A kind of phenoxycyclotriphosphazene active ester, halogen-free resin composition and its application
A technology of resin composition and phenoxy ring, which is applied in the field of phenoxycyclotriphosphazene active ester and halogen-free resin composition, can solve problems such as bad smell, influence of dielectric loss angle, and large amount of smoke. Achieve the effect of improving the electrical properties of the system and satisfying the effect of halogen-free flame retardant
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Embodiment 1
[0052] Add the solvent, phenoxycyclotriphosphazene containing hydroxyl groups (the proportion of which contains 2 hydroxyl groups is greater than 65%), acid-binding agent and catalyst into the reaction device, stir, pass through nitrogen protection, and gradually drop a certain amount at low temperature For p-benzoyl chloride, after reacting for 1-8 hours, add an appropriate amount of phenol, continue to react for 1-8 hours, cool to room temperature, filter with suction, distill the filtrate under pressure, and evaporate the solvent to obtain a viscous product.
[0053] After dissolving 30g of the above product in an organic solvent, add 70g of DCPD epoxy resin (the selected DCPD epoxy resin is HP-7200H (DIC), equivalent weight 275-280), an appropriate amount of imidazole and pyridine, stir and mix evenly to obtain a glue.
[0054] Select 300×300cm E-glass fiber cloth with smooth and flat surface, evenly coat the above glue, and bake it in an oven at 155°C for 7 minutes to make...
Embodiment 2
[0057] Add the solvent, phenoxycyclotriphosphazene containing hydroxyl groups (the proportion of which contains 2 hydroxyl groups is greater than 65%), acid-binding agent and catalyst into the reaction device, stir, pass through nitrogen protection, and gradually drop a certain amount at low temperature For p-benzoyl chloride, after reacting for 1-8 hours, add an appropriate amount of phenol, continue to react for 1-8 hours, cool to room temperature, filter with suction, distill the filtrate under pressure, and evaporate the solvent to obtain a viscous product.
[0058] After taking 30g of the above product and dissolving it in an organic solvent, add 40g of DCPD benzoxazine (the selected DCPD benzoxazine is LZ8260 (Huntsman)), 20g of DCPD epoxy resin (the selected DCPD epoxy resin is HP-7200H (DIC ), equivalent weight 275-280), styrene / maleic anhydride 10g (selected anhydride is EF-30, Sartomer), appropriate amount of imidazole and pyridine, stir and mix evenly to obtain glue....
Embodiment 3
[0062] Add the solvent, phenoxycyclotriphosphazene containing hydroxyl groups (the proportion of which contains 2 hydroxyl groups is greater than 65%), acid-binding agent and catalyst into the reaction device, stir, pass through nitrogen protection, and gradually drop a certain amount at low temperature For p-benzoyl chloride, after reacting for 1-8 hours, add an appropriate amount of phenol, continue to react for 1-8 hours, cool to room temperature, filter with suction, distill the filtrate under pressure, and evaporate the solvent to obtain a viscous product.
[0063] After dissolving 30g of the above product in an organic solvent, add 30g of DCPD cyanate (the selected DCPD cyanate is LONZA-Primaset DT-4000), 20g of 4,4'-diphenylmethane bismaleimide, DCPD ring 20g of epoxy resin (the selected DCPD epoxy resin is HP-7200H (DIC), equivalent weight 275-280), appropriate amount of aluminum acetylacetonate and pyridine, stir and mix evenly to obtain glue.
[0064] Select 300×300c...
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