A composite filtration membrane based on polyethersulfone and glass fibers
Patent Information
- Application Number
- CN202522047782.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0007]本实用新型的目的在于提供一种基于聚醚砜与玻璃纤维的复合过滤膜，该复合过滤膜解决了现有过滤膜机械强度不足、过滤精度有限和耐久性不佳的问题；通过多层纳米纤维叠加与表面改性，实现高强度、耐腐蚀、过滤精度可控的综合性能
[0012]本实用新型的基于聚醚砜与玻璃纤维的复合过滤膜，通过聚醚砜层和玻璃纤维层复合，以保证结构强度和耐腐蚀性；在聚醚砜层和玻璃纤维层之间还连接有多个碳纳米管，以增强机械性能并提高抗菌性；表面设置有化学镀层改善膜的亲水性，减少污染物吸附，延长使用寿命；利用静电纺丝技术制备纳米纤维层，精确控制纤维直径与孔隙分布；采用分层堆叠工艺，实现孔径分级的多层过滤结构；复合过滤膜表面通过化学镀层，改善膜的亲水性，减少污染物吸附；通过玻璃纤维层大幅提升整体抗拉伸和抗冲击性能；多层分级纳米纤维结构实现精准过滤，同时保持较高流量；抗腐蚀与抗污染能力强，使用寿命延长，维护需求降低。
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Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter membrane technology, and more specifically, to a composite filter membrane based on polyethersulfone and glass fiber. Background Technology
[0002] Most existing filter membranes are based on a single polymer material, such as polyethersulfone (PES) membranes, which are widely used due to their heat resistance and chemical stability. However, single PES membranes generally suffer from insufficient mechanical strength and limited durability, and are prone to failure under long-term or harsh conditions (such as high temperature and highly corrosive environments). On the other hand, glass fiber materials have high strength and good corrosion resistance, but it is difficult to meet the requirements of high-precision filtration when used alone.
[0003] Currently, existing technologies have the following drawbacks:
[0004] 1. Single PES membranes have insufficient tensile and impact resistance;
[0005] 2. The filtration accuracy of a single glass fiber structure is limited.
[0006] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content
[0007] The purpose of this invention is to provide a composite filter membrane based on polyethersulfone and glass fiber. This composite filter membrane solves the problems of insufficient mechanical strength, limited filtration accuracy and poor durability of existing filter membranes. Through the superposition of multiple nanofibers and surface modification, it achieves comprehensive performance of high strength, corrosion resistance and controllable filtration accuracy.
[0008] This invention provides a composite filter membrane based on polyethersulfone and glass fiber, comprising a polyethersulfone layer, a glass fiber layer, carbon nanotubes, and a chemical plating layer; the lower part of the glass fiber layer and the upper part of the polyethersulfone layer are connected, and a plurality of carbon nanotubes are connected between the glass fiber layer and the polyethersulfone layer; the chemical plating layer is also disposed on the outer surface of the polyethersulfone layer and the glass fiber layer.
[0009] The above technical solution uses a composite of polyethersulfone and glass fiber layers to ensure structural strength and corrosion resistance. Multiple carbon nanotubes are also connected between the polyethersulfone and glass fiber layers to enhance mechanical properties and improve antibacterial properties. A chemical coating is applied to the surface to improve the hydrophilicity of the membrane, reduce pollutant adsorption, and extend its service life.
[0010] Furthermore, alumina nanofibers are also connected between the glass fiber layer and the polyethersulfone layer.
[0011] Furthermore, a first wavy surface is provided below the glass fiber layer, and a second wavy surface that mates with the wavy surface is provided above the polyethersulfone layer, with the first wavy surface connected to the second wavy surface.
[0012] This invention relates to a composite filter membrane based on polyethersulfone and glass fiber. The composite structure, consisting of a polyethersulfone layer and a glass fiber layer, ensures structural strength and corrosion resistance. Multiple carbon nanotubes are connected between the polyethersulfone and glass fiber layers to enhance mechanical properties and improve antibacterial activity. A chemically coated surface improves the membrane's hydrophilicity, reduces pollutant adsorption, and extends its service life. The nanofiber layer is prepared using electrospinning technology, precisely controlling fiber diameter and pore size distribution. A layered stacking process achieves a multi-layered filtration structure with graded pore sizes. The chemically coated surface of the composite filter membrane further improves its hydrophilicity and reduces pollutant adsorption. The glass fiber layer significantly enhances the overall tensile and impact resistance. The multi-layered, graded nanofiber structure enables precise filtration while maintaining high flow rates. It exhibits strong corrosion and contamination resistance, extended service life, and reduced maintenance requirements. Attached Figure Description
[0013] Figure 1 A schematic diagram of the cross-sectional structure of a composite filter membrane based on polyethersulfone and glass fiber provided in an embodiment of this utility model.
[0014] Figure 2 for Figure 1 Another cross-sectional schematic diagram of a composite filter membrane based on polyethersulfone and glass fiber.
[0015] The reference numerals and components involved in the accompanying drawings are shown below:
[0016] 100. Polyethersulfone layer
[0017] 200. Fiberglass layer
[0018] 300, carbon nanotubes
[0019] 400. Chemical plating
[0020] 500, First Wave
[0021] 600, Second Wave Surface Detailed Implementation
[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0023] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0024] Example 1
[0025] Figure 1 This is a schematic cross-sectional view of the composite filter membrane based on polyethersulfone and glass fiber provided in an embodiment of the present invention. Please refer to... Figure 1 The composite filter membrane based on polyethersulfone and glass fiber provided in this embodiment of the present invention includes a polyethersulfone layer 100, a glass fiber layer 200, carbon nanotubes 300, and a chemical plating layer 400; the lower part of the glass fiber layer 200 is connected to the upper part of the polyethersulfone layer 100, and a plurality of carbon nanotubes 300 are also connected between the glass fiber layer 200 and the polyethersulfone layer 100; the chemical plating layer 400 is also disposed on the outer surface of the polyethersulfone layer 100 and the glass fiber layer 200.
[0026] It should be noted that this invention uses a composite of a polyethersulfone layer 100 and a glass fiber layer 200 to ensure structural strength and corrosion resistance; multiple carbon nanotubes 300 are also connected between the polyethersulfone layer 100 and the glass fiber layer 200 to enhance mechanical properties and improve antibacterial properties; a chemical plating layer 400 is provided on the surface to improve the hydrophilicity of the membrane, reduce pollutant adsorption, and extend service life.
[0027] The manufacturing process of this composite filter membrane is as follows: a nanofiber layer is prepared using electrospinning technology to precisely control the fiber diameter and pore distribution; a layered stacking process is adopted to achieve a multi-layered filtration structure with graded pore sizes; and a chemically coated 400 layer is applied to the surface of the composite filter membrane to improve the membrane's hydrophilicity and reduce pollutant adsorption.
[0028] The composite filter membrane of this invention significantly improves the overall tensile and impact resistance through the glass fiber layer 200; the multi-layer hierarchical nanofiber structure achieves precise filtration while maintaining a high flow rate; it has strong corrosion and pollution resistance, extends service life, and reduces maintenance requirements.
[0029] Furthermore, the present invention also incorporates alumina nanofibers between the glass fiber layer 200 and the polyethersulfone layer 100.
[0030] Figure 2 for Figure 1 Another cross-sectional schematic diagram of the composite filter membrane based on polyethersulfone and glass fiber. Please refer to... Figure 2The present invention provides a first wavy surface 500 below the glass fiber layer 200 and a second wavy surface 600 that cooperates with the wavy surface above the polyethersulfone layer 100, with the first wavy surface 500 connected to the second wavy surface 600.
[0031] It should be noted that the design of the first wave surface 500 and the second wave surface 600 increases the connection area and improves the connection strength.
[0032] As can be seen from the above description, the advantages of this utility model are:
[0033] This invention relates to a composite filter membrane based on polyethersulfone and glass fiber. The composite structure, consisting of a polyethersulfone layer and a glass fiber layer, ensures structural strength and corrosion resistance. Multiple carbon nanotubes are connected between the polyethersulfone and glass fiber layers to enhance mechanical properties and improve antibacterial activity. A chemically coated surface improves the membrane's hydrophilicity, reduces pollutant adsorption, and extends its service life. The nanofiber layer is prepared using electrospinning technology, precisely controlling fiber diameter and pore size distribution. A layered stacking process achieves a multi-layered filtration structure with graded pore sizes. The chemically coated surface of the composite filter membrane further improves its hydrophilicity and reduces pollutant adsorption. The glass fiber layer significantly enhances the overall tensile and impact resistance. The multi-layered, graded nanofiber structure enables precise filtration while maintaining high flow rates. It exhibits strong corrosion and contamination resistance, extended service life, and reduced maintenance requirements.
[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A composite filtration membrane based on polyethersulfone and glass fibers, characterized in that, It includes a polyethersulfone layer (100), a glass fiber layer (200), carbon nanotubes (300), and a chemical plating layer (400); The glass fiber layer (200) is connected to the bottom and the polyethersulfone layer (100) to the top, and a plurality of carbon nanotubes (300) are also connected between the glass fiber layer (200) and the polyethersulfone layer (100). The chemical plating layer (400) is also provided on the outer surface of the polyethersulfone layer (100) and the glass fiber layer (200).
2. The composite filtration membrane based on polyethersulfone and glass fibers according to claim 1, characterized in that, Alumina nanofibers are also connected between the glass fiber layer (200) and the polyethersulfone layer (100).
3. The composite filtration membrane based on polyethersulfone and glass fibers according to claim 1, characterized in that, A first wavy surface (500) is provided below the glass fiber layer (200), and a second wavy surface (600) that cooperates with the wavy surface is provided above the polyethersulfone layer (100). The first wavy surface (500) is connected to the second wavy surface (600).