基于混料实验设计优化天然来源成膜剂的制备及应用.

曾兰兰; 刘玲玲; 黄红斌; 黄诗博; 温丽君; 李泽湃

Film forming agent is added to cosmetics to form a film on the skin surface to improve the skin sticking and makeup holding of base makeup products. Chemical film forming agent has some problems, such as skin feeling sticky, poor skin compatibility, poor biodegradability, and burden on skin caused by long-term use. In order to obtain a natural film-forming agent, the polysaccharides of Tremella fuciformis, Bletilla striata and peach gum were studied. The present study focuses on the extraction of natural polysaccharides from Tremella fuciformis, Bletilla striata and peach gum. The composition composed of three kinds of polysaccharide was optimized by mixture design with the film's tensile strength, elongation at break, and contact angle with artificial sweat and sebum. The optimal composition was figured out by the regression models built for each evaluation indexes and obtain natural film forming agent, followed by evaluating its efficacy on the human body. Results showed that the suitable composition of polysaccharides was as follows, when m (Tremella fuciformis) ∶m (Bletilla striata) ∶m (peach gum) is 0.2∶0.25∶0.55, the film exhibits a tensile strength of 3.18 MPa, elongation at break of 126.60%, and a contact angle of 86.03 (°) . The verification test proved the predicted value was consistent with the actual value, indicating the regression models were valid. Simultaneously, human testing results indicate that incorporating a natural film-forming agent with a mass fraction of 0.15% into the liquid foundation matrix enhances skin stratum corneum hydration and imparts long-lasting cosmetic effects.

CONTACT angle; TENSILE strength; PEACH; HUMAN body; REGRESSION analysis

Chinese Journal of Applied Chemistry, 2024, Vol 41, Issue 12, p1721

1000-0518

Academic Journal

10.19894/j.issn.1000-0518.240169