MQ silicone resin is a uniquely structured silicone resin consisting of an organosilicon compound containing a tetrafunctional siloxane chain link (SiO4 /2, Q) and a monofunctional siloxane chain link (R3SiO1/2). , the organosilicon compound of M) is subjected to a co-hydrolysis-polycondensation reaction to form a three-dimensional spherical structure of a silicone grease. The molar mass is generally from 1000 to 8000 g/mol, and it has a state of being from a viscous fluid to a solid powder, hard and brittle, and has a wide range of glass transition temperature (Tg).
It is generally believed that MQ silicone resin is a two-layer compact spheroid, in which the core is a Si-O chain, a higher density, a cage SiO2 with a polymerization degree of 15 to 50, and a spherical shell of a lower density R3SiO1/2 layer. .


MQ silicones come in many different types due to the different organic groups R on the spherical shell:
When R is all methyl, it is called methyl MQ silicone or MQ silicone; when part R is H, it is called methyl hydrogen MQ resin; also methyl phenyl MQ silicone, vinyl MQ Silicon tree, phenyl MQ silicone resin, fluorine-containing MQ silicone resin, MDQ, MTQ silicone resin, etc. The performance of MQ silicone resin and its application range mainly depend on its synthesis process conditions and the type and quantity of organic groups in the molecule, ie the ratio of the number of M chain links and Q chain links; wherein the organic group R is mainly increased with other groups. The compatibility of the fractions serves as a viscosity-increasing effect, and the SiO4/2 chain link mainly enhances the strength of the composite material to reinforce.