摘要
采用溶液聚合法,以软单体丙烯酸-2-乙基己酯、硬单体丙烯酸甲酯功能单体丙烯酸和溶剂乙酸乙酯为原料,经引发剂偶氮二异丁腈,交联剂乙酰丙酮铝作用,制备不同胶层厚度的溶剂型丙烯酸酯压敏胶,探究不同功能单体浓度对丙烯酸酯压敏胶性能的影响.研究结果表明:当胶层厚度为30 μm,丙烯酸浓度为10.96％,丙烯酸酯压敏胶的180°剥离强度最大值为2730.5 gf·(25 mm)-1;当胶层厚度为30 μm,丙烯酸浓度为5.80％,环形初粘力最大值为16.559 N·(25 mm)-1;当胶层厚度为20 μm,丙烯酸浓度为8.45％和10.96％时,位移量均为0.5 mm,持粘性好.因此,当胶层厚度为30 μm,浓度为8.45％时,丙烯酸酯压敏胶的综合性能较好.
Abstract
The solvent acrylate pressure sensitive adhesive with different thickness are prepared by solution polymerization using soft monomer 2-ethylhexyl acrylate,hard monomer functional mono-mer acrylic acid and solvent ethyl acetate as raw materials.The effects of different functional mon-omer concentrations on the performance of acrylate pressure-sensitive adhesive are investigated.The results show that when the thickness of the adhesive layer is 30 μm,and the concentration of acrylic acid is 10.96％,the maximum peel strength of the acrylate is 2 730.5 gf·(25 mm)-1at 180°.When the thickness of the adhesive layer is 30 μm,and the acrylic acid concentration is 5.80％,the maximum initial adhesive strength of the ring is 16.559 N·(25 mm)-1.When the thickness of the adhesive layer is 20 μm and the acrylic acid concentration is 8.45％and 10.96％,the displacement is 0.5 mm with good adhesion.Therefore,when the thickness of the adhesive layer is 30 μ m and the concentration is 8.45％,the comprehensive performance of the acrylate pressure sensitive adhesive is better.
基金项目
西安航空学院校级科研基金项目(2021KY0201)
维普
万方数据