Flame-retardant plastic alloy capable of self-extinguishing from fire and capable of conducting heat and electricity, and preparation method thereof
A technology of electrical and thermal conductivity and flame retardant plastics, applied in the field of high molecular polymers and their preparation, can solve the problem of not being able to have electrical conductivity, thermal conductivity and self-extinguishing flame retardant properties at the same time, and achieve easy molding, excellent electrical conductivity, flowability, etc. good effect
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Embodiment 1
[0029] A flame-retardant plastic alloy that is self-extinguishing from fire and capable of conducting heat and electricity, comprising the following components:
[0030] component name Mass percentage (%) Acrylonitrile-Butadiene-Styrene Terpolymer 20 SG-8 type polyvinyl chloride 45 Phosphor flake graphite 20 Hexagonal Aluminum Nitride 7 Organotin Mercaptide 3 Aluminum oxide 5
[0031] Add SG-8 type polyvinyl chloride, mercaptan organotin, graphite flake, hexagonal aluminum nitride, aluminum oxide and acrylonitrile-butadiene-styrene terpolymer into the mixer in turn, keeping the speed of 200rpm, Mix for 10 minutes to obtain a homogeneous mixture;
[0032] The above mixture is extruded and granulated through a co-rotating parallel twin-screw extruder. The processing temperature is 130-180°C.
[0033] The above-mentioned materials have been tested to have a volume resistance of 3056Ωm and a thermal conductivity of 4.3W / mk. At t...
Embodiment 2
[0035] A flame-retardant plastic alloy that is self-extinguishing from fire and capable of conducting heat and electricity, comprising the following components:
[0036]
[0037]
[0038] Add SG-8 type polyvinyl chloride, mercaptan organotin, graphite flake, hexagonal aluminum nitride, aluminum oxide, acrylonitrile-styrene copolymer and butene rubber into the mixer in turn, keep the speed of 180rpm, and mix for 15min , to obtain a homogeneous mixture;
[0039] The above mixture is extruded and granulated through a co-rotating parallel twin-screw extruder. The processing temperature is 130-180°C.
[0040] The above-mentioned materials have been tested, and the volume resistance is 8187Ωm, the thermal conductivity is 2.9W / mk, and it has reached the self-extinguishing flame retardant level defined by the UL-94 test standard.
Embodiment 3
[0042] A flame-retardant plastic alloy that is self-extinguishing from fire and capable of conducting heat and electricity, comprising the following components:
[0043] component name Mass percentage (%) Acrylonitrile-Butadiene-Styrene Terpolymer 19 SG-8 type polyvinyl chloride 44 Phosphor flake graphite 22 Hexagonal Aluminum Nitride 7 Organotin Mercaptide 3 Aluminum oxide 5
[0044] Add SG-8 type polyvinyl chloride, mercaptan organotin, graphite flake, hexagonal aluminum nitride, aluminum oxide and acrylonitrile-butadiene-styrene terpolymer into the mixer in turn, keeping the speed of 200rpm, Mix for 10 minutes to obtain a homogeneous mixture;
[0045] The above mixture is extruded and granulated through a co-rotating parallel twin-screw extruder. The processing temperature is 130-180°C.
[0046] The above-mentioned materials have been tested, and the volume resistance is 1056Ωm, the thermal conductivity is 3.7W / mk, and th...
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Abstract
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