Casting light composite foam floating material and preparation method thereof
A technology of composite foam and floating body, applied in the field of polymer-based composite foam materials
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Embodiment 1
[0024] Castable lightweight composite foam floating body material consists of two components: A and B:
[0025] Preparation of component A:
[0026] Weigh 100 grams of epoxy resin, 50 grams of benzyl glycidyl ether diluent, 5 grams of polyoxyethylene sorbitan monooleate surfactant (Tween-80), 3 grams of silane coupling agent, 1.5 grams Anhydrous ethanol blowing agent, 1.5 grams of fumed silica, 40 grams of density 0.25g / cm 3 and a density of 0.38g / cm 3 The graded hollow glass microspheres were placed in a 500mL three-necked bottle equipped with a stirrer, and stirred evenly to obtain component A of the composite foam floating body material.
[0027] Preparation of Component B:
[0028] Weigh 60 grams of 3,3 , -Diethyl-4,4 , -Diaminodiphenylmethane, 30 grams of phenolic ethylenediamine, 3 grams of 2,4,6 tris(dimethylaminomethyl)phenol catalyst are stirred evenly in a 500mL three-necked flask equipped with a stirrer to prepare a composite foam floating body material ...
Embodiment 2
[0031] The composite foam floating body material is composed of two components: A and B:
[0032] Preparation of component A:
[0033] Weigh 100 grams of epoxy resin, 50 grams of phenyl glycidyl ether diluent, 5 grams of alkylphenol polyoxyethylene ether surfactant (OP-10), 2 grams of silicone foam stabilizer, 2.5 grams of silane coupling agent , 4 grams of fluorodichloroethane (HCFC-141b) blowing agent, 1.5 grams of fumed silica, 50 grams of density is 0.32g / cm 3 The hollow glass microspheres were placed in a 500mL three-necked bottle equipped with a stirrer, and stirred evenly to obtain component A of the floating body material.
[0034] Component B: Isophoronediamine
[0035] The mass ratio of A and B is 100 to 20--30, and the pot life of the buoyancy material is 60 minutes. Initial curing at room temperature for 24 hours, complete curing within one week, or 4 hours at 80°C. Buoyancy material density 0.48g / cm 3 , compressive strength 19.6Mpa. The bubble holes are...
Embodiment 3
[0037] The composite foam floating body material is composed of two components: A and B:
[0038] Preparation of component A:
[0039] Weigh 100 grams of epoxy resin, 40 grams of n-butanol glycidyl ether reactive diluent, 5 grams of polyoxyethylene sorbitan monooleate surfactant (Tween-20), 3 grams of silane coupling agent, 4 grams of toluene blowing agent, 1.5 grams of fumed silica, 40 grams of density of 0.38g / cm 3 The hollow glass microspheres were placed in a 500mL three-necked bottle equipped with a stirrer, and stirred evenly to obtain component A of the floating body material.
[0040] Preparation of Component B:
[0041] Weigh 70 grams of diethylenetriamine butyl glycidyl ether adduct, 30 grams of phenolic ethylenediamine, and 0.5 grams of 2,4,6 tris(dimethylaminomethyl)phenol catalyst in a 500mL three-necked flask equipped with a stirrer Stir evenly in medium to prepare component B of the floating body material.
[0042] The mass ratio of A and B is 100 to ...
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