High-damping reinforcing rubber sheet and preparation method thereof
A reinforcing film and high damping technology, which is applied in adhesives, epoxy resin glue, film/sheet adhesive, etc., can solve the problems of reduced local rigidity of the car body, potential safety hazards of people in the car, and small impact energy absorption. , to achieve the effect of improving ride comfort, reducing body weight, and strong anti-aging ability
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Example Embodiment
[0027] Example 1
[0028] The preparation method of a high-damping reinforced film in this embodiment includes the following steps:
[0029] Mix 22% butyl rubber 1751 in a kneader for 8 minutes by mass percentage, mix 12% flexible epoxy resin 107B, 6% E51 epoxy resin, 2% dicyandiamine, 5% di-tert-butyl peroxide Cumene, 53% light calcium, added to the kneader and mixed for 25 minutes, after all the raw materials are mixed uniformly, the bonding layer base material is obtained, and the bonding layer base material is extruded into a width of 300mm and a thickness of 2mm using a rubber extruder , The adhesive layer of length 500mm is ready to be used. The adhesive layer is covered with dipped glass fiber cloth, and the high damping reinforcement film is obtained by reciprocating pressing with a roller 4 times.
Example Embodiment
[0030] Example 2
[0031] The preparation method of a high-damping reinforced film in this embodiment includes the following steps:
[0032] Mix 12% butyl rubber 1751 by mass in a kneader for 5 minutes, mix 15% flexible epoxy resin 107B, 8% E51 epoxy resin, 1% hydrazide curing agent, 2% sulfur, 62% hollow micro Beads are added to the kneader and mixed for 30 minutes. After all the raw materials are mixed uniformly, the bonding layer base material is obtained. The bonding layer base material is extruded into a bonding layer with a width of 300mm, a thickness of 2.5mm and a length of 500mm using a rubber extruder To be used, the glass fiber cloth covering the adhesive layer prepared above is reciprocated 5 times with a roller to obtain a high-damping reinforcing film.
[0033] .
[0034] The high-damping reinforcement film of the present invention combines damping and reinforcement, has high strength, low density, light weight, obvious reinforcement effect, high damping coefficient, c...
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