• 专利标题:   Preparing hydrophobic moisture barrier coating useful in obstructing and dehumidifying field, comprises e.g. reacting dopamine hydrochloride in methacrylic acid substance, performing free radical polymerization reaction and oxygen plasma surface hydroxylation and coating.
  • 专利号:   CN113736011-A, CN113736011-B
  • 发明人:   WANG X, YANG W, YU Q, YU B, XIANG Y, ZHOU F
  • 专利权人:   LANZHOU CHEM PHYSICS INST CHINESE ACAD
  • 国际专利分类:   C08F220/24, C08F220/56, C08F220/58, C08F230/08, C08J009/36, C08L075/04, C09D133/16, C09D133/24, C09D007/61
  • 专利详细信息:   CN113736011-A 03 Dec 2021 C08F-220/24 202255 Chinese
  • 申请详细信息:   CN113736011-A CN11140579 28 Sep 2021
  • 优先权号:   CN11140579

▎ 摘  要

NOVELTY - Preparing hydrophobic moisture barrier coating comprises reacting dopamine hydrochloride with methacrylic acid substance to obtain 3-methyl-dopamine, mixing 3-methyl-dopamine, polymerization monomer and azodiisobutyronitrile and subjecting for free radical polymerization reaction to obtain the dopamine copolymer, where the polymerization monomer is acrylic ester, acrylamide or organosilicone side chain group organic, mixing dopamine copolymer, organic solvent and filler to obtain coating, performing oxygen plasma surface hydroxylation on the base material, obtaining pre-processed base material, coating the coating on surface of pre-processing base material to obtain the hydrophobic and moisture barrier coating. USE - The hydrophobic moisture barrier coating is useful in obstructing and dehumidifying field (claimed), and useful in building external wall heat preservation, roof waterproof and heat preservation integration, building board, refrigerator car and refrigerator heat insulation and damp-proof material, precise instrument external protective layer and other surface interface field. ADVANTAGE - The hydrophobic moisture barrier coating: can avoid the material caused by moisture absorption caused by oxidation of the coated material and ensure swelling deformation affecting the precision component size precision. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for hydrophobic and wet-resistant coating, prepared by the above preparation method.