Product News

PTFE Sodium Treatment - Bonded Teflon Sheet

Views : 2091
Update time : 2024-03-26 11:40:28

1.PTFE nanation process introduction:

Polytetrafluoroethylene nanation treatment surface itself is not adhesive, such as want to bond with other substances must need one side and two sides after nana chemical treatment, and rubber, metal, and other substances bond, in special use, make up for the non-adhesive properties of polytetrafluoroethylene products.
 
Because the carbon-carbon bond in the polytetrafluoroethylene (F4) molecule is tightly surrounded by the fluorine atoms in the outer layer, it has high stability and non-viscosity, and the general pressure sensitive adhesive can not be used for F4 products for large area and high strength bonding. The F4 surface is treated with sodium naphthalene to increase its polarity and surface tension, resulting in an activated F4 surface that is able to bond with metals, nonmetals and other plastics.

PTFE nanation application: high temperature adhesive tape,PTFE coated copper plate, mouse friction pad. Bridge expansion slider, stadium moving roof slider. Produce all kinds of polytetrafluoroethylene (special-shaped. Molded parts) polytetrafluoroethylene molded plate. Turning board. Tube. Rod. Film. Gasket. Seal, etc.!

The filled Teflon plastic has good wear resistance and cold flow resistance, but the surface tension of the material is low, it is difficult to use directly, and surface pretreatment must be carried out. In many treatment methods, sodium naphthalene treatment of polytetrafluoroethylene has outstanding advantages:

  1. High bonding strength (with DG-3S bonding agent)
  2. The treatment agent only corrodes the surface of fluoroplastic (the depth is several μm), and does not affect the mechanical properties of the internal material.
  3. The guide rail veneer can be embedded with metal particles entering the boundary to protect the guide rail from strain and friction.
  4. The wear resistance of the guide rail surface is good, which ensures the accuracy of the machine tool and extends the service life of the machine tool.
  5. The bonding process is simple, the bonding strength is high and the cost is low.
     

2.Process steps for treating PTFE sheet with sodium treatment solution:Step 1: First of all, the turned polytetrafluoroethylene products, including PTFE sheet or PTFE film with acetone or alcohol cleaning, remove the surface oil and dirt;

Step 2: At room temperature, the clean PTFE products are immersed in the prepared naphthalene sodium treatment solution for 1 to 10 minutes, and then removed;

Step 3: First clean with room temperature water, wash in 90℃ hot water, remove the residues such as NaH and NaOH, wait until the surface of PTFE is dark brown, after treatment, dry or dry in the oven, and then rewind;

Step 4: Pack with black light blocking film for use.

Related News
Overview of PTFE (Teflon) Products Usage
Overview of PTFE (Teflon) Products Usage
Jun .25.2024
PTFE plastic, or Polytetrafluoroethylene, exhibits outstanding chemical corrosion resistance, dielectric properties, weatherability, non-flammability, non-adhesiveness, low friction, and a wide temperature tolerance due to strong fluorocarbon bonds and fluorine’s shielding effect.
PTFE Molding Process Introduction
PTFE Molding Process Introduction
Mar .18.2024
The common forming and rotating forming methods of PTFE are introduced.
Performance and Applications of PTFE Tubes
Performance and Applications of PTFE Tubes
Mar .01.2024
PTFE (Polytetrafluoroethylene) tubes, compared to other types of tubes, do have their advantages, especially in high-temperature and high-pressure mechanical industries. They are particularly advantageous in applications such as mold temperature controllers, hot melt glue machines, blow molding machines, vulcanizers, hot runners, brake lines, and more. PTFE tubes are highly favored in these industries.
The Applications of PTFE(Teflon) Rods And Their Role in Production Activities
The Applications of PTFE(Teflon) Rods And Their Role in Production Activities
Feb .27.2024
Polytetrafluoroethylene (PTFE) rods are widely used in various industrial sectors for their soft texture and corrosion resistance, mainly for sealing purposes. Many people may wonder about the applications of PTFE rods and their role in production activities. Today, I will introduce the uses of PTFE rods in detail.