Paint chemicals

Acryl Polyoxyethylene Ether (APEG), also known as Allyl Polyethylene Glycol, is a versatile nonionic compound composed of allyl alcohol and ethylene oxide polymer. It is widely used in various industrial applications due to its unique chemical properties and performance.

Chemical Properties

APEG has the chemical structure CH₂=CHCH₂O(CH₂CH₂O)ₙH, where the value of n can range from 10 to 100. This compound is characterized by its reactivity with active hydrogen or double bonds, making it suitable for grafting reactions and as a dispersant for high molecular weight materials. It is also highly soluble in water and various organic solvents.

Technical Specifications

APEG is available in different molecular weights, each with specific properties. Here are some common specifications:

ALYL POLYETHYLENE GLYCOL (APEG) SERIES: TECHNICAL SPECIFICATIONS

Grade	Appearance (25°C)	Hydroxyl Value (mg KOH/g)	pH (1% Aqueous Solution)	Unsaturated Degree (mmol/g)
APEG-700	Yellowish paste	74–88	5.0–7.0	≥1.25
APEG-800	White to yellowish solid	66–77	5.0–7.0	≥1.00
APEG-1000	White to yellowish solid	50–55	5.0–7.0	≥0.80
APEG-2000	White to yellowish solid	27–30	5.0–7.0	≥0.45
APEG-2400	White to yellowish flake	21–24	5.0–7.0	≥0.30

Basic Specifications

Property	Typical Value
Chemical Structure	CH₂=CHCOO(CH₂CH₂O)ₙH
Molecular Weight	300-3000 g/mol (variable)
Appearance	Colorless to pale yellow liquid
Solubility	Water and organic solvents
Reactivity	Free radical polymerizable

Performance Advantages

Advantage	Technical Benefit
Dual functionality	Combines hydrophilicity with reactivity
Tunable HLB value	Adjustable EO chain length
Low VOC	Environmentally preferable
Good compatibility	Blends with various resins

Industrial Applications

Primary Application Areas

Industry	Application	Function
Construction	Cement additives	Improves workability
Coatings	Waterborne systems	Enhances film formation
Textiles	Fabric modifiers	Imparts softness
Personal Care	Cosmetic ingredients	Provides moisturization
Adhesives	Pressure-sensitive formulations	Modifies tack

Applications

APEG is primarily used as a key raw material for the synthesis of high-performance polycarboxylate superplasticizers. These superplasticizers are widely used in high-performance and high-strength concrete (C60 and above) due to their excellent dispersion and water-reducing capabilities. The resulting products have the following advantages:

– High water reduction rate

– Low dosage

– Enhanced strength and durability

– No corrosion of steel reinforcement

– Environmentally friendly

In addition to its use in concrete, APEG is also employed in the modification of silicon oil, where it acts as a grafting agent to improve the hydrophilicity and dispersion of polymers in water. It is also used in the synthesis of waterborne polyurethane and as a dispersant for high molecular weight materials.

Packaging and Storage

APEG is typically packaged in solid form in 200 kg or 50 kg plastic drums, or in flake form in 20 kg woven bags. It is non-toxic and non-flammable, and should be stored in a dry and ventilated place with a shelf life of one year.

Conclusion

Acryl Polyoxyethylene Ether (APEG) is a valuable nonionic compound with a wide range of industrial applications. Its unique chemical properties, such as reactivity and solubility, make it an essential raw material for the production of high-performance polycarboxylate superplasticizers and other specialty chemicals. Proper storage and handling ensure its stability and effectiveness in various applications.

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