1、氧化石墨烯 (GO)对聚偏氟乙烯 (PVDF)膜的改性进展
本文简要介绍了氧化石墨烯 (GO)的特殊性质,制备方法和剥离工艺,在此基础上重点论述了聚偏氟乙烯 (PVDF)膜的制备方法,主要包括烧结法,径迹刻蚀法,拉伸法,浸取法,相转化法,溶胶-凝胶法,分子自组装法等,以及GO对PVDF膜的基本改性和表面改性研究进展.
2、Fabrication of GO modified PVDF membrane for dissolved organic matter
In this study, graphene oxide (GO) layers were successfully grafted onto a polyvinylidene fluoride (PVDF) membrane using chemical activated treatment and layer-by-layer assembly method.
3、GO/TiO 2 纳米复合材料改性PVDF膜的制备及其抗污性能
In order to improve the antifouling performance of polyvinylidene fluoride (PVDF) membrane, GO/TiO 2 /PVDF composite ultrafiltration membrane was prepared by non solvent induced precipitation phase separation method with GO/TiO 2 nanocomposites as additives.
MOF
The structure and morphology of MOF-199@GO and MOF-199@GO modified PVDF polyamide composite membrane are characterized by XRD, SEM, TEM, AFM and zeta potential.
TiO2/GO/PVDF改性复合膜的制备及抗污染性能研究
摘要 用溶胶-凝胶法制得的TiO2经GO修饰,通过SEM、XRD分析表明制得的复合粒子为TiO2、GO的均匀混合物,且TiO2为易分散、粒径均匀的锐钛矿型.将其添加至PVDF铸膜液基体,采用相转换化制备TiO2/GO/PVDF...
氧化石墨烯 (GO)对聚偏氟乙烯 (PVDF)膜的改性进展
本文简要介绍了氧化石墨烯（GO）的特殊性质、制备方法和剥离工艺，在此基础上重点论述了聚偏氟乙烯 (PVDF)膜的制备方法，主要包括烧结法、径迹刻蚀法、拉伸法、浸取法、相转化法、溶胶-凝胶法、分子自组装法等，以及GO对PVDF膜的基本改性和表面改 ...
Preparation of GO@DCN nanocomposite modified PVDF membranes for
In this study, graphene oxide (GO) was combined with nitrogen defect-modified g-C3 N 4 (DCN) nanosheets by grinding to obtain GO@DCN, with subsequent doping into polyvinylidene fluoride (PVDF) by non-solvent induced phase separation (NIPS) to prepare a series of hydrophilic NCMs.
石墨烯改性PVDF复合材料的结构和性能
为了实现PVDF力学性能、导电性、热稳定性的综合改性,以氧化石墨烯 (GO)为填料,通过超声分散和原位还原法制备了不同配比的GNS (石墨烯)/PVDF复合材料...
APTES
能够有效降低氢能运输成本的输氢管道建设是实现氢能应用推广进而实现双碳目标的重要一环,然而氢损伤一直都是威胁钢铁材料的长期服役的一大难题.当钢材长期暴露于氢环境下,氢会渗入钢材内部,在高能位点富集,复合为氢分子,从而导致钢材内部出现氢鼓泡,成为疲劳载荷下的裂纹源,导致钢材的疲劳强度降低,对管道的长期安全服役构成严重威胁.因此需要设计一种廉价,易于施工的有机阻氢涂层用于输氢管道防护,保障输氢管道的长期可靠运行.但是一般的有机涂层为较松散的大分子链段结构,大分子间有一定的孔隙能够被氢原子/分子渗过,需要加入填料进行阻氢改性来实现阻氢功能.本论文基于纳米尺度氢陷阱具有强化材料阻氢性能的现象,选取了 DFT理论计算结果显示具有强吸氢 …
Application and modification of poly(vinylidene fluoride) (PVDF
Poly (vinylidene fluoride) (PVDF) membranes have been extensively applied to scientific research and industrial process due to its outstanding properties such as high thermal stability, good chemical resistance and membrane forming properties.
In the field of modern materials science, polymer modification has always been a research hotspot. Among these, graphene oxide (GO), as a two-dimensional nanomaterial, is widely used in the preparation of various composite materials due to its unique physical and chemical properties. This article explores what GO-modified PVDF resin is, as well as the superior performance and application prospects of this composite material.
I. Overview of GO-Modified PVDF Resin
Polyvinylidene fluoride (PVDF) is a high-performance thermoplastic polymer known for its excellent mechanical strength, chemical resistance, and high electrical insulation properties. PVDF has certain limitations, such as low thermal stability and poor processing performance, which restrict its use in broader applications. To overcome these drawbacks, scientists have proposed an effective method: modifying PVDF by incorporating graphene oxide (GO).
II. Principle of GO-Modified PVDF
Graphene oxide is a two-dimensional material composed of a single layer of carbon atoms arranged in a hexagonal lattice. Its unique properties include an extremely high specific surface area, excellent conductivity, high thermal conductivity, and outstanding mechanical performance. Combining these characteristics with PVDF can significantly enhance the overall performance of the material.
III. Advantages of GO-Modified PVDF
- Enhanced Mechanical Performance: The layered structure of GO effectively disperses stress, improving the tensile and compressive strength of the PVDF matrix.
- Improved Thermal Stability: GO provides an additional thermally stable layer, enabling PVDF to maintain its physical and chemical properties at higher temperatures.
- Optimized Electrical Performance: The conductivity of GO can be combined with PVDF to create composites with good electrical conductivity.
- Enhanced Corrosion Resistance: The high surface area of GO helps form a protective layer, reducing potential chemical corrosion of the PVDF matrix.
- Improved Processing Performance: The presence of GO reduces the melt viscosity of PVDF, enhancing its flowability and molding properties during processing.
IV. Application Prospects of GO-Modified PVDF
- Electronics: Due to its excellent electrical properties, GO-modified PVDF can be used to manufacture high-performance electronic devices, such as flexible displays and solar panels.
- Automotive Industry: As a lightweight and high-strength material, GO-modified PVDF can be applied to automotive components like bumpers and body frames to improve fuel efficiency and reduce weight.
- Energy Storage: With its good thermal stability and conductivity, GO-modified PVDF can be utilized in the development of high-efficiency batteries and supercapacitors.
- Biomedical Applications: Owing to its excellent biocompatibility and biodegradability, GO-modified PVDF can be used to manufacture drug delivery systems and scaffolds for tissue engineering.
Graphene oxide-modified polyvinylidene fluoride (PVDF) resin is a novel high-performance composite material. By leveraging the exceptional properties of graphene oxide, it significantly improves the mechanical, thermal, and electrical performance of the PVDF matrix. This composite material holds immense potential for future applications in many fields, particularly in electronics, automotive, energy storage, and biomedical industries. With ongoing research and technological advancements, it is reasonable to believe that GO-modified PVDF resin will achieve broader applications in the near future.
