The use of microporous filtration membranes will become contaminated by particles, colloids, organic compounds and microbial growth over time. The fouling of pollutants will reduce the performance of
The pore size of a microporous filtration membrane is a key parameter that determines its separation performance. Most methods for evaluating pore size use a variety of measurement methods.
The performance of microfiltration membranes is affected by many variables, here is a brief summary: 1. Membrane pore size. The size of the membrane pore size is a key variable that
The working principle of ion exchange membranes (IEMs) is based on their unique molecular structure, which allows the selective transmission of certain ions while excluding others.
An electrolyte membrane, also known as an ion exchange membrane, is a semipermeable membrane that conducts certain ions while blocking other ions or substances of different charge, such as an electrol
Endotoxin is a heat-stable toxic substance that can usually withstand commonly used sterilization temperatures, such as dry heat or autoclaving, and can withstand temperatures up to 250°C for a short
Modified positively charged filter membrane refers to a filter membrane with a positive charge after chemical modification. The introduction of positive charges on the membrane surface can
The double-layer gradient structure of microporous membranes refers to two layers of membranes with different pore sizes, usually arranged such that the layer with larger pore size
What is the "fiber-free release" standard of microporous filtration membrane? It refers to the phenomenon of fiber shedding on the surface of the membrane caused by factors such as material, productio
Medical sterile filtration is usually performed using filter membranes made of polyethersulfone (PES), polyvinylidene fluoride (PVDF) or nylon. A prominent factor in the selection of these membrane ma
When we use microporous filtration membranes, there are several important factors that must be considered. This is mainly to ensure its correct and effective use.
The field of microporous membranes used in the air filtration industry is also particularly extensive. Microporous membranes are used to remove particles, impurities, and dirt (including bacteria, vir
Cellulose acetate membrane is a synthetic membrane used in a wide variety of applications, including water filtration, gas separation, and dialysis. It is extracted from cellulose
Regenerated cellulose (RC) membranes are produced from pure cellulose or cellulose derivatives. Cellulose is usually derived from wood pulp or cotton linters, and is named after a certain process
Polyvinylidene fluoride (PVDF) is a highly non-reactive pure thermoplastic fluoropolymer. PVDF is a chain of carbon atoms with two fluorine atoms and two hydrogen atoms attached to each carbon.
How to choose the right microporous membrane? The first task is to have a comprehensive, in-depth and clear understanding of the substances that need to be filtered. Taking liquids as an example, the
PAN has a linear structure and the repeating unit is -CH2-CH(CN)-. Since the carbon-carbon bond on the polymer main chain is a single bond, the chain is flexible and can move to a certain extent
