Preparation method of tackifier used for organosilicone LED packaging colloidal system

• Main Authors: CHEN WEI, WEN RONGZHENG
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2017
• 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 relates to a preparation method of a tackifier used for an organosilicone LED packaging colloidal system. The preparation method comprises the following steps: adding siloxane with an acrylate group and siloxane with an epoxy group at the amount-of-substance ratio of 1:(1-1.5) into a reaction flask, stirring and mixing; raising the temperature to 50-70 DEG C, adding deionized water whose amount-of-substance ratio to siloxane with the acrylate group is 1:1.5, stirring for half an hour, adding a basic catalyst into the reaction flask, reacting for 4-6 hours, reacting under the vacuum condition for 0.5-1.5 hours, stopping vacuum operation, adding an acid whose amount is the same with that of the basic catalyst, neutralizing the basic catalyst to neutral, stirring to react for half an hour, stopping heating after finishing neutralizing, cooling, and discharging, wherein the reactions are carried out at the temperature of 50-70 DEG C; adding normal heptane whose mass is the same with that of the silo