A large percentage of pharmaceutical products are formulated as solids due to their ease of manufacture and packaging, and for the convenience of the

Microcalorimetry has been successfully applied to the study of electrochemical components and structural materials during the design and development o

Although it is often assumed that the pH of a buffer solution remains constant during a differential scanning calorimetry (DSC) experiment, the pK of

It is well known that there is an equivalence of the effects of time and temperature on the rheological properties of viscoelastic materials1. At low

Traditionally, pure gum rubber rheological properties are tested and certified using the well-known Mooney viscometer according to ISO 289. This test

Starches are natural products used most extensively as thickening agents in the food industry, but are also widely employed in the adhesives, paper co

Injection molding big parts and complex shapes with rigid PVC is probably the most demanding PVC process in terms of melt viscosities. PVC is a materi

DSC是在定义的气氛下测量样品发生转变时的温度与热流随温度或时间变化的函数关系；MDSC是在传统DSC上的提高，它将总的热流分解成可逆热流(热容)和不可逆(动力学)组分。可逆的信号包括热容，例如玻璃化转变和熔化；不可逆热流信号包括动力学成分，如结晶、结晶的完整性和重结晶、以及固化和分解等。

Although membrane proteins are very difficult to work with, ultra-sensitive calorimetry can overcome the limitations of many other physical characteri

The elaboration of complex fluids whith special properties and functionality is based on formulation engineering, a multi-level science, encompassing

在轻微的压力下，压敏胶就能较好地与表面粘合在一起。商用的压敏胶通常是聚合物、增粘剂、稳定剂和其它填料的混合体。通常，压敏胶表现出强烈的粘弹性，其力学性能与应变速率有明显的关系。压敏胶的粘弹性是其性能的决定性因素。图1所示为一种典型橡胶类压敏胶的特性。可以看到其力学响应随频率的变化而显著变化。家用压敏

示差量热扫描仪DSC测量随温度或控制气氛改变，材料内部转变引起的热流的变化。该项技术可以提供材料有关内部物理和化学变化的定形和定量信息，主要是宏观的吸热、放热或热容的变化。

摘要乳糖的是碳水化合物，平衡水分含量为5.0%一水合物水发生在大约145°C附近，脱水的能量为150J/g，该脱水能量可通过差示扫描量热仪测得并且可通过该仪器测量a-和b-乳糖混合物中a-单体的含量。

前言因为药物晶体具有很好的储存稳定性，药物公司在新药物配方中倾向采用结晶化合物。然而经常碰到的问题是药物存在多种结晶形式，即通常所说得多晶型。由于多晶型的每种晶型的物理性质、比如分散速率和生物活性有很大的不同，因此控制结晶的形势和含量显得十分重要。

DSC是在定义的气氛下测量样品发生转变时的温度与热流随温度或时间变化的函数关系；MDSC是在传统DSC上的提高，它将总的热流分解成可逆热流(热容)和不可逆(动力学)组分。

问题一个医药公司想比较两种洗液的扩散速度，以确定不同配方的作用效果。可是两种洗液的量非常少，难以用合适的方法进行表征。

为得到精确的测试结果，需定期对DSC进行校准。另外，当如下条件改变时，也需重新校准仪器：吹扫气体，冷却附件，或更换了新炉子。根据仪器型号和所选热流，校准主要有以下几个方面：