AMPS is widely used in textile (spinning and dyeing), plastics, paper making, coating, sewage treatment, oil exploitation and other industrial production, and has produced anti-static agents, colorants, dispersants, water absorbents, flocculants, foam stabilizers, special coatings, oilfield chemicals, etc. with excellent performance. At present, this product has been widely used in many fields in China, especially in the water treatment agent production industry, and has become a raw material for new technology products from many manufacturers. The polymer of this product has also received great attention in the field of oilfield tertiary oil recovery, and is one of the indispensable raw materials for improving tertiary oil recovery production; The acrylic fiber production industry has been widely used abroad, and domestic industry experts also have a consensus that it is the three essential products for China's acrylic fiber industry to face challenges and upgrade products after joining the WTO. In summary, the extraordinary application value in various fields has been fully reflected and recognized, and it is expected that the application in these fields will become increasingly widespread, and the market demand and price are also worth looking forward to.
1. Water treatment field
One of the main uses of AMPS is for producing water treatment agents. At present, research and production of this product in the field of water treatment agents have been widely carried out in China, especially in the study of the most widely used water treatment agents in industrial cooling water systems, organic phosphonic acid and carboxylic acid copolymers. For example, the POCA developed with this monomer combines the advantages of organic phosphonic acid and carboxylic acid copolymers. Not only is the phosphorus mass fraction low (<5%), which meets environmental protection requirements, but the introduction of sulfonic acid groups enhances its hydrophilicity, Improved its ability to resist cationic precipitation and enhance its dispersibility. Compared with current water treatment agents such as HEDP (Organic Phosphonic Acid: Hydroxyethylene Diphosphonic Acid), HPMA (Carboxylic Acid Copolymer: Hydrolyzed Polymaleic Anhydride), HS-312 (Sulfonic Acid Copolymer), PBTCA (Phosphonic Anhydride), POCA not only has good scale inhibition and dispersion performance, but also has certain corrosion inhibition performance, with better overall performance. In recent years, with the increasing attention paid by countries around the world to environmental protection, the treatment of various wastewater has become particularly important. It is believed that the market demand for this product will increase year by year. At present, the application of AMPS in water treatment agents accounts for one-third of the world's production. AMPS homopolymers or copolymers with monomers such as acrylamide and acrylic acid can be used as sludge dewatering agents for wastewater purification; It can also be used as a scale remover and inhibitor for heaters, cooling towers, air purifiers, and gas purifiers; Used as a preservative for iron, zinc, aluminum, copper, and their alloys in a closed water circulation system. A large amount of literature indicates that using AMPS copolymer as a water treatment agent has the characteristics of low dosage and better effect than existing polyacrylamide water treatment agents.
2. Textile and dye industries
AMPS is an important monomer for improving the comprehensive performance of certain synthetic fibers, especially acrylic or nitrile chlorinated fiber, with a dosage of 1% to 4% of the fiber. It can significantly improve the whiteness, dyeing, anti-static, breathability, and flame retardancy of the fiber. The modified acrylic fiber can be dyed in various colors, increase moisture absorption, make acrylic cellulose closer to natural wool, improve spinning process, enhance spinnability, enhance the luster, chromaticity, and water absorption of acrylic products, and greatly improve flexibility. It is precisely because of these advantages that this monomer has been widely used in many acrylic factories in the United States, the United Kingdom, Italy, India, and other countries.
At present, apart from a few manufacturers in China, AMPS acrylic fiber has not been widely used. Generally, sodium methacrylate sulfonate and sodium styrene sulfonate are used as three monomers, or no three monomers are used at all, and only binary copolymerization is carried out (such as Anhui Anqing Acrylic Fiber Factory). Therefore, the quality of domestic acrylic fiber products is generally poor. Faced with fierce competition in the international acrylic fiber market, coupled with a certain gap in quality and specifications between China's acrylic fiber and foreign acrylic fiber, in order to enhance the competitiveness of enterprises, domestic acrylic fiber manufacturers have begun to actively research and demonstrate this technology.
3. Petroleum industry
Water soluble polymers have important applications in the petroleum industry, and are widely used in various operations such as drilling, cementing, completion and repair, and improving oil recovery rate (EOR). AMPS has a wide range of applications in the field of oilfield chemistry, including drilling fluid treatment agents, oil well cement additives, acidifiers, fracturing agents, additives for completion and repair fluids, water plugging agents, tertiary oil recovery and displacement agents, dispersants, oily wastewater treatment agents, etc. The most common are binary, ternary, and multicomponent water-soluble copolymers formed by AMPS with monomers such as acrylamide, acrylic acid, acrylonitrile, N-ethylpyrrolidone, N, N-dimethylacrylamide, etc. The ternary copolymer made of AMPS, methacrylic acid, and acrylamide can be used as a cementing cement admixture, which can have a good high-temperature retarding effect; Copolymers with N, N-dimethylacrylamide can be used as fluid loss agents for oil well cement slurries; The graft copolymer of AMPS with calcium lignosulfonate and acrylamide is a good distribution agent, early strength agent, and reinforcing agent for cement slurry; The graft copolymer of AMPS with acrylic acid, tetrahydrobenzoic acid, lignosulfonic acid, etc. can be used to prepare drilling fluid dispersants, stabilizers with good calcium resistance, viscosity reducers, filter loss reducers, etc. In addition, AMPS and N-vinylpyrrolidone block copolymers can be used as viscosity enhancers for tertiary oil recovery. They do not degrade when used under high temperature, high pressure, and high shear conditions, and have good stability.
Research has shown that the binary and ternary copolymers of AMPS and several monomers can be directly used in drilling fluids. Mixing an appropriate amount of low molecular weight and high molecular weight copolymers of this type can greatly improve the performance of drilling fluids. AMPS, as an effective modified monomer, has penetrated into various fields of polymer modification in oilfield chemistry, and to a large extent, it has indeed solved the three most challenging issues of salt resistance, temperature resistance, and shear resistance. At present, domestic oilfield chemistry professionals have begun to use AMPS for the synthesis of EOR polymers and drilling mud additives, and have achieved preliminary results. Oil, as an extremely important and non renewable strategic resource, is attracting global attention. With the gradual depletion of oil resources, the difficulty of oil extraction is increasing, which will inevitably drive the rapid development of the oilfield chemical industry and provide huge market space for AMPS.
(1) Oil well cement admixture
The ternary copolymer prepared with AMPS, methacrylic acid, and acrylamide is suitable for various saline slurries and can play a good high-temperature retarder role. The copolymer of AMPS and acrylic acid, the copolymer of AMPS and N, N-dimethylacrylamide, and carboxymethyl hydroxylamine launched by Halliburton in the United States