Heptamethyltrisiloxane FOR DAILY CHEMICALS - heptamethyltrisiloxane factory&supplier

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 REACH and cosmetic regulations, making it suitable for sensitive skin applications. Its multifunctional performance and volatile nature make it an indispensable ingredient for developing next-generation personal care products that combine luxurious sensory experiences with advanced functionality.

Basic Product Information

• Product Name: Heptamethyltrisiloxane
• Appearance: Colorless Transparent Liquid

TYPICAL PROPERTIES

Physical Properties

• Colorless, odorless transparent liquid with adjustable volatility (completely volatilizes within 3-8 minutes).

Chemical Properties

• Active Si-O-Si structure, ultra-low surface tension (18-20 mN/m), rapidly spreads to form film.
• Certified by COSMOS and ECOCERT organic standards, complies with FDA 21CFR §172.210 regulations.

Product Functions

• Skin Sensation Optimization:

Instantaneous volatilization without residue, delivering a “zero burden” refreshing experience

Enhances formula spreadability and reduces white streaks during application

• Efficacy Enhancement:

Promotes transdermal absorption of active ingredients (e.g., Vitamin C/Retinol)

Improves even dispersion of sunscreen agents and boosts SPF value

• Formula Stability:

Prevents emulsion separation and extends shelf life

Compatible with various emulsification systems (O/W, W/O, silicone-in-water)

Applications

• Skincare: Sunscreen, Serum, Primer
• Color Cosmetics: Foundation, Lipstick, Mascara
• Hair Care: Shampoo, Conditioner, Hair Oil
• Specialized Applications: Deodorant, Hair Removal Cream, Baby Care Products

Core Advantages

Market Value

Market Size & Growth Trends

• Global Market Overview

2023 Market Size: $150-180 million (8-10% of the silicone-based cosmetic raw material market)

Growth Rate: 6.5-8.5% CAGR from 2023 to 2030, projected to reach $250-300 million by 2030

• Key Drivers:

Surging demand for lightweight silicones in premium skincare

Rising popularity of anhydrous cosmetics

Shift toward fast-drying, high-efficiency home cleaning products

Technology Innovation Directions

• Green Transformation

Development of bio-based HMTS (40% reduction in carbon footprint)

Replacement of controversial ingredients:

Cyclic siloxanes (D4/D5)

Volatile Organic Compounds (VOCs)

• Functional Hybridization

Ceramide complexes (barrier repair enhancement)

Sustained-release fragrance encapsulation (3x longer fragrance retention)

• Process Innovation

Microemulsion technology (particle size <100nm)

Supercritical fluid processing (purity >99.9%)

Experimental Data & Case Studies

Application in Sunscreen Products

• Data:

SPF50+ formula with 3% additive: 22% SPF boost (COLIPA standard)

Water resistance: 91% SPF retention after 80-minute immersion (FDA 2011)

• Case Study:

A global sunscreen brand: Consumer satisfaction rate for “non-greasy feel” increased from 68% to 92%.

Anti-Aging Serum Formulation

• Data:

1% Retinol + 2% additive: 1.8x increase in transdermal delivery (HPLC analysis)

Irritation reduced by 37% (3D skin model test)

• Case Study:

A domestic skincare brand: Product repurchase rate rose by 55%, securing a TOP 3 category ranking.

Long-Wear Foundation

• Data:

2% additive: 40% improvement in 8-hour wearability (VISIA-CR analysis)

33% enhanced spreadability (texture analyzer)

• Case Study:

A luxury cosmetics line: Successfully replaced cyclopentasiloxane (D5) and obtained EU eco-certification.

Preparation Process, Core Technologies, and Precautions

Preparation Processes

• Raw Material Selection & Pretreatment

Primary Materials: Dimethyl dichlorosilane (Me₂SiCl₂), Hexamethyldisiloxane (MM)

Purification:

Molecular sieve dehydration (moisture ≤10ppm)

Distillation (purity ≥99.5%)

Catalyst Activation:

Acidic clay catalyst (specific surface area ≥200m²/g), activated at 350°C for 4 hours

• Hydrolysis & Condensation Reaction

Conditions:

Temperature: 25-30°C (±1°C control)

pH: 4.5-5.5 (acetic acid buffer system)

Molar ratio: Me₂SiCl₂ : MM : H₂O = 1 : 0.8 : 1.2

Process Features:

Staged feeding: MM added first, followed by slow Me₂SiCl₂ drip

Nitrogen protection (O₂ ≤50ppm)

Reaction time: 4-6 hours

• Distillation & Purification

Multi-column Continuous Distillation:

Initial column: 80-100°C/50mmHg (remove low-boiling impurities)

Main column: 120-125°C/10mmHg (collect HMTS fraction)

Final column: 130-135°C/5mmHg (purity ≥99.9%)

Key Controls:

≥50 theoretical plates

Reflux ratio 8:1

Yield ≥85%

Core Technologies

• Precision Molecular Structure Control

End-capping: Adjust molecular weight distribution via MM dosage (Mw/Mn ≤1.05)

Branching Suppression: Microreactor technology (residence time ≤30s)

Stereoselectivity: Chiral catalysts for isomer enrichment (ee ≥95%)

• Low-Impurity Production

Chloride Control:

Triple water washing (conductivity ≤5μS/cm)

Molecular sieve adsorption (Cl⁻ ≤1ppm)

Metal Ion Removal:

Chelating resin treatment (Fe³⁺ ≤0.1ppm

Nanofiltration (pore size ≤1nm)

• Functional Modification

Surface Energy Tuning:

Fluorination (contact angle ≥110°)

Hydroxylation (surface energy ≤20mN/m)

Compatibility Enhancement:

Polyether grafting (EO/PO=3:1)

Amino modification (primary amine ≥1.2mmol/g)

• Microemulsion Technology

Emulsion System:

Nonionic emulsifier (HLB 12-14)

Co-surfactant (C8-C10 alcohols)

Parameters:

High-pressure homogenization (≥1000bar)

Particle size control (D50 ≤50nm)

Stability (no phase separation after 3000rpm × 30min centrifugation)

Precautions

• Safe for pregnant women but recommended dosage ≤3%
• Storage: Light-sensitive; 24-month shelf life
• TiO₂ compatibility: Pre-dispersion required

Packaging & Ordering

Packaging: 200kg/1000kg plastic drums (customizable).