Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation and use method of graphite antioxidant
The invention discloses a preparation method and a use method of a graphite antioxidant, belonging to the technical field of graphite antioxidants. The preparation method of the graphite antioxidant comprises the following step: S1, adding 30-100 parts of alkoxy silane into a reaction kettle, and then adding an aqueous solution of acetic acid, hydrochloric acid and the like, wherein the aqueous solution of acetic acid, hydrochloric acid and the like is prepared by dissolving 10-50 parts of acetic acid, hydrochloric acid and the like in 100 parts of water and then conducting uniform stirring. The boron/silicon-based antioxidant can be completely dissolved in water, a common organic solvent is not adopted, and no VOCs are discharged when the antioxidant is used; the antioxidant is faintly acid or neutral, so corrosion to a reaction container or other steel and the like is basically avoided; and after a graphite material is soaked or brushed with the antioxidant, a network structure such as Si-O-B-O-C can be formed through heat treatment, so pores or active sites of the graphite material can be better protected, and the anti-oxidation temperature of the graphite material is increased to 1000-1100 DEG C.
本发明公开了一种石墨抗氧化剂的制备及其使用方法，涉及石墨抗氧化剂技术领域，所述石墨抗氧化剂的制备包含以下步骤：S1、在反应釜内加入30‑100份烷氧基硅烷，之后加入醋酸、盐酸等的水溶液，且醋酸、盐酸等的水溶液比例为10‑50份醋酸、盐酸溶于100份的水中，搅拌均匀后得到醋酸或盐酸的水溶液。通过将硼‑硅基抗氧化剂能够完全溶解在水中，不采用常用的有机溶剂，在抗氧化剂使用时没有VOCs排放，并且本发明的抗氧化剂成弱酸性或中性，基本不会对反应容器或其他钢材等造成腐蚀，通过将石墨材料浸渍或刷涂抗氧化剂后，经过热处理，可形成Si‑O‑B‑O‑C等网络结构，能够对石墨材料的孔隙或活性位点提供更好的保护，将石墨材料的抗氧化温度提高到1000‑1100℃。
Preparation and use method of graphite antioxidant
The invention discloses a preparation method and a use method of a graphite antioxidant, belonging to the technical field of graphite antioxidants. The preparation method of the graphite antioxidant comprises the following step: S1, adding 30-100 parts of alkoxy silane into a reaction kettle, and then adding an aqueous solution of acetic acid, hydrochloric acid and the like, wherein the aqueous solution of acetic acid, hydrochloric acid and the like is prepared by dissolving 10-50 parts of acetic acid, hydrochloric acid and the like in 100 parts of water and then conducting uniform stirring. The boron/silicon-based antioxidant can be completely dissolved in water, a common organic solvent is not adopted, and no VOCs are discharged when the antioxidant is used; the antioxidant is faintly acid or neutral, so corrosion to a reaction container or other steel and the like is basically avoided; and after a graphite material is soaked or brushed with the antioxidant, a network structure such as Si-O-B-O-C can be formed through heat treatment, so pores or active sites of the graphite material can be better protected, and the anti-oxidation temperature of the graphite material is increased to 1000-1100 DEG C.
本发明公开了一种石墨抗氧化剂的制备及其使用方法，涉及石墨抗氧化剂技术领域，所述石墨抗氧化剂的制备包含以下步骤：S1、在反应釜内加入30‑100份烷氧基硅烷，之后加入醋酸、盐酸等的水溶液，且醋酸、盐酸等的水溶液比例为10‑50份醋酸、盐酸溶于100份的水中，搅拌均匀后得到醋酸或盐酸的水溶液。通过将硼‑硅基抗氧化剂能够完全溶解在水中，不采用常用的有机溶剂，在抗氧化剂使用时没有VOCs排放，并且本发明的抗氧化剂成弱酸性或中性，基本不会对反应容器或其他钢材等造成腐蚀，通过将石墨材料浸渍或刷涂抗氧化剂后，经过热处理，可形成Si‑O‑B‑O‑C等网络结构，能够对石墨材料的孔隙或活性位点提供更好的保护，将石墨材料的抗氧化温度提高到1000‑1100℃。
Preparation and use method of graphite antioxidant
一种石墨抗氧化剂的制备及其使用方法
WU FENG (Autor:in) / JIANG PENG (Autor:in) / YANG JIASHAN (Autor:in) / CHENG YALIN (Autor:in) / LIANG RAN (Autor:in) / XU YANLI (Autor:in) / LI HONGTAO (Autor:in) / HOU LEI (Autor:in) / XU MINGZHE (Autor:in) / FAN ZHENCHUN (Autor:in)
08.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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