PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Company Dynamics
23-01
Brief Introduction of Polytetrafluoroethylene Forming Process
The molding of expanded polytetrafluoroethylene is divided into two stages. In the first stage, PTFE bulk resin is mixed with lubricating aid in a certain proportion. After placing for a certain period of time, the preform is preformed, and then the paste is extruded into a longitudinally arranged fibrous preform and dried to remove the auxiliary agent. In the second stage, high-speed stretching is carried out at a temperature lower than the melting point of polytetrafluoroethylene, and then the semi-finished polytetrafluoroethylene in the stretched state is heat-set at a temperature higher than the melting point to obtain expanded polytetrafluoroethylene products.
23-01
A brief introduction to the mechanical and chemical properties of polytetrafluoroethylene
Polytetrafluoroethylene [PTFE,F4] is one of the best corrosion resistance materials in the world, so it is known as the "plastic king. It can be used in any kind of chemical medium for a long time, and its production has solved many problems in the fields of chemical industry, petroleum, pharmacy and so on.
23-01
E-PTFE nano composite mask special membrane
The key functional material of the e-PTFE nano-composite mask is the e-PTFE microfiltration membrane composite filter material, which uses the principle of physical barrier to protect various particles (such as dust, smoke, fog and microorganisms). The mask material is mainly composed of the outer layer of non-woven fabric or woven fabric, the middle layer of PTFE composite filter material, the inner layer of skin-friendly non-woven fabric or woven fabric composite.
23-01
What is ePTFE membrane? The role and use of ePTFE membrane
EPTFE is a microporous membrane formed by expanding and stretching polytetrafluoroethylene as a raw material. Experiments show that the surface of PTFE membrane is full of fibril-like micropores, with as many as 9 billion micropores per square inch. The cross-section is a network structure, and there are very complex structures such as mesh connection, hole insert sleeve, and hole bending on the three-dimensional structure of the hole.
23-01
Analysis on Turning Method of PTFE Gasket
According to the processing characteristics of PTFE gasket, through the sharpening of cutting tools and the rational use of processing methods, the dimensional accuracy error and shape accuracy error that are easy to produce when processing gaskets are effectively solved, and the surface roughness is ensured, so that the product can be guaranteed quality and quantity, and provide experience for future gasket processing.
23-01
Selection Points of PTFE Gasket
In principle, the selection of Dankai PTFE gasket should be based on the working pressure, working temperature, the corrosiveness of the sealing medium and the form of the combined sealing surface.
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