Fluorine plastic pipes are not only widely used but also have many types. One of them is the 175 ℃ high-temperature fluorine plastic heat shrink pipe, which is made of radiation cross-linked modified fluorine plastic and has characteristics such as transparency, high temperature resistance, wear resistance, chemical corrosion resistance, flame retardancy, etc. It is widely used for the protection of wires, welding points, insulation terminals, connection points or components.Since it is called a 175 ℃ high-temperature fluoroplastic heat shrink tube, it indicates that its complete shrinkage temperature is 175 ℃, and the reason why it adopts a bright color appearance is mainly for easy marking and inspection. After strict inspection, it has been confirmed that this fluoroplastic pipe meets RoHS standards and is safe and environmentally friendly.Another type is Teflon heat shrink tubing, which is also a type of fluoroplastic tubing made of PTFE material. It is particularly suitable for high temperature resistance, chemical resistance, good insulation and non flame retardancy, and is widely used in fields such as military, aerospace, and gasoline industries.In practical applications, the working temperature range of Teflon heat shrink tubing is -65 ℃ to+260 ℃; The minimum complete shrinkage temperature is 350 ℃; Its standard color is mainly transparent, and the quality of the product fully complies with RoHS standards, which is highly favored by users.In addition, the emphasis should be placed on the wear resistance of polytetrafluoroethylene pipes, which are higher than nylon, polypropylene, carbon steel, stainless steel, and other materials. The hot deformation temperature is also more than ten degrees higher than that of ordinary plastics, and there is almost no lower limit to the cold brittleness temperature. The elongation at break is as high as 350%.

The fluorine plastic used in the production of fluorine plastic pipes is a material with good heat resistance, cold resistance, weather resistance, drug resistance, solvent resistance, excellent insulation and high-frequency electrical performance, and can reflect the characteristics of non drying, self-lubrication, low friction coefficient, etc. It is precisely because of these characteristics that fluoroplastic pipes are so unique.Of course, there are differences between fluoroplastics, such as polytetrafluoroethylene and perfluorinated copolymers, which are entirely composed of carbon and fluorine atoms; Polyvinylidene fluoride and polyfluoroethylene molecules also contain hydrogen atoms, while polytetrafluorochloroethylene also contains chlorine atoms. The excellent properties of these fluoroplastics are achieved by the high binding between carbon and fluorine atoms.The main chain skeleton of polytetrafluoroethylene is carbon atoms, and its surroundings are completely surrounded by fluorine atoms, so its performance in all aspects is the highest; Due to the influence of side groups, PFA, FEP, ETFE and other varieties have low softening point PTFE, and other properties have also changed, resulting in differences in the performance of various fluoroplastic pipes.Fluoroplastics have flame retardancy and excellent heat resistance, among which PTFE and PFA can be continuously used at temperatures up to 260 ℃ and can be used at 300 ℃ in the short term; And the usage temperature of FEP is 60 ℃ lower than them; PCTFE can be used at 120 ℃. However, when fluoroplastic pipes are used at high temperatures for a long time, it can also cause changes in crystallinity.Fluoroplastics have excellent resistance to drugs and solvents, especially PTFE, PFA, FEP, etc. Acids, alkalis, and solvents do not corrode them, but molten alkali metals, fluorine, and trifluorochlorinated hydrocarbons have varying degrees of influence on them. Therefore, attention should be paid to the use of fluoroplastics pipes.The electrical properties, especially high-frequency electrical properties, of fluoroplastics are difficult to compete with other materials because their molecular polarity is very low, with small changes in a wide temperature and frequency range, stable relative dielectric constant, low dielectric loss, and excellent electrical insulation. In addition, fluoroplastics also have good mechanical properties, non adhesion, weather resistance, hydrophobicity, etc., making fluoroplastics pipes widely used.

Although it is just a simple pipe material, do not blindly purchase it, especially PTFE pipes, as there are many unfavorable factors. Therefore, before deciding to buy, it is necessary to thoroughly understand the quality and grade of PTFE pipes to ensure that high-quality products are purchased.Firstly, one can touch the PTFE tube by hand. A good PTFE tube has a uniform and smooth texture, indicating that its manufacturing process is meticulous and comprehensive; However, the rough texture of the PTFE tube clearly cannot meet the requirements, and its manufacturing process is bound to be careless.Secondly, most PTFE tubes have specific colors, so if any color abnormalities are found after observation, it is important to purchase them with caution. The quality issue of tetrafluoroethylene tubes often reflects whether they have added a class of unqualified chemical components.At the same time, the quality of PTFE pipes can be distinguished by smelling the smell. High quality steel lined PTFE pipes, especially environmentally friendly types, are generally odorless or have few odors, and most pipes are rarely able to achieve a completely odorless stage when they are not outdated.In addition, elasticity testing is also a way to prove the quality of PTFE pipes. If conditions permit, conducting elasticity testing on PTFE pipes can determine the quality of the pipes. When purchasing products, it is important to use these four points to ensure quality without being deceived.

The essential difference between PFA pipes and PTFE pipes lies in the materials they use. It is also easy to distinguish between these two plastic materials. From their appearance, PFA is translucent, while PTFE is pure white and opaque; In the shape of raw materials, PFA is granular, while PTFE is powdery.In summary, PFA plastic is a copolymer of a small amount of perfluoropropyl perfluoroethylene ether and polytetrafluoroethylene. Its characteristics are enhanced melt adhesion, decreased solution viscosity, and no change in performance compared to polytetrafluoroethylene. This type of resin can be directly processed into products using ordinary thermoplastic forming methods, suitable for making corrosion-resistant parts, wear reducing and wear-resistant parts, seals, insulation parts and medical device parts, high-temperature wire and cable insulation layers, anti-corrosion equipment, sealing materials, pump valve bushings, and chemical containers.The long-term use temperature of PFA is -196-260 degrees Celsius, which has excellent chemical corrosion resistance and is resistant to all chemicals, with the lowest friction coefficient among plastics; At the same time, it also has excellent electrical properties, and its electrical insulation is not affected by temperature. Its chemical resistance is similar to that of polytetrafluoroethylene, but better than that of vinylidene fluoride.Furthermore, PFA has better creep resistance and compressive strength than polytetrafluoroethylene, high tensile strength, and an elongation of 100-300%. And it has good dielectric properties and excellent radiation resistance; The flame retardancy reaches V0 level, and the PFA pipe made from it also possesses the excellent performance mentioned above.And PTFE is polytetrafluoroethylene, which has the characteristics of acid resistance, alkali resistance, and resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristic of high temperature resistance and extremely low friction coefficient, making it an ideal coating for easy cleaning of the inner layer of water pipes in addition to lubrication.It has been proven through practice that PTFE can withstand atmospheric aging; Radiation resistance and low permeability; Long term exposure to the atmosphere, with unchanged surface and performance. At the same time, it can also withstand acid and alkali, so it is insoluble in strong acids, alkalis, and organic solvents. The performance of plastic pipes made of such materials should not be poor, after all, the raw materials have the above characteristics.

Fluorine plastic pipes not only have excellent performance, but also have a wide range of applications, so they can play an important role in gas sampling and pre-treatment. In general, fluoroplastic pipes can maintain their long-term performance within the range of -180 ° C to+250 ° C.The excellent properties of fluoroplastic pipes include chemical stability, resistance to various strong acids, alkalis, and oxidizing agents, high insulation, unaffected by temperature and frequency changes, high lubricity, outstanding non adhesion, minimum surface tension, good aging resistance, and non-toxic properties.Due to the practicality of fluorine plastic pipes, they can be widely used in industrial production such as chemical, mechanical, electronic, electrical, textile, rubber, food, medical equipment, aviation, aerospace, communication, petroleum, etc., and fully reflect the ideal use effect.When applied in the gas sampling and pre-treatment section, in addition to the fluoroplastic tube, it also needs to be matched with other components, such as high-temperature sampling probes, gas supply units, etc. The high-temperature sampling probe is composed of a sampling tube, a sampling probe, a filter, a heater, and a climate protection box. The filter built-in to the sampling probe is the filtering medium, which filters out the smoke and dust present in the flue gas. The sampling probe is kept at a constant temperature within the range of 180 ℃± 2 ℃ to avoid water condensation and the solidification of unknown high boiling compounds in the flue gas.And fluoroplastic pipes are used as heating sampling gas pipelines φ 40mm sheathed heating sampling tube, built-in φ PFA high-temperature and corrosion-resistant fluoroplastic pipe, with a maximum bearing temperature of 260 ℃ and an internal temperature controlled at 180 ℃, meets the requirements of gas sampling and pretreatment.The gas supply unit in the system includes a high-temperature pump, high-temperature switching valve, secondary filter, and flow meter, all of which are kept at a constant temperature of 180 ℃. The high-temperature sampling pump can extract smoke from the flue, and the smoke is filtered through a secondary filter to remove ultrafine smoke and dust. The flow meter monitors the smoke flow.

Although both fluoroplastics and fluororubber have fluorine content, they are two different materials with significant differences in composition. In contrast, fluororubber is soft, while fluoroplastics are harder, but both have good corrosion resistance. In fact, fluorine rubber is easy to identify, but the quality of fluorine rubber is difficult to say. Some believe that the odor is distinguishable, some believe that it needs to undergo performance testing, and some believe that infrared spectroscopy is more scientific.200 ℃ fluororubber heat shrink tubing is made of fluororubber as the main material and has excellent high and low temperature resistance, oil resistance, and chemical reagent resistance. It is particularly suitable for places that require heat resistance and environments that require chemical solvent resistance. 200 ℃ heat shrink tubing is suitable for insulation protection and stress relief of cable harnesses in these environments, protecting electronic and electrical equipment from damage.Compared to other heat shrink tubes, 200 ℃ fluororubber heat shrink tubes not only have high temperature resistance, solvent resistance, chemical corrosion resistance, radiation resistance, and excellent oil resistance; Moreover, it does not contain substances harmful to the environment such as chlorinated compounds PCBs, PCPs, polybrominated biphenyls PBBs, polybrominated oxidized biphenyls PBBOs, polybrominated biphenyl ethers PBBEs, PBDEs, etc. It meets the environmental requirements of the European RoHS environmental directive and SONY SS00259 standard.Fluorine plastic is a material with good corrosion resistance, which can withstand the action of all strong acids, strong oxidants, reducing agents, and various organic solvents except for molten alkali metals, fluorinated media, and sodium hydroxide above 300 ℃. At the same time, it has a characteristic that the protruding surface is not sticky, and known solid materials cannot adhere to the surface. It is a solid material with the smallest surface energy.Moreover, fluoroplastics have excellent atmospheric aging resistance, radiation resistance, and low permeability, even after long-term exposure to the atmosphere, their surface and properties remain unchanged. And it also has valuable non combustible properties, with an oxygen limit index below 90.In short, fluororubber and fluoroplastics have different properties and characteristics, so the scope of application is also different. When choosing, we must consider various factors comprehensively before determining.

The report of the 18th National Congress of the Communist Party of China proposes that we should comprehensively seize opportunities, calmly respond to challenges, and thus win initiative, advantages, and the future. At present, the fluorine chemical industry is in a special historical period where opportunities and challenges coexist, and the contradiction between overcapacity and insufficient supply is prominent. How to successfully respond to the challenges and maintain the sustainable and healthy development of the industry is a task that must be done with great efforts.In the past decade, the fluorine chemical industry has gone through a stage of rapid development, completing the transformation from a small and weak fluorine chemical country to a large country. The achievements made are obvious to all, and the production capacity and output of fluorine chemical products are second to none in the world. However, rapid development also brings drawbacks, such as low-level repetitive construction of devices, severe overcapacity of general products, and excessive consumption of fluorite resources. This extensive high-speed development model has begun to constrain the development of the industry, and the driving force for sustainable development of the industry is seriously insufficient.During the 11th Five Year Plan period, deep-seated problems such as excessive investment, rapid expansion of production capacity, homogenization, and low-end industries have already emerged. However, the industry lacks awareness and attention to this issue. Most new projects are resource dependent and low-level repetitive construction, which not only deepens the contradiction of overcapacity and intensifies market competition, but also wastes resources and pollutes the environment.In fact, the excessive consumption of resources and environmental pollution have formed constraints on the sustainable development of the industry. The basic reserves of fluorite in China are about 11 million tons, and the proven recoverable reserves are about 21 million tons. The reserve to production ratio is 7, far lower than the global reserve to production ratio of 44.5, indicating extreme overexploitation. The scarcity of exploitable fluorite rich ore has affected the sustainable development of the industry.The issue of environmental pollution is also the same. Fluoride industry is a high-risk industry, and the significance of doing a good job in environmental governance is no longer limited to protecting the environment and benefiting the people. By recycling and utilizing by-products, it can also improve the resource utilization rate of enterprises, reduce production costs, improve economic benefits, and enhance their competitiveness.The report of the 18th National Congress pointed out the direction for sustainable and healthy development of the industry. The industry must take a long-term perspective, fundamentally adjust its industrial structure, transform its growth mode, and formulate future development plans based on industry characteristics.How to win initiative and gain advantages? As for the fluorine chemical industry, it is particularly necessary to be driven by technological innovation for development. The rapid development of China's fluorine chemical industry in the past decade has benefited from a large number of independent research and development achievements accumulated in the process of developing the "two bombs and one satellite" in the past few decades. These achievements not only support the development of China's aerospace industry, but also lay a solid foundation for the rapid development of the fluorine chemical industry and the promotion of fluorine materials in the civilian field. However, today many enterprises, especially those newly entering the fluorine chemical industry, have low R&D investment, weak independent innovation capabilities, and a lack of technical resources. If this continues, without technological support, the future development of enterprises will be a tree without roots.To effectively transform the mode of economic development, we need to form a new driving force for economic growth driven by structural optimization, efficiency improvement, and innovation. The application fields of fluorinated chemicals and materials involve multiple strategic emerging industries and high-tech fields. Without independently developed technologies and products, we can only be constrained by others. In key areas, foreign countries will not easily transfer advanced technology and high value-added products. To meet the high-end demand of the domestic market and support the development of strategic emerging industries such as energy conservation and environmental protection, new generation information technology, biology, high-end equipment manufacturing, new energy, and new materials in China, fluorine chemical industry must make great efforts in technology and product research and development, and comprehensively enhance its technological innovation capabilities.Therefore, we suggest increasing investment in science and technology, improving the innovation system, and ensuring the continuous enrichment of scientific and technological resources; Secondly, we need to promote the construction of various forms of innovation systems, such as innovation strategic alliances that combine industry, academia, and research, enterprise technology research and development centers, and industrial park technology innovation platforms; Thirdly, we need to increase the development of production technologies for high-end fluoropolymers, fluorinated membrane materials, and high-quality fluorinated fine chemicals (high-purity electronic chemicals, fluorinated surfactants, fluorinated intermediates, etc.), breaking through a number of key common technologies; Fourthly, actively promote advanced and applicable technologies for basic fluorine chemical products, accelerate the promotion of energy conservation, consumption reduction, clean production, and technological transformation of existing devices, further improve operational quality, and reduce manufacturing costs; The fifth is to strengthen the protection of intellectual property rights and brand protection.Only by developing reasonably according to scientific planning, accelerating the transformation of production methods, adhering to innovation driven and scientific development, can the fluorine chemical industry have a bright future.

Fluorination is one of the new chemical materials industries, known as the gold industry. Fluorine chemical products, with their excellent properties such as chemical resistance, high and low temperature resistance, aging resistance, low friction, insulation, etc., are widely used in military, chemical, mechanical and other fields, and have become a strategic emerging industry with rapid development and great potential in the chemical industry. The "12th Five Year Plan for the Development of China's Fluorine Chemical Industry" proposes that by 2015, the total production capacity of various fluorine chemical products in China will reach 4.5 million tons, with the proportion of mid to high-end products increasing to 20%, and the total output value of the fluorine chemical industry reaching 150 billion yuan.In the process of rapid development, China's fluorine chemical industry has also exposed some problems. At present, there are over a thousand fluorine chemical enterprises in China, and a complete fluorine chemical industry chain has been basically formed, including fluoroalkanes, fluoropolymers, inorganic fluorides, fluorine containing fine chemicals, fluorine material processing, etc. The production capacity and output of fluorine chemical products such as fluorite, hydrofluoric acid, aluminum fluoride, polytetrafluoroethylene, HCFC, HFC, fluorine rubber are also among the top in the world. However, due to reasons such as outdated technology and insufficient product innovation capabilities, there is a serious phenomenon of low-level repetitive construction in the industry, resulting in disorderly expansion of production capacity, leading to rapid consumption of resources such as fluorite, which seriously affects the sustainable development of the industry. Fluorine chemical enterprises are mostly concentrated in the upstream of the industrial chain, with a large amount of basic fluorine chemical products, and prominent contradictions between the industrial structure and product structure.Based on this, in order to achieve the development goals of the 12th Five Year Plan, the fluorine chemical industry must focus on the theme of transformation, optimization, and innovation, focus on structural adjustment, promote industrial transformation and upgrading, and develop towards refinement, lightweight, composite, energy-saving, environmental protection, and circular economy.So, how to promote industrial structure adjustment and transformation and upgrading? The author suggests that firstly, we should actively play the coordinating role of industry associations, accelerate the formulation of detailed rules for the development of the fluorine chemical industry, and quickly form a policy system and management system that is in line with China's national conditions and the characteristics of the fluorine chemical industry, in order to better solve the current industrial policies and environmental protection problemsRestrictive factors such as regulations and international trade; The second is to accelerate the elimination of outdated products and processes with poor product quality and causing environmental pollution, focus on improving scientific and technological innovation capabilities and cultivating high-quality talent teams, introduce more preferential policies, encourage and promote the fluorine chemical industry to shift towards refined, differentiated, distinctive, and high-end development, and enhance the core competitiveness of the industry; The third is to scientifically position, reasonably layout the construction of the park, increase the protection and intensive mining of fluorite resources, strengthen economic and technological exchanges and cooperation, and create a development environment that complements each other's advantages, is reasonable and orderly, and coexists and thrives together; Fourthly, aiming at the forefront of world technology, we will vigorously develop new environmentally friendly refrigerants, polytetrafluoroethylene, polyvinylidene fluoride, and perfluoroethylene propylene, and other fluorinated fine chemicals, extend the industrial chain, and enrich our product series.Fuxin City, Liaoning Province is the cradle of China's fluorine chemical industry development, with a 40 year history of development. The "Development Plan for the Fluorine Chemical Industry in Fuxin City" is based on the three major advantages of local region, resources, and technology, clarifying the focus on developing mainstream fluorine chemical products such as fluoroalkanes and fluoropolymers, supporting the development of basic chemical products, and enhancing the overall development of fluorine containing fine chemicals. At present, the supporting facilities of the Liaoning Fuxin Fluorine Chemical Industry Base, which covers an area of 20 square kilometers, are gradually becoming complete. A group of well-known domestic and foreign enterprises have successively settled in, a batch of refined, differentiated, and high-end fluorine chemical products are being formed, and a batch of new environmentally friendly refrigerants, aluminum chloride, and other fine fluorine containing products are entering the market.Since the beginning of this year, the overall growth rate of the domestic fluorine chemical industry has declined, while the fluorine chemical industry in Fuxin has bucked the trend. As of now, the growth rate of the main economic indicators of the fluorine chemical industry has reached over 100%, and the road for Fuxin to build China's hundred billion yuan fluorine capital is spreading at its feet. The development path of Fuxin's fluorine chemical industry may not necessarily be a common model in the industry, but there is still some inspiration and reference significance

The global demand for fluorine chemical products will grow at an annual rate of 3.9%, reaching 3.5 million tons by 2016. The main reasons for its growth include the increase in global production of refrigeration and air conditioning equipment, as well as the rapid growth of raw aluminum production. Of course, fluorine chemical enterprises also face many challenges. Firstly, there are major raw materials, such as fluorite. China is the world's largest supplier and its production is currently restricted. Another challenge is environmental regulations targeting fluorocarbon compounds, which are constantly being replaced or phased out due to global and national regulations. Finally, the competition with alternative products is becoming increasingly fierce, especially in the commercial refrigeration and foaming industries, which have brought enormous pressure to the development of the fluorine chemical industry.In the fluorocarbon industry, by 2016, its growth rate was only slightly lower than the overall growth rate of the fluorochemical industry. Of course, each type of product also has significant differences. According to the requirements of the Montreal Protocol, developed countries have reached the final stage of phasing out the ODS substance HCFCs, while developing countries will also begin reducing them in 2015. Therefore, by 2016, the demand for HCFC will continue to decline. For the HFC market, there was a rapid growth from 2001 to 2011, and it will continue to be an important substitute for HCFCs products in developing countries. However, due to the high GWP value of HFCs, their demand is limited, especially in Western Europe, where HFO products with low GWP values have become an important component of the market. For other fluorochemical products, due to the expanding demand for high-performance materials in the automotive engine, chemical process, electronics, and coating markets, the demand for fluororesin products is growing rapidly. Fluorine resin products have not yet been widely popularized in many regions of the world, which has brought huge space for market growth. Due to the rapid growth trend of global aluminum products, the growth rate of inorganic and special fluorine products will be close to the average level of the entire industry by 2016. In addition, the increase in production of semiconductors, batteries, and other electronic components will drive the demand for specialty gases and other high-value fluorochemical products.The Asia Pacific region will continue to be the largest market for fluorine chemicals, accounting for over half of global demand in 2016 and will develop rapidly. China will continue to benefit more from the fluorine chemical industry and become the world's largest market, with India ranking second. Thanks to the rapid expansion of the aluminum industry, the demand for aluminum fluoride is also constantly growing, benefiting some small countries in Eastern Europe and markets in Africa/Middle East. From a long-term perspective, although they experienced a decline from 2006 to 2011 and their current demand is on the rise, by 2016, the share of the United States, Western Europe, and Japan in the global fluorine chemical market will shrink.

Zhonghao Morning GloryFactory price 88000 yuan/tonProduct name: Disperse resin2012-11-23Jiangsu MeilanFactory price 82000 yuan/tonProduct name: Disperse resin2012-11-23Dongyue GroupFactory price of 93000 yuan/tonProduct name: Disperse resin2012-11-23Fuxin HengtongFactory price 95000 yuan/tonProduct name: Disperse resin2012-11-23