A kind of silicone potting glue and preparation method thereof
A technology of silicone potting glue and base glue, applied in adhesives, non-polymer adhesive additives, photovoltaic power generation, etc., can solve the problems of silicone potting glue difficulties, poor mechanical properties, poor flame retardancy, etc. To achieve the effect of improving the outdoor service life, good protection, and good leveling
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[0033] The preparation method of the above-mentioned silicone potting glue comprises the following steps:
[0034] (1) Add the double-ended hydroxyl polydisiloxane B and the semi-reinforcing filler into the dispersion container, heat up to 110-125°C and blend for 30-90 minutes. , to obtain base glue;
[0035] (2) adding the base glue obtained in step (1), double-terminated hydroxyl polydisiloxane A, liquid MQ resin, plasticizer A, pigment and deep curing agent into the high-speed dispersing kettle, stirring uniformly, evacuating and cooling, Component A can be obtained;
[0036] (3) adding the crosslinking agent, the coupling agent, the organotin catalyst and the plasticizer B to the kettle, stirring uniformly, and after ageing, filtering out the precipitate to obtain the component B;
[0037] (4) Mix component A and component B uniformly, and obtain silicone potting compound after defoaming.
[0038] Preferably, the mass ratio of the base gum to the double-ended hydroxyl pol...
Embodiment 1
[0045] A silicone potting glue, the preparation raw materials of which include component A and component B, and the preparation raw materials of component A include, in parts by mass: 100 parts by mass of base glue, 28.6 parts by mass of double-terminated hydroxyl polydisiloxane A parts by mass, 12.8 parts by mass of liquid MQ resin, 9.6 parts by mass of dimethyl silicone oil (viscosity 100 mPa.s), 1.3 parts by mass of carbon black slurry and 1.2 parts by mass of deep curing agent; the raw materials for the preparation of component B are in parts by mass Including: 40 parts by mass of phenyltrimethoxysilane, 20 parts by mass of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, 0.5 parts by mass of dibutyltin dilaurate, 100 parts by mass of dimethyl Silicone oil (viscosity 100mPa.s); the raw materials for the preparation of the base glue include: double-terminated hydroxyl polydisiloxane B and aluminum hydroxide, and the mass ratio of the two is 100:180. The viscosity of the doub...
Embodiment 2
[0052] A silicone potting glue, the preparation raw materials of which include component A and component B, and the preparation raw materials of component A include, in parts by mass: 100 parts by mass of base glue, 28.6 parts by mass of double-terminated hydroxyl polydisiloxane A parts by mass, 12.8 parts by mass of liquid MQ resin, 9.6 parts by mass of dimethyl silicone oil (viscosity 100 mPa.s), 1.3 parts by mass of carbon black slurry and 1.2 parts by mass of deep curing agent; the raw materials for the preparation of component B are in parts by mass Including: 35 parts by mass of phenyltrimethoxysilane, 20 parts by mass of N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, 0.5 parts by mass of dibutyltin dilaurate, 100 parts by mass of dimethyl Silicone oil (viscosity 100 mPa.s); the raw materials for the preparation of the base glue include: double-terminated hydroxyl polydisiloxane B and aluminum hydroxide, and the mass ratio of the two is 100:180. The viscosities of the d...
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