermodynamics
Thuy Tien Nguyen Thanh, Beata Szolnoki, Daniel Vadas, Milan Nacsa, Gyorgy Marosi, Katalin Bocz
Summary: This study comprehensively evaluates the effects of sepiolite and montmorillonite clay minerals on the flame-retardant properties of PLA composites with ammonium polyphosphate. The results show that sepiolite has a more significant impact, and organomodification improves the compatibility of the clay minerals but has contradictory effects on flame retardancy.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Quan Fang, Yuanyuan Zhan, Xu Chen, Rongkai Wu, Weijia Zhang, Yu Wang, Xujuan Wu, Yunlong He, Juanjuan Zhou, Bihe Yuan
Summary: A bio-based intumescent flame retardant was successfully synthesized using a simple and environmentally friendly approach. The flame retardancy and anti-dripping properties of polylactic acid were improved by incorporating the flame retardant and a charring agent. The resulting PLA composite showed excellent flame-retardant effect and achieved a UL-94 V-0 rating.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Applied
Yadong Wang, Hao Wang, Luoxin Wang, Zongmin Zhu
Summary: In this study, flame-retardant and toughened PLA was successfully prepared using waste PPS microfibers. The waste PPS microfibers acted as synergists to improve the impact properties and flame retardancy of PLA composites, as well as heterogeneous nucleating agents to promote PLA crystallization. The addition of waste PPS microfibers significantly increased the crystallinity and improved the UL-94 rating of the PLA composites.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Materials Science, Paper & Wood
Jingxiu He, Zhe Sun, Yajun Chen, Bo Xu, Juan Li, Lijun Qian
Summary: Cellulose nanocrystals (CNCs) are used as a bio-based carbon source in an intumescent system. However, CNCs have low thermal stability and adverse impact on performance. By designing phosphazene-containing CNCs (PIN-CNCs), thermal stability and charring ability are improved. PLA composites with PIN-CNCs and flame retardants show enhanced flame retardancy and mechanical properties.
Article
Materials Science, Biomaterials
Yijue Wang, Liqing Zou, Zhe Qiang, Jianhai Jiang, Zhengfei Zhu, Jie Ren
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2020)
Article
Chemistry, Applied
Jiao Wang, Jianbo Li, Xuefang Wang, Qian Cheng, Yunxuan Weng, Jie Ren
REACTIVE & FUNCTIONAL POLYMERS
(2020)
Review
Chemistry, Multidisciplinary
Fuhong Luo, Alexander Fortenberry, Jie Ren, Zhe Qiang
FRONTIERS IN CHEMISTRY
(2020)
Article
Nanoscience & Nanotechnology
Haifeng Niu, Jianbo Li, Xuefang Wang, Fuhong Luo, Zhe Qiang, Jie Ren
Summary: The study presents a facile method for preparing a superhydrophobic and photothermal PDMS/CuS/PDA@MF sponge, which exhibits high oil absorption capacity, robust recycling, and excellent photothermal performance under sunlight irradiation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Haifeng Niu, Zhe Qiang, Jie Ren
Summary: A magnetic-responsive superhydrophobic melamine sponge has been developed with high water contact angle, excellent oil absorption capacity, durability, and recyclability. This sponge can efficiently separate oils and water, and recover organics from water using a pump.
Article
Nanoscience & Nanotechnology
Yuan Tian, Ya Gao, Xueyi Pan, Qiaochu Liu, Jiao Wang, Ming Jin, Jianbo Li
Summary: This study successfully reduced the viscosity of resin and improved the double bond conversion rate by synthesizing low-viscosity bio-based UV-curable polyester methacrylates. Furthermore, after blending the composite resin with cellulose nanocrystals, the water absorption rate significantly decreased.
Article
Polymer Science
Fuhong Luo, Jianbo Li, Fan Ji, Yunxuan Weng, Jie Ren
Summary: This study successfully synthesized a PLA-based thermoplastic elastomer (PLATPE) with high toughness and ductility, which was then utilized to prepare PLA-based shape memory polymer materials with high shape fixation rates. By further modifying the PLA/PCLTPU shape memory polymer system with compound plasticizers, a low-temperature-response shape memory polymer was obtained, showing promising potential for biomedical materials applications.
Article
Chemistry, Applied
Zefei Yuan, Qiaochu Liu, Xueyi Pan, Jiao Wang, Ming Jin, Jianbo Li
Summary: This study synthesized a series of low viscosity and colorless transparent UV-curable polyester methacrylate resins derived from renewable biologically fermented lactic acid, which showed excellent performance in preparing environmentally friendly UV coatings. Characterization and performance tests confirmed the high tensile strength, bending strength, bending modulus, glass transition temperature, pencil hardness, Shore D hardness, adhesion, and flexibility of the resins, making them promising candidates for sustainable development.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Polymer Science
Jiaying Gong, Zhe Qiang, Jie Ren
Summary: A one-step reactive extrusion process has been demonstrated to toughen the PLA blend without sacrificing its mechanical strength and degradability. The optimized condition led to an improved elongation at break of 15.95%, which is 3.1 times of the PLA and 1.5 times of the PLA/PHBV blend without the initiator.
Article
Engineering, Chemical
Xueyi Pan, Yuan Tian, Jianbo Li, Qinggang Tan, Jie Ren
Summary: Bio-based isosorbide, 1,3-propanediol, and dicarboxylic acids were used to synthesize isosorbide-based polyester polyols, which were then used to prepare polyurethane reactive hot-melt adhesives. The properties of the polyols and adhesives were studied, and the results showed that the bio-based PURHMAs exhibited good tensile properties and thermal resistance, indicating their potential application in the adhesive industry.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Applied
Mengjia Chen, Xueyi Pan, Yuan Tian, Jianbo Li, Qinggang Tan, Ming Jin, Jie Ren
Summary: Isosorbide (IS) is used as a source material to prepare polyurethane acrylate resins (PUA-ISCL2/4/6/8) and ultimately UV-cured coatings with adjustable viscosity, thermal stability, mechanical properties, and good hydrophilicity. The double bond conversion of PUA-ISCL8 reached up to 83% and the prepared coatings exhibited suitable pencil hardness and a high glass transition temperature (Tg) of 74 degrees C. This study proposes a method to prepare UV-cured coatings with excellent overall performance by regulating the ratio of IS and CL, which shows great potential for practical applications.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Physical
Haifeng Niu, Jianbo Li, Zhe Qiang, Jie Ren
Summary: This study developed an elastic carbon sorbent through the pyrolysis of melamine foam, which possesses light weight, superhydrophobicity, high mechanical strength, and efficient oil uptake capability. The sorbent can significantly reduce the viscosity of heavy crude oil under mild sunlight exposure or low voltage, offering a fast cleanup approach for accidental oil spills under all weather conditions. Overall, the carbonized melamine foam provides an ideal material solution for large-scale crude oil cleanup through its versatile and efficient cleanup approaches.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
