Carbomer Polyacrylic Acid Carbopol 940 9003-01-4

��发布时间：2025-03-27 ��浏览次数：1054次

 Chemical Name: Carbomer (Polyacrylic Acid, Carbopol 940)

CAS Number: 9003-01-4

Molecular Formula: C3H4O2

Molecular Weight: Approximately 72.06 g/mol (depending on polymerization degree)

Appearance: White to off-white amorphous powder

Solubility: Insoluble in water but forms a gel-like substance in water

Storage Conditions: Store in a dry, cool place, avoid humid and high-temperature environments

What is Carbomer (Polyacrylic Acid, Carbopol 940)?
Carbomer is a high molecular weight polymer commonly used in cosmetics, pharmaceuticals, and other personal care products. It is a synthetic acrylic polymer with a strong thickening effect, capable of forming a transparent, viscous gel. Carbomer is frequently used in emulsions, gels, ointments, and cleansers, as it can enhance product stability, improve texture, and improve the user experience, particularly in products that require a smooth feel and moisturizing effect.

Carbomer (Polyacrylic Acid, Carbopol 940) Functions and Applications

Thickening Effect

One of the main applications of Carbomer is as a thickening agent. In cosmetics and personal care products, it is often used to adjust the viscosity of the product. It provides ideal thickness and stability, playing an important role in gels, emulsions, and cleansers. By controlling the concentration of Carbomer, the viscosity and texture of the final product can be adjusted.

Stability Enhancement

Carbomer effectively improves the stability of cosmetics and pharmaceuticals. It helps to improve the uniformity of the formulation, prevent ingredient separation, and increase the stability of suspensions. This makes formulations containing water more stable and helps extend the product's shelf life.

Gel or Cream Texture Formation

In skincare products, Carbomer is commonly used to create gels and creams. Due to its efficient thickening ability, it provides a good gel-like feel and smooth sensation for water-based products, enhancing the user experience. For example, many face creams, eye creams, and cleansing gels contain Carbomer.

Moisturizing Effect

Carbomer helps improve the moisturizing effect of skincare products. It forms a thin film on the skin, reducing moisture evaporation and keeping the skin hydrated, making it especially suitable for dry or sensitive skin. Due to its high water absorption properties, Carbomer provides long-lasting lubrication and hydration on the skin.

Pharmaceutical Applications

In the pharmaceutical field, Carbomer is also widely used, especially in topical drug formulations such as gels, creams, ointments, and eye drops. It helps evenly disperse active ingredients and provides stability, ensuring the longevity and release of the drug's effects.

Controlled Drug Release

In pharmaceutical products, Carbomer is sometimes used as a controlled-release agent. In drug formulations, Carbomer can control the rate at which the drug dissolves, extending the release time of the drug and improving its therapeutic effects.

Synergistic Effect with Surfactants

Carbomer also works synergistically with surfactants to increase the lubrication and comfort of the product. Its unique structure can enhance the efficiency of surfactants and improve the application effect of the product, especially in cleansing and washing products containing surfactants.

Carbomer (Polyacrylic Acid, Carbopol 940) Side Effects and Safety
Carbomer is generally considered safe and does not cause significant irritation to the skin. It is a widely tested and approved additive commonly used in personal care products. However, in rare cases, individuals with sensitive skin may experience mild discomfort or irritation from products containing Carbomer, such as redness or dryness. It is recommended to perform a patch test on a small area of skin before first use to ensure no allergic reaction occurs.

Conclusion
Carbomer (Polyacrylic Acid, Carbopol 940) is an efficient thickening agent widely used in cosmetics, pharmaceuticals, and other personal care products. By providing suitable viscosity, enhancing product stability, improving texture, and promoting moisturization, it has become an essential ingredient in many skincare and pharmaceutical products. In addition to its thickening effect, Carbomer also plays a vital role in topical drug treatments, controlled-release drug formulations, and enhancing lubrication, making it a popular ingredient in everyday skincare and therapeutic products.