Three-dimensional biphasic fiber layer reinforced resin-based composite material and manufacturing method thereof
A technology for reinforcing resin-based and composite materials, which is applied in the field of materials, and can solve problems such as weak interfacial bonding, large difference in thermal expansion coefficient, and detachment of the contact layer between fibers and resin.
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Embodiment 1
[0042]Step 1: Soak the basalt fiber cloth in the potassium silicate mixed solution with a liquid-solid ratio of 4:1, add the modified hydrofluoric acid mixed solution dropwise to adjust its pH to 3, soak the fiber cloth for 3 hours, and take it out. Wash 5 times with a calcium bicarbonate mixed solution and dry at 60°C to obtain a fiber preform A that has been etched and hydroxylated on the surface;
[0043]Among them, the basalt fiber cloth is a combined needle-punched felt body, which is composed of 40% chopped strand mat, 20% non-twisted roving cloth and 40% chopped yarn according to the mass ratio. The composition contains 50% alumina according to the mass ratio. , 20% zirconium oxide, 20% titanium oxide and 10% beryllium oxide; the potassium silicate mixed solution is composed of 50% potassium silicate, 30% ethylene glycol monomethyl ether and 20% deionized water by volume; The mixed solution of hydrofluoric acid is composed of 70% hydrofluoric acid, 10% ethyl orthosilicate and 20...
Embodiment 2
[0051]Step 1: Soak the basalt fiber cloth in the potassium silicate mixed solution with a liquid-solid ratio of 3:1, add the modified hydrofluoric acid mixed solution dropwise to adjust its pH to 3.5, and take out the fiber cloth after soaking for 2.5 hours , Washed 6 times with a mixed solution of calcium bicarbonate and dried at 80°C to obtain a fiber preform A with surface etching and hydroxylation treatment;
[0052]Among them, the basalt fiber cloth is a combined needle-punched felt body, which is composed of 60% chopped strand felt, 20% non-twisted roving cloth and 20% chopped yarn according to the mass ratio. The composition contains 30% alumina according to the mass ratio. , 30% zirconium oxide, 25% titanium oxide and 15% beryllium oxide; the potassium silicate mixed solution is composed of 70% potassium silicate, 10% ethylene glycol monomethyl ether and 20% deionized water by volume; The hydrofluoric acid mixed solution is composed of 80% hydrofluoric acid, 10% ethyl orthosili...
Embodiment 3
[0060]Step 1: Soak the basalt fiber cloth in the potassium silicate mixed solution with a liquid-solid ratio of 6:1, add the modified hydrofluoric acid mixed solution dropwise to adjust its pH to 4, soak the fiber cloth for 3 hours, and then take out the fiber cloth. Wash 8 times with a calcium bicarbonate mixed solution and dry at 90°C to obtain a fiber preform A that has undergone surface etching and hydroxylation treatment;
[0061]Among them, the basalt fiber cloth is a combined needle-punched felt body, which is composed of 40% chopped strand felt, 40% untwisted roving cloth and 20% chopped yarn according to the mass ratio. The composition contains 30% alumina according to the mass ratio. , 40% zirconium oxide, 20% titanium oxide and 10% beryllium oxide; the potassium silicate mixed solution is composed of 50% potassium silicate, 10% ethylene glycol monomethyl ether and 40% deionized water by volume; The mixed solution of hydrofluoric acid is composed of 70% hydrofluoric acid, 20%...
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