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以可自由基聚合的松香衍生物——氢化丙烯酸松香(β-丙烯酰氧基乙基)酯(AHR-2-HEA)作为增黏树脂,采用预乳化半连续乳液聚合法制备了PSA(压敏胶)用基体树脂(松香衍生物-丙烯酸酯共聚乳液)。结果表明:AHR-2-HEA参与了体系的共聚反应,并且其与体系的相容性良好;当w(AHR-2-HEA)=8%时,PSA的综合性能最佳,此时初粘力为10#钢球、180°剥离强度为674 N/m且持粘力超过72 h。
The PSA (pressure-sensitive adhesive) was prepared by using pre-emulsified semi-continuous emulsion polymerization using free-radically polymerizable rosin derivative-β-acryloyloxyethyl methacrylate (AHR-2-HEA) Base resin (rosin derivative - acrylate copolymer emulsion). The results showed that: AHR-2-HEA was involved in the copolymerization reaction of the system and its compatibility with the system was good; when the AHR-2-HEA = 8%, the best comprehensive performance of PSA, The force is 10 # steel balls, peel strength at 180 ° is 674 N / m and holding capacity is over 72 h.