乳化机剪切力强弱对乳化效果的影响
发布日期：2023-11-28
阅读量：1292
乳化机因为具有乳化效果，因此被称为乳化机；配置了真空功能，称之为真空乳化机；具有高速剪切的功能又被称为高剪切乳化机。乳化机具有乳化、分散、均质、剪切、研磨、加热等功能，也常常被称之为与这些功能相关的名称。乳化的实现与乳化效果的影响因素除了合适的乳化剂外，就是乳化机设备的剪切力的影响。下面跟着有20多年乳化机生产经验的金宗企业，一起来了解一下真空乳化机剪切力强弱对乳化效果的影响。
要实现乳化，需要两个因素。合适的乳化剂，可以作为互不相融的油相水相分子之前互相融合的媒介。作为水分子和油结构之间的桥梁或介质，将通过电荷和分子间力的作用，根据我们的预期时间稳定储存油和水的乳液。另外一个因素就是需要强大的机械剪切分散作用，将油、水相中的流体介质切割分散成细小颗粒，然后颗粒聚集结合在一起，同时相互混合，最后形成乳液。
真空乳化机的剪切力会影响最终的细度。经分析，主要与定转子刀刃的锋利程度、硬度、转子与定子的间隙、两刀刃的运动速度、定转子间隙允许通过的颗粒直径有关。一般来说，刀刃的锋利度、硬度、转子与定子的间隙和批准的颗粒直径是最终确定的，不再有变化，所以两个切割刀刃的运动速度是影响它的最重要因素。事实证明转子(定子固定)的圆周线速度越高，流体切割和冲击的密度越高。因此，成色更强。反之亦然。但是，这并不是代表线速度越大就越好。当线速度达到很高的值时，很容易形成阻力趋势，流量会变小。最后设备容易发热。如果机器没有配备冷却系统，一些原料会团聚在一起，反而对于乳化的分散均质效果有不好的影响，乳化效果达不到理想状态。
专栏：技术交流
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