As an important intermediate in the organosilicon industry, low-hydrogen silicone oil exhibits high reactivity due to the unique Si–H bonds (silicon–hydrogen bonds) present in its molecular chain. It is not only a fundamental raw material for preparing various functional silicone oils but also a key additive in processes such as silicone rubber crosslinking and polyurethane foaming.
Today, we will explore the product characteristics of Jiujiang Deep-Sea Technology's low-hydrogen silicone oil and its core applications in industrial synthesis.
I. Product Overview: Side-Chain Structure and Active Functional Groups
From a molecular structure perspective, the main chain of side-chain low-hydrogen silicone oil consists of alternating Si–O bonds, while the side chains contain active Si–H bonds. This structural design allows the product to retain the fundamental properties of organosilicon materials, including excellent high- and low-temperature resistance and weather resistance, while also providing outstanding chemical modification capabilities.
Under the action of transition metal catalysts (such as platinum catalysts), side-chain low-hydrogen silicone oil can rapidly undergo hydrosilylation reactions with compounds containing unsaturated bonds. This unique characteristic makes it a "bridge" between organosilicon materials and organic compounds, serving as a key raw material for achieving functional modification.
II. Three Core Product Advantages
In practical industrial applications, the stability of raw materials directly determines the consistency and reliability of downstream product quality. The side-chain low-hydrogen silicone oil series offers the following three major technical advantages:
1. Excellent Reactivity
The side-chain low-hydrogen silicone oil series undergoes strict process control to ensure high Si–H bond activity. This enables high conversion efficiency during the synthesis of polyether-modified silicone oils and alkyl-modified silicone oils, effectively shortening production cycles and improving manufacturing efficiency.
2. Stable Hydrogen Content
Hydrogen content is one of the key indicators for evaluating the quality of low-hydrogen silicone oil. The side-chain low-hydrogen silicone oil series provides various hydrogen content specifications ranging from 0.18% to 0.75%, with excellent batch-to-batch consistency. This minimizes formulation adjustments caused by raw material fluctuations and ensures uniform performance in final products.
3. Low Volatility
To meet the purity requirements of high-end applications, the side-chain low-hydrogen silicone oil series strictly controls volatile matter content (≤2%). Low volatility reduces the generation of low-molecular-weight byproducts during high-temperature processing or chemical reactions, minimizing negative effects on the appearance and mechanical properties of final products.
III. Analysis of Four Major Application Areas
Based on its excellent reactivity and stable performance, side-chain low-hydrogen silicone oil has been widely applied in the following synthesis fields:
1. Basic Raw Material for Modified Silicone Oil Synthesis
This is one of the most important application areas for side-chain low-hydrogen silicone oil. Through hydrosilylation reactions between Si–H bonds and unsaturated monomers, various high-performance modified silicone oils can be synthesized.
Textile Auxiliary Raw Materials:
Used for synthesizing hydrophilic polyether-modified silicone oils for textile finishing, providing fabrics with a soft, smooth, and hydrophilic hand feel.
Agricultural Auxiliary Raw Materials:
Used as a raw material for synthesizing agricultural silicone spreading agents, significantly reducing surface tension and improving the spreading performance and adhesion of pesticide solutions on plant leaf surfaces.
Emulsifier Synthesis:
Used for preparing high-efficiency silicone oil emulsifiers, enhancing the stability and performance of emulsion systems.
2. Polyurethane (PU) Foaming Agents and Stabilizers
In polyurethane foaming processes, side-chain low-hydrogen silicone oils are essential raw materials for synthesizing silicone-based foam stabilizers. They help regulate foam structure, promote uniform and fine cell formation, prevent foam collapse and cracking, and improve the mechanical properties and durability of polyurethane foam products.
3. Silicone Rubber Crosslinking Agents
In addition-cured silicone rubber systems, such as HTV (high-temperature vulcanized) silicone adhesives and RTV (room-temperature vulcanized) liquid silicone adhesives, side-chain low-hydrogen silicone oils participate in curing reactions as crosslinking agents.
They react with vinyl-containing base polymers to form three-dimensional network structures. Compared with traditional condensation-curing systems, addition-cure systems using this product offer advantages such as low-temperature curing, no byproduct generation, high transparency, and excellent aging resistance.
4. Raw Materials for Alkyl-Modified Silicone Oils
Through hydrosilylation reactions with long-chain olefins, side-chain low-hydrogen silicone oils can be used to synthesize alkyl-modified silicone oils. These modified silicone oils are widely used in lubrication, defoaming, and personal care applications.
IV. Packaging and Storage Recommendations
Packaging Specifications:
190 kg/drum; 950 kg/ton drum, suitable for large-scale industrial production requirements.
Storage Conditions:
Store in the original unopened packaging at a temperature of 5–30°C. Keep in a cool, dry, and well-ventilated area, and avoid direct sunlight and exposure to rain.
Shelf Life:
The shelf life is 12 months from the production date. Products exceeding the recommended storage period must be inspected and confirmed qualified before use.
Jiujiang Deep-Sea Technology is committed to providing customers with high-quality silicone raw materials and professional technical support. With stable quality, excellent reactivity, and reliable performance, our low-hydrogen silicone oil has become a trusted choice for many manufacturers of synthetic materials.
