Preparation method for halogen-free flame-retardant rubber composite
A technology of flame retardant rubber and composite materials, which can be used in fibrous fillers, dyed organosilicon compound treatment, dyed polymer organic compound treatment, etc. problems, to achieve the effect of high thermal decomposition temperature, reduce production costs, and avoid secondary hazards
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Embodiment 1
[0011] (1) 50 parts by mass of aluminum hydroxide nanoparticles were mixed and stirred with a silane coupling agent solution, dried at 120°C for 10 hours, and then dried at 150°C for 1 hour, and put into a desiccator for use.
[0012] (2) Mix 100 parts by mass of EPDM raw rubber and filler with a banbury mixer, cool the mixed rubber and add it to the roller. After the rubber wraps the roller, add 10 to 300 parts according to the formula design. Al(OH) in parts by mass 3 Nanoparticle dry powder heat-conducting filler, 1-5 parts by mass of accelerator, repeatedly kneaded on the roller until uniform, thin pass 5-10 times, then add 1-3.5 parts by mass of vulcanizing agent, and mix evenly, thin pass The next piece is to get the flame retardant rubber compound;
[0013] (3) After preforming the mixed EPDM rubber, put it into the mold, and after filling the mold with cold pressure, place the mold on a flat vulcanizing machine for one-stage vulcanization. The first-stage vulcan...
Embodiment 2
[0017] (1) Mix and stir 100 parts by mass of Al(OH)3 nanoparticles with a silane coupling agent solution, dry at 120°C for 10 hours, and then dry at 150°C for 1 hour, then put it in a desiccator for use .
[0018] (2) Mix 100 parts by mass of EPDM raw rubber and filler with a banbury mixer, cool the mixed rubber and add it to the roller. After the rubber wraps the roller, add 10 to 300 parts according to the formula design. Al(OH) in parts by mass 3 Nanoparticle dry powder heat-conducting filler, 1-5 parts by mass of accelerator, repeatedly kneaded on the roller until uniform, thin pass 5-10 times, then add 1-3.5 parts by mass of vulcanizing agent, and mix evenly, thin pass The next piece is to get the flame retardant rubber compound;
[0019](3) After preforming the mixed EPDM rubber, put it into the mold, and after filling the mold with cold pressure, place the mold on a flat vulcanizing machine for one-stage vulcanization. The first-stage vulcanization temperature is ...
Embodiment 3
[0023] (1) 150 parts by mass of Al(OH) 3 The nanoparticles were mixed and stirred with a silane coupling agent solution, dried at 120°C for 10 h, and then dried at 150°C for 1 h, and put into a desiccator for use.
[0024] (2) Mix 100 parts by mass of EPDM raw rubber and filler with a banbury mixer, cool the mixed rubber and add it to the roller. After the rubber wraps the roller, add 10 to 300 parts according to the formula design. Parts by mass of Al(OH)3 nanoparticle dry powder heat-conducting filler, parts by mass of accelerator 1-5, repeatedly kneaded on the roller until uniform, thin pass 5-10 times, and then add 1-3.5 parts by mass for vulcanization agent, and then kneaded evenly, and thinly pass the next sheet to obtain a flame-retardant rubber compound;
[0025] (3) After preforming the mixed EPDM rubber, put it into the mold, and after filling the mold with cold pressure, place the mold on a flat vulcanizing machine for one-stage vulcanization. The first-stage...
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