Preparation and properties of self-crosslinking hydrophobic acrylic resin emulsion
A type of self-crosslinking hydrophobic acrylic resin emulsion was prepared by emulsion polymerization method with octadecyl acrylate(SA),self-made sealing monomer,isoborneate methacrylate(IBOMA)as the main raw materials,and octadecyl trimethyl ammonium chloride(1831)and fatty alcohol polyoxyethylene ether(AEO-9)as emulsifiers.The self-made sealing monomer and acrylic resin emulsion were characterized by FT-IR,particle size analyzer,DSC and thermo-gravimetric analysis.The surface morphology of the fabric after resin treatment was characterized by scanning electron microscopy.The unsealing temperature of the sealing monomer was analyzed,while the contact angle and rolling contact angle of the fabric surface was measured.The effects of the dosage of sealing monomer and temperature on the hydrophobic properties of acrylic resin on the surface of fabric were studied.The results showed that the unsealing temperature of the sealing monomer was 87 ℃.The acrylic resin emulsion,prepared with 6%mass fraction of sealing monomer,was stable,and the contact angle of the fabric surface was up to 132.4°,confirming that the waterproof performance of fabric surface was excellent.