Modulus and adhesion of Sylgard 184, Solaris, and Ecoflex 00‐30 silicone elastomers with varied mixing ratios
Modulus and adhesion of Sylgard 184, Solaris, and Ecoflex 00‐30 silicone elastomers with varied mixing ratios
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DOI：
10.1002/app.52412
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发表时间：
2022-03
影响因子：
3
通讯作者：
Daniel R. Darby;Zhuoyun Cai;Christopher R. Mason;Jonathan T. Pham
中科院分区：
文献类型：
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作者：
Daniel R. Darby;Zhuoyun Cai;Christopher R. Mason;Jonathan T. Pham
由两部分组成的商用有机硅弹性体因其广泛的可获得性、易用性、低成本和机械可调整性而被用于各种基础软材料研究和工业应用。这项工作旨在为三种不同混合比例的常见弹性体体系创建模量库：Sylgard 184、Solaris和Ecoflex 00-30，并对它们的粘接性能进行比较。利用平行板振荡剪切流变学对剪切存储模数进行了量化。用球面探头粘着试验测量脱粘功，用测角仪测量静态接触角、前进接触角和后退接触角。Sylgard 184的剪切模数范围为~0.5kpa-620 kpa，Solaris的剪切模数范围为~0.6kpa-175 kpa，EF的范围为~1.3kpa-35 kpa，频率为0.01 rad/S。此外，较软的样品普遍具有更高的粘附性，与材料系统无关。当比较不同的材料系统时，Sylgard 184通常是粘性最强的，紧随其后的是Solaris，然后是Ecoflex 00-30。我们的研究提供了模量值和相对附着力的基准数据集，以帮助研究人员确定适合其应用的商用有机硅。
Two‐part, commercial silicone elastomers are used in a variety of fundamental soft materials research and industrial applications due to their wide availability, ease of use, low cost, and mechanical tunability. This work seeks to create a library of moduli for three common elastomer systems with varied mixing ratios: Sylgard 184, Solaris, and Ecoflex 00–30, as well as provide a comparison of their adhesive properties. Shear storage moduli are quantified using parallel plate oscillatory shear rheology. The work of debonding is measured with spherical probe adhesion testing, and the static, advancing, and receding contact angles are measured via goniometer. Sylgard 184 can have shear moduli ranging from ~0.5 kPa‐620 kPa, Solaris from ~0.6 kPa‐175 kPa, and EF from ~1.3 kPa‐35 kPa measured at a frequency of 0.01 rad/s. In general, increasing mixing ratios creates softer samples. Additionally, softer samples are universally more adhesive, regardless of the material system. When comparing the different material systems, Sylgard 184 is generally the most adhesive, followed closely by Solaris, and then by Ecoflex 00–30. Our study offers a baseline dataset of modulus values and comparative adhesion to help researchers determine an appropriate commercial silicone for their application.