High-strength hard flame-retardant epoxy foam material and preparation method thereof

• Main Authors: WU JIADONG, NAN BOHUA, LI ZHAOQIAN, ZHANG CHONGYIN
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention relates to a high-strength hard flame-retardant epoxy foam material and a preparation method thereof. The epoxy foam material is prepared from the following ingredients in parts by weight: 100 parts of epoxy resin, 10 to 50 parts of curing agent, 0 to 40 parts of inorganic hollow filler, 1 to 5 parts of dispersing agent, 1 to 5 parts of surface active agent, 1 to 5 parts of coupling agent, 5 to 15 parts of diluent, 1 to 5 parts of antiager and 5 to 10 parts of flame retardant. In preparation, the curing agent is molten in 120 to 140 DEG C at first, the epoxy resin is added to be evenly mixed with the curing agent in a low speed, and temperature is adjusted to 30 to 50 DEG C; the dispersing agent, the surface active agent, the inorganic hollow filler, the flame retardant and the antiager are sequentially added to be stirred evenly; the diluents is quickly added into mixed materials to be stirred for 20 to 25s, and then the materials are instantly poured into a mould which is preheated to 30 to 40