Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics
NORMA vydána dne 15.3.2022
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Designation standards: ASTM D1430-22
Publication date standards: 15.3.2022
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This classification system covers polychlorotrifluoroethylene (PCTFE) plastics that consist of at least 90% chlorotrifluoroethylene and are suitable for extrusion and for compression and injection molding. The remaining 10% may include chemical modifications, such as co-monomers, but not colorants, fillers, plasticizers, or mechanical blends with other resins. PCTFE materials in powders and pellets are classified into one group. The group is subdivided into classes based on chemical composition: Class 1; Class 2; and Class 3. These classes are subdivided into grades: Grades 1, 2, 3, and 0; Grades 1, 2, and 0; and Grades 1, 2, and 0; respectively. The molding or extrusion material shall be of uniform composition and so compounded as to conform to the requirements of this classification system. The properties shall be determined in accordance with the following test methods: conditioning; zero strength time; test conditions; deformation under load; melting point; dissipation factor and dielectric constant; and specific gravity.
Keywords:
fluoropolymers, PCTFE, polychlorotrifluoroethylene, zero strength time,, ICS Number Code 83.080.20 (Thermoplastic materials)