Efficient thickening and mild stability: full analysis of the performance of Carbopol 940

Basic performance characteristics

Carbopol 940 appears as a fluffy white powder with certain hygroscopic properties and a slight special odor. This raw material can be dispersed in various solvent systems such as water, ethanol, and glycerol. In practical applications, the conventional addition amount is usually controlled within the range of 0.1% to 3.0%, and the formulator can flexibly adjust it according to the viscosity requirements of the target product.

It is worth noting that there are a large number of carboxyl groups in the molecular structure of Carbopol 940, which makes its aqueous solution acidic. To reduce potential irritation to the skin and mucous membranes, it is recommended to use alkaline substances in the formula for neutralization before use, which is also an important step in exerting its thickening function.

Carbopol 940

Neutrality regulation characteristics

Carbopol 940 has a wide range of neutralizing agents, including inorganic bases such as sodium hydroxide, potassium hydroxide, potassium bicarbonate, borax, as well as polar organic amine substances such as amino acids and triethanolamine. In non-polar systems, laurylamine and stearylamine can also be used as effective neutralizing agents.

The viscosity of the neutralized carbomer hydrogel can reach a high level in the pH range of 6 to 11. When the ambient pH value is lower than 3 or higher than 12, the viscosity of gel will decrease. In addition, if there are strong electrolyte components in the formula, it may also have a certain impact on the viscosity of gel. In terms of stability, Carbomer gel is sensitive to light, and is prone to mold growth and viscosity decline after long-term exposure to sunlight. Adding an appropriate amount of antioxidant in the formula helps to slow down this process.

Thickening application value

Carbomer 940 has attracted much attention due to its highly effective thickening ability, which can prepare clear and transparent aqueous or ethanol hydrogel systems. Its rheological properties are unique and suitable for use in various types of cosmetic formulations.

In the skin care category, it can be used for the preparation of moisturizing cream, lotion and facial cleaning products to help improve the texture and feel of the products. In sunscreen products, it helps to form a uniform and stable system. In addition, it can also be used in alcohol free perfume, essence and hair care products. For example, when used in hair care agents, it can help enhance the luster of hair and make combing more smooth.

From the perspective of usage cost, Carbopol 940 can demonstrate good thickening effect at a lower dosage. When the conventional dosage is between 0.25% and 0.5%, lotion, creams, gel and transdermal preparations with wide viscosity range and different rheological properties can be prepared. This high efficiency makes it one of the choices in formula design that balances performance and economy.

Carbopol 940 occupies an important position in the fields of cosmetics and personal care products due to its thickening efficiency, transparency performance, and wide applicability. Understanding its performance characteristics and usage points can help formulators better leverage the advantages of this raw material and develop products with stable quality.

product packaging

The carbomer sold by Hubei Xindesheng Material Technology Co., Ltd. is a very fluffy white powder substance that becomes a viscous transparent substance after preparation. Adding it to various skincare products not only does not affect its effectiveness or appearance, but also has certain benefits. If you have any relevant procurement needs, please click on our official website to learn more details or contact us!