N-Methylpyrrolidone (NMP) is a highly polar aprotic signaling solvent with high boiling point, strong polarity, low viscosity, strong ability to dissolve problems, no corrosion, low toxicity, and good chemical and thermal stability. And it can be completely miscible with water. The main technology is used in coatings,NMP supplier lithium batteries, plastics, pharmaceuticals in the chemical industry production process, agrochemical knowledge products, removal, cleaning and degreasing, polymers as solvent systems and polymerization method reactions through solvents. and other fields.

So, what are the downstream applications of NMP?

1.Lithium-ion battery

Lithium-ion batteries are currently the most ideal secondary batteries and are widely used in portable electronic products such as laptops, mobile phones, and digital cameras. With the rapid development of the new energy industry, lithium-ion batteries have gradually become the main power batteries for power tools,nmp electric bicycles and electric vehicles. In addition, lithium-ion batteries also have important applications in the field of energy storage.

As one of the main raw materials in the manufacturing and development process of lithium-ion battery technology, NMP directly affects the quality of lithium-ion battery coating and environmental information protection requirements. According to the survey results of relevant industry companies,lithium from battery it can be analyzed that although differences in models and specifications will lead to different understandings of the proportion of NMP in the use value of lithium-ion batteries, in terms of the overall economy, the proportion of NMP in the manufacturing cost of lithium-ion battery vehicles is approximately 3%-6%. The market transaction size and demand of NMP are also growing with the growth of lithium-ion batteries, especially energy storage batteries and power batteries.

NMP is used to dissolve/expand PVDF and dilute slurries in lithium battery production. The requirement for moisture content is 99.9%.

2.Polymer materials

NMP is an important chemical solvent involved in chemical reactions and dilutions during the manufacturing process of polymer materials such as polyphenylene sulfide, aramid, polyphenylene sulfide, and polyimide. It directly affects the smooth completion of low-temperature polycondensation reactions and the transportation of material products.

Dissolved in polymers such as vinylpyrrolidone produced by cellulose and its derivatives, polyamide, polyimide composite resin, polyester, polystyrene, polyacrylonitrile, polyvinyl chloride, polyacetic acid, polyurethane, polycarbonate , polyethers and many copolymers.

NMP is mixed with the corresponding monomers, conventional organic solvents and water. Therefore, the optimal formulation of solvents for a specific application can be found.

For example, NMP is widely used in the prefabrication of semipermeable membranes. This type of membrane is used in separation processes such as ultrafiltration and reverse osmosis. Field water purification can be used for hemodialysis.

In addition, the development of products such as linear high-polymer fibers, films, tapes, etc. also brings some technical problems. The main difficulty lies in the technical flaw that solutions or plastic products can only remain corrosion-resistant, harmless and non-flammable at normal operating temperatures. NMP is important because it is suitable for processing highly concentrated mixed solutions or plastic compounds that can be produced from polyamides, polyacrylonitrile, polyvinyl chloride, polystyrene and cellulose triacetate. It can also be applied to vinyl fluoride homopolymers and polymers with different molecular structures when the ambient temperature is increased.

3. Electronic industry

NMR also has important applications in the electronics industry, such as integrated circuits, hard disks, and other industries that require strict control of metal ions and particles, such as oil removal, degreasing, dewaxing, polishing, rust, and paint, etc. NMR is also used to clean precision instruments in the integrated circuit semiconductor industry, liquid crystal displays, printed circuit boards and hard printed circuit boards.

For surface coatings, NMP is a non-corrosive high boiler with excellent performance using conventional solvents, chemical and thermal resistance. As a result, NMP improves the performance of many of our problem surface treatment coating technology systems. In particular, the study of the effects of these factors is beneficial to the vulcanization of dry coatings at relatively high operating temperatures. NMP is suitable for the production of paints filled with different heights, because it improves the rheological behavior and allows the paint to improve fluidity and coverage. Therefore, it makes the paint more uniform, non-porous, and crack-free, showing greater tolerance and better durability. High mechanical design strength. NMP is an excellent quality solvent for most of the main raw materials of coatings, such as acrylates, epoxies, polyurethanes, PVC market systems, enamel wire-based polyamides, water-based coatings and printing inks. NMP is also a useful solvent for butadiene acrylonitrile polymer (nitrile rubber) as a lining for standard containers. Rubber material mixing control solutions have better fluidity and leveling properties than those containing ketones. Vinyl chloride-vinyl acetate copolymer is soluble in a mixed solution of NMP and mononuclear aromatic hydrocarbons, and it can be used directly for injection molding through films. Under the action of the two solvents, the mixed solution has low viscosity and can be used at any time. Polyisocyanate containing imide groups, which can be dissolved in the solvent of NMP system. This knowledge solution analyzes rubber and its compounds that can be used on a wide variety of metal processing surfaces.

Wire materials, in the manufacturing and development process of thermosetting insulating coatings, a very important feature of NMP is its good dissolution ability for polycarboxylic acid structures and their anhydride substances, such as trimellitamine, phenylic anhydride, amide polymers and High aromatic content with different carboxyl groups. Therefore, it is necessary to react the polyisocyanate containing the amide group to form a condensation system reaction of the NMP mixed standard solution composed of social polycarboxylic acid anhydride and monomeric polyisocyanate. Contains dry oil flow affecting coatings with outstanding mechanical and dielectric properties between copper conductors. From a technical point of view, NMP has certain advantages in the operation of two main functions: in the manufacturing and production process we serve as a behaviorally reactive environmental medium, and the latter's coating serves as a working viscosity regulator. In the reaction of copolyester resin with diimide and polyol, NMP is also a suitable solvent for selection. Therefore, the solvent formed by the company can not only be dried and processed to form highly heat-resistant enamel wire. NMP is also used to manage solvents for polyamide/polyimide drying oils derived from condensation of tricarboxylic aromatic and aliphatic diamines.

4.Chemical chemicals

NMP has been widely used for large-scale recovery of hydrocarbon solvent purification.

This research technology takes advantage of the high solubility of hydrocarbons in NMP, but in fact the main difference is that the existence of NMP often leads to significant levels of various different volatilities. Compared with extraction with other chemical reaction solvents, NMP has the following advantages. No azeotrope develops with the hydrocarbons, and the heating time of the NMP is very important for stability.

NMP mixes easily with water in any proportion. This allows the processing technology to be analyzed and adjusted if necessary and to dissolve the dissolved hydrocarbons into the solvent. NMP has a correspondingly high boiling point at low pressure and can maintain such a value with minimal losses during separation management on an industrial scale. Low viscosity at actual representative temperatures is more conducive to the exchange of social materials.

Examples of applications in the petrochemical industry are as follows: NMP can be used to remove and purify acetylene from partially burned gases from saturated hydrocarbons.

5. Agricultural chemicals

NMP can be used as a solvent or co-solvent in the formulation of pesticides, fungicides, herbicides, and seed control products, and is highly needed in highly polar compounds. Very useful in multi-component systems.