Repair material for repairing composite material and method for repairing composite material with repair material
A composite material and repair material technology, which is applied in the field of composite material repair, and can solve the problems of cumbersome and unsuitable repair process operation steps.
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preparation example Construction
[0026] The present invention has no particular limitation on the preparation of the first composition, for example, hydroxyl-terminated silicone rubber prepolymer and first inorganic fillers such as hollow glass microspheres, rigid thermal insulation tile scraps and hydrophobic gas phase two Silica is prepared by grinding it in a mortar for 10 to 60 minutes so that each component is thoroughly mixed uniformly.
[0027] The present invention also has no particular limitation on the preparation of the second composition. For example, the second composition can be described as inorganic fillers such as hollow glass microspheres and crushed material of rigid thermal insulation tile scraps and cross-linking agents such as orthosilicic acid. The ethyl ester and catalyst such as dibutyltin dilaurate are ground in a mortar for 30 to 60 minutes so that the ingredients are thoroughly mixed and prepared.
[0028] The room temperature curing silicone rubber continuous phase used in the me...
preparation example 1
[0034] Preparation of the first composition in the repair compound for repairing rigid thermal insulation tiles
[0035] Weigh 50 g of hydroxyl-terminated polydimethylsiloxane with a viscosity of 12,000 cst, 15 g of hollow glass beads, 10 g of crushed material of rigid heat-insulating tile scraps and 5.5 g of hydrophobic fumed silica, and place them in a 250-mL grinder. In a bowl, grind for 10 minutes to fully mix the above components uniformly to prepare the first composition of the repairing material.
[0036] Preparation of second composition in repair compound for repairing rigid thermal insulation tiles
[0037] Weigh 15g hollow glass microspheres, 10g rigid thermal insulation tile scraps, 5g ethyl orthosilicate and 0.5g dibutyltin dilaurate, place them in a mortar with a volume of 250mL, and grind for 30 minutes to make the above The ingredients are thoroughly mixed and uniform to prepare the second composition of the repair material.
[0038] Preparation of room tempe...
preparation example 2 to 10
[0041] It was carried out in substantially the same manner as in Preparation Example 1 except for the contents shown in the table below.
[0042] After testing, the density of each repairing material thus obtained before curing is 0.35-0.55g / cm 3 , the density after curing is 0.45~0.65g / cm 3 .
[0043]
[0044] Repair example 1
[0045] like figure 1 As shown in (a), a 150mm×150mm×25mm rigid thermal insulation tile with a high emissivity coating on the surface is installed on a titanium alloy metal load-bearing structure substrate through strain isolation pads and room temperature curing silicone rubber. The surface of the heat insulating tile has an irregular pit-shaped damage with a maximum diameter of 30mm and a depth of 20mm. CNC tools are used to machine the place into a regular cylindrical pit with a diameter of 30mm and a depth of 20mm, and then a piece of diameter 29.8mm high 18mm rigid thermal insulation tile column, the side and bottom surface of the thermal i...
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Abstract
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