Manufacturing process of silica gel slow-rebound sponge
A slow-rebound sponge and production process technology, applied in the production process of silicone slow-rebound sponge, in the field of sponge production, and can solve the problems of slowing down the resilience of silicone sponge, slowing down the rebound time of silicone sponge, and the inability of silicone sponge to pass the production process. , to achieve the effect of slowing down the overall resilience and wide practicability
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Embodiment 1
[0025] This embodiment provides a manufacturing process of a silica gel slow-rebound sponge. According to the formula percentage, the manufacturing process of the silica gel slow-rebound sponge includes 50-75 parts of foaming resin, 10-15 parts of foaming aid, and adhesive. 5-10 parts of resin, 10-20 parts of vulcanizing agent, 15-20 parts of vinyl, 5-10 parts of hydrogen-containing silicone oil and 5-10 parts of silica;
[0026] Preferably, in terms of formula percentage, the manufacturing process of the silicone slow-rebound sponge includes 57 parts of foaming resin, 12 parts of foaming aid, 7 parts of binder resin, 17 parts of vulcanizing agent, 18 parts of vinyl, and hydrogen-containing silicone oil. 6 parts and 8 parts silica.
Embodiment 2
[0028] The present embodiment provides a manufacturing process of a silicone slow-rebound sponge, and the specific steps are as follows:
[0029] (1) Mixing and stirring: the foaming resin and the foaming aid are stirred by the stirring equipment, the stirring time is 50-80min, and the binder resin is added during the stirring process;
[0030] (2) Pretreatment of raw materials: sieve vinyl, hydrogen-containing silicone oil and white carbon black in sequence with sieving equipment, and sieve 1-3 times;
[0031] (3) Secondary stirring: add the treated mixture in step (1) to the inside of the reactor, adjust the temperature of the reactor to 50-80°C, add the binder resin to the inside of the reactor, stir, and stir The time is 20-40min. After stirring, add vinyl, hydrogen-containing silicone oil and white carbon black in turn, and stir again after adding. The stirring time is 60-80min;
[0032] (4) Vulcanization: add the stirred mixture processed in step (3) to the inside of th...
Embodiment 3
[0041] Firstly, the foaming resin and foaming aid are stirred by a stirring device, and the stirring time is 50 minutes, and the binder resin is added during the stirring process, and the vinyl, hydrogen-containing silicone oil and white carbon black are sequentially screened by a screening device. sieve once, add the treated mixture to the interior of the reaction kettle, adjust the temperature of the reaction kettle to 50 ° C, add the binder resin to the interior of the reaction kettle and stir, the stirring time is 20min, and add in turn after stirring Vinyl, hydrogen-containing silicone oil and white carbon black are added and stirred again. The stirring time is 60 minutes. The treated stirring mixture is added to the inside of the mold, and a vulcanizing agent is added to the inside of the mold. The mixture is briefly cured inside the mold. The curing time is For 15 minutes, the mold was placed inside the oven, the oven temperature was 180°C, and the baking time was 5 minu...
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