Active magnesium flame retardant containing composite polymer coupling agent

• Main Authors: SUN QIANG, XIANG SUYUN, KAO JILIN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to a flame retardant, in particular to an active magnesium flame retardant containing a composite polymer coupling agent. The flame retardant is characterized by being prepared from, by weight, 100 parts of natural brucite powder, 10-15 parts of composite polymer coupling agent, 0.5-5 parts of small-molecule coupling agent and 0.5-5 parts of auxiliary. The magnesium flame retardant has excellent flame resistance, dispersibility and compatibility, the prepared flame retardant has the very high flame retardant efficiency, when 20% of flame retardant is added into polypropylene, the flame-retardant level is achieved, the oxygen index exceeds 33%, the vertical flame rating reaches the UL 94V-0 level, the tensile strength of samples is slightly reduced, and the impact strength is obviously improved. According to the flame retardant, the raw materials are easy to obtain, the technology is simple, the production efficiency is high, no discharge of three wastes exists, the economic benefit is si