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硅油与有机硅乳液
有机硅的化学正式名称为聚二有机硅氧烷。它有一个由硅原子和氧原子交替组成的“无机”支架,硅原子剩余的两个价则与有机端基(多为甲基)相连,这使有机硅得以部分拥有有机物的特性。因为Si-O键的键能要远远高于CC键,这对有机硅能够抵抗不同因素的影响、保持稳定起到了非常重要的作用。
硅脂
硅脂的下述基本性能使其成为众多应用领域宝贵的功能性助剂:
硅脂能够在技术领域和可能与食品发生接触的应用领域充当减阻剂和组装助剂,也可用作可拆卸部件及衔接件的密封助剂和高温领域的脱模剂等。
WACKER® SILICON PASTE P is a translucent, vaseline-like, relatively stiff,waterrepellent paste. WACKER® SILICON PASTE P becomes softer when subjected to shear stress or other mechanical stress such as kneading, which in many instances makes processing easier. The pasty consistency is little affected by changes in temperature. Thecomponents of Paste P are on the positive lists of the following Regulations for food contact: Regulation (EU) No. 10/2011, Recommendation XV. Silicones of the BfR (Federal Institute for Risk Assessment) and the FDA Code of Federal Regulations Title 21 §175.3570 Lubricants with Incidental Food Contact.性质 | 测试方法 | 测试值 |
---|---|---|
以上数据仅供参考,不用作制备规范。 | ||
Density at 25 °C | ISO 1183-1 A | 1 g/cm³ |
Dielectric Constant (50 Hz) | IEC 60250 | 2.8 εr |
Dielectric strength | IEC 60243 | 20 kV/mm |
Loss of weight | FED-STD 791 M 321; 30h / 200 °C | 很(zui)高 2 % |
应用
润滑剂