Preparation method for graphene/nylon 6 nano composite material
A nanocomposite material and graphene technology, which is applied in the field of preparation of graphene/nylon 6 nanocomposite materials, can solve the problems of unfavorable large-scale preparation of graphene/nylon 6, increase in molecular weight, difficulty in polymerization, etc., and achieve large lateral size , comprehensive performance improvement, and the effect of improving compatibility
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[0021] Example 1:
[0022] (1) Dry the single-layer graphene oxide dispersion by the atomization drying method to obtain pleated spherical graphene oxide. The atomization temperature is 130°C, the graphene oxide sheet size is 0.3-5 microns, and the average size is 1 micron. The oxygen ratio is 5, and the water content is less than 0.1%;
[0023] (2) Add 3.5 parts by mass of pleated spherical graphene oxide and 2 parts by mass of deionized water to 100 parts by mass of caprolactam melt, stir and mix at a high speed (400 rpm) at 80° C. to form a dispersion;
[0024] (3) Under the protection of nitrogen, put the above dispersion into the polycondensation reactor, and heat to 250-270℃, react at 0.5-1MPa for 3 hours; then react under vacuum for 4 hours to obtain a polymer melt; The polymer melt is water-cooled and pelletized to obtain a graphene / nylon 6 nanocomposite material.
[0025] High-speed spinning with this material to obtain Figure 4 Wire roll shown. Due to the high amount of ...
Example Embodiment
[0027] Example 2:
[0028] (1) Dry the single-layer graphene oxide dispersion by the atomization drying method to obtain pleated spherical graphene oxide, the atomization temperature is 130°C, the size of the graphene oxide sheet is 1-20 microns, and the average size is 10 microns. The carbon to oxygen ratio is 4.2, and the moisture content is less than 0.1%;
[0029] (2) Add 2 parts by mass of pleated spherical graphene oxide and 2 parts by mass of deionized water to 100 parts by mass of the caprolactam melt, stir and mix at a high speed (400 rpm) at 80° C. to form a dispersion;
[0030] (3) Under the protection of nitrogen, put the above dispersion into the polycondensation reactor, and raise the temperature to 250-270℃, and react at 0.5-1MPa for 3 hours; then react under vacuum for 4 hours to obtain a polymer melt; The polymer melt is water-cooled and pelletized to obtain a graphene / nylon 6 nanocomposite material.
[0031] The properties of the obtained graphene / nylon 6 nanocompos...
Example Embodiment
[0032] Example 3:
[0033] (1) Dry the single-layer graphene oxide dispersion by the atomization drying method to obtain pleated spherical graphene oxide, the atomization temperature is 130°C, the size of the graphene oxide sheet is 1-40 microns, and the average size is 20 microns. The carbon to oxygen ratio is 3.9, and the moisture content is less than 0.1%;
[0034] (2) Add 0.5 parts by mass of pleated spherical graphene oxide and 2 parts by mass of deionized water to 100 parts by mass of the caprolactam melt, stir and mix at a high speed (400 rpm) at 80° C. to form a dispersion;
[0035] (3) Under the protection of nitrogen, put the above dispersion into the polycondensation reactor, and raise the temperature to 250-270℃, and react at 0.5-1MPa for 3 hours; then react under vacuum for 4 hours to obtain a polymer melt; The polymer melt is water-cooled and pelletized to obtain a graphene / nylon 6 nanocomposite material.
[0036] The properties of the obtained graphene / nylon 6 nanocomp...
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