Polyimide-epoxy resin adhesive and preparation method and application thereof
A technology of epoxy resin and polyimide, which is applied in the direction of epoxy resin glue, adhesive type, adhesive, etc., can solve the problem of limited heat resistance improvement, limited reactive groups, unsaturated adhesive system Low double bond content and other issues, to achieve the effect of industrialized production, low cost, and convenient source
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[0030] Example 1
[0031] 10.0 grams of maleimide-based polyimide (MHPI) powder, 10.0 grams of N,N,N′,N′-tetraglycidyl-3,3′-dimethyl-4,4′-bis Amino diphenylmethane and 60.0 grams of novolac epoxy resin were added to the reaction kettle, reacted at 80°C to 120°C for 1 to 2 hours, then cooled, and 65.5 grams of N,N-dimethylacetamide organic solvent was added at room temperature. Stir and dissolve to form a homogeneous transparent solution to obtain component A.
[0032] 19.1 grams of 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane curing agent, 0.9 grams of 2-ethyl-4-methylimidazole accelerator and 34.5 grams of N,N-di Methylacetamide organic solvents are mixed, stirred and dissolved to obtain a homogeneous and transparent B component solution.
[0033] Mix components A and B and stir evenly to obtain a polyimide-epoxy resin adhesive, which is referred to as PIEP-1.
[0034] Take an appropriate amount of PIEP-1 polyimide-epoxy resin adhesive, and evenly coat it on the standard stee...
Example Embodiment
[0036] Example 2
[0037] Add 70.0 grams of maleimide-based polyimide (MHPI) powder and 10.0 grams of N,N,N',N'-tetraglycidyl-4,4'-diaminodiphenylmethane into the reactor, After reacting at 80℃~120℃ for 1~2 hours, cooling, adding 45.5g of chloroform and 20.0g of N,N-dimethylformamide organic solvent, stirring and dissolving at room temperature, it is a homogeneous transparent solution, obtaining A Components.
[0038] 9.8 grams of 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane curing agent, 0.2 grams of 1,8-diaza-bicyclo[5.4.0]undecene-7 accelerator and 44.5 Grams of N,N-dimethylacetamide organic solvents are mixed, stirred and dissolved to obtain a homogeneous and transparent B component solution.
[0039] Mix components A and B and stir evenly to obtain a polyimide-epoxy resin adhesive, which is referred to as PIEP-2.
[0040] Take an appropriate amount of PIEP-2 polyimide-epoxy resin adhesive, and evenly coat it on the standard steel test piece, superimpose, clamp, and place i...
Example Embodiment
[0042] Example 3
[0043] 24.0 grams of maleimide-based polyimide (MHPI) powder, 40.0 grams of novolac epoxy resin and 20.0 grams of N,N,N′,N′-tetraglycidyl-4,4′-diamino Diphenylmethane was added to the reaction kettle, reacted at 80°C to 120°C for 1 to 2 hours, then cooled, 50.0 g of dichloromethane and 10.0 g of N-methyl-2-pyrrolidone organic solvent were added, and the mixture was stirred and dissolved at room temperature. Homogeneous transparent solution to obtain component A.
[0044] 15.5 g of 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride curing agent, 0.5 g of 1,8-diaza-bicyclo[5.4.0]undecene -7 accelerator was mixed with 40.0 grams of N-methyl-2-pyrrolidone organic solvent, stirred and dissolved to obtain a homogeneous and transparent B component solution.
[0045] Mix components A and B and stir evenly to obtain a polyimide-epoxy resin adhesive, which is referred to as PIEP-3.
[0046] Take an appropriate amount of PIEP-3 polyimide-epoxy resin adhesive, and eve...
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