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Waterborne acrylic, also known as acrylic emulsion or aqueous acrylic dispersion, refers to a class of acrylic polymer emulsions dispersed in deionized water as the continuous phase.
It is produced via free-radical emulsion polymerization, using acrylic acid, methyl acrylate, butyl acrylate, 2-EHA, methacrylate and other vinyl monomers, matched with emulsifiers, initiators and functional monomers for copolymerization. No or minimal organic solvent is used, complying with low-VOC environmental standards.
Based on molecular structure, it is divided into pure acrylic emulsion, styrene-acrylic emulsion, silicone-acrylic emulsion, hydroxy acrylic emulsion and self-crosslinking acrylic emulsion.
Three active hydroxyl groups make it a classic trifunctional initiator for polyether polyols. It opens rings with propylene oxide and ethylene oxide to produce flexible foam polyethers.
Under esterification reaction with dicarboxylic acids such as adipic acid, it generates polyester resins and plasticizers.
Stable under normal temperature; no self-polymerization. It will decompose at temperatures above 290℃.
Excellent moisturizing and plasticizing performance, widely used as humectant in daily chemicals.
Non-toxic, mild to human skin at normal concentration.
Flexible foam polyether/Polyol 3000 MW
Flexible foam polyether polyol is a tri-functional hydroxyl-terminated polyether specially engineered for soft polyurethane foam production.
It is synthesized via ring-opening polymerization of propylene oxide (PO) and partial ethylene oxide (EO), initiated with glycerin (triol starter). The EO capping on molecular chain end enhances reactivity with isocyanates (TDI / MDI) and improves foam surface curing efficiency.
General molecular weight ranges from 3000 to 6000 g/mol, with typical hydroxyl value 28–56 mgKOH/g. The ether linkage structure endows finished foam excellent hydrolytic stability, low compression set and outstanding resilience compared with polyester foam systems.
HDI (Hexamethylene Diisocyanate) and IPDI (Isophorone Diisocyanate) are the two most mainstream aliphatic/cycloaliphatic diisocyanates. Unlike aromatic TDI/MDI, they contain no benzene rings, so PU products made from them feature outstanding UV resistance and anti-yellowing performance, widely used in high-end weather-resistant coatings, elastomers, adhesives and waterborne PU dispersions.
Flexible polyurethane foam (largest consumption)
Mattresses, sofa cushions, car seat foam, pillow filling, packaging shock-absorbing foam.
Polyurethane coatings & paints
High-gloss industrial finish, wood coatings, anti-corrosion topcoat, automotive surface paint.
PU adhesives & sealants
Shoe sole adhesive, composite fabric glue, construction joint sealant.
Microcellular elastomers & synthetic leather
Artificial leather for bags, shoes, furniture, soft micro-pore elastomer accessories.
Polyurethane waterproof materials
Single-component and two-component waterproof coatings for building roofs and basements.
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