Po1y(ethylene pyrrolidone) is a polymer formed from the polymerization of ethylene pyrrolidone monomer. PVP has unique three-dimensional structure and physical and chemical properties, and is widely used in medicine, cosmetics, food and industry. structureThe molecular structure of PVP is formed by polymerization of vinylpyrrolidone monomer (n-vinylpyrrolidone). The vinylpyrrolidone molecule consists of a pyrrolidone ring and a vinyl group. In the polymerization process, the vinyl reacts with oxygen atoms on the pyrrolidone ring to form a polymerization chain. The molecular weight of PVP can be controlled by adjusting the amount of vinylpyrrolidone monomer and the polymerization conditions. The three-dimensional structure of PVP is mainly determined by the conformation of the polymerization chain. Due to the limitation of the bond length and bond Angle between vinyl and the oxygen atom on the pyrrolidone ring, the PVP polymerized chain presents a curved conformation. This conformation makes PVP have high solubility and fluidity, can…

What solvent does pvp dissolve inWater, methanol, ethanol, propylene glycol, glycerin, organic acids and their esters, acetone, trichloromethane, etc. pvp is the abbreviation of polyethylpyrrolidone, pvp is a non-toxic water-soluble polymer compound, has a good film formation, the average molecular weight of the number of PVP used in medicine in 10,000- 40,000. pvp can not only be miscible with water, but also dissolve in many alcohols, carboxylic acids, amines, halogenated hydrocarbons and other organic solvents. Solubility and solution properties of PVPThe solubility of a substance in different solvents is closely related to its structure. The molecular groups of PVP have both hydrophilic groups and oleophilic groups, so it can have affinity with many solvent molecules, so that it can be miscible with water, and can be dissolved in many alcohols, carboxylic acids, amines,halogenated hydrocarbons and other organic solvents. The solubility of PVP in water is limited only by the viscosity…

INCI Name: PentyleneGlycol CASNo. : 5343-92-0 Product features: 1, broad-spectrum antibacterial activity, can effectively inhibit gram-negative bacteria, positive bacteria, yeast and mold; 2. Pentadiol, as an emollient, has good skin moisturizing properties, can reduce the loss of water in the skin, make the skin soft and smooth, and improve the skin moisturizing function of skin care products. 3. Pentanediol is a multi-functional ingredient with excellent inhibition of microorganisms. Its ingredients are not registered as preservatives, but are used in cosmetics and fully support the concept of “zero added preservatives”. 4, mild and non-irritating, reduce the irritation and allergy caused by preservatives, and is a high-purity liquid emollient with a broad spectrum of antibacterial action, classified as emollient, very mild, in line with international regulatory trends, widely used around the world. 5, compatibility is very good, can be added to the oil phase, can improve the water resistance of the sunscreen…

1, 2-pentanediol (1, 2-pentanediol) is a versatile ingredient widely used in cosmetics, often used in skin care products, makeup, shampoo and other products. 1, 2-pentadiol is like a “versatile warrior” in cosmetics, which can show multiple characteristics in different products, not only has a moisturizing effect, but also has a bactericidal and thickening effect. It is like a universal beautician who can both skin care and makeup, and also shampoo your hair, and can provide comprehensive care for your skin and hair.   01Moisturizing effect 1, 2-pentanediol is often used as a moisturizer in cosmetics to improve the skin’s ability to retain moisture by increasing the moisture content on the skin’s surface. At the same time, 1, 2-pentanediol can also enhance the role of other moisturizers and improve the moisturizing effect of the product. 02Bactericidal action 1, 2-pentanediol also has a certain bactericidal effect, which can inhibit the growth of…

1,2 pentadiol is a multi-functional, highly stable, widely used in cosmetics raw material, it has moisturizing, antibacterial, solubilizing and other effects, but also can improve the water resistance of sunscreen products, with a certain anti-corrosion effect, at the same time has a slight irritation to the eyes, no irritation to the skin. 1, 2-pentadiol has broad-spectrum antibacterial activity, and can also play a role in moisturizing and conditioning skin. It is often added to skin care products, suitable for sensitive skin, infants and other delicate skin, as well as aging and dry skin care, and can also be used for hair care. 1, 2-pentanediol products for personal care products have high purity, colorless, odorless, and no irritating impurities. The efficacy of 1,2 pentadiol 1. Moisturizing: increase the water content of the skin, with high quality moisturizing performance; 1.2-pentanediol is a kind of moisturizing agent with good effect. When added to…

The application of 1, 2-pentadiol is relatively many, it will be used in cosmetics, and it is relatively mild. After making cosmetics into cosmetics, it can be directly applied on the face, and will not cause skin allergies or serious color spots and other problems. In addition, it can also be made into an important intermediate of fungicide and propiconazole, and the composition content is at least 10% or more, which has the effect of anti-corrosion. 1, 2-pentanediol is an active ingredient that is difficult to dissolve and is found in many skin care products. For example, eye cream, skin care products, baby care products, there is a certain amount of inclusion, relatively mild. We do not have to worry about the skin will not adapt to the situation, after deep processing, the safety factor is relatively high, and there is no special pungent taste. Although many physical and chemical…

1, 2-hexanediol (1, 2-hexanediol) is a polyol that is not currently listed as a preservative, but is defined as a moisturizer and osmotic aid. Usually the amount added is about 5%, it will have a clear anti-corrosion effect. Therefore, brands mostly take such ingredients, replace preservatives, and claim to be preservative- free formulations. However, the antibacterial effect of this kind of ingredients is more negative, and whether the pollution during the use of the opening is more difficult to grasp. However, for the preservation of the product after opening, its antibacterial effect can not be compared with real preservatives. Because the anti-corrosion environment after opening is very different from the anti-corrosion environment when sealing, the storage life of preservative-free products also tends to be conservative. Cosmetic grade 1, 2-hexanediol Efficacy and effect 1, 2-hexadiol is commonly used as a humectant. However, when 1, 2-hexadiol is added to skin care products,…

1, 2-hexadiol is an organic substance, often used in cosmetics, and has many effects on the skin, such as moisturizing, moisturizing, antibacterial and so on. 1, moisturizing: 1, 2-hexadiol is a common moisturizing agent, with strong hygroscopic property, water retention performance is also better, can prevent excessive loss of skin moisture, moisturizing duration is relatively long. Product performance:High purity ≥99.8%, colorless and odorless, with differentiated quality. It is a multi-functional cosmetic additive approved worldwide, with a broad spectrum of antibacterial activity and excellent moisture retention, and high formula flexibility. Efficacy and Application:As a moisturizing agent with anti-corrosion and antibacterial properties, it is widely used in cosmetics and personal care products.Can be used in combination with a variety of preservatives, has a synergistic effect, can enhance the skin feeling of the formula. 2, moisturizing: 1, 2-hexanediol penetration is relatively strong, can penetrate deep into the skin, moisturize dry skin, keep the…

1, 2-hexadiol is a kind of polyol, colorless and transparent in appearance, with mild sweet flavor. As a cosmetic raw material, it has a good bactericidal and moisturizing effect (antibacterial mechanism: it can enter the cell membrane of microorganisms, then destroy the integrity of the cell membrane, let the cell fluid penetrate out, and finally lead to the death of microorganisms). At the same time, it has no sensitive side effects on human skin. It is precisely because 1, 2-hexadiol has antibacterial effects and is not on the list of preservatives that it is often used as an alternative preservative in non-preservative systems. Step 1 Moisturize Kong Qiucan et al. studied the moisturizing effect of 1, 2-hexanediol. The moisturizing effect of 0.5% 1, 2-hexanediol is slightly better than 3.0% glycerol, which has a very good moisturizing effect. Moreover, the viscosity of 1, 2-hexanediol is lower than glycerol, and it has…

It is a diol (* 1) with refreshing and excellent antibacterial properties, and also alkanediol, a polyol with high antibacterial properties. * 1 polyols have extremely high hygroscopic and water-retaining properties, so they are the most commonly used moisturizers in cosmetics. The name “alcohol” is misleading, but ordinary alcohol (ethanol) is a mono alcohol, and polyols and mono alcohols (ethanol) are different substances. Effect and efficacy of 1, 2-hexadiol on skin 1, 2-hexadiol is a colorless and transparent liquid, which is often used as humectant and solute in skin care products. Under normal circumstances, the appropriate use of this substance has a certain hydration effect on the skin and the effect of helping to improve the skin. 1, 2-hexadiol can be combined with water in the air into a molecular film, so as to play a water-locking effect, help to maintain the water balance in the skin, so it is…