PEG-150 Distearate CAS 9005-08-7

PEG 150 Distearate, also known as C18H35O2*, is a chemical compound with the molecular formula: C2H4O N *H. This chemical compound is used in cosmetics and pharmaceuticals.

Description of PEG 150 Distearate:

Hydrophilic and lipophilic balance: Since the polyethylene glycol part has good hydrophilic properties and the stearic acid part is hydrophobic, PEG 150 distearate has a balance of hydrophilic and lipophilic properties. This property enables it to show good solubility and dispersion in water and oil media and is often used to prepare emulsions, microemulsions, nanoparticles, etc.

Stability: PEG-150 distearate has good chemical stability at room temperature, and hydrolysis, oxidation, and other reactions are difficult. In addition, due to its hydrophilic and lipophilic balance, PEG 150 distearate has certain salt-resistant, acid-resistant, and alkali-resistant properties and can maintain stability under different pH values and salt concentrations.

Wettability and permeability: Therefore, in the fields of cosmetics, pesticides, textiles, printing and dyeing, metal processing, and other fields, PEG 150 stearate is often used as a wetting agent, penetrant and other additives to help the uniform dispersion and penetration of liquids.

Biocompatibility and biodegradability: PEG 150 distearate also has good biosafety in organisms due to the good biocompatibility of the PEG part. At the same time, the compound has a certain biodegradability and can be decomposed into harmless substances by microorganisms in the natural environment, reducing environmental pollution.

Surface activity: Due to its unique hydrophilic and lipophilic balance, PEG 150 distearate also has significant surface activity. It can be used as an emulsifier and wetting agent in preparing emulsions, foams, suspensions and other systems, contributing to liquids' stability and uniform dispersion.

Rheological behavior: PEG 150 distearate can change the rheological properties of the system, and its rheological behavior can be controlled by adjusting the molecular weight and the length of the PEG chain. This makes PEG 150 distearate important in preparing emulsions, foams, suspensions and other systems.

Crystallinity and plasticity: Due to the crystallinity of stearic acid, PEG 150 distearate also has certain crystalline properties. This crystalline property may be beneficial in some applications, such as in the preparation of microcapsules, drug delivery, etc., where its crystallinity can be controlled. At the same time, because of its plasticity, the compound also has a certain application in the preparation of soft film, coating and so on.

Viscosity: Due to the long chain structure of the polyethylene glycol part, PEG 150 distearate has a high viscosity. This viscosity property makes it advantageous in preparing high-viscosity systems, such as emulsions or suspensions.

 Technical Parameters of PEG 150 Distearate

Applications of PEG 150 Distearate  :

Cosmetics Industry: PEG 150 distearate is mainly used as an emulsifier, wetting agent and thickener in cosmetics. It can effectively reduce the interfacial tension of oil and water, improve the wettability and permeability of products, and make cosmetics more easily absorbed by the skin. At the same time, PEG 150 distearate also has certain antibacterial properties, which help to maintain the hygiene and safety of cosmetics. PEG 150 stearate is widely used as the main ingredient or auxiliary ingredient in cosmetics such as creams, lotions, shampoos, and body washes.

Textile and printing industry: PEG 150 distearate is mainly used as a softener, antistatic agent, and penetrant. It can improve the feel, gloss, and antistatic properties of the fabric, the printing and dyeing effect, and the quality of the fabric. At the same time, PEG 150 stearate can also be used as dyeing AIDS, fixing agents, etc., to improve dyes' coloring effect and durability.

Paints and coatings industry: PEG 150 stearate is primarily used as a wetting agent, leveling agent and dispersant in paints and coatings. It can improve the fluidity and leveling of the paint, improve the coverage and uniformity of the paint, and make the coating smoother, more uniform, and more beautiful. At the same time, PEG 150 distearate can also inhibit the settlement of pigments and fillers and extend the service life of coatings.

Pharmaceutical industry: In the production of drugs, PEG 150 stearate can be used as a drug carrier, drug emulsifier, etc. It can effectively disperse drug components uniformly in the medium and improve the stability and bioavailability of the drug. At the same time, PEG 150 distearate also has lower toxicity and better biocompatibility, so it is also used in some medical devices and pharmaceutical excipients.

Agriculture: PEG 150 distearate is mainly used as an emulsifier, wetting agent and thickener in pesticides and fertilizers. It can improve the wettability and adhesion of pesticides, making it easier for pesticides to adhere to plant surfaces and play a role. At the same time, PEG 150 distearate can also improve fertilizer's solubility and permeability, improving fertilizer's utilization rate and absorption effect.

Production Method of PEG 150 Distearate  :

Raw material preparation

PEG 150 distearate includes polyethylene glycol 150, stearic acid, catalyst, and appropriate water. Among them, polyethylene glycol 150 provides the hydrophilic part; Stearic acid provides the hydrophobic part; The catalyst is used to accelerate the reaction process; 

Production steps

Esterification reaction: Stearic acid and polyethylene glycol 150 are esterified under a catalyst to produce PEG 150 distearate and by-product water. This step is the key to the entire production process, and it is necessary to control the conditions of the esterification reaction, such as temperature, pressure, reaction time, etc., to ensure the complete esterification reaction and the stability of the product. Usually, under the protection of an inert gas, a mixture of dry stearic acid, PEG150, catalyst, and solvent is heated to a certain temperature for esterification. Common catalysts include sulfuric acid, phosphoric acid, p-toluene sulfonic acid, etc.

Dehydration and alcoholysis: The product of esterification may contain unreacted stearic acid and water. Therefore, dehydration and alcoholysis are required to remove excess water and unreacted stearic acid. This step usually uses heating, vacuum, or centrifugation to separate the water and the unreacted stearic acid from the product.

Refining and purification: The products obtained after dehydration and alcoholysis may also contain some by-products and impurities. Therefore, refining and purification steps are required to improve the purity and stability of the product. This step typically removes impurities and by-products by filtration, recrystallization, or extraction.

Drying and packaging: The resulting PEG 150 distearate is dried and packaged for subsequent application. When drying, attention should be paid to controlling temperature and humidity to avoid degradation or caking of PEG 150 distearate. At the same time, it is also necessary to choose the appropriate drying method and equipment according to the actual situation to improve product quality and production efficiency.

PEG 150 Distearate Packing & shipping:

PEG-150 Distearate packaging is available in many different types.
PEG 150 Distearate Packing 1kg/bottle. 25kg/barrel. 200kg/barrel.
PEG 150 Distearate shipping After payment, you can ship your order by air, sea or express.

PEG150 Distearate Property    

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