High performance fiber materials Teflon (PTFE), with its excellent temperature stability, chemical resistance, electrical insulation, non-stick, weather resistance, flame retardant, self-lubricating, has a number of sectors of the economy of many applications received, such as environmental protection, filtration, construction, aerospace and other fields of material of choice.
Since the nature of the PTFE itself, which can be in the production of PTFE Adhesive Tape are not simply to the general procedure for the production of thermoplastic polymeric materials (such as extrusion method), and this bottleneck techniques is our long-term production of PTFE Tape can no good reason, the project researchers developed independently from the production of Teflon fiber membranes divided, that is, first by three-dimensional drawings are prepared, under certain conditions of expanded PTFE film to do justice to cut the PTFE membrane and then through some stretching and heat treatment of PTFE fibers are required.
Technology developed to break the blockade
He attended the Quartermaster General Logistics Equipment Institute, a research engineer Dr. Xinmin Hao, PTFE is insoluble in any solvent, and the linear arrangement of macromolecular chains, stiffness, viscosity above the melting point, not the method the solution or melt conventional spinning process, the in-depth treatment of the material PTFE, which was an important area of ​​technical problems, but the bottleneck is the technology of application of PTFE.
Currently there are only a few companies control the production of PTFE fiber technology, which has the primary transporter of spinning production process and the paste extrusion, but these long-term blockade of the implementation of China technology and products are expensive and increase the use of the cost of PTFE fiber, PTFE fiber, which significantly impairs the development and application development.
Only a few samples from the analysis of foreign production, began a long, hard years of research and hard work during this prelude. It is composed of companies, research institutions and users of research and design research group of the PTFE membrane fracturing the length of the relations of production of fibers, has developed a temperature gradient is not constant, variable width, always stretching PTFE fiber production, invented the development of high-strength PTFE fibers and short fibers, short fibers of PTFE-solution "and the thread" problem, has developed a multi-angle technology type crack fiber membrane cutter length, wear-resistant diamond short fiber needle rollers, film cracking slice of floss as dental care and other important facilities, design and processing of the extruder screw two calendar rolls, non-continuous process machine, temperature gradient change of width of the tractor, fiber cutter split feature film, short fiber cutting machine, the extruded fiber drawing machine, crimping set of sets existing production lines, and a large-scale production, R & D production of "industrialization" in the form of high-strength PTFE floss surface gradient of pure PTFE filter material, all these process technologies, products and equipment home and abroad in the literature no similar or identical, with the novelty and innovation. Check for new products further evidence that the production of PTFE fibers to fill the gap, PTFE fiber performance are among the internationally leading PTFE fiber applications in the advanced leading international and domestic.