Differences between block silicone oil and amino silicone oil

1. What is block silicone oil?

Block silicone oil is a synthetic silicone polymer composed of three main parts: siloxane segments, hydrophobic segments and hydrophilic segments, forming a specific block structure. The hydrophobic segment is usually composed of hydrocarbon chains or siloxane chains, while the hydrophilic segment is composed of silanol groups or polyethylene glycol groups. This structure gives block silicone oil excellent physical and chemical properties, making it widely used in many industrial fields such as cosmetics, medicine, lubricants, and coatings.

2. Principle of block silicone oil action

The molecules of block silicone oil are composed of a soft siloxane main chain and blocks with different polarities, which include hydrophobic hydrocarbon chains or siloxane chains and hydrophilic silanol groups or polyethylene glycol chains. During the high-temperature baking process, the reactive groups (such as amino groups) between the molecular chains of block silicone oil can cross-link with other substances to form a stable network structure, which enhances its adhesion to the fiber. The cationic amino groups in the block silicone oil interact with the polar groups (such as hydroxyl and carboxyl) on the fiber surface, which promotes the directional arrangement of the siloxane main chain on the fiber surface, thereby improving its anchoring effect on the fiber. The formed film reduces the friction coefficient between the fibers, giving the fabric excellent properties such as hydrophilicity, softness and smoothness. Due to cross-linking and directional adsorption, the block silicone oil adheres more firmly to the fabric, improving its washability. Block silicone oil is a non-toxic, pollution-free green chemical product that has been widely used in the textile industry.

3. Advantages and characteristics of block silicone oil

Instant hydrophilicity: Block silicone oil can quickly interact with water to improve the hydrophilicity of the fabric. Softness and fluffiness: The treated fabric feels softer while maintaining a fluffy and full texture. Environmental characteristics: It does not contain irritating volatile solvents and is environmentally friendly. Color fastness: It will not cause yellowing of the fabric after use and maintains the original color of the fabric. Defect-free appearance: No oil spots, silicon spots, and non-stick rollers are produced, ensuring that the fabric surface is clean and flawless. Chemical and temperature resistance: It has good acid and alkali resistance and high temperature resistance, and is suitable for various industrial processing conditions. High shear resistance: It remains stable during mechanical processing and is not easily damaged by shearing. No harmful chemicals: It does not contain chemicals that are harmful to human health or the environment. Safety and stability: It is safe and stable during use, and no oil spots are produced. Improved feel: It gives the fabric a soft and smooth feel, which is not greasy and close to the touch of natural materials. Process and equipment adaptability: It is suitable for various processes and equipment with high flexibility. Fiber and fabric versatility: It is suitable for different types of fibers and fabrics, and has a wide range of applications.

4. The difference between amino silicone oil and block silicone oil

Block amino silicone oil vs side chain amino silicone oil Structural differences Side chain amino silicone oil: The amino functional group is located on the side chain of the polymer. Block amino silicone oil: The amino functional group is distributed in the block structure of the polymer to form alternating hydrophobic and hydrophilic segments. Performance Differences Hydrophilicity: Side chain amino silicone oils have higher hydrophilicity due to the presence of amino functional groups, while block amino silicone oils provide a balance between hydrophilicity and hydrophobicity due to the block structure. Application Differences: Side chain amino silicone oils are often used in applications that require enhanced hydrophilicity, such as cosmetics and personal care products. Block amino silicone oils are widely used in emulsifiers, defoamers and stabilizers due to their amphiphilic properties.

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