Heat-conductive insulating material for motor and preparation method thereof
A heat-conducting insulating material and extruder technology, which is applied in the field of motor material preparation, can solve problems such as insufficient heat conductivity, and achieve the effect of improving heat-conducting performance and good application prospect.
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Embodiment 1
[0040] This embodiment provides a thermally conductive insulating material, which is characterized in that, in parts by mass, the material includes the following components: 25 parts of polyimide, 12 parts of polyolefin, 8 parts of phenolic resin, 6 parts of homopolypropylene resin, 2 parts of graphene, 1 part of hydrogenated petroleum resin, and 8 parts of inorganic additives; the inorganic additives are calcium carbonate, molybdenum dioxide and silicon dioxide, and the molar ratio is 1:1:1.
[0041] Prepare the above materials as follows:
[0042] (1) Add polyimide, polyolefin, graphene and inorganic additives with a particle size of -200 mesh into the high-speed mixer according to the formula quantity, control the speed at 500r / min, mix evenly at 90°C, and then add extrusion machine;
[0043] (2) Add phenolic resin, homopolypropylene resin and hydrogenated petroleum resin into the high-speed mixer according to the formula quantity, control the rotating speed to be 500r / min...
Embodiment 2
[0046] This embodiment provides a thermally conductive insulating material, which is characterized in that, in parts by mass, the material includes the following components: 22 parts of polyimide, 15 parts of polyolefin, 8 parts of phenolic resin, 5 parts of homopolypropylene resin, 1 part of graphene, 1 part of hydrogenated petroleum resin, and 6 parts of inorganic additives; the inorganic additives are calcium carbonate, molybdenum dioxide and silicon dioxide, and the molar ratio is 1:0.8:0.9.
[0047] Prepare the above materials as follows:
[0048] (1) According to the formula quantity, add polyimide, polyolefin, graphene and inorganic additives with a particle size of -200 mesh into the high-speed mixer, control the speed at 600r / min, mix evenly at 100°C, and then add them to extrude machine;
[0049] (2) Add phenolic resin, homopolypropylene resin and optional hydrogenated petroleum resin into the high-speed mixer according to the formula quantity, control the speed at ...
Embodiment 3
[0052] This embodiment provides a thermally conductive insulating material, which is characterized in that, in parts by mass, the material includes the following components: 28 parts of polyimide, 12 parts of polyolefin, 5 parts of phenolic resin, 6 parts of homopolypropylene resin, 2 parts of graphene, 1 part of hydrogenated petroleum resin, and 5 parts of inorganic additives; the inorganic additives are calcium carbonate, molybdenum dioxide and silicon dioxide, and the molar ratio is 1:0.5:1.
[0053] Prepare the above materials as follows:
[0054] (1) According to the formula quantity, add polyimide, polyolefin, graphene and inorganic additives with a particle size of -200 mesh into the high-speed mixer, control the speed at 480r / min, mix evenly at 80°C, and then add the extrusion machine;
[0055] (2) Add phenolic resin, homopolypropylene resin and optional hydrogenated petroleum resin into the high-speed mixer according to the formula quantity, control the speed at 550r...
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Abstract
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