JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 140
·期 9
·e53567
·
IF 3.057
Licong Jiang,Ziwen Zhou,Feng Zhao,Song Li,Zhihua Liu,Xiaoyang Liu,Meiming Xu,Zhenxiang Xin,Shuai Zhao,Lin Li
Enteromorpha as a waste from marine pollution brings great pressure to environmental governance every year, especially for China. Under the premise of shortage of industrial materials, taking appropriate measures can turn waste into wealth, which will benefit us a lot. In this work, a bio-based reinforcing type flame retardant based on Enteromorpha is designed. The designed Enteromorpha based flame retardant system mainly is focused on the reinforcing action and the flame retardant effects on ethylene-propylene-diene tripolymer (EPDM) systemically. Therefore, with the emergence of innovate reinforcing type Enteromorpha flame retardants in the future, the application of Enteromorpha in the polymer flame retardants field will surely usher in bright development.
研究领域:
材料科学
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环境科学
·
聚合物工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 22
·14082
·
IF 6.208
Yingjie Su,Keyu Xie,Jiaohui Xiao,Siji Chen
In this study,Irisensata Thunbgrass (ITG) was used as a biomass carbon resource to prepare biochars for the first time. After microbial treatment, the obtained microbial-treated ITG (MITG) was activated by using a mixed base as an activator for preparation of biochar (MITGB). The specific surface area and total pore volume of MITGB were 3036.4 m2/g and 1.5252 cm3/g, which were higher than those of biochar prepared without microbial treatment (ITGB, 2930.0 m2/g and 1.5062 cm3/g). Besides, the physicochemical properties of MITGB and ITGB were also quite different including micro morphology, surface chemistry, functional groups, etc. In the experiment of removing organic pollutants with synthetic dye RhB and antibiotic TH as the models, MITGB showed excellent treatment ability. The maximum adsorption capacities of MITGB for RhB and TH were 1354.2 and 1462.6 mg/g, which were higher than most of the biochars. In addition, after five cycles of recycling, the adsorption capacities of the organic pollutant models can still be maintained at more than 80%, which showed high stability. This work verified the feasibility of microbial treatment to further improve the performance of biochar and provided a new idea and direction for exploring other biochars.Keywords:microbial treatment;biochar;organic pollutants;enhanced performance;application
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER COMPOSITES
·
2020
·Vol. 42
·期 4
·1712-1726
·
IF 2.265
Zhichao Zhang,Xin Liu,HuiXin Wang,HaiFeng He,Ruiqin Bai
Due to the frequent occurrence of Enteromorpha prolifera “green tide” in recent years, how to solve the ecological disaster brought by the green tide and make maximal use of the Enteromorpha prolifera have become an urgent problem. In order to realize the resource utilization of marine biomass, we extract nanofibrillated cellulose (NFC) with high aspect ratio from Enteromorpha prolifera . Filamentous NFC is successfully extracted at nanometric scale with a diameters range of 20 ~ 40 nm, a length of several microns, and a crystallinity index of 57.2%. Then NFC/polyvinyl alcohol (PVA) composite films were prepared with NFC as fillers. In addition, for comparison, nanocrystals cellulose (NCC) with small aspect ratio was isolated from microcrystalline cellulose (MCC) to prepare NCC/PVA composite films. It is shown that because Enteromorpha prolifera ta NFC has a higher aspect ratio, it is easier to interpenetrate with PVA to form a dense network, and the lower concentration ensures the better dispersion of NFC in the matrix, so its enhancement effect on PVA composite films is better than that of NCC. When the NFC content was 0.1 wt %, the light transmittance of NFC/PVA composite film could reach more than 94%, and the swelling degree was 250%, which is 29% lower than that of the pure PVA film, the water resistance was improved. At the same time, the tensile strength, elastic modulus and toughness were 99.1%, 1547% and 117.9% respectively, which are higher than those of PVA.
研究领域:
材料科学
·
海洋生物学
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DOI
高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 11
·797
·
IF 4.3
Mingbo Guo,Yijun Wang,Lei Zhang,Junran Lu,Chang Gong,Wanning Zhang,Yuxi Fang,Xinyuan Zhu,Shunai Che
Size restrictions pose increasing challenges to the acoustic performance of microspeakers in portable devices as the size of such devices, and thus the back volume of microspeakers, continues to shrink. Filling the back volume with porous materials, such as zeolites, has been proved to be an effective strategy for improving acoustic performance. In this work, hierarchically structured ZSM-5 zeolites with abundant mesopores were synthesized via the traditional hydrothermal method by adjusting the SiO2/Al2O3ratios (SAR), and their pore structures and morphologies were systematically investigated. Their acoustic enhancement performance was evaluated using a commercial microspeaker. Based on their acoustic properties, the influence of pore structure on acoustic performance was further studied. The ZSM-5 zeolite sample with an SAR of 614, which exhibited the maximum mesopore volume, demonstrated exceptional acoustic enhancement performance with a resonance offset of 199.53 Hz and an enhanced sound pressure level of 4.74 dB at 500 Hz. The presence of mesopores significantly facilitates diffusion within the zeolite crystals, enabling air molecules to access more micropores for efficient sorption–desorption processes during diaphragm vibration in microspeakers. Furthermore, supermicropores were found to contribute to improved performance by adsorbing air molecules during diaphragm vibration, complementing the role of micropores.
研究领域:
材料科学
·
声学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLID STATE IONICS
·
2017
·
IF 2.354
Jiakui Zhang,Yahua Liu,Zhiqiang Lv,Tongkun Zhao,Ping Li,Yilei Sun,Jingtao Wang
Here, Ti 3 C 2 T x sheets, a representative of MXenes, with lamellar structure and hydrophilic surface are prepared, and then functionalized with sulfonated polyelectrolyte brushes (Ti 3 C 2 T x -SO 3 H) through a facile surface-initiated precipitation-polymerization. The Ti 3 C 2 T x -SO 3 H is then utilized as a new nanofiller to fabricate hybrid proton exchange membrane , where both acidic sulfonated poly (ether ether ketone) (SPEEK) and basic chitosan (CS) are employed as polymer matrixes . The resultant hybrid membranes are systematically characterized and measured including their microstructures, water uptake and proton conduction properties. The results demonstrate that using the sulfonated polyelectrolyte brushes, Ti 3 C 2 T x -SO 3 H sheets construct efficient proton transfer pathways and connect the inherent conduction channels/paths in polymer phase . This significantly enhances the proton conduction of polymer membrane including SPEEK membrane and CS membrane , under both hydrated condition and anhydrous condition. Particularly, the incorporation of 10 wt.% Ti 3 C 2 T x -SO 3 H readily offers 144% and 66% increase in proton conductivity , respectively, to SPEEK membrane and CS membrane under hydrated condition. Furthermore, the hybrid membranes achieve improved thermal and mechanical stabilities. These results herald further advances to preparing functionalized MXenes and their relevant hybrid materials with enhanced performances.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
·
2015
·
IF 0.961
Huazhong Liao,Dong Ma,Zepeng Jiao,Yushan Xie,Shaozao Tan,Xiang Cai,Langhuan Huang
In this study, UV-curable epoxy acrylate film was reinforced with benzyl triphenyl phosphorus chloride-intercalated vermiculite (BTPC-VMT). BTPC-VMT was prepared by intercalating benzyl triphenyl phosphorus chloride (BTPC) into vermiculite (VMT) and was used as reinforcing filler. Then, X-ray diffraction and Scanning electronic microscope results of hybrid films indicated that BTPC-VMT was well dispersed in the matrix. The hybrid films displayed enhanced tensile strength, impact strength, and pencil hardness without sacrificing elongation at break. Moreover, the thermal property of hybrid films was generally improved. The resulting hybrid films are promising for a number of applications, e.g. for metal and wood for their surface protection.
研究领域:
材料科学
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Siwen Bi,Zhuang Zhang,Zhenzhen Yang,Zitong Shen,Jiahui Cai,Jintao Hu,Haoxiang Jin,Tianhao Qiu,Peng Yu,Bin Tan
Due to the highly environment-dependent biodegradation and uncontrolled degradation period, the long-run feasibility and effectiveness of biodegradable polymers are extensively questioned to solve plastics waste accumulation and pollution problems. This work physically incorporated lipase PS from Burkholderia cepacian on cellulose nanocrystals (CNC) and embedded it in polycaprolactone (PCL) to construct stable and controllable interfacial microenvironment between CNC and PCL for the reinforcement and controllable self-driven biodegradation. The physical adsorption of lipase PS on CNC was studied by monitoring the surface charge and particle size. FT-IR spectra confirmed the successful incorporation of lipase PS and CNC. Compared with CNC, protein-modified CNC had a higher maximum thermal decomposition temperature of 345 °C and lower interfacial tension of 11 mN/m with PCL which provided PCL composites with higher nucleation efficiency and tensile elongation of 1086 % at break. In addition, only 0.67 % embedded lipase PS completely hydrolyzed PCL membranes in <140 h. The post-compression molding at 80–100 °C had negligible influence on the lipase activity, which indicated that CNC could protect the lipase from inactivation in polymer extrusion and compression. This work also highlighted protein-modified CNC as a new technology for polymer reinforcement.
研究领域:
材料科学
·
生物降解材料
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2023
·
IF 6.2
Li-Zhao Huang,Chao-Wen Yang,Kun Song,Ting-Ting Yang,Jia-Zhuang Xu,Guang-Ai Sun,Zhong-Ming Li,Dong Liu
The effects of various fillers on the hierarchical structures and reinforcement of silica filled silicone rubbers were investigated using contrast matching small-angle neutron scattering (SANS) and low-field nuclear magnetic resonance (NMR). Raw (R), modified (M), and grafted (G) surface were designed on colloidal silica particles with sizes of 20 and 80 nm. The reinforcement effects of colloidal silica on silicone rubber were compared with those of industrial (fumed and precipitated) silica. The power-law decay d f,agg of fumed and precipitated filler aggregate were 2.6 and 2.4, respectively, suggesting that the fractal aggregates determined the formation of a connective filler network. The bound rubber (BR) thickness measured via CM-SANS were 8.2, 7.9, and 7.9 nm for 20 nm colloidal silica with G, M, and R surfaces, respectively. NMR results indicated that grafting could promote BR formation, resulting in the highest modulus (3.4 MPa) among those of analyzed samples. All samples had similar D res /2π values (close to 210 Hz) but different σ/ D res values, implying that the aggregate influenced the crosslinking distribution rather than the crosslinking density. Combined with the hierarchical structures and mechanical properties , the synergistic effects of the aggregate and BR networks on the reinforcing performance of silica-filled silicone rubbers have been discussed.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Wen-Jian Zhang,Meng-Xin Fan,Jia-Qing Li,Xiao-Yu Cao,Jian-Chun Jiang,Zi-Xuan Chang,Wei Bai,Ren-Man Zhu,Chun-Yan Hong
Reinforcement of polymeric materials by incorporating rigid nanofillers (especially nanofibers) is a promising strategy, which mainly relies on the elaborate design of nanofillers. Herein, we report an oil-soluble and core-cross-linked fibrous nanofiller with superior comprehensive properties. In situ cross-linking polymerization-induced self-assembly (PISA) in mineral oil is demonstrated to be a powerful strategy for producing oil-soluble nanofibers with excellent reproducibility (100% in 10 repeated experiments). The oil-soluble stabilizer enables good compatibility of the nanofibers with various hydrophobic polymer matrices, and the core-cross-linked structure endows the nanofibers with robust stability to resist the severe processing environment (high temperature and high shearing) of fabricating polymer–nanofiller composites. The nanofibers show superior reinforcement effects on the polymer–nanofiller composites but without the expense of transparency, recyclability, and self-healing ability. With only 1 wt % dosage of the nanofibers, the tensile stress, elongation, and toughness of the polymer–nanofiller composites increased by approximately 2.6, 3.5, and 7.2 times, respectively. The oil-soluble and core-cross-linked nanofibers based on the in situ cross-linking PISA strategy are attractive candidates of nanofillers to reinforce plastics, gels, or elastomers in various industrial applications, which not only have excellent comprehensive performances but also meet the requirements of sustainable development.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 2
·1-12
·
IF 2.8
Liao Yufang,Li Yuqi,Ruan Hong
Designing and developing friction layer materials that are environmentally friendly and recyclable is key to preparing triboelectric nanogenerators (TENG). Herein, a recyclable friction layer material, CFPU-X, has been introduced. This material is dynamically crosslinked through a Diels-Alder reaction between a polyurethane (MPU) containing maleimide groups and carboxylated cellulose nanocrystals with furan groups. The reaction enhanced the cross-linking degree of polyurethane, resulting in a significant increase in tensile strength, with CFPU-15 exhibiting a maximum value of 18.18 MPa, a 761.61% improvement over MPU. Notably, CFPU-9 demonstrated self-toughening properties, possibly attributed to the growth of molecular chains in the same space after heating and redissolution. This resulted in an increase in hydrogen bonding content and a more compact reconfigured crosslinked network, leading to a 145.83% increase in elongation at break. The CFPU-12 TENG is expected to be utilized in medical diagnostics, motion analysis, and health monitoring. This study offers worthy ideas for the development of recyclable materials for high-performance, flexible energy harvesters.
研究领域:
材料科学
·
生物医学工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 11
·2211845
·
IF 19
Chuan Fan,Yong Luo,Meng Tian,Mengyun Zhou,Lirong Wang,Tailin Xu,Xueji Zhang
“Green Synthesis” has been broadly applied in drug synthesis and nanomaterial preparation. The integration of automated micro-synthesis and high-throughput screening systems is a key way to achieve the goal of green manufacturing. Here, a one-click green synthesis platform is designed that integrates droplets arrays-based micro-synthesis for Raman enhancement performance high-throughput screening of MNPs@Cu-MOF (AuNPs@, AgNPs@, PtNPs@Cu-MOF) under room temperature and normal pressure. The fully integrated ultrasound units can achieve rapid multi-component mixing in the droplet array systems, and significantly accelerate materials growth as well as enhance encapsulation of noble metal nanoparticles into Cu-MOF structures. Based on such integrated systems, structures with high Raman enhancement performance can be high-throughput evaluation and easily screened out. The results indicated that the AgNPs@Cu-MOF exhibited the best Raman enhancement performance, which is ≈8 times higher than pure AgNPs. Such a green and integrated platform provides a way for automated multi-type composites fabrication, which can be expanded to multiple fields in the future via combined robotic platforms and artificial intelligence technology.
研究领域:
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2017
·
IF 2.714
Feng Yan,Xinping Zhang,Huihui Ren,Xiaohui Meng,Dong Qiu
The application of patched laponite-polymer composite particles (LCPs) in hydrogel reinforcement has been proposed and such hydrogels (LC hydrogels) were successfully prepared. LCPs can be well dispersed in hydrogel matrix to rather high particle concentration and at the same time, form chemical bonding with polymer matrix through copolymerization of surface C C groups. The obtained LC hydrogels showed more homogeneous microstructure and significantly higher mechanical strength comparing with the hydrogel containing bare laponite or laponite surface modified with C C groups at same particle content. A series of control experiments reveals that both the surface chemistry and patched morphology were essential to produce such good reinforcement performance.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）