Heat-resistant in-mold foamed acrylate foam

• Main Authors: XU WENSHENG, DONG YANLI, LI FENG, MENG JIALI, LI KEDI, FAN XIAOQING, MAO MINLIANG, CHANG YI
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2019
• 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; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; 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 the field of new material preparation, and discloses heat-resistant in-mold foamed acrylate foam. According to the heat-resistant in-mold foamed acrylate foam, a body castingmethod is firstly used to obtain a pre-polymerized plate, and then the pre-polymerized plate is granulated; the particles are pre-foamed to a specified bulk density, are added into a mold and are foamed; curing cross-linking is further carried out in the same mold to improve the heat resistance of the product; by the adoption of an in-mold foaming process, a foam core of any complex shape can be obtained, and the utilization rate of the raw material is almost 100 percent, thereby substantially reducing the cost of the product. The invention provides a heat-resistant in-mold foamed acrylate foam product suitable for large-scale production. The foam has the characteristics of light weight, high strength and excellent heat resistance, and has extremely important application prospect in industries such as aircraft, ro