Composite material nylon material for polymer lithium ion battery
A technology of lithium-ion batteries and composite materials, applied in the field of composite nylon materials, can solve the problems of loss of shape retention, poor strength of BOPA film, difficulty in making films, etc., achieve excellent toughness and puncture resistance, and apply to a wide range of temperatures, The effect of reducing product quality problems
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[0038] In the following examples, the nylon resin of polyamide PA6 or PA66 is used as a raw material, by weight percentage, in 80%-97% (wt) nylon resin and 3wt%-20wt% nylon filler or plasticizer, arbitrarily selected The value is filled into the nylon matrix, blended to form a graft copolymer, and the aqueous solution method is used, and the salt solution is directly sent to the nylon production plant for polycondensation. The PA66 process usually adopts: PA66 resin drying-raw material mixing-extrusion granulation-injection molding proofing-testing and analysis. Process conditions: extrusion temperature 250--280°C, screw speed 300 rpm, injection temperature 230--260°C.
[0039] The reinforcement and toughening nylon filler or plasticizer contained in the above-mentioned nylon resin matrix can be that the nylon toughening agent added in the nylon resin is a grafted elastomer, and the addition amount of the grafted elastomer can be 3wt%-20wt% Any value within the range.
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