Special antibacterial agent for plastic hollow fiber membranes
The plastic hollow fiber membrane, with its advantages such as high flux, good strength, resistance to acid and alkali, and ease of processing, is widely used in fields such as water purification filtration, wastewater treatment, reclaimed water reuse, and biomedical filtration. However, the porous structure of the membrane body easily adsorbs bacteria, molds, microorganisms, and organic impurities in the water body. Long-term operation is prone to membrane bio-pollution, microbial growth, membrane pore blockage, flux attenuation, odor and stickiness problems, which significantly shorten the service life of the membrane module and increase the operation and maintenance costs of the equipment. The special antibacterial agent for hollow fiber membranes is a core functional additive that solves membrane pollution, stabilizes filtration efficiency, and extends the service life of membrane materials from the root.
I. Product Overview
The plastic hollow fiber membrane-specific antibacterial agent is a dedicated functional additive for various polymer membrane materials such as PVDF, PES, PS, and PP. It can be adapted to various processing methods such as membrane liquid blending, surface coating, and post-treatment immersion. The product has excellent compatibility and does not damage the micro-porous structure, porosity, and water permeability and flux of the membrane body after addition, does not affect the tensile strength and filtration accuracy of the membrane material, and can build a stable and long-lasting antibacterial protection system inside and on the membrane body, effectively inhibiting the attachment and reproduction of microorganisms, and preventing the formation of biofilms.
II. Core Products of Dalian Tianwei Chemistry
In response to the industry pain points of hollow fiber membranes being prone to contamination, pore blockage, and poor antibacterial durability, Dalian Tianwei provides customized product services for high polymer filtration membrane materials. It is the preferred product for the modification and upgrading of water purification and wastewater filtration membranes.
The product adopts a nano silver-zinc inorganic antibacterial system, relying on a stable carrier to achieve controlled slow-release. Different from the shortcomings of traditional organic antibacterial agents such as easy precipitation, easy failure, and poor water resistance, the antibacterial components are firmly locked in the matrix of the membrane material, resistant to water flow erosion and long-term immersion, and also have multiple functions such as antibacterial, anti-algae, and prevention of biological adhesion, perfectly adapting to various production and use scenarios of plastic hollow fiber membranes.
III. Product Core Advantages
1. Broad-spectrum antibacterial, highly effective in decontamination
It has a strong inhibitory and killing effect on Escherichia coli, Staphylococcus aureus, molds, algae, and various heterotrophic bacteria in water bodies. The antibacterial rate can reach 99.9%, effectively preventing the adhesion and accumulation of biofilms and sludge, continuously ensuring the permeability of membrane pores, and stabilizing the filtration flux of the equipment.
2. Compatible with membrane material processes, without affecting filtration performance
The powder is fine and has excellent dispersibility. It can be uniformly mixed with the casting liquid system without agglomeration or clogging of pores. It will not change the microstructure, pore size distribution, and water permeability of the membrane material, and will not affect the strength, flexibility, and filtration accuracy of the membrane body. It is compatible with both dry and wet spinning processes and post-modification processes.
3. Water-resistant and resistant to erosion, long-lasting stability
The inorganic antibacterial structure is resistant to acids and alkalis, can be soaked, and is resistant to high and low temperatures. The antibacterial components do not have free decomposition. Under long-term water flow erosion and repeated filtration conditions, it can still maintain stable antibacterial activity, fundamentally reducing membrane contamination, significantly extending the service life of membrane components, and reducing cleaning and replacement costs.
4. Safe and environmentally friendly, with a wide range of applications
The product has no VOCs, is non-toxic and non-irritating, has passed multiple environmental safety tests, has good biocompatibility, and will not cause secondary pollution of the water body. It can be safely used in drinking water purification, food and medicine filtration, and civilian water purification equipment in high-end scenarios.
IV. Main Application Scenarios
Water purification filter membranes: household water purifiers, whole-house water purifiers, commercial pure water equipment, hollow fiber membranes
Water treatment membranes: industrial wastewater, municipal reclaimed water reuse, landscape water filtration, PVDF/PES membrane modules
Special filter membranes: biomedicine, food and beverage, precision liquid filtration antibacterial membrane materials
Environmental protection equipment: integrated sewage treatment equipment, ultrafiltration equipment, submerged membrane modules
V. Summary
Dalian Tianwei's hollow fiber membrane-specific antibacterial agent, with its core advantages of not clogging pores, highly antibacterial, resistant to erosion, long-lasting stability, and safety and environmental friendliness, has solved industry problems such as membrane biocontamination, flux attenuation, and short lifespan. Without complex process modifications, it can quickly achieve antibacterial modification of ordinary membrane materials, enhancing the core competitiveness of membrane products, and adapting to high-quality filtration requirements in various industries such as water purification, environmental protection, and medical treatment.
The manufacturer supplies stable quality, supports sample testing, and customizes compatible solutions based on the membrane material system, helping membrane enterprises upgrade antibacterial filtration products efficiently.
