Question

What industries and processes is the emulsifier SG-100 mainly used in?

Answer

2026-05-27 官方文档乳化剂SG-100

Emulsifier SG-100 is widely used in the four major industries of cosmetics, textiles, plastics, and pesticides, primarily as an O/W emulsifier, softener, antistatic agent, and internal lubricant.

Detailed Description

Emulsifier SG-100 (PEG-100 Stearate, Polyoxyethylene (100) Stearate) is a non-ionic surfactant, appearing as a white to off-white waxy solid. With its excellent emulsifying and wetting abilities as well as resistance to acid, alkali, and hard water, this product has wide cross-industry applicability and holds an important position in the field of fine chemicals.

In terms of formulation system, due to its high EO addition number (100), SG-100 imparts excellent hydrophilicity and emulsifying stability to the product, making it particularly suitable as an emulsifier and solubilizer for oil-in-water (O/W) emulsion systems. At the same time, its safety performance is outstanding — non-irritating to skin, non-sensitizing, non-genotoxic, and readily biodegradable, making it highly favored in high-safety requirement fields such as personal care products.

Detailed Industry and Process Application

Application Industry	Role	Specific Process and Function
Cosmetics and Personal Care Products	O/W Emulsifier, Solubilizer	Used in the emulsification system of creams, lotions, sunscreens and other products, helping to form a stable and fine texture, enhancing the dispersion of active ingredients and skin feel. When used as a solubilizer, it can uniformly disperse insoluble components such as fragrances and oils in water-based formulations.
Textile Industry	Softener, Antistatic Agent	Used in fabric finishing processes to impart a soft and smooth feel to the fabric and effectively reduce static accumulation. It can also be used in synthetic fiber oil formulations to improve the smoothness and cohesion during fiber processing, enhancing processing and wearing comfort.
Plastics Industry	Internal Lubricant, Antistatic Agent	Added during plastic processing (e.g., injection molding, extrusion), it can improve melt flow, reduce friction coefficient, and decrease processing energy consumption. At the same time, it prevents dust adsorption on the surface of plastic products, improving the appearance quality and performance of the products.
Pesticide Formulations	Emulsifier	Used in pesticide formulations such as emulsifiable concentrates (EC) and oil-in-water emulsions (EW) to highly disperse oily active ingredients in water-based systems and form stable emulsions, ensuring uniform coverage and control effects during spray application, and improving pesticide utilization.

Application Recommendations

In practical applications, it is recommended to adjust the dosage of SG-100 according to specific process requirements:

Cosmetics Creams/Lotions: The typical addition amount is 1%-5% of the total formulation weight. It can be used in combination with other emulsifiers (e.g., low HLB emulsifiers) to obtain a wider emulsification range and better stability.
Textile Softening Finishing: In the pad-dry process, the working solution concentration is typically 5-30 g/L (data source: Guoli Chemical application experience), and can be adjusted according to fabric type and hand feel requirements.
Plastics Processing: The recommended addition amount is 0.1%-1.0% of the resin weight. It can be uniformly mixed with resin pellets during the compounding stage before entering the processing procedure.
Pesticide Formulations: Depending on the characteristics of the active ingredient and the formulation requirements, the emulsifier dosage is generally 3%-8% of the total formulation weight. It is recommended to conduct formulation screening based on the HLB value matching principle.

Precautions

The product is a waxy solid. Before use, it can be appropriately heated (recommended 40°C-60°C) to melt it for easier measurement and feeding.
Storage temperature is recommended to be controlled between 5°C and 40°C, avoiding direct sunlight and high temperature environments.
Store separately from incompatible materials such as strong oxidizers, strong acids, and strong alkalis.
Although it is a non-hazardous chemical with high safety, it is still recommended to wear basic protective equipment (gloves, safety goggles) during operation and maintain good ventilation in the working area.

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