Flame-retardant thermoplastic sulfurized rubber preparation method

• Main Authors: ZHANG LIQUN, TIAN HONGCHI, ZHAO XINGMEI, WU SHEMAO
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2008
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention relates to a method for preparing flame-proof thermoplastic sulfide rubber, comprising adding flame-proof agent and synergistic agent on sulfide rubber fusion condition to make them be separated directly in the continuous phase, said flame-proof agent is bromide / antimony oxide and said synergistic agent is silicon rubber. The flame-proof thermoplastic sulfide rubber is characterized by high oxygen index, which reaches to 40, FH-1, V-0 grade of vertical burning performance, avoidance of reduction of sulfidization activity, retaining of high processing fluidity and low hardness. The process is convenient and easy, and thermoplastic sulfide rubber of different grade can be prepared according to requirement.