Modified melamine hard foam material and preparation method thereof

• Main Authors: SUN HAOJIE, WANG ENWEI, TANG GUANGBIN, ZHAO MENGXI, ZHANG CHANGYAN, LIU XU
• Format: Patent
• Language: Chinese; English
• Published: 28.02.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention belongs to the technical field of high polymer materials, and particularly discloses a modified melamine hard foam material and a preparation method thereof, and the modified melamine hard foam material is composed of the following raw material in parts by weight: 30-60 parts of melamine, 15-40 parts of paraformaldehyde, 10-35 parts of water, 5-20 parts of isobutanol, 3-10 parts of benzoxazine and 5-15 parts of polyvinyl butyral. The prepared melamine hard foam material has the characteristics of being low in powder falling rate, high in closed porosity, high in strength, good intoughness and high in bonding strength between post-processing treatment and a matrix. 本发明属于高分子材料技术领域，具体公开了一种改性三聚氰胺硬质发泡材料及其制备方法，由以下重量份数的原料组成:三聚氰胺30～60份，多聚甲醛15～40份，水10～35份，异丁醇5～20份，苯并噁嗪3～10份，聚乙烯醇缩丁醛5～15份，制备得到的三聚氰胺硬质发泡材料具有掉粉率低、闭孔率高、高强度、韧性好、后加工处理与基体粘结强度大的特点。