树脂和树脂基复合材料的热变形温度（HDT）的测试
所有的树脂和树脂基复合材料的主要和重要的应用之一，是用于航海领域。这些特殊的材料被广泛用于船体和必须要永久与水接触的部件上，如竞赛船，冲浪板等。航海部门需要产品具有优秀的机械性能和热抗性，并且表面光洁度高，耐水性好，实现船体结构抵抗强大压力。
一个简单测试树脂或树脂基复合材料性能的方法，是进行热变形温度（HDT）的测试。这种分析是简单高效的，因为基材保持其机械特性的HDT值，呈现一个塑性行为。如果温度超过材料的HDT值，永久变形将在材料表面产生。另一方面，较高的HDT值将使该产品的应用领域更加广阔。
综上所述，了解和知道每个树脂和复合材料的HDT特点是极为重要的。
测试通常根据 ISO75 或 ASTM D648 标准进行。在许多情况下，根据不同的认证，生产商必须保证该树脂能够达到或高于60℃的HDT值，才能将其产品用于航海行业。
为了满足该应用要求，我们推荐 CEAST 热变形维卡系列，无论是在手动或半自动的型号，三位或六位机型，可满足所有的测试需要。
有关测试的设置，程序和结果的细节，请参阅下面链接的规范性文件。
CEAST HDT Vicat Series 3 and 6 Stations Testers
The effect of temperature on the mechanical properties of plastic materials has a fundamental role in the design of components, especially in the selection of materials. Unlike metals and ceramics, plastics are extremely sensitive to the slightest changes in temperature. The selection of plastics for applications under different temperatures is a complex task. The material must be able to support a stress under operating conditions without losing its strength and without critical distortion. The effect of temperature on geometrical stability and mechanical properties in general can be studied following different procedures and methods like at constant temperature or with a temperature ramp.
- 产品
- 6/19/2012
- 1.2 MB
Instron HV Series for HDT and Vicat Testing
The effect of temperature on the mechanical properties of plastic materials has a fundamental role in the design of components, especially in the selection of materials. Unlike metals and ceramics, plastics are extremely sensitive to the slightest changes in temperature. The selection of plastics for applications under different temperatures is a complex task. The material must be able to support a stress under operating conditions without losing its strength and without critical distortion. The effect of temperature on geometrical stability and mechanical properties in general can be studied following different procedures and methods like at constant temperature or with a temperature ramp.
- 产品
- 6/21/2018
- 1.2 MB