Purpose:
PVP (PVP K90) as a synthetic water-soluble polymer, a water-soluble polymer of the general nature of the protective colloid effect, film, adhesion, moisture, solubilization, or cohesion, but its most characteristics, and thus subject to people's attention is its excellent solubility and physiological compatibility. In synthetic polymers such as PVP both soluble in water, but soluble in most organic solvents, low toxicity, good physiological compatibility and rare, especially in the pharmaceutical, food, cosmetics these closely related with people's health field, along with its lower prices of raw materials butyrolactone, will demonstrate its good prospects for development. The following is a detailed description of its application areas:
Medicine & Health
PVP has excellent physical inertia, not involved in human metabolism, but also has excellent biocompatibility, skin, mucous membranes, eyes, which do not form any stimulation. From a biological point of view, PVP molecular structure of the protein features a simple model of similar kind of structure, even its water-soluble to some small molecules with the ability of some proteins and can be ammonium sulfate precipitant, trichloroacetic acid, tannic acids and other characteristics of the precipitated proteins and also compatible. So that the PVP is widely used as materials of pharmaceutical preparations, specific applications as follows: ① ② for the preparation of a binder as precipitant ③ Injection cosolvents or crystal formation preventing agent or a coating film-forming agent ④ ⑤ delay, release agents prolong the drug controlled release duration of action of drugs artificial vitreous and cornea ⑥ ⑦ ⑧ PVP iodine surgical dressings disinfectant. In addition, PVP can also be used as a colorant and a X-ray contrast agent; for tablets, granules, liquid drugs and other forms, with detoxification, bleeding, increased concentration of dissolved prevent peritoneal adhesions, to promote sedimentation and so on.
Food processing
PVP itself is not carcinogenic, good food safety, to the specific polyphenol compounds (such as tannins) form a complex in the food processing primarily as beer, fruit juice, wine and other foods clarifying agents and stabilizers.
Daily cosmetics
In PVP, consumption structure, the cosmetics industry in developed countries accounted for 30% to 50%, China accounted for 70% to 80%. Because PVP has a very low toxicity and physiologically inert, it skin, eye irritation, in the field of medicine has a long record of use, so it is safe for cosmetics. In daily use cosmetics, PVP and copolymers with good dispersion and film-forming properties, PVP in the emulsion has a protective colloid can be used for fatty and non-fatty cream that is used for setting lotions, hair sprays and Mount silk styling agent, hair sunscreen agents, shampoo foam stabilizer agents for hair styling wave dispersing agent and the affinity agent. In cream, sunscreen, depilatories adding PVP, can enhance wetting and lubricating effect.
Detergent field
PVP has anti-soil redeposition performance for the preparation of transparent liquid or heavy dirt detergent, the detergent is added PVP has a good anti-turn color effect, and can enhance the washing ability, wash fabric of synthetic detergent to prevent skin irritation, especially for fibers, this performance than carboxymethyl cellulose (CMC) type detergent more prominent. PVP complex with borax, phenol disinfectant cleaner formulation as the active ingredient. PVP with hydrogen peroxide in the solid detergent compound, a bleaching effect of killing bacteria.
Textile
PVP and many organic dyes have a good affinity, which can be used with polyacrylonitrile, esters, nylon, and hydrophobic fibrous materials, synthetic fibers, and to improve dyeability and hydrophilicity.
Paint and color
PVP coated with paint, paint transparent film without affecting the color, to improve the coating and paint gloss and dispersibility, improved thermal stability and can improve the dispersibility of the ink and other inks.
Polymer Technology
Polyvinyl pyrrolidone as a polymer surfactant dispersion in different systems, can be used as dispersants, emulsifiers, thickeners, leveling agents, particle size adjusting agents, anti-redeposition agents, flocculants, solvent and washing agent.
Other aspects
PVP can be used as a gelling agent tertiary oil recovery, enhanced oil oil recovery rate. As a photosensitive material is latex additive helps to reduce the developed image and enhanced degree of coverage. Polymerization process the polymer as a thickening agent, a dispersion stabilizer and adhesion regulating agent. In the paper industry as a dispersing agent in the gasification of acrylamide as a cocatalyst. PVP in the membrane, light-cured resin, laser disc, drag-reducing coatings, building materials, steel and electroplating and other fields are also rising.
More about:PVP K90 supplier
From:Chem pharma
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