POLYMER ENGINEERING AND SCIENCE
·
2024
·Vol. 64
·期 7
·3289-3302
·
IF 3.2
Xian Wang,Zehan Zhang,Feng Gao,Xuelian He
Surface chemical grafting modifications of carbon fibers (CFs) using 5-(triethoxysilyl)norbornene (TOS), norbornene carboxylic acid tert-butyl ester (NB-TBE), and 5-norbornene-2,3-dicarboxylic anhydride (NA) improved interfacial interactions between CFs and poly(dicyclopentadiene) (PDCPD) resin. The ring-opening metathesis polymerization (ROMP) of DCPD, catalyzed by Grubbs catalyst II, enabled the fabrication of PDCPD/CF layered composite materials with resin and fibers tightly adhered. The optimal composite exhibited remarkable mechanical properties, with a tensile strength of 654.6 MPa and flexural strength of 510.7 MPa. Excellent thermal stability with a maximum weight loss rate in temperatures above 450°C and good chemical resistance with a weight change of about 1% in both acidic and alkaline media highlight the promising potential of these materials for use in harsh environments. The simple yet efficient approach of TOS, NB-TBE, and NA-enhanced layered CF shows great promise as advanced composite materials for industrial applications. Highlights Norbornene derivatives such as TOS, NB-TBE, and NA are suitable modifiers for CF. ROMP of DCPD and norbornene group onto CFs, fabrication of PDCPD/CF composite materials. The composite exhibited remarkable interfacial adhesion and mechanical properties.
研究领域:
材料科学
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复合材料
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Ying Xi,Danbo Qian,Weiwei Dong,An Zhu,Junlong Peng,Wenhao Hong,Shigen Zhu,Yilan Luo,Yunfeng Bai,Jinhui Fan
With the increasing demand for deep-sea exploration and underwater operations, the development of high-performance submersible fabrics has emerged as a critical focus within the field of functional textiles. In this study, the silane coupling agent KH550 was employed to modify the surface of hollow glass microspheres (HGM). A composite coating with waterproof and thermal insulation properties was fabricated on nylon fabric by laminating a waterborne polyurethane (WPU) matrix incorporating hollow glass microspheres (HGM) as thermally insulating fillers. The effects of surface modification of the HGM on properties of the composite coating were investigated. The results demonstrate that modification increased the thermal conductivity of the composite coating from 0.052 W/(m·K) to 0.065 W/(m·K) at a filler content of 20 wt%. This increase arises from strengthened interfacial adhesion between modified HGM and the WPU matrix, which reduces porosity within the coating. The water contact angle of the composite coating increased after modification, reaching 112.9° when the filler content was 20 wt%, which is 15.6° higher than that of the unmodified counterpart. This can be attributed to hydrophobic amino groups on the modified HGM surface and the formation of micro-nano rough structures. The flexibility of the composite coating was significantly enhanced after modification. The elongation at break reached 303% when the filler content was 20 wt%, which is 191.35% higher than that of the unmodified counterpart. This indicates that the interface optimization effectively delays the onset of brittle fracture. This approach not only expands the application of HGM as a thermal insulation filler, but also contributes significantly to improving diving suit materials.
研究领域:
材料科学
·
高分子科学
·
纺织工程
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Lijuan Chen,Zhixin Jia,Xiaohui Guo,Bangchao Zhong,Yongjun Chen,Yuanfang Luo,Demin Jia
A novel functional rubber vulcanizator, halloysite nanotubes (HNTs) supported sulfur monochloride (HNTs-s-S) is prepared by chemically bonding sulfur monochloride (S 2 Cl 2 ) onto HNTs surface. Through this chemical reaction, high concentration of sulfur is supported onto HNTs inner and outer surface. Meanwhile, the functional nanotubes can not only vulcanize the rubber without sulfur and show the lower activation energy of vulcanization reaction, but also improve the filler-rubber interaction as a modifier due to the improved modification effect. Furthermore, the immobilized polymer layer and crosslinking density of rubber composites together indicate that this novel vulcanizing agent HNTs-s-S gives rise to significant improvement in the rubber-filler interfacial adhesion, which is on account of the promoted vulcanizing on the functional HNTs surface with the supported sulfur. After endowing the tubular nanofillers with vulcanized function, it may offer new scientific and technological opportunities for the preparation of high performance elastomer composites.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2018
·
IF 5.16
Xin Huang,Zhong Huang,Jian-Cheng Lai,Lei Li,Guang-Cheng Yang,Cheng-Hui Li
Polymer-bonded explosives (PBXs) are often subjected to different external environmental conditions with various temperature and humidity during long-term storage, transportation, and usage process. The change in temperature and humidity will result in PBXs cracks formation and cause higher risk of explosion evolution when undergoing various stimulus including impact or friction. Herein, a self-healing polymer binder is developed to solve this problem. The fluoropolymer gel binder, a PVDF-co-HFP (copolymer of CH 2 -CF 2 and CF 2 -CF(CF 3 ))/EMIOTf (1-ethyl-3-methylimidazolium trifluoromethanesulfonate)/graphene ternary composite, has high density, high thermal conductivity , excellent interfacial adhesion property, and exhibits self-healing ability at room temperature. Highly filled PBXs composites with 95% of explosive 2, 6-diamino-3, 5-dinitropyrazine-1-oxide (LLM-105) and 5% of ternary composite are fabricated. The as-prepared PBX samples have high denotation parameter (7800 m s −1 ), low impact sensitivities (11–12 J), and low friction sensitivity (no sparks was observed even at friction energy load of 0.36 N). More importantly, our PBXs have effective crack healing ability within 48 h at room temperature. Therefore, the stability and safety of PBXs are improved through the self-healing polymer binder. Such PBXs can find widespread application in various military and civil fields.
研究领域:
材料科学
·
爆炸物工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·
IF 27.4
Yuzheng Shao,Guoli Du,Bin Luo,Tao Liu,Jiamin Zhao,Song Zhang,Jinlong Wang,Mingchao Chi,Chenchen Cai,Yanhua Liu,Xiangjiang Meng,Zhaomeng Liu,Shuangfei Wang,Shuangxi Nie
Electronic waste is a growing threat to the global environment and human health, raising particular concerns. Triboelectric devices synthesized from sustainable and degradable materials are a promising electronic alternative, but the mechanical mismatch at the interface between the polymer substrate and the electrodes remains unresolved in practical applications. This study uses the sulfhydryl silanization reaction and the chemical selectivity and site specificity of the thiol–disulfide exchange reaction in dynamic covalent chemistry to prepare a tough monolithic-integrated triboelectric bioplastic. The stress is dissipated by covalent bond adaptation to the interface interaction, which makes the polymer dielectric layer to the conductive layer have a good interface adhesion effect (220.55 kPa). The interfacial interlocking of the polymer substrate with the conductive layer gives the triboelectric bioplastic excellent tensile strength (87.4 MPa) and fracture toughness (33.3 MJ m −3 ). Even when subjected to a tension force of 10 000 times its weight, it still maintains a stable triboelectric output with no visible cracks. This study provides new insights into the design of reliable and environmentally friendly self-powered devices, which is significant for the development of flexible wearable electronics.
研究领域:
材料科学
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环境科学
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柔性电子
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemistrySelect
·
2023
·Vol. 8
·期 30
·e202300863
·
IF 2.1
Xiaoling Chen,Guanhua Wang,Tian Wang,Caixin Shi
Graphical A tannic acid-rich polyaniline conductive hydrogel with good adhesion as well as tensile properties (elongation at break of 903 %) was prepared by a simple in situ polymerization method, the assembled flexible supercapacitors exhibited tough interfacial contact properties, and provided a volume capacitance of 570 mF cm −3 . Hydrogels that combine electrical conductivity, mechanical and self-adhesion properties have attracted considerable interest because of their promising applications in wearable devices and flexible supercapacitors, among others. However, the weak interfacial adhesion between adjacent layers of flexible supercapacitors limits their practical applications. In this work, mussel-inspired nanocomposite hydrogels composed of tannic acid (TA)-modified doped polyaniline (PANI) and functional monomer acrylamide (AAm) were prepared, the hydrogel exhibited good mechanical properties (903 % strain at break) and adhesion properties. In a three-electrode system the hydrogel exhibited a specific capacitance of 851.1 mF cm −2 (at 1 mA cm −2 ) and good stability. All-hydrogel supercapacitors with robust interfacial capabilities were assembled on this basis without additional immobilization. The flexible supercapacitors show favorable electrochemical performance (570 mF cm −3 at 1 mA cm −2 ) and provide a volume energy density 55.9 μWh cm −3 and a capacitance retention of 85.6 % after 2000 cycles. Compared with previous conductive hydrogels, this work will provide a new approach to fabricate nanocomposite hydrogels with self-adhesive, robust mechanical properties and conductive performance, effectively improving the interfacial adhesion of integrated supercapacitors and expanding the application scope of flexible supercapacitors.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2023
·
IF 5.2
Ruiyin Liu,Zepei Yan,Ming Liu,Hanbing Lu,Xiaoyun Han,Luyao Su,Shugao Zhao,He Wang
Considering the toxicity of traditional resorcinol-formaldehyde-latex (RFL) dipping solution used to prepare fiber- reinforced rubber composites, a novel eco-friendly dopamine (DA)-supported dipping system was developed in this study. Based on the interactions between DA, glycerol triglycidyl ether (GTE), and m -xylylenediamine (MXDA), the dipping solution successfully coated the surface of the nylon-66 (PA66), and the resulting GTE/DA/MXDA/latex-treated PA66 (PA66-GDML) possessed better thermal stability than untreated PA66. The interfacial adhesion between PA66 and neoprene was significantly improved by using the appropriate interfacial layer and the synergistic effect during co-vulcanization. The adhesive strength between PA66-GDML and neoprene was comparable to that obtained in an RFL system, especially when the ratio of GTE/DA/MXDA was 5:1:2. Highlights An eco-friendly dopamine-supported dipping system was developed. The dipping solution (GTE/DA/MXDA) could successfully coat nylon 66 fibers. Treated nylon 66 possessed better thermal stability than untreated nylon 66. The adhesive strength was comparable to that obtained in a RFL system. The new dipping system shows great potential to replace RFL system.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Ziqiao Yan,Xiujuan Wei,Wenwei Zhang,Lin Xu,Jie Zhang,Shuxing Wu,Kai-Hang Ye,Zeheng Li,Zhan Lin,Jun Lu
The rapid capacity decay of microsized SiO x anode resulting from large volume change hinders its commercial application. Herein, a polymer binder with strong interfacial adhesion and high stress dissipation is designed to alleviate the volume change of microsized SiO x anode and maintain structural integrity of electrode. The density functional theory calculations (DFT) and X-ray photoelectron spectroscopy (XPS) reveal that the multifunctional polymeric network enhances interfacial contact between the binder and silicon oxide (SiO x ) particles through gradient hydrogen bonds. Additionally, the designed binder exhibits high mechanical strength and self-healing function via the synergy of supramolecular and covalent chemistry. The designed binder enables SiO x electrodes to exhibit notable cycling stability and superior rate performances. This work provides valuable insights into the structure-function relationship of binder for high-capacity SiO x anodes.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Weiwei Xiong,Hongliang Liu,Yahong Zhou,Yi Ding,Xiqi Zhang,Lei Jiang
To find a general strategy to realize confinement of the conductive layer for high-performance flexible electrodes, with improved interfacial adhesion and high conductivity, is of important scientific significance. In this work, superwettability-induced confined reaction is used to fabricate high-performance flexible Ag/polymer electrodes, showing significantly improved silver conversion efficiency and interfacial adhesion. The as-prepared flexible electrodes by superhydrophilic polymeric surface under oil are highly conductive with an order of magnitude higher than the Ag/polymer electrodes obtained from original polymeric surface. The high conductivity achieved via superhydrophilic confinement is ascribed to the fact that the superhydrophilic polymeric surface can enhance the reaction rate of silver deposition and reduce the size of silver nanoparticles to achieve the densest packing. This new approach will provide a simple method to fabricate flexible and highly conductive Ag/polymer electrodes with excellent adhesion between the conductive layer and the substrate, and can be extended to other metal/polymeric electrodes or alloy/polymeric electrodes.
研究领域:
材料科学
·
表面化学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER TESTING
·
2019
·
IF 2.943
Xuan Yang,Qunzhang Tu,Xinmin Shen,Chengming Jiang,Ming Pan,Pengxiao Zhu,Yi Li,Caibing Hu,Qiong Zhang
In order to improve the interfacial adhesion between aramid fiber (AF) and rubber matrix, the mercapto hyperbranched polysiloxane (HPSi) was grafted onto the AFs via a novel in-situ growth strategy, which combines the formation of polydopamine (PDA) precursor layer and the co-dehydration condensation between (3-aminopropyl) trimethoxysilane and (3-mercaptopropyl) trimethoxysilane. Based on the results of characterizations including morphology observations and chemical structure analyses, the growth process of mercapto HPSi with the reaction time was investigated and discussed. The pull-out force tests of AFs/rubber composites, which were carried out by universal testing machine, showed that the modification strategy proposed in this study could increase the interfacial adhesion up to approximately 96.5%, and the key factor could be inferred to be the covalent interaction between mercapto groups and double bonds. It is also worth mentioning that the phenomenon of excessive surface modification will occur with the overlong growth time, which would result in the reduction of the interfacial adhesion.
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
Nature Communications
·
2022
·Vol. 13
·期 1
·1-8
·
IF 17.694
Liu Xiao,Wu Jingping,Qiao Keke,Liu Guohan,Wang Zhengjin,Lu Tongqing,Suo Zhigang,Hu Jian
Many living tissues achieve functions through architected constituents with strong adhesion. An Achilles tendon, for example, transmits force, elastically and repeatedly, from a muscle to a bone through staggered alignment of stiff collagen fibrils in a soft proteoglycan matrix. The collagen fibrils align orderly and adhere to the proteoglycan strongly. However, synthesizing architected materials with strong adhesion has been challenging. Here we fabricate architected polymer networks by sequential polymerization and photolithography, and attain adherent interface by topological entanglement. We fabricate tendon-inspired hydrogels by embedding hard blocks in topological entanglement with a soft matrix. The staggered architecture and strong adhesion enable high elastic limit strain and high toughness simultaneously. This combination of attributes is commonly desired in applications, but rarely achieved in synthetic materials. We further demonstrate architected polymer networks of various geometric patterns and material combinations to show the potential for expanding the space of material properties.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Feibo Li,Zhaoshuo Wang,Ping Li,Yanming Wang,Zhixiao Zhang,Xiying Fu,Zongqi Li,Junxian Hou,Huanjun Li
Hydrogel actuators with fast responsive speed, large driving power, diverse motions, superior mechanical properties and good environmental adaptability could be a suitable candidate for complex-task scenarios. However, a complete aggregation of these above characteristics is rarely reported, due to limitations from processing methods, raw materials and structural configuration of present hydrogel actuators. Herein we designed and fabricated complex-chamber-structure hydrogel actuators basing on soft interfacial adhesion of aluminum hydroxide nanocomposite hydrogels without any mold, template and valuable equipment, demonstrating that this method possessed simple, facile and inexpensive features. These composite hydrogels showed high tensile (0.5–1.0 MPa) and compressive (2–15 MPa) resistance properties, much higher than those of previously reported fluid-driven hydrogel actuators, which meant that our hydrogel actuators could have a higher cargo loading capacity. The cavity-structure soft actuators owned superior sealability and self-recoverability, and could give rapid uniaxial expansion and multidirectional large-scale bending under fluid actuation . Furthermore, those actuators with sucker structure were able to transfer heavy objects (e.g. 80 g glass plate and 180 g billiard ball) from water to air, and also move a plastic plate from back to right in three-dimensional space, indicating that this complex-cavity hydrogel actuators could suit to multi-task scenarios. The exquisitely assembled process of intricate chamber structure will offer a novel approach for hydrogel actuators with diversified driving functions.
研究领域:
材料科学
·
软体机器人
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）