A high-strength and high-temperature-resistant shield glue
A technology of shield glue and high temperature resistance, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., and can solve the problems of slow surface drying time of rubber adhesives, poor environmental protection of neoprene rubber, and suitable temperature Narrow range and other issues, to achieve the effect of improving surface drying and curing rate, convenient and firm bonding, and small limitations
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Embodiment 1
[0036] This embodiment relates to the shield glue described in this application, which is prepared by the following method:
[0037] A. Modification of SEBS
[0038] 1) Dissolve 100g of SEBS in 550g of toluene, raise the temperature to 50°C until the SEBS is completely dissolved, evacuate the reactor, then feed nitrogen into it, and continuously stir the SEBS in a nitrogen atmosphere;
[0039] 2) Raise the temperature of the reactor to 80°C, add 50g of methacrylate and 20g of hydroxypropyl methacrylate to it, and add BPO for polymerization;
[0040] 3) When the viscosity of the polymerization product increases to the point where gelation is about to occur, add 1 g of hydroquinone (HQ) to end the reaction, cool the temperature of the reactor to 50°C, and then add and 2,6-di-tert-butyl - 4-Methylphenol (BHT), to obtain a modified SEBS rubber.
[0041] B. Modification of chloroprene rubber
[0042] 1) Dissolve 100g of neoprene in 850g of toluene, raise the temperature to 60°C ...
Embodiment 2
[0050] A. Modification of SEBS
[0051] 1) Dissolve 100 g of SEBS in 600 ℃ of toluene, raise the temperature to 50° C. until the SEBS is completely dissolved, vacuumize the reaction vessel, then pass nitrogen into it, and continuously stir under the nitrogen atmosphere;
[0052] 2) Raise the temperature of the reactor to 80°C, add 35g of methacrylate and 35g of hydroxypropyl methacrylate to it, and add BPO for polymerization;
[0053] 3) When the viscosity of the polymerized product increases to the point where gel is about to occur, add 1g of HQ, cool the temperature of the reactor to 50°C, then add 2g of BHT to end the reaction and obtain a modified SEBS.
[0054] B. Modification of chloroprene rubber
[0055] 1) Dissolve 100g of neoprene in 900g of toluene, raise the temperature to 60°C until the neoprene is completely dissolved, vacuumize the reactor, then feed nitrogen into it, and continuously stir under nitrogen atmosphere;
[0056] 2) Raise the temperature of the rea...
Embodiment 3
[0063] A. Modification of SEBS
[0064] 1) Dissolve 100g of SEBS in 600g of toluene, raise the temperature to 50°C until the SEBS is completely dissolved, evacuate the reaction vessel, then feed nitrogen into it, and continuously stir under the nitrogen atmosphere;
[0065] 2) Raise the temperature of the reactor to 80°C, add 20g of methacrylate and 50g of hydroxypropyl methacrylate to it, and add 0.8g of BPO for polymerization;
[0066] 3) When the viscosity of the polymerized product increases to the point of gelation, add 1g of HQ, cool the temperature of the reactor to 50°C, and then add 2g of BHT to end the reaction to obtain a modified SEBS.
[0067] B. Modification of chloroprene rubber
[0068] 1) Dissolve 100g of neoprene in 900g of toluene, raise the temperature to 60°C until the neoprene is completely dissolved, vacuumize the reactor, then feed nitrogen into it, and continuously stir under nitrogen atmosphere;
[0069] 2) Raise the temperature of the reactor to 80...
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