Silicone weather-proof sealant
A sealant and weather-resistant technology, which is applied in the field of sealants, can solve the problems of silicone sealant sealing ability decline, window sealing effect deterioration, sealing effect is not long-lasting, etc., to achieve long-lasting sealing effect, lasting and stable sealing effect, and improve the use of The effect of longevity
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Embodiment 1
[0062] refer to figure 1 , is a silicone weather-resistant sealant disclosed in the present invention, and the preparation method of the silicone weather-resistant sealant comprises the following steps:
[0063] S1. Add 45kg of room temperature vulcanized silicone rubber and 40kg of nano-calcium carbonate into the stirring tank, and stir for 30min at a rotating speed of 20r / min to form a premix;
[0064] S2. Add 4kg of methyl tributylketoxime silane, 0.5kg of vinyl tributylketoxime silane, 0.03kg of catalyst to the premix, rotate at 20r / min, and stir for 20min to form a silicone weather-resistant sealant;
[0065] S3. Discharging, discharging the silicone weather-resistant sealant into the packaging barrel;
[0066] S4. Sampling and testing;
[0067] S5. Qualified products are sealed and stored.
Embodiment 2
[0069] refer to figure 1 , is a silicone weather-resistant sealant disclosed in the present invention, and the preparation method of the silicone weather-resistant sealant comprises the following steps:
[0070]S1. Add 45kg of room temperature vulcanized silicone rubber and 45kg of nano-calcium carbonate into the stirring tank, and stir at a speed of 20r / min for 30min to form a premix;
[0071] S2. Add 5kg of methyl tributylketoxime silane, 0.75kg of vinyl tributylketoxime silane, 0.04kg of catalyst to the premix, rotate at 20r / min, and stir for 20min to form a silicone weather-resistant sealant;
[0072] S3. Discharging, discharging the silicone weather-resistant sealant into the packaging barrel;
[0073] S4. sampling test;
[0074] S5. Qualified products are sealed and stored.
Embodiment 3
[0076] refer to figure 1 , is a silicone weather-resistant sealant disclosed in the present invention, and the preparation method of the silicone weather-resistant sealant comprises the following steps:
[0077] S1. Add 45kg of room temperature vulcanized silicone rubber and 50kg of nano-calcium carbonate into the stirring tank, and stir at a speed of 20r / min for 30min to form a premix;
[0078] S2. Add 6 kg of methyl tributylketoxime silane, 1 kg of vinyl tributylketoxime silane, 0.05 kg of catalyst, and stir for 20 min at a speed of 20 r / min to form a silicone weather-resistant sealant;
[0079] S3. Discharging, discharging the silicone weather-resistant sealant into the packaging barrel;
[0080] S4. sampling test;
[0081] S5. Qualified products are sealed and stored.
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Abstract
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