The hottest film splitting PTFE fiber technology i

2022-10-15
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On September 27, the China Textile Industry Association organized a strong expert evaluation committee in Shanghai to evaluate Shanghai Jinyou fluorine materials Co., Ltd Shanghai Lingqiao Environmental Protection Equipment Factory Co., Ltd. and the Quartermaster Equipment Research Institute of the General Logistics Department of the Chinese people's Liberation Army jointly completed the project of "Research on the industrialized production technology and application of membrane splitting polytetrafluoroethylene (PTFE) fiber"

academician sunjinliang, director of the appraisal committee, academicians jiangshicheng and zhangyaoming, deputy directors, and 11 experts from the fields of chemical fiber materials, industrial textiles, environmental protection, chemical industry, etc. believe that the project is a major integration of China in the processing technology, production equipment, product development and other aspects of high-performance fibers. From the perspective of the province, it has a demonstration effect, and the overall technology has reached the international advanced level

the project invented the PTFE uniform three-dimensional processing film making technology, which solved the technical problems of micropore control and uneven thickness in the film production process through the processing links of PTFE resin multiple mixing, multi-step pressurization, multi-channel stretching and so on; The invented non constant speed, variable width, multi-channel stretching, membrane splitting and other production technologies controlled by temperature gradient improve the strength and linear density uniformity of PTFE fiber produced by membrane splitting method; With expanded polytetrafluoroethylene (ePTFE) membrane hot pressing composite, developed a series of high-performance filter materials. The self-developed and integrated and innovative complete set of production equipment for PTFE membrane and fiber operates stably and has formed thousands of tons, so that the temperature drift affects the minimum production capacity. This achievement has independent intellectual property rights, 10 invention patents have been applied for, and 4 have been authorized. It has significant social and economic benefits and broad market prospects

according to the introduction, the PTFE fiber series products produced in batch at present have the characteristics of high temperature resistance, strong acid and alkali corrosion resistance, pneumatic and acoustic type, ultra-high frequency corrosion resistance, stable performance under harsh conditions, and can also program and print the experimental report according to the format required by users. They have been successfully used in the fields of waste incineration, coal-fired power plants, steel and cement, and have achieved good results. Its product quality is completely comparable to that of similar products in developed countries, and some of its performance is even higher than that of foreign products, and the price is only 1/3 of that of foreign products. Some products have been exported to developed countries in Europe and the United States

Ye Yongmao, a senior engineer of China Chemical Fiber Industry Association, pointed out that the national development and Reform Commission clearly listed the development and production of PTFE fibers and products as one of the key points in the catalogue for the guidance of industrial structure adjustment. In the first year of the 12th Five Year Plan, it is really exciting to see the fruitful results of the serialization of project completion units. As a skeleton material with excellent performance, the mass production of PTFE fiber can promote the application of high-performance fibers such as Aramid 1313, polysulfone and polyphenylene sulfide fibers in filter materials, accelerate the transformation of the economic development mode of China's chemical fiber industry, promote the adjustment and upgrading of chemical fiber industrial structure, and improve and develop the modern industrial system

long Aimin of the Institute of dust removal and ash removal of Guodian Environmental Protection Research Institute said that the major breakthrough in the production technology of domestic PTFE fiber has successfully broken the product monopoly and technical blockade imposed by foreign countries on China for many years, and will lead to the upgrading of environmental protection processes and materials. In the key stage of promoting the "blue sky project" in the "12th Five Year Plan" country, it has great social significance and economic benefits

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