PTFE Sewing Thread: Technological Innovation and New Vitality in the Chemical Industry

In the fields of chemical engineering and materials science, polytetrafluoroethylene (PTFE) is known as the "plastic king" due to its excellent chemical stability, high temperature resistance, and low friction coefficient. Sewing thread made of PTFE not only inherits these excellent characteristics, but also plays an indispensable role in various fields such as chemical production and industrial manufacturing. In recent years, the production process of PTFE sewing thread has been continuously innovated, injecting new vitality into its wide application in the chemical industry.

Breaking through tradition: Innovation in the production process of PTFE sewing thread

The traditional production of PTFE sewing thread often uses multi strand twisting technology. First, a single strand is twisted to obtain a single strand of PTFE long fiber, which is then twisted into multiple strands such as two or three strands, and finally heated and shaped to obtain sewing thread. Although this process can ensure the strength of the sewing thread, the multi strand structure increases the surface roughness and friction coefficient, making it prone to problems such as yarn breakage and fuzzing during high-speed sewing.

In addition, the composite spinning technology developed by Suzhou Naide New Material Technology Co., Ltd. and other units has also brought new breakthroughs to the production of PTFE sewing thread. This technology uses PTFE monofilament as the main raw material and combines it with high-performance fiber yarns such as modified PPS and meta aramid through direct drawing and double splicing. It also invented a sewing thread oiling device to improve oil content adhesion, producing a "pinhole self closing PTFE composite sewing thread", which solves the problems of smooth surface and poor adhesion of pure PTFE sewing thread, and improves its resistance to thermal creep and wear resistance.

Show off your skills: The diverse applications of PTFE sewing thread in chemical production

With its unique performance, PTFE sewing thread plays an important role in the field of chemical production. In high-temperature and highly corrosive chemical reaction environments, PTFE sewing thread can be used to sew various high-temperature and corrosion-resistant filter bags. These filter bags are widely used in the production and separation process of chemical products, which can effectively filter impurities, ensure product quality, and resist harsh working environments, extending the service life of filter bags.

Taking industrial waste gas treatment as an example, in the treatment of high-temperature and highly corrosive flue gas in industries such as waste incineration and steel smelting, PTFE sewing thread sewn dust filter bags perform well. The filter bag made of "pinhole self closing PTFE composite sewing thread" can improve dust removal efficiency, extend the service life of the filter bag, achieve long-term stable ultra-low particle emissions, and bring good economic and social benefits.

In the sealing field of chemical equipment, PTFE sewing thread is used to sew sealing gaskets and sealing bags. Its excellent chemical stability and low friction coefficient ensure that the sealing material maintains good sealing performance under different chemical media and temperature conditions, preventing chemical raw material leakage and ensuring production safety.

In addition, PTFE sewing thread is also used for coating and protection of chemical pipelines. Using PTFE sewing thread to sew protective covers outside pipelines that transport highly corrosive liquids or high-temperature media can enhance the wear and corrosion resistance of the pipeline, extend its service life, and reduce maintenance costs.

With the continuous advancement of technology and the sustained development of the chemical industry, PTFE sewing thread will usher in a broader development space.