As a synthetic water-soluble polymer compound, Polyvinylpyrrolidone has the general properties of water-soluble polymer such as colloidal protection, film formation, adhesion, moisture absorption, solubilization or cohesion, but it has the most significant characteristics.
Among synthetic polymers, Polyvinylpyrrolidone is soluble in water and most organic solvents, so it has low toxicity and excellent physiological compatibility.
Polyvinylpyrrolidone raw material butyrolactone is reduced, so it will definitely show good development prospects.
The following specifically introduces the application areas:
In medicine and health
Polyvinylpyrrolidone has excellent physiological inertia, does not participate in human metabolism, and has excellent biocompatibility, so it will not cause irritation to skin, mucous membranes and eyes.
Pharmaceutical grade PVP is one of the three new pharmaceutical excipients advocated internationally. It can be used as a binder for tablets and granules, a co-solvent for injections, and a lubricant for capsules.
Polyvinylpyrrolidone can be used as an antidote, retardant, lubricant and coating film-forming agent for eye drops, as a dispersant for liquid preparations and as a stabilizer for enzymes and heat-sensitive drugs. It can also be used as a cryopreservative. Used to increase the hydrophilicity and lubricity of contact lenses.
From a biological point of view, the molecular structure of PVP is similar to a simple protein model, and even its water-soluble ability to coordinate with certain small molecules can also be used by certain protein precipitation agents, such as ammonium sulfate. Trichloroacetic acid, tannins and phenols are also compatible with proteins.
Therefore, Polyvinylpyrrolidone Powder is widely used as an auxiliary raw material for medicine. Its specific applications are as follows:
- Used as a binder for preparations
- Co-precipitating agent
- As a co-solvent or crystal formation inhibitor in injections
- Coating or film-forming agent
- Controllable release of retarder and sustained-release drug can prolong the action time of the drug.
- Artificial vitreous and cornea
- Surgical bandage
- PVP iodine disinfectant.
In addition, PVP can also be used as a coloring agent and X-ray contrast agent; it can be used in tablets, granules, liquids and other dosage forms of drugs. It has the functions of detoxification, hemostasis, increasing the dissolved concentration, preventing peritoneal adhesions, and promoting erythrocyte sedimentation rate.
Food processing applications
Polyvinylpyrrolidone itself is non-carcinogenic and has good food safety. It can form complexes with certain polyphenolic compounds (tannins, etc.), and may have purifying and anticoagulant effects in fruit juice beverages to extend the shelf life.
The same effect can be achieved by using PVP in the production of wine and vinegar.
Polyvinylpyrrolidone used in tea beverages can appropriately reduce the content of tea polyphenols, PVP will not remain in tea beverages, and can be reused, which significantly saves costs.
In daily cosmetics
In the consumption structure of Polyvinylpyrrolidone, the cosmetics industry in developed countries accounts for 30-50%.
Polyvinylpyrrolidone has extremely low toxicity and low physiological inertia, so it is not irritating to skin and eyes.
In daily cosmetics, Polyvinylpyrrolidone and copolymers have good dispersibility and film-forming properties. Polyvinylpyrrolidone can protect the colloid in the emulsion, so it can be used as a styling liquid, hair spray and rubbing in fat and fat-free pastes.
It can also be used to make silk curing agent, hair conditioner sunscreen, shampoo foam stabilizer, wave setting agent, hair dye dispersant and affinity agent, etc.
Adding PVP to creams, sunscreens, and hair removal products can increase moisturizing and lubricating effects.
Polyvinylpyrrolidone has anti-redeposition properties and can be used to prepare transparent liquid detergents or heavily polluted detergents. Polyvinylpyrrolidone is added to the detergent to have a good anti-rotation effect and improve washing ability.
Can avoid the influence of synthetic detergent, especially for synthetic fibers, skin irritation is more obvious than carboxymethyl cellulose (CMC) detergent.
Polyvinylpyrrolidone can be mixed with borax as an effective ingredient in phenolic disinfectant detergent formulations.
The mixture of solid PVP and hydrogen peroxide has bleaching and bactericidal effects.
Polyvinylpyrrolidone has good affinity with many organic dyes, and can be combined with hydrophobic synthetic fibers, polyacrylonitrile, esters, nylon and other fiber materials to improve dyeing power and hydrophilicity.
Coatings and pigments
Paint and paint coated with Polyvinylpyrrolidone form a transparent film without affecting the natural color, improve the gloss and dispersibility of paint and pigments, improve thermal stability, and improve the dispersibility of inks and inks.
Polyvinylpyrrolidone is a polymer surfactant that can be used as a dispersant, emulsifier, thickener, leveling agent, particle size agent, anti-settling agent, coagulant, cosolvent and cleaning agent in a variety of dispersion systems Agent.
Polyvinylpyrrolidone can be used as a gelling agent for tertiary oil recovery to improve oilfield recovery.
As an auxiliary agent for photosensitive materials, it reduces the degree of latex and improves the coverage of the developed image.
Polyvinylpyrrolidone can be used as a thickener, dispersion stabilizer and adhesion regulator in the polymer polymerization process.
Dispersant for paper industry, co-catalyst for propylamine gasification reaction.
The application of PVP in diaphragms, light-curing resins, laser disks, drag-reducing coatings, building materials, steelmaking and electroplating is also increasing.