heptamethyltrisiloxane factory&supplier
Heptamethyltrisiloxane
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Polyether-modified heptamethyltrisiloxane (CAS: 27306-78-1) is a nonionic surfactant of silicone-polyether copolymer. It has a molecular weight of 338.66. Its molecule consists of a hydrophobic heptamethyltrisiloxane backbone and hydrophilic polyether segments. Featuring ultra-low surface tension, outstanding spreading and penetrating capacity and excellent compatibility, it serves as an essential functional raw material for agricultural adjuvants, daily care products and industrial formulations.
As an efficient spray modifier and foliar absorption aid, polyether-modified heptamethyltrisiloxane is widely formulated into herbicides, insecticides, fungicides and foliar fertilizers. It improves adhesion and spreading of liquid chemicals on crop leaves and insect cuticles, reduces liquid runoff and waste, boosts pesticide and fertilizer efficiency, cuts pesticide dosage, and delivers favorable environmental compatibility. In daily chemicals, it functions as an emulsifier, wetting agent and skin feel modifier in skin lotions, shampoos, hair conditioners and other products, endowing skin with silky smoothness and optimizing spreadability and formulation stability. For industrial use, it acts as a leveling agent and pigment dispersant for coatings and a defoamer for waterborne systems to improve coating gloss uniformity and system stability. It is also applied in textile softeners, leather finishing agents and electronic chemical additives.
High-purity polyether-modified heptamethyltrisiloxane is synthesized via addition reaction between heptamethyltrisiloxane and allyl-terminated polyether catalyzed by platinum catalysts (e.g., Karstedt catalyst). Final products are obtained after low-molecular-weight removal, filtration and purification.
The process features a concise route, high reaction selectivity, easily accessible raw materials and low three-waste emissions, making it suitable for large-scale production. The product purity can exceed 95%, meeting the grade standards for agricultural and daily chemical applications.
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Heptamethyltrisiloxane is emerging as a transformative functional material in the pharmaceutical industry. This volatile silicone derivative combines low viscosity with high permeability, offering unique solutions for advanced drug delivery systems and medical device technologies. Certified USP Class VI and compliant with ISO 10993-5 standards, heptamet.
Heptamethyltrisiloxane is transforming the personal care industry through its unique volatile characteristics and exceptional spreading properties. This lightweight silicone fluid delivers instant sensory enhancement while providing functional benefits across various product categories. Heptamethyltrisiloxane meets rigorous safety standards including RE.
Heptamethyltrisiloxane is emerging as a powerful adjuvant in modern agriculture, leveraging its unique properties to enhance crop protection product performance. This organosilicone compound acts as a super-spreader, dramatically improving the efficacy of pesticides, herbicides, and fungicides through superior surface coverage and penetration. The mater.
Heptamethyltrisiloxane is gaining recognition as a versatile performance additive in various industrial sectors due to its unique combination of low viscosity, high volatility, and exceptional surface activity. This organosilicone compound serves as an efficient process aid and functional modifier across multiple applications. Heptamethyltrisiloxane off.
