A cationic fluorine-free waterproof agent was synthesized via miniemulsion polymerization using octadecyl methacrylate（SMA）， methacrylamide（MAA）， hydroxyethyl acrylate（HEA），and methacryloyloxyethyl trimethylammonium chloride（DMC）as monomers，cetyltrimethylammonium bromide（CTAB）and polyoxyethylene ether（AEO-20）as compound emulsifiers，azobisisobutylamidine hydrochloride（AIBA） as initiator. The influence of polymerization temperature，the amount of emulsifier and dosage of crosslinking agent on the latex properties were studied. The results showed that the acrylate latex showed excellent performances，when emulsifier was 7%，HEA was 2%，reaction temperature was 80 ℃，reaction time was 5 h. Moreover，when the dosage of waterproof agent was 100g/l，the treated cotton fabrics presented optimum hydrophobic properties，with contact angle of 139°. After 25 times of washing，the fabrics still presented a high contact angle，showing excellent washing resistance.
JI Wan-Li
,
WANG Hong-Ru
. Synthesis and Application of Cationic Fluorine-Free Acrylate Waterproof Agent[J]. Paint & Coatings Industry, 2020
, 50(1)
: 38
-41
.
DOI: 10.12020/j.issn.0253-4312.2020.1.38
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