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采用控制应力流变仪对胶黏剂性能进行定性和预测
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The mechanical and rheological properties of pressure sensitive adhesives (PSAs) will dictate the long-range performance of the adhesive. Tack and peel behavior and shear resistance have historically been measured to determine and/or predict the performance of PSAs, and to engineer their properties as well. Historical tests (180° peel, loop tack, etc.) have been very effective in measuring relative properties of various adhesives, but these tests often suffer from a lack of precision and reproducibility. In addition, the results can be significantly influenced by operator bias. In this article, controlled-stress rheology is presented as an effective tool in the evaluation and predication of PSA performance. Tack and peel qualities can be directly and quantitatively measured and compared. The use of time-temperature superposition can extend the measureable range of the instrument and assist in long-term product performance. |
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2016-06-29 14:44:25, 1.62 M
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