A kind of electroplatable biphenyl type maleimide-based polyimide modified engineering plastic alloy and its preparation method
A technology of maleimide-based polyimide and engineering plastic alloy, which is applied in the direction of fibrous filler, dyed organic silicon compound treatment, etc., which can solve the problems that cannot satisfy the production and processing of fenders, cannot be electroplated, and have unstable dimensions and other problems, to achieve excellent electrical and mechanical properties, convenient operation, and low cost
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Embodiment 1
[0044] 21.6 grams (0.1 moles) of 3,3'-diamino-4,4'-dihydroxybiphenyl and 1730 grams of N-methyl-2- Pyril Add rolidone into the reaction kettle, stir and dissolve at room temperature, cool in an ice-water bath to below 5°C, add 19.6 grams (0.2 moles) of maleic anhydride, 364.0 grams (0.7 moles) of 2,2-bis[4-(3, 4-dicarboxyphenoxy) phenyl] propane dianhydride, after stirring for 1 hour, add 116.8 grams (0.4 moles) of 1,3-bis (3-aminophenoxy) benzene and 51.8 grams (0.1 moles) of 2 , 2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane, continue to stir the reaction for 4 hours, then add 183.6 grams (1.8 moles) of acetic anhydride and 0.65 grams (0.007 moles) of picoline, transfer Remove from the ice-water bath, heat up to 100°C, stir and react for 4 hours, add 2460 grams of ethanol and 1000 grams of methanol, stir rapidly for 1 hour, filter, wash with 865 grams of acetone for 2-3 times, and vacuum dry at 90°C for 3 hours to obtain 543.1 grams of BPMPI resin (theoretical yield is 54...
Embodiment 2
[0046]21.6 grams (0.1 moles) of 3,3'-diamino-4,4'-dihydroxybiphenyl, 3326 grams of N-methyl-2- Pyril Add rolidone and 1000 g of N,N-dimethylformamide into the reaction kettle, stir and dissolve at room temperature, cool in an ice-water bath to below 5°C, add 19.6 g (0.2 mol) of maleic anhydride, 624.0 g (1.2 mol) ) 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride, after stirring for 2 hours, add 200.0 grams (1.0 moles) of 3,4'-diaminodiphenyl ether , continue to stir and react for 2.5 hours, then add 428.4 grams (4.2 moles) of acetic anhydride and 9.48 grams (0.12 moles) of pyridine, remove the ice-water bath, heat up to 90 ° C, stir and react for 8 hours, add 21630 grams of ethanol, and stir rapidly for 1 hour, filtered, washed 2-3 times with 4326 gram of acetone, dried in vacuum at 90° C. for 5 hours, obtained 816.2 gram of BPMPI resin (theoretical yield was 822.0 gram), and was recorded as BPMPI-2, and the yield was 99.3%.
Embodiment 3
[0048] Put 4000 grams of 3-aminopropyltriethoxysilane aqueous solution with a concentration of 1% by mass, 600.0 grams of copper powder, 100.0 grams of graphene and 300.0 grams of aluminum powder into the reactor, and stir at 60 ° C for 1 hour , cooled to room temperature, filtered, and dried at 100° C. for 1 hour to obtain 1000.0 g of coupling agent-treated conductive filler, designated as ECF-1.
[0049] The 3-aminopropyltriethoxysilane aqueous solution, 400.0 gram silver-plated copper powder, 100.0 silver powder, 100.0 gram conductive carbon black and 400.0 gram aluminum powder are put into reaction kettle that 4000 gram mass percentage concentration is 3%, at 80 After stirring at ℃ for 2 hours, cool to room temperature, filter, and dry at 100℃ for 2 hours to obtain 1000.0 g of conductive filler treated with coupling agent, which is designated as ECF-2.
[0050] 8000 grams of mass percentage concentration is 5% glycidoxypropyl triethoxysilane aqueous solution, 200.0 grams o...
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