RSC Advances
·
2020
·Vol. 10
·期 71
·43523-43532
·
IF 3.119
Wei Gao,Zeng-chao Dang,Fu-sheng Liu,Sheng Wang,Duan-wei Zhang,Meng-xi Yan
Two kinds of double comb-like quaternary ammonium salt polymers P(DPA-EPI) and P(DBA-EPI) with lower polarity were designed and synthesized using epichlorohydrin (EPI), di-n-propylamine (DPA) and di-n-butylamine (DBA) as raw materials. The transparent antistatic epoxy resin coatings were obtained using the two polymers as antistatic agents, respectively. Because P(DPA-EPI) and P(DBA-EPI) with good hygroscopic performance are easily dissolved in epoxy resin paints and are nearly linearly arranged in the epoxy resin paints, the obtained transparent antistatic epoxy resin coatings achieve good antistatic properties. The values of ρs of the coatings reach 5.13 × 108 Ω sq−1 and 2.69 × 108 Ω sq−1, respectively, with a lower addition amount of polymers of only 1.0 wt%. The two antistatic epoxy resin coatings also have good durability. Compared to the epoxy resin coating, with the introduction of P(DPA-EPI) and P(DBA-EPI), the thermal stability and adhesion of the antistatic epoxy resin coatings do not change obviously, but the Rockwell hardness values slightly reduce.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2018
·Vol. 29
·期 6
·1788-1794
·
IF 2.137
Si Chen,Bo Zhou,Meng Ma,Yanqin Shi,Xu Wang
Permanently antistatic and high transparent PMMA terpolymer, P(MMA-co-HPA-co-SPMA), were reported in this paper, providing a new method to significantly improve the antistatic properties of PMMA without sacrificing transparency. 2-Hydroxypropyl acrylate (HPA) was chosen as a kind of compatilizer because of the good compatibility with both methyl methacrylate (MMA) and sulfopropyl methacrylate potassium salt (SPMA), a potential antistatic agent with a strong hydrophilic group. The mechanical and optical properties of P(MMA-co-HPA-co-SPMA) terpolymer barely show any visibly differences compared to PMMA homopolymer, confirmed through Fourier transform infrared, dynamic mechanical analysis, and a haze meter. Furthermore, antistatic property analysis indicates that only a small amount of SPMA can significantly improve the antistatic properties of the obtained PMMA terpolymers. The surface resistivity of the P(MMA-co-HPA-co-SPMA) sheets could be reduced to 10 9 Ω sq −1 order of magnitude, while the SPMA content reached 0.72 wt%. The hydrophilic groups, the hydroxyl and acrylate sulfonate, on the surface contributed to attract the water molecules, which rendered it a reasonably good antistatic property. These selected terpolymers will provide more opportunities to develop high-performance and antistatic products made from PMMA materials.
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
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2018
·
IF 2.829
Jiahao Ren,Lan Zheng,Yuqi Wang,Xiyu Zang,Jinqiao Wu,Yijun Yue,Xiaolong Han,Le Wu
To improve the diesel conductivity and avoid the electrostatic spark explosion/fire accidents, a series of room temperature ionic liquids (ILs) were synthetized by four kinds of long-chain alkyl quaternary ammonium salt (DTAC, TTAC, HTAC and STAC) and n-butyl naphthenate sulfonic acid using ultrasound method, which were added into the diesel as antistatic agents . Nuclear magnetic resonance spectrum (NMR), Fourier transform infrared spectrometer (FT-IR), thermogravimetric analysis (TGA) and element analysis (EA) were employed to characterize the structures and properties of the ILs, confirming the successful synthesis of the ILs. Experimental results indicated that the prepared ILs can significantly improve the diesel antistatic ability even at ppm level, while the ILs showed an acceptable effect on the diesel combustion performance. The mechanisms of action were also clarified and discussed based on the reverse micelles (RM) microstructures and physicochemical properties of the synthesized ILs. It should be noted that the new diesel antistatic agents have a few features such as high efficiency, lasting effects, mild reaction conditions and low cost, which is bound to have broad application prospect for diesel antistatic accordingly.
研究领域:
化学工程
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 27
·e55589
·
IF 2.7
Yaqin Zhao,Yangdong Liu,Haoning Zhao,Zhenbin Chen
In this paper, a novel polymeric antistatic agent, TMQ, with excellent antistatic properties, low cost, and good compatibility with polypropylene (PP), was prepared from isopentenyl polyoxyethylene ether (TPEG), maleic anhydride (MAH) and homemade quaternary ammonium salt (QAS). The structure is characterized using FTIR and 1 H NMR. How the addition of TMQ and the molar ratio of TPEG, QAS, and MAH affect the antistatic, mechanical, and crystalline properties of PP are investigated. The results show that as the feed ratio of TPEG, MAH and QAS is TPEG:MAH:QAS = 1:8:8, the modified PP displays the best overall performances. Further exploring finds out when TMQ is added at 15 wt%, the surface resistivity of PP reduces to 6.78 × 10 9 Ω/sq and the volume resistivity of PP reduces to 7.9 × 10 9 Ω cm −1 , the notched impact strength and melt index improve by 357% and 991%, respectively, while the tensile strength decreases by 38.6% compared with that of pure PP. Besides, the crystal study shows after TMQ is added, the crystallinity of PP reduces, the melt peak temperature remains essentially unchanged, and the crystallization peak temperature increases slightly. The material has excellent antistatic resistance to washing and durability, and the changes in relative humidity have little effect on its antistatic properties.
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
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 5
·2210-2218
·
IF 2.7
Zhaoshun Zhan,Qixing Shi,Lei Wang,Jinfeng Shen,Tianyou Bao,Lixin Li,Fanna Meng
To improve the safety and broaden the application scope of polyurethane in coal mines, a dual-functional DOPO/MA/Mel@NC (DMM@NC) composite with flame retardancy and antistatic properties was designed and synthesized via in situ polymerization followed by introduction into polyurethane with a loading amount of 25 wt%, which considerably enabled flame retardancy, antistatic properties, thermal stability, and combustion performance of the polyurethane. By investigating the chemical composition and microscopic morphology of gaseous pyrolysis products and condensed-phase residues of DMM@NC it was found that the residues contain phosphorus-containing compounds, which promote the carbonification and are beneficial to improve the flame retardancy of polyurethane through a condensed-phase flame-retardant mechanism. Consequently, the dual-functional DMM@NC composite with distinguished flame retardancy and antistatic properties is beneficial to improve the safety of polyurethane in coal mines thus expanding its application range.
研究领域:
材料科学
·
安全工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2597-2609
·
IF 4.682
Zhai Wangyi,Cao Yuanming,Li Yifei,Zheng Min,Wang Zuoshan
The exploration of novel and multifunctional coatings through composite nanomaterials design is crucial for developing next-generation polyester fabrics. Herein, we report an efficient approach of self-assembling MoO 3– x QDs on MXene (Ti 3 C 2 T x ) to fabricate multifunctional polyester fabrics. In a typical preparation, MoO 3– x QDs with an average size of 5 nm were uniformly distributed on the surface of MXene nanoflakes upon UV light. Then, polyester fabrics were coated with MoO 3– x QDs/MXene by dipping. The results demonstrated that the coated fabric had a decreasing trend in the electrostatic half-period from more than 60 s (untreated fabric) to 0.15 s and had excellent washing fastness. In addition, a similar phenomenon was found in smoke suppression, with the coated fabric producing 36.16% less smoke. More importantly, the sterilization rate of the coated fabric had reached 99% to E. coli and S. aureus under sunlight owing to the strong response of MoO 3– x QDs/MXene. This work provides a novel and facile strategy to design multifunctional coatings.
研究领域:
材料科学
·
纺织工程
·
纳米技术
✓ 已验证
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
·
2022
·
IF 2.455
Weini Jia,Yiqing Yao,Jianmin Guo,Xiaoli Zhang,Zhijie Liang
Surface modification of polypropylene is performed in this work by enzyme-catalyzed post-processing strategy. The polyDOPA was synthesized by in-situ polymerization in the present of laccase and deposited on the polypropylene surface. The effect of various process variables namely processing step, pH, time, and temperature is studied at various levels. The results show that one-bath and one-step method is the optimal mode. Various functional groups incorporated to the polymer surface are confirmed by attenuated total reflectance-Fourier-transform infrared spectroscopy. The effect of process variables on surface morphology of polymers is evaluated by scanning electron microscopy, revealing that the surface of the polypropylene is covered with thin burrs, and these are regarded as polyDOPA adhered after treatment. Furthermore, the electrostatic charge decay time and contact angle as well as capillary wetting measurements of the modified polypropylene are 0.61 s and 75.33°, respectively, indicating its fine anti-static electricity and better wettability. Besides, this material shows dark gray colors and exhibits excellent ultraviolet-resistance performance. Interestingly, the modification process nearly has no influences on the mechanical property.
研究领域:
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Ting Wang,Heyi Ge,Kaili Zhang
A novel antistatic anticorrosion composite coating was designed. The conductive core-shell straticulate structured silica@graphene and antimony doped tin oxide (ATO) were introduced in the waterborne epoxy coating to significantly decrease electrical resistivity. Reduced graphene oxide (RGO)-encapsulated functionalized silica hybrids (f-SiO 2 @RGO) were fabricated from sodium borohydride reduction of electrostatically assembled f-SiO 2 @GO hybrids with the help of silane coupling agent. The morphologies, the corrosion resistance and the antistatic properties were investigated. In the ATO + f-SiO 2 @RGO/epoxy coating, the f-SiO 2 @RGO sheets were evenly dispersed in coating, forming unique core-shell straticulate structure that effectively prevented the penetration of electrolyte, and constructed a conductive network at the coating-tinplate. The results showed that the antistatic and the anticorrosive performances of ATO + f-SiO 2 @RGO/epoxy coating were significantly enhanced as compared with the addition of 5% other fillers in coating, which includes the same amount of ATO. This superior core-shell f-SiO 2 @RGO straticulate structure and ATO particles, with their prominent conductivity , can make full use of the enhancement effect of different components and thus endow waterborne epoxy coatings with outstanding corrosion resistance and antistatic properties overall.
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
RSC Advances
·
2021
·Vol. 11
·期 24
·14730-14736
·
IF 3.361
Jing Li,Fengmei Cheng,Haidong Li,Hongwen Zhang,Gang Wang,Daocheng Pan
Silver nanowire (AgNW) networks play an important role in the transparent conductive electrodes or antistatic coatings. In this work, we describe a facile two-step method to fabricate AgNWs/Zn2SnO4 composite films. Long AgNWs with a high aspect ratio were prepared through a modified polyol method, in which the organic octylamine hydrochloride rather than the commonly used inorganic chlorides was used as the shape-controlling agent. The AgNW networks were fabricated on the glass substrate, on which the Zn2SnO4 film was deposited, forming robust AgNWs/Zn2SnO4 composite films. The as-prepared composite films have strong adhesion, high thermal stability, low sheet resistance (5–15 ohm sq−1) and high light transmittance (85–80%), indicating a promising application prospect for transparent conductive electrodes and antistatic coatings.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Yuxiao Zhao,Yong Gao,Jinxue Cheng,Wenqi Cui,Yuchuan Liu,Tian Jiang,Zhi Fan,Jing Cui,Minjie Guo
Polyimide (PI) materials with excellent mechanical properties, chemical resistance and thermal stability were attractive candidates for the defense, aerospace and microelectronics industries. However, the antistatic and hygroscopic properties of PI materials need to be further improved in these industries. In this work, 2,2′-bistrifluoromethoxy-biphenyl-4,4′-diamine (TFMOB) containing trifluoromethoxy (−OCF 3 ) groups as the diamine monomer of PI, 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA) as the dianhydride monomer of PI and dodecyl benzene sulphonic acid doped polyaniline (DBSA-PANI) as the antistatic agent, and a series of polyimide/polyaniline composite nanofiber membranes (PI/PANI-CNFMs) were prepared via electrospinning. The hygroscopicity of PI/PANI-CNFMs was 0.96 − 1.36 %, lower than that of most reported PI nanofiber membranes. Among these nanofiber membranes, the volume resistivity of 90PI/10PANI-CNFM was 5.58 × 10 8 Ω·cm, which met the standard for antistatic materials (10 6 − 10 9 Ω·cm). Meanwhile, PI/PANI-CNFMs also showed low dielectric constant of 1.65 − 1.92, high limiting oxygen index (LOI) value of 30.8 − 40.1 % and low thermal conductivity of 0.143 − 0.086 W·m −1 ·K −1 , indicating that they had a promising potential for applications in the defense, aerospace, and microelectronics industries.
研究领域:
材料科学
·
航空航天工程
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 5
·1183
·
IF 3.1
Ying Qiu,Caili Wang,Chunxue Zhao,Guoxin Yao,Zhixue Wang,Runquan Yang
As a common coal-based solid waste, fly ash is widely used in material filling. However, due to the high resistivity of fly ash itself, the antistatic performance of the filling material is poor. Therefore, antistatic composite powder was prepared by coating nano-sized antimony-doped tin oxide (ATO) on the surface of fly ash, and its preparation mechanism was discussed. The composite powders were characterized by SEM, EDS, XRD and FTIR. The results show that the interaction between SiO2and SnO2appears at the wave number of 727.12 cm−1, and the obvious SnO2crystal phase appears on the surface of fly ash. The volume resistivity of calcined fly ash is 1.72 × 1012Ω·cm, and the volume resistivity of ATO fly ash is reduced to 6 × 103Ω·cm. By analyzing the limiting oxygen index, melt index, tensile strength, elongation at break, cross-section morphology and surface electrical resistivity of EVA, it was found that the addition of antistatic powder to EVA can improve its antistatic performance without deteriorating the mechanical properties of EVA.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2024
·Vol. 31
·期 12
·1-12
·
IF 2.6
Cui Yi-hua,Zhang Chen-ming,Lin Jian-feng,Lin Shi-ping
By free radical polymerizing methylacrylylethyl trimethyl ammonium chloride (DMC), styrene (ST), and methoxy polyethylene glycol acrylate (MPEGA), a novel type of hydrophilic polymer antistatic agent (PDSM) was created. By utilizing FT-IR and 1 H NMR, the structure and properties of the PDSM copolymer were investigated. By using the melt blending approach, composites made of ABS (acrylonitrile-styrene-butadiene copolymer)/PDSM were generated. The composites’ mechanical characteristics and surface resistivity were measured. The results indicated that PDSM was evenly dispersed on the inner surface of ABS resin, resulting in a continuous conductive network, and serving the intended function of long-lasting antistatic. The surface resistance of ABS composites could be greatly decreased using the PDSM copolymer antistatic agent. Surface resistivity of ABS/PDSM composites were around 10 9 -10 10 Ω when the proportion of PDSM copolymer was up to 15 wt%. As MPEGA concentration increased, the surface resistivity of ABS/PDSM materials declined because MPEGA comprised hydrophilic ether bonds and flexible side chains.
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
危险品化学品经营许可证（带存储）