首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 ASTM D3795-20
到馆提醒
收藏跟踪
购买正版
Standard Test Method for Thermal Flow, Cure, and Behavior Properties of Pourable Thermosetting Materials by Torque Rheometer 通过扭矩流变仪测量可浇注热固性材料的热流动 固化和行为性能的标准测试方法
发布日期: 2020-04-01
1.1 本试验方法涵盖仪器和特定试验方法,包括测定可浇注热固性材料的热流和固化特性所需的结果评估。 1.2 本试验方法可用于: 1.2.1 作为可浇注热固性材料开发和生产的控制,并测量不同的性能(例如,熔融行为、固化行为等),以及任何给定配方中各种添加剂和填料的影响,以及 1.2.2 验证同一配方不同生产批次的均匀性。 1.3 数值以国际单位制表示。 1.4 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。 具体预防措施见第节 7. . 注1: 本标准等同于非活动ISO 本标准和ISO 15252-2涉及相同的主题,但技术内容不同。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 在经历这些不同阶段时,扭矩和温度的连续记录可用于预测材料在加工过程中的行为。 5.2 转矩流变仪测试有两个重要功能。 首先,它是预测可浇注热固性化合物的流动/粘度和固化特性的一种方法。例如,该测试提供了有用的数据来预测材料在特定成型方法中的加工性能。该信息也有助于优化特定材料的工艺条件,例如填充模具的最小压力和固化零件的时间。测试的第二个能力是提供模塑化合物批次间均匀性的图形记录。
1.1 This test method covers the apparatus, and a specific test method, including the evaluation of results required for the determination of the thermal flow and cure behavior properties of pourable thermosetting materials. 1.2 This test method can be used: 1.2.1 As a control for the development and production of pourable thermosetting materials and to measure the different properties (for example, melting behavior, cure behavior, etc.) as well as the influence of various additives and fillers in any given formulations, and 1.2.2 Verify the uniformity of different production batches of the same formulation. 1.3 The values are stated in SI units. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 7 . Note 1: This standard is equivalent to the inactive ISO 15062. This standard and ISO 15252-2 address the same subject matter, but differ in technical content. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The continuous recording of torque and temperature while going through these various stages can be used to predict the behavior of the material during processing. 5.2 The torque rheometer test has two important functions. First, it is a means to predict flow/viscosity and cure characteristics of pourable thermosetting compounds. For example, the test provides useful data to predict the processibility of a material in a particular molding method. This information is also useful to optimize process conditions for a particular material such as the minimum pressure to fill a mold and the time to cure a part. A second capability of the test is to provide a graphic record of the batch-to-batch uniformity of the molding compound.
分类信息
关联关系
研制信息
归口单位: D20.30
相似标准/计划/法规