In industrial settings, PEG 4000 (polyethylene glycol 4000) is primarily used as a lubricant, plasticizer, binder, and dispersant in various applications including rubber production, papermaking, resin manufacturing, and metal processing, due to its high solubility, non-toxicity, and ability to enhance the properties of different materials; it can also act as an anti-redeposition agent in detergents and a component in certain coatings and adhesives.Â
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Rubber industry:
Used as a processing aid to improve lubricity and plasticity during rubber compounding, enhancing the mold release properties and reducing friction during extrusion.Â
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Papermaking:
Acts as a finishing agent to increase paper smoothness and brightness, improving the paper’s quality.Â
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Resin production:
Incorporated into resin formulations to enhance flexibility and durability in coatings, adhesives, and plastics.Â
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Metal processing:
Functions as a lubricant and coolant during metalworking operations, reducing friction and heat generation.Â
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Detergent production:
Used as an anti-redeposition agent to prevent dirt particles from re-depositing on fabrics.Â
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Pigment dispersion:
Acts as a dispersant to evenly distribute pigments in paints and inks.Â
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Molecular weight:
The “4000” in PEG 4000 refers to its average molecular weight, which influences its physical properties and applications.Â
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Solubility:
PEG 4000 is highly soluble in water, making it suitable for aqueous systems.Â
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Safety profile:Generally considered non-toxic and safe for industrial use when handled appropriately.Â
