▎ 摘　　要

NOVELTY - Two-component silicone heat-conducting pouring sealant comprises component A and component B. The component A comprises 60-100 pts. wt. aniline methyltriethoxysilane, 30-60 pts. wt. octyltrimethoxysilane, 40-50 pts. wt. polysiloxane, 20-50 pts. wt. vinyl silicone oil, 5-7 pts. wt. ethyl silicone oil, 1-5 dimethicone oil, 10-30 pts. wt. aluminum hydroxide, 5-10 pts. wt. plasticizer, 1-5 pts. wt. silane coupling agent, 4-7 pts. wt. aluminate coupling agent, 20-30 pts. wt. hexagonal boron nitride and 8-16 pts. wt. graphene powder. The component B comprises 5-15 pts. wt. glycidyl etheroxypropyltrimethoxysilane, 10-30 pts. wt. methyltrimethoxysilane, 12-18 pts. wt. hydrogen-containing silicone oil, 10-30 pts. wt. aluminum oxide, 5-8 pts. wt. cross-linking agent, 1-6 pts. wt. inhibitor, 6-12 pts. wt. nitrogen-phosphorus flame retardant, 2-6 pts. wt. alkynyl cyclohexanol, 6-12 pts. wt. dibutyltin dilaurate and 2-6 pts. wt. titanium dioxide. USE - The pouring sealant is useful for electronic and solar industry encapsulating application, power battery pack, power supply module, inverter, transformer, junction box and industrial controller. ADVANTAGE - The pouring sealant is suitable for the encapsulation work in the small space, capable of satisfying the radiating requirement of the miniaturized electronic component, with good use effect. DETAILED DESCRIPTION - Two-component silicone heat-conducting pouring sealant comprises component A and component B. The component A comprises 60-100 pts. wt. aniline methyltriethoxysilane, 30-60 pts. wt. octyltrimethoxysilane, 40-50 pts. wt. polysiloxane, 20-50 pts. wt. vinyl silicone oil, 5-7 pts. wt. ethyl silicone oil, 1-5 dimethicone oil, 10-30 pts. wt. aluminum hydroxide, 5-10 pts. wt. plasticizer, 1-5 pts. wt. silane coupling agent, 4-7 pts. wt. aluminate coupling agent, 4-6 pts. wt. hydroxy-containing silicone rubber, 20-30 pts. wt. hexagonal boron nitride and 8-16 pts. wt. graphene powder. The component B comprises 5-15 pts. wt. glycidyl etheroxypropyltrimethoxysilane, 10-30 pts. wt. methyltrimethoxysilane, 8-16 pts. wt. octyltrimethoxysilane, 20-30 pts. wt. vinyl silicone oil, 12-18 pts. wt. hydrogen-containing silicone oil, 3-6 pts. wt. dimethicone oil, 10-30 pts. wt. aluminum oxide, 5-8 pts. wt. cross-linking agent, 1-6 pts. wt. inhibitor, 6-12 pts. wt. nitrogen-phosphorus flame retardant, 2-6 pts. wt. alkynyl cyclohexanol, 6-12 pts. wt. dibutyltin dilaurate and 2-6 pts. wt. titanium dioxide. An INDEPENDENT CLAIM is also included for preparing the pouring sealant, comprising (1) taking anilinomethyltriethoxysilane, octyltrimethoxysilane, polysiloxane, vinyl silicone oil, ethyl silicone oil, dimethicone oil, aluminum hydroxide, plasticizer, silane coupling agent, aluminate coupling agent, hydroxy-containing silicone rubber, hexagonal boron nitride and graphene powder, and taking glycidyl ether oxypropyltrimethoxysilane, methyltrimethoxysilane, octyltrimethoxysilane, vinyl silicone oil, hydrogen-containing silicone oil, dimethicone oil, aluminum oxide, crosslinking agent, inhibitor, nitrogen phosphorus flame retardant, alkynyl cyclohexanol, dibutyltin dilaurate and titanium dioxide, (2) adding anilinomethyltriethoxysilane, octyltrimethoxysilane and polysiloxane to reactor A with constant temperature stirring function in sequence, stirring and mixing under vacuum conditions for 30-45 minutes at 60-80℃ at a speed of 100-150 revolutions/minute, adding vinyl silicone oil, ethyl silicone oil and dimethicone oil to reactor A with constant temperature stirring function, stirring and mixing under vacuum conditions for 30-45 minutes at 60-80℃ at a speed of 100-150 revolutions/minute, adding aluminum hydroxide again in constant temperature stirring function reactor A, stirring and mixing for 10-20 minutes at 70-90℃ at a speed of 150-200 revolutions/minute, adding plasticizer, silane coupling agent and aluminate coupling agent to reactor A with constant temperature stirring function under vacuum, stirring and mixing for 20-30 minutes at 70-90℃ at a speed of 150-200 revolutions/minute, adding hydroxy-containing silicone rubber, hexagonal boron nitride, and graphene powder into reactor A with constant temperature stirring function under vacuum, stirring and mixing for 40-50 minutes under vacuum at a speed of 200-220 revolutions/minute at a temperature of 90-100℃ to obtain component A of the product, adding glycidyl etheroxypropyltrimethoxysilane, methyltrimethoxysilane, and octyltrimethoxysilane successively into reactor B with constant temperature stirring function, stirring and mixing under vacuum conditions for 30-40 minutes at 50-70℃ at a speed of 80-120 revolutions/minute, adding vinyl silicone oil, hydrogen-containing silicone oil, and dimethicone oil to reactor B with constant temperature stirring function, stirring and mixing for 30-40 minutes under vacuum at 50-70℃ at a speed of 80-120 revolutions/minute, adding aluminum oxide to reactor B with constant temperature stirring function, stirring and mixing under vacuum conditions for 20-30 minutes at 80-90℃ at a speed of 160-180 revolutions/minute, adding cross-linking agent, inhibitor, nitrogen and phosphorus flame retardant to reactor B with constant temperature stirring function again, stirring and mixing for 20-30 minutes at 80-90℃ at a speed of 160-180 revolutions/minute, adding alkynyl cyclohexanol, dibutyltin dilaurate, titanium dioxide again in constant temperature stirring function reactor B under vacuum, stirring and mixing for 40-50 minutes under vacuum at a speed of 200-220 revolutions/minute at a temperature of 90-100℃ to obtain component B of the product, and (3) adding the prepared product A component and product B component into the reactor C with constant temperature stirring function according to the ratio of 1:1, first degassing for 20-30 minutes, stirring and mixing at 140-180℃ for 30-40 minutes at a speed of 300-350 revolutions/minute under vacuum to obtain pouring sealant.