Page 224 - 《精细化工》2021年第4期

·858· 精细化工 FINE CHEMICALS 第 38 卷

2.8 力学性能分析 酯乳液压敏胶的性能指标为：乳液固含量 62%，黏
MMA 用量对高固含量丙烯酸酯乳液压敏胶的 度 155 mPa·s，环形初粘力(9.53±0.389) N/25 mm，
环形初粘力、180°剥离强度以及持粘力的影响见表 5。 180°剥离强度(10.08±0.056) N/25 mm，持粘力超过
72 h。
表 5 MMA 用量对乳液力学性能的影响
Table 5 Effect of MMA dosage on the mechanical properties 参考文献:
of emulsions
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S4 30 1.67±0.799 5.96±0.516 >72 Preparation and property study of high-solid-content and low-
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急剧下降至(0.23±0.071) N/25 mm；当 MMA 用量超
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对剥离强度的影响较大，T g 的增加降低了压敏胶的
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乳液压敏胶，工艺流程简单，具有非常好的应用前
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0.283) N/25 mm 先增大到(10.08±0.056) N/25 mm， Synthesis of heat-resistant poymethyl methacrylate resin by
再减小到(0.29±0.099) N/25 mm，乳液的持粘力均超 high-temperature radical polymerization [J]. Polymer Materials
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过 72 h。当 MMA 用量为 10%时，高固含量丙烯酸 40-43.