Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a method for preparing water-soluble carbon black, the water-soluble carbon black and application of the water-soluble carbon black, and the method comprises the following steps: (1) uniformly dispersing graphene oxide and furnace carbon black in water to obtain dispersion liquid; (2) soaking the carbon black dispersion liquid obtained in the step (1) in a nitric acid solution with the mass fraction of 2.0-2.5% at the constant temperature of 25 DEG C for 1.5 hours; and (3) carrying out solid-liquid separation on the carbon black dispersion soaking solution obtained in the step (2), and drying to obtain hydrophilic carbon black; wherein the carbon black concentration of the carbon black dispersion liquid is 20-100g/L; the DBP absorption amount of the furnace carbon black is 80-100 cm < 3 >/100 g; the nitrogen adsorption specific surface area of the furnace carbon black is 100-160m < 2 >/g; and the average particle size of the furnace carbon black is 25-30 nm. The proper carbon black is selected, the nitric acid solution with the mass fraction of 2.0-2.5% is used, and the nitric acid solution and the carbon black are subjected to liquid-phase oxidation reaction under the proper reaction condition, so that the oxidized carbon black has good hydrophilicity and can have excellent dispersion stability in water.
本发明提供一种制备溶水性炭黑的方法、溶水性炭黑及其应用，包括如下步骤：(1)将氧化石墨烯和炉法炭黑置于水中分散均匀，得分散液；以及(2)将步骤(1)所得的炭黑分散液在恒定温度25℃置于质量分数2.0‑2.5％的硝酸溶液中浸泡1.5时；(3)将步骤(2)所得的炭黑分散浸泡液经过固液分离、烘干得到亲水性炭黑；所述炭黑分散液的炭黑浓度为20‑100g/L；所述炉法炭黑的DBP吸收量为80‑100cm3/100g；所述炉法炭黑的氮吸附比表面积为100‑160m2/g；所述炉法炭黑的平均粒径为25‑30nm。本发明通过选择合适的炭黑，使用质量分数2.0‑2.5％的硝酸溶液，在合适的反应条件下，使其与炭黑进行液相氧化反应，使得氧化后的炭黑具有很好的亲水性，能够在水中具有优异的分散稳定性。
The invention provides a method for preparing water-soluble carbon black, the water-soluble carbon black and application of the water-soluble carbon black, and the method comprises the following steps: (1) uniformly dispersing graphene oxide and furnace carbon black in water to obtain dispersion liquid; (2) soaking the carbon black dispersion liquid obtained in the step (1) in a nitric acid solution with the mass fraction of 2.0-2.5% at the constant temperature of 25 DEG C for 1.5 hours; and (3) carrying out solid-liquid separation on the carbon black dispersion soaking solution obtained in the step (2), and drying to obtain hydrophilic carbon black; wherein the carbon black concentration of the carbon black dispersion liquid is 20-100g/L; the DBP absorption amount of the furnace carbon black is 80-100 cm < 3 >/100 g; the nitrogen adsorption specific surface area of the furnace carbon black is 100-160m < 2 >/g; and the average particle size of the furnace carbon black is 25-30 nm. The proper carbon black is selected, the nitric acid solution with the mass fraction of 2.0-2.5% is used, and the nitric acid solution and the carbon black are subjected to liquid-phase oxidation reaction under the proper reaction condition, so that the oxidized carbon black has good hydrophilicity and can have excellent dispersion stability in water.
本发明提供一种制备溶水性炭黑的方法、溶水性炭黑及其应用，包括如下步骤：(1)将氧化石墨烯和炉法炭黑置于水中分散均匀，得分散液；以及(2)将步骤(1)所得的炭黑分散液在恒定温度25℃置于质量分数2.0‑2.5％的硝酸溶液中浸泡1.5时；(3)将步骤(2)所得的炭黑分散浸泡液经过固液分离、烘干得到亲水性炭黑；所述炭黑分散液的炭黑浓度为20‑100g/L；所述炉法炭黑的DBP吸收量为80‑100cm3/100g；所述炉法炭黑的氮吸附比表面积为100‑160m2/g；所述炉法炭黑的平均粒径为25‑30nm。本发明通过选择合适的炭黑，使用质量分数2.0‑2.5％的硝酸溶液，在合适的反应条件下，使其与炭黑进行液相氧化反应，使得氧化后的炭黑具有很好的亲水性，能够在水中具有优异的分散稳定性。
Method for preparing water-soluble carbon black, water-soluble carbon black and application of water-soluble carbon black
一种制备溶水性炭黑的方法、溶水性炭黑及其应用
27.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
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