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The medical protective antibacterial polypropylene fiber material QY40S developed by Lanzhou Chemical Research Center of China Petroleum and Petrochemical Research Institute in cooperation with Qingyang Petrochemical Company performed well in the evaluation of long-term antibacterial performance. The antibacterial rate of Escherichia coli and Staphylococcus aureus after the first industrial product was placed for 90 days was not less than 99%. The successful development of this product indicates that PetroChina has added another heavy product in the field of medical polyolefin, which will further enhance the competitiveness of China's polyolefin industry.

Antibacterial PP fiber

Antibacterial grade textiles are widely used and social demand is strong. This year, the global production of spunbonded non-woven fabrics will increase to about 4.8 million tons, of which 2/3 will be used for medical and disposable antibacterial hygiene products. At present, the domestic demand for non-woven fabrics for medical and disposable antibacterial hygiene products is about 300000 tons/year.

The key to the development of antibacterial polypropylene fiber materials is the development of antibacterial additives. It can endow polypropylene with antibacterial and mildew-proof properties and directly determine the quality of antibacterial polypropylene fiber material. After scientific research, Lanzhou Chemical Research Center has developed a high-efficiency composite antibacterial additive for polypropylene fiber material. It has the characteristics of low addition amount and uniform dispersion, which can meet the requirements of low ash index of spinning process while ensuring the antibacterial and anti-mold performance of polypropylene fiber products, and improve the product quality of conventional polypropylene fiber.

On December 15, 2021, the new medical protective antibacterial polypropylene fiber material QY40S, which added composite antibacterial additives, successfully completed industrial trial production on the Qingyang petrochemical polypropylene plant. During this period, the device operated stably, the product performance fully met the standard, and the symbiotic output of more than 300 tons of qualified products, realizing the first industrial application of high-efficiency composite antibacterial additives in the polypropylene production plant of PetroChina.

The new medical protective antibacterial polypropylene fiber QY40S has excellent long-term antibacterial performance, which can provide high-quality and efficient raw materials for non-woven fabric manufacturers for medical protection, enrich the brand of medical polyolefin products in China, optimize the structure of Qingyang petrochemical products, and provide new transformation and upgrading schemes and benefit growth points for the same type of polypropylene production equipment.

Zhenhai Refining and Chemical Production of Non-woven Fabric Special Material Exceeding 10,000 Tons!

In April, Zhejiang Ningbo Zhenhai Refining and Chemical Company's special non-woven fabric production increased to 11000 tons, exceeding the total sales volume in the first quarter of this year. According to the industry's conversion of a ton of raw materials into non-woven fabrics for processing 6500-7000 sets of medical protective clothing, it can support the production of more than 70 million sets of medical protective clothing.

Non-woven fabric special material is a kind of polyolefin raw material made of petroleum refining and processing, which can be used as an important component of medical protective clothing non-woven fabric production, can also be used as a mask material. With the recent severe epidemic situation, especially the growth of medical protective clothing in Jiangsu, Zhejiang and Shanghai, non-woven processing enterprises to increase the production of medical protective clothing fabrics to meet the current demand for epidemic prevention materials at home and abroad.

In the face of the impact of the epidemic, Zhenhai Refining and Chemical actively assume Sinopec's social responsibility to fight the epidemic, strengthen planning, sales, production, logistics, factory integration and coordination, highlight the rapid response of the market, and actively rely on the supply of anti-epidemic materials.

On the evening of April 1, the help information of a Suzhou enterprise was transferred to Zhenhai Refining and Chemical Company, Sinopec's largest chemical production base in Ningbo, Zhejiang Province, via the East China Branch of Sinopec Chemical Sales. Suzhou customers are faced with material breakage and are in urgent need of purchase. At this time, the special non-woven fabric material Y40 just produced by Zhenhai Refining and Chemical Company is still in the silo. According to the conventional packaging plan, the goods will not be delivered until 8 o'clock the next morning at the earliest. Zhenhai Refining and Chemical Business Planning Department immediately worked with production operation, quality management, logistics and distribution departments to handle urgent matters, complete quality inspection and packaging as quickly as possible, and give priority to loading and delivering 60 tons. At about 23 o'clock on the same day, the special non-woven fabric Y40 was loaded on two large trucks and sent to Suzhou overnight. On April 2, the sky just light, the truck has arrived in Suzhou Zhangjiagang customer enterprise location, to ensure the timely supply of anti-epidemic medical supplies.

It is reported that in addition to non-woven special materials, M60T, a modified material for meltblown cloth used in medical masks, has also increased production and supplied to downstream customers everywhere.