Graphene-based polyester fiber capable of absorbing moisture, releasing sweat and rapidly dissipating heat and preparation method thereof
A technology of moisture absorption and perspiration, polyester fiber, applied in the field of graphene-based moisture absorption and perspiration fast heat dissipation polyester fiber and its preparation field, can solve the problems of poor heat dissipation, not washable, not environmentally friendly, etc., and reach the market application scope expansive effect
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Embodiment 1
[0029] 1. Preparation of graphene oxide with high O / C ratio
[0030] High concentrated sulfuric acid (93%) H 2 SO 4 : After mixing phosphoric acid at a mass ratio of 1:5, add 325 mesh flake graphite and stir evenly, then add potassium ferrate (Z value 2.2) and stir and mix for 8 hours at a low temperature of 5°C. Take the filter cake by centrifugation, wash with HCl and H 2 o 2 After cleaning, wash with deionized water until neutral, and dry by spray drying.
[0031] 2. XPS measured O / C ratio 4 / 6, FTIR analysis has a large number of oxidized groups, including hydroxyl, carboxyl, epoxy and carbonyl.
[0032] 3. Preparation of ultrafine graphene oxide
[0033] The above-mentioned 45 μm particle size is finely ground to 2-5 μm by jet mill.
[0034] 4. Manufacture of functional masterbatch
[0035] ① Add silane coupling agent KH-560 to the high mixer, the portion is 1.5% of the mass of graphene oxide, and mix and stir at 100°C for 30mins.
[0036] ② Add polyethylene wax an...
Embodiment 2
[0043] 1. Preparation of graphene oxide with high O / C ratio
[0044] 50% H2SO4 2 SO 4 :PO 3 After mixing at 1:9, add 2500 mesh natural flake graphite and stir evenly, then add sodium ferrate (Z value 2.2) and its auxiliary agent, and stir for 12 hours under ice bath. Take the filter cake by centrifugation, wash with HCl and H 2 o 2 After cleaning, it is washed with deionized water to neutrality, and dried into powder by freeze-drying method.
[0045] 2. XPS measured O / C ratio 3.7 / 6.3, FTIR infrared analysis has a large number of oxidized groups, hydroxyl, carboxyl, epoxy and carbonyl, and the crystal remains intact.
[0046] 3. Preparation of ultrafine graphene oxide
[0047] The above-mentioned 2500 mesh particle size is finely ground to 2um with a jet mill.
[0048] 4. Preparation of functional masterbatch
[0049] ① Add KH-550 silane coupling agent to graphene oxide in a high-speed mixer, set the temperature at 100°C, and mix for 30 minutes.
[0050] ② Add polyethy...
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