Amino acid modified silicon dioxide and preparation method thereof as well as resin mold and preparation method thereof

• Main Authors: YE JINRUI, LIANG QIANYU, HE WEIYE, SONG WANNING, TIAN YAZHOU
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses amino acid modified silicon dioxide and a preparation method thereof as well as a resin mold and a preparation method thereof, and relates to the technical field of resin molds. Carboxyl is introduced to a side group of spherical silicon dioxide containing double bonds on the surface, hydrophilicity is improved by modifying the carboxyl, so that the porosity of a finished resin mold is greatly improved, calcium carbonate and titanium dioxide are introduced, a good modification effect is achieved, the water absorption rate of the resin mold can be greatly improved by adding the modified filler, and the higher the water absorption rate is, the better the modification effect is. The more the holes are, the more the communicating holes are, the higher the porosity is, and the mechanical property of the mold can be improved. 本发明公开了一种氨基酸改性二氧化硅及其制备方法和树脂模具及其制备方法，涉及树脂模具技术领域。本发明在表面含双键的球型二氧化硅侧基上引进羧基，通过改性修饰羧基提高亲水性，从而大幅提高树脂模具成品的孔隙率，并引入碳酸钙与钛白粉，得到了良好的改性效果，增加改性填料既能大幅提高树脂模具的吸水率，吸水率越高，开孔越多，连通孔越多，孔隙率越高，并