Addition type silicone rubber tackifier, silicone rubber composition and application

• Main Authors: SUETO, ZHAO CUIFENG, CHEN JIAWEN, QIAN LAIJIANG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2024
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention provides an addition type silicone rubber tackifier, a silicone rubber composition and application, and the addition type silicone rubber tackifier has a structure as shown in a formula I: in the formula I, R1 is a group containing benzoyloxy; r2 is alkyl or unsaturated alkyl, and m is 1, 2 or 3; r3 is a straight chain alkyl group of C2-C4; r4 is alkyl or unsaturated alkyl, R4 and R2 can be the same or different, and n is 1, 2 or 3; r < 5 > is methyl, isopropenyloxy or-(SiMe2O) pVi, and p is any integer between 4 and 200. The tackifier provided by the invention has benzoate groups capable of generating good adhesion with a base material, can obviously improve the adhesion strength of silicone rubber, and does not contain silicon-hydrogen bonds, and the prepared addition type liquid silicone rubber has good curing stability, contains siloxane chain segments of a silicone rubber body in a molecular chain, and has good compatibility with a silicone rubber system. 本发明提供了一种加成型硅橡胶增粘剂、硅橡胶组合物及应用，所述加成型硅橡