Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon nitride foamed ceramic for purifying water and preparation method of silicon nitride foamed ceramic
The invention discloses silicon nitride foamed ceramic for purifying water. Water treatment enzyme is loaded on the hole surface of silicon nitride foamed ceramic in a vacuum impregnation mode, an adhesion promoter accounting for 1-3% of the total mass of water treatment enzyme impregnation liquid is added during vacuum impregnation, and the silicon nitride foamed ceramic is formed by sintering reaction raw materials. The reaction raw materials comprise, by mass, 100 parts of silicon nitride, 2-4 parts of carboxymethyl cellulose, 3-5 parts of a high-temperature binder, 3-8 parts of a dispersant, 1-5 parts of vegetable sponge and 2-10 parts of a pore-forming agent, wherein the vegetable sponge is dried at the temperature of 50-80 DEG C after being cleaned, and the pore-forming agent is graphite. The sintering conditions are as follows: argon or nitrogen is introduced for 10-60 min, the temperature is raised to 300-400 DEG C at the rate of 3-5 DEG C/min and kept for 0.5-2 h, then the temperature is raised to 600-650 DEG C at the rate of 2-3 DEG C/min and kept for 3-4 h, and then the temperature is raised to 1300-1500 DEG C at the rate of 1-2 DEG C/min and kept for 2-3 h.
一种用于净化水的氮化硅泡沫陶瓷，将水处理酶通过真空浸渍的方式负载于氮化硅泡沫陶瓷的孔洞表面，所述真空浸渍时还加入水处理酶浸渍液总质量1‑3%的助粘剂，其中氮化硅泡沫陶瓷由反应原料烧结而成，所述反应原料按质量份数配比由100份氮化硅、2‑4份羧甲基纤维素、3‑5份高温粘结剂、3‑8份分散剂、1‑5份丝瓜瓤和2‑10份造孔剂组成，其中丝瓜瓤洗净后在50‑80℃的温度条件下烘干，造孔剂是石墨；所述烧结条件是：通入氩气或氮气10‑60min，以3‑5℃/min的速率升温至300‑400℃并保温0.5‑2h，接着以2‑3℃/min的速率升温至600‑650℃并保温3‑4h，再以1‑2℃/min的速率升温至1300‑1500℃并保温2‑3h。
Silicon nitride foamed ceramic for purifying water and preparation method of silicon nitride foamed ceramic
The invention discloses silicon nitride foamed ceramic for purifying water. Water treatment enzyme is loaded on the hole surface of silicon nitride foamed ceramic in a vacuum impregnation mode, an adhesion promoter accounting for 1-3% of the total mass of water treatment enzyme impregnation liquid is added during vacuum impregnation, and the silicon nitride foamed ceramic is formed by sintering reaction raw materials. The reaction raw materials comprise, by mass, 100 parts of silicon nitride, 2-4 parts of carboxymethyl cellulose, 3-5 parts of a high-temperature binder, 3-8 parts of a dispersant, 1-5 parts of vegetable sponge and 2-10 parts of a pore-forming agent, wherein the vegetable sponge is dried at the temperature of 50-80 DEG C after being cleaned, and the pore-forming agent is graphite. The sintering conditions are as follows: argon or nitrogen is introduced for 10-60 min, the temperature is raised to 300-400 DEG C at the rate of 3-5 DEG C/min and kept for 0.5-2 h, then the temperature is raised to 600-650 DEG C at the rate of 2-3 DEG C/min and kept for 3-4 h, and then the temperature is raised to 1300-1500 DEG C at the rate of 1-2 DEG C/min and kept for 2-3 h.
一种用于净化水的氮化硅泡沫陶瓷，将水处理酶通过真空浸渍的方式负载于氮化硅泡沫陶瓷的孔洞表面，所述真空浸渍时还加入水处理酶浸渍液总质量1‑3%的助粘剂，其中氮化硅泡沫陶瓷由反应原料烧结而成，所述反应原料按质量份数配比由100份氮化硅、2‑4份羧甲基纤维素、3‑5份高温粘结剂、3‑8份分散剂、1‑5份丝瓜瓤和2‑10份造孔剂组成，其中丝瓜瓤洗净后在50‑80℃的温度条件下烘干，造孔剂是石墨；所述烧结条件是：通入氩气或氮气10‑60min，以3‑5℃/min的速率升温至300‑400℃并保温0.5‑2h，接着以2‑3℃/min的速率升温至600‑650℃并保温3‑4h，再以1‑2℃/min的速率升温至1300‑1500℃并保温2‑3h。
Silicon nitride foamed ceramic for purifying water and preparation method of silicon nitride foamed ceramic
一种用于净化水的氮化硅泡沫陶瓷及其制备方法
DU JIANZHOU (Autor:in) / QIU LONG (Autor:in) / PENG SHUIJUN (Autor:in) / LI YUNPING (Autor:in) / WANG LU (Autor:in) / WANG LUMING (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Chinesisch
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