Recently, the newly-developed controllable rheological polypropylene fiber series special materials project of Tianjin Petrochemical Ethylene Plant passed the acceptance inspection. Experts believe that the successful development of non-woven special materials and spun-bonded polypropylene filaments for needle-punched geotextiles will fill the gaps in this type of special-purpose material products in China. The main performance indicators of the non-woven materials used in the pilot products have reached similar imports. Product level, broad market prospects.

According to the needs of the market, after more than one year of repeated formula screening, optimization trials and small-scale trial spinning, a test product was developed, and with the aid of polypropylene and polyethylene devices, a 3-month trial production produced a total of 3 tons of test. product.

The successful development of new varieties of high-grade fiber special materials has further improved the product structure of ethylene plants and improved the market competitiveness. Especially for the first time, the development of polypropylene filaments for acupuncture geotextiles is of great significance.