Water absorption rate of high-efficiency low-resistance spunbond non-woven fabric
As we all know, every era has its specific products. High-efficiency and low-resistance spunbond non-woven fabric is a product of today’s era. It has brought many changes to people’s production and life. Today we are here Get to know this material.
Polypropylene is a polymer commonly used in the spinning process. Its main performance parameters include isotacticity, melt index (MFI) and ash content.
The spinning process requires the isotacticity of polypropylene to be above 95%. If it is below 90%, spinning will be difficult.
During the polymerization process, three configurations of polymers can be produced due to the different positions of the methyl groups in the three-dimensional space.
High-efficiency low-resistance spunbond non-woven fabric is a non-toxic, odorless and tasteless milky white highly crystalline polymer with a density of only 0.90–“0.91g/cm3. It is one of the lightest varieties of all plastics currently.
It is particularly stable in water, with a water absorption rate of only 0.01% and a molecular weight of about 80,000 to 150,000.
The formability is good, but due to the large shrinkage rate (1%~2.5%), thick-walled products are easy to dent, and it is difficult to meet the requirements for some parts with high dimensional accuracy, and the surface gloss of the product is good.
It is a manufacturer of polytetrafluoroethylene (ptfe) membrane environmentally friendly materials that specializes in R&D, production and sales.
In addition, we also supply high-efficiency and low-resistance spunbond non-woven fabrics. Our company is different from other manufacturers.
Our company can customize according to user’s requirements.
The optimized combination of key technical parameters such as speed ratio, pressure ratio, operating temperature, etc. can realize online control of air permeability, thickness and void ratio according to the ratio and pore-forming medium to meet the different requirements you need. .
Interested parties can enter the store for consultation.
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