Core sections of a NIPS production line NIPS
Dope preparation system
Control parameters: dissolution temperature, stirring speed, deaeration time, and vacuum level. Ensure a homogeneous, bubble-free dope to avoid internal fiber defects.
Metering and extrusion systemControl parameters: metering pump flow accuracy, spinneret orifice size and temperature, bore fluid flow rate and pressure. The spinneret orifice directly affects fiber diameter; bore fluid flow must be matched to the dope to prevent fiber collapse.
Coagulation and forming systemControl parameters: coagulation bath temperature, composition, and liquid level; washing temperature and time to avoid fiber shrinkage. Washing must thoroughly remove residual solvent to prevent membrane performance degradation.
Post treatment and take-up system
Control parameters: draw ratio, drying temperature and time, winding tension. The draw ratio should be controlled at 1.5–3× to enhance mechanical properties;drying temperature should be tailored to the material to avoid embrittlement from overdrying.
Key control parameters
|
Core Sections |
Parameters |
|
Dope Preparation System |
|
|
Temperature |
65°C(constant stirring for 6 hours) |
|
Material Ratios |
PVDF 16.7%: NMP 68.9%: PEG 13.3%; |
|
Deaeration Time |
Stand for 8 hours (to ensure no bubble defects) |
|
Metering And Extrusion System |
|
|
Metering Pump Accuracy |
±0.5% |
|
Nitrogen Pressure |
0.30 MPa |
|
Spinneret Orifice Diameter |
1.3/0.6 mm |
|
Spinning Speed |
22 m/min |
|
Coagulation And Forming System |
|
|
Air Gap Length |
15cm |
|
Coagulation Bath Temperature |
26°C |
|
Coagulant Composition |
Water |
|
Dual-diffusion Time |
Controlled by adjusting speed |
|
Post-treatment and Take-up System |
|
|
Washing Requirement |
Residual Solvent < 0.1% |
|
Drying Method |
Hot Air at 67 °C |
|
Draw Ratio |
1.2× (increases tensile strength to >0.4 MPa) |
|
Winding Speed |
19 m/min |
Suitable Materials
PVDF (Polyvinylidene Fluoride)
CA (cellulose acetate)
PVC (Polyvinyl chloride)
PES (Polyethersulfone)
PSF/PSU (Polysulfone)
PA (Nylon, Polyamide)
PAN (polyacrylonitrile)
Customer Membrane Examples
Brief Introduction
Trustech is a leading company that specializes in the research, development, and manufacturing of hollow fiber membrane spinning machines and spinning spinnerets. These spinning machines and spinning spinnerets have extensive applications across various industries including water purification, gas separation, hemodialysis, ECMO (Extracorporeal Membrane Oxygenation), food and beverage processing, biotechnology, and chemical engineering, among others.
Trustech is not only at the forefront of hollow fiber membrane spinnerets which develop FCT 5th - 8th generation technology, but also leading hollow fiber membrane spinning machine and flat sheet membrane casting system. Backed by outstanding R&D and quality, Trustech holds China’s high-end market, upgraded spinning systems to enhance precision and stability, and engineered key subsystems including the SteadyiCore Ultra 2.0 Heating system,TitanMix Pro 4.0 Mixing system, PrimeGlider Pro 3.0 Automatic pay-off, SmartCoil Elite 3.0 Automatic winding and StoutDrive 2.0 motor drive setup. These advances of spinning machine and spinneret improved spinning system stability, reduced commissioning and production downtime, and increased overall spinning efficiency by 11.4% compared with before the improvements.
FAQ
Company Advantages
· The raw materials of Trustech hollow fiber membrane manufacturers is procured from reliable vendors across the world.
· The product has been tested to meet international quality standards.
· Trustech also highly values the feedback of customers which will enhance the customer satisfication through constantly improve hollow fiber membrane manufacturers.
Company Features
· Known as a leading manufacturer for hollow fiber membrane manufacturers, Shanghai Trustech Technology Development Co., Ltd. wins wide oversea market.
· Our company boasts a team of competent and skilled professionals. They work closely during our production process from start to our finish to ensure the end result meets our high standards.
· We believe wholeheartedly in the kind of partnerships that allow for close collaboration and we're always prepared to ask the challenging questions that others might not. Customers can always rely on us.
Application of the Product
Trustech's hollow fiber membrane manufacturers is available in a wide range of applications.
Trustech insists on providing customers with one-stop and complete solution from the customer's perspective.
About Trustech