Lignin/nitrile butadiene rubber composite and preparation method thereof
A technology of nitrile-butadiene rubber and composite materials, applied in the field of rubber materials, can solve the problems of reduced elongation at break and reduced toughness of composite materials, and achieve the effects of low cost, low cost, excellent anti-ultraviolet radiation and anti-aging functions
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[0042] Example 1
[0043] In parts by mass, preheat the internal mixer to 80°C, add 100 parts of dry NBR, 40 parts of dry alkali lignin powder, 5 parts of EHTPB, and 5 parts of ATA to the internal mixer in sequence, and mix for 15 minutes; Add 3 parts ZnCl 2 , Continue mixing for 15 minutes; cool the material to below 80°C, add vulcanization aid (5 parts ZnO, 2 parts stearic acid, 2.5 parts elemental S, 1.5 parts CBS, 1 part DM), and continue mixing for 10 minutes Discharge. The material from the internal mixer will continue to be smelted on a two-roll mill for 15 minutes and then matured for 24 hours. Finally, it is put into a plate vulcanizer and vulcanized at 160℃ and 15MPa for 30 minutes to obtain lignin. / NBR composite material. The acrylonitrile content of the selected nitrile rubber is 41%.
Example Embodiment
[0044] Example 2
[0045] In parts by mass, at 30°C, add 100 parts of dry NBR, 40 parts of dry enzymatic lignin powder, 5 parts of EHTPB, and 5 parts of ATA to the internal mixer in sequence, and mix for 15 minutes; add 3 parts ZnCl 2 , Continue mixing for 10 minutes; add vulcanization aid (5 parts ZnO, 2 parts stearic acid, 2.5 parts elemental S, 1.5 parts CBS, 1 part DM) to the internal mixer, and then continue mixing for 5 minutes. material. The material from the internal mixer will continue to be smelted on a two-roll mill for 15 minutes and then matured for 24 hours. Finally, it is put into a plate vulcanizer and vulcanized at 160℃ and 15MPa for 30 minutes to obtain lignin. / NBR composite material. The acrylonitrile content of the selected nitrile rubber is 41%.
Example Embodiment
[0046] Example 3
[0047] In parts by mass, preheat the internal mixer to 80°C, add 100 parts of dry NBR, 40 parts of dry alkali lignin powder, 5 parts of EHTPB, and 5 parts of dopamine to the internal mixer in sequence, and mix for 15 minutes; Add 3 parts ZnCl 2 , Continue mixing for 15 minutes; cool the material to below 80°C, add vulcanization aid (5 parts ZnO, 2 parts stearic acid, 2.5 parts elemental S, 1.5 parts CBS, 1 part DM), and continue mixing for 10 minutes Discharge. The material from the internal mixer will continue to be smelted on a two-roll mill for 15 minutes and then matured for 24 hours. Finally, it is put into a plate vulcanizer and vulcanized at 160℃ and 15MPa for 30 minutes to obtain lignin. / NBR composite material. The acrylonitrile content of the selected nitrile rubber is 41%.
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