Low-viscosity silane modified polyether sealant and preparation method thereof

• Main Authors: SHI JUNTAO, YU KAILUN, CAO MINGBAO, QIU XIANPING, ZHENG PING, GUAN ZHIHANG, CHEN KEHAI, YAN HONGZHOU
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

The invention relates to the technical field of sealant preparation, and particularly discloses a low-viscosity silane modified polyether sealant and a preparation method thereof.The preparation method comprises the following steps that firstly, a first raw material is added into a stock bin of an acoustic resonance paddle-free mixer, and the first raw material is heated, dewatered in vacuum and mixed for the first time; 2, after the first-time raw material mixing is finished, a second raw material is added into the mixture, and second-time raw material mixing is carried out; 3, after the second-time raw material mixing is finished, a third raw material is added, and third-time raw material mixing is carried out; and 4, after the third-time raw material mixing is finished, discharging to obtain the low-viscosity silane modified polyether sealant. The method provided by the invention has the advantages of high mixing efficiency, low product cost, environment-friendly and energy-saving preparation process and e