Siwin-932 is highly miscible with standard organic solvents,such as alcohols, hydrocarbons and acetone.
Siwin-932 is practically insoluble in neutral water and reacts only slowly to form silanols and higher condensation products.
Addition of a hydrolytic catalyst (inorganic/organic acids, ammonia or amines) accelerates the hydrolysis of Siwin-932 substantially.
Siwin-932 may be used as water repellent to improve fillers dispersibility and reduces their
sedimentation tendency.
Siwin-932 may be used as an important component for sol-gel coating, silicone resins and silicone rubber.
Siwin-932
Siwin
Siwin-932
2031-67-6
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Siwin-932
Methyltriethoxysilane
Typical properties
Product No. | Siwin-932 |
Chemical Name | Methyltriethoxysilane |
CAS NO. | 2031-67-6 |
EINECS NO. | 217-983-9 |
Formula | C7H18O3Si |
Appearance | Colorless Transparent Liquid |
Density (ρ20℃，g/m³) | 0.8850±0.0050 |
Refractive Index ( ) | 1.3750±0.0050 |
Purity (by GC, %) | 99% |
Molecular Structure |
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Application
Rubber and Polymer Materials
Crosslinking Agent
Serves as a crosslinking agent for RTV single-component silicone rubber, participating in curing reactions to enhance mechanical properties (e.g., compressive strength, flexural strength) and weather resistance.
Improves the flowability of rubber mixtures in tires, footwear, and industrial rubber applications by optimizing the dispersion of silica fillers.
Polymer Modification
Used to prepare high-performance polymers such as silicone resins and benzyl silicone oils, enhancing their high-temperature resistance and aging stability.
Co-hydrolyzes with ethyl orthosilicate to form modified sols for wood ceramicization, reducing water absorption and improving mechanical properties.
Materials Science and Industrial Processing
Surface Treatment of Inorganic Fillers
Acts as a surface treatment agent for glass fibers and inorganic fillers, improving their dispersion and interfacial compatibility in plastics and rubber.
Enhances the uniformity and stability of pigments in coatings.
Fireproof and High-Temperature Materials
Used to prepare fire-resistant inner layers for high-temperature-resistant cables, synergizing with expandable graphite to form heat-insulating structures that enhance flame retardancy and durability.
Chemical Synthesis and Industrial Catalysis
Organosilicon Compound Synthesis
A key raw material for synthesizing silane coupling agents and silicone glass resins, widely used in chemical and pharmaceutical intermediates.
Generates alkali metal silanolates via hydrolysis, enabling curing in room-temperature vulcanized (RTV) silicone rubber.
Hydrophobic Modification and Functional Group Protection
Functions as a hydrophobic modifier by coupling with hydroxyl groups on substrate surfaces, imparting waterproofing and acid/alkali resistance (e.g., in construction waterproofing agents)
Package & Storage
210L Iron Drum: 180kg/drum.
1000L IBC Container: 850kg/container.
Store tightly at room temperature in dry shadow place, avoid contact with alkali and acid , away from fire source.
