Grafted glass microspheres as well as preparation method and application thereof

• Main Authors: LIU YAJIE, ZHANG YONG, LU YUCHONG, ZHAN YANHUI, ZHANG QINGBO, WANG JIANBIN, SI HAORAN, MA YUMIN, LI YAO, CAI JIANWU, TAO XINLIANG, WANG KE, HONG CONGZHE, CAI YAOWU, FAN RUOBIN
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

The invention provides a grafted glass microsphere and a preparation method thereof, and the grafted glass microsphere comprises a hollow glass microsphere, and a high-activity polyether chain segment and an alkoxy group which are formed on the surface of the hollow glass microsphere, the invention relates to a high-activity glass microsphere composite material which is mainly prepared from the following raw materials in parts by mass through reaction: 20-30 parts of glass microspheres, 3-8 parts of a first silane coupling agent and 3-8 parts of high-activity polyether glycol, the hydroxyl value of the high-activity polyether glycol is 30-110, the viscosity is 150-750 cps, and the molecular weight is 1000-3500. The invention also provides an application of the grafted glass microsphere in preparation of an MS (Murashige-Skoog) adhesive. The surface of the grafted glass microsphere contains alkoxy and a high-activity polyether chain segment, the surface polarity of the glass microsphere is improved, and the gr