Flame-retardant epoxy/polyvinyl chloride composite foam material and preparation method and application thereof

• Main Authors: HU XIAOYUE, DAI HUMIN, ZHENG JIAPENG, YE KANGZHI, SHAN ZHI
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2018
• 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; WORKING-UP

The invention belongs to the fields of technical development and application of flame-retardant foam materials and discloses a flame-retardant epoxy/polyvinyl chloride composite foam material and a preparation method and application thereof. The composite foam material is prepared from the following ingredients in parts by weight: 100 parts of epoxy resin, 60-90 parts of curing agent, 3-10 parts of inorganic particles, 0.05-5 parts of chemical foaming agent and 10-30 parts of polyvinyl chloride. A forming process of the composite foam material comprises the steps of uniformly mixing the epoxyresin and the polyvinyl chloride at a high speed at high temperature, then, adding the curing agent and the inorganic particles, carrying out precuring for certain time at low temperature, finally, adding the foaming agent, and then, carrying out foaming forming. The flame-retardant epoxy/polyvinyl chloride composite foam material disclosed by the invention is a lightweight flame-retardant microporous foam material, the b