Core sections of a NIPS production line NIPS
Control parameters: dissolution temperature, stirring speed, deaeration time, and vacuum level. Ensure a homogeneous, bubble-free dope to avoid internal fiber defects.
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 |
70°C（constant stirring for 6 hours） |
|
Material Ratios |
PVDF 17.5%： NMP 69.8%： PEG 13.5%; |
|
Deaeration Time |
Stand for 9 hours (to ensure no bubble defects) |
|
Metering And Extrusion System |
|
|
Metering Pump Accuracy |
±0.5% |
|
Nitrogen Pressure |
0.35 MPa |
|
Spinneret Orifice Diameter |
1.2/0.8 mm |
|
Spinning Speed |
19 m/min |
|
Coagulation And Forming System |
|
|
Air Gap Length |
13cm |
|
Coagulation Bath Temperature |
26°C |
|
Coagulant Composition |
Water / Ethanol |
|
Dual-diffusion Time |
Controlled by adjusting speed |
|
Post-treatment and Take-up System |
|
|
Washing Requirement |
Residual Solvent < 0.1% |
|
Drying Method |
Hot Air at 62 °C |
|
Draw Ratio |
1.2× (increases tensile strength to >0.4 MPa) |
|
Winding Speed |
18 m/min |
Suitable Materials
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
· A good-looking hollow fiber membrane can also attract many customers.
· hollow fiber membrane functions perfectly in the development of the multiple application needs.
· Considerate service is provided by Trustech to satisfy your needs.
Company Features
· Since our inception, Shanghai Trustech Technology Development Co., Ltd. has built a reputation for strong abilities in the developing and manufacturing of hollow fiber membrane.
· The majority of raw materials, technology and facilities utilized by Shanghai Trustech Technology Development Co., Ltd., are acquired from abroad.
· We are making efforts to reduce our negative environmental impact during production. We have brought in energy-efficient manufacturing facilities, hoping to cut carbon footprint and reduce pollution.
Application of the Product
Trustech's hollow fiber membrane is widely applicable in the industry.
Trustech always gives priority to customers and services. With a great focus on customers, we strive to meet their needs and provide optimal solutions.
About Trustech