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A platform for research: civil engineering, architecture and urbanism
Regenerated graphite-cement mortar composite material and preparation method thereof
The invention belongs to the field of material chemistry, and provides a preparation method of a regenerated graphite-cement mortar composite material, which comprises the following steps: (1) heatingwaste lithium ion battery negative electrode powder to 600-1000 DEG C, keeping the temperature, and cooling to room temperature to obtain battery negative electrode powder; (2) performing primary soaking on the battery negative electrode powder by using an acid, carrying out water washing, adding an oxidizing agent, performing secondary soaking, and carrying out water washing and drying to obtainregenerated graphite; and (3) adding the regenerated graphite into water, carrying out ultrasonic dispersion, adding cement, sandstone and an antifoaming agent, and carrying out mixing under stirringso as to obtain the regenerated graphite-cement mortar composite material. The regenerated graphite-cement mortar composite material prepared by the invention has excellent compression resistance andbending resistance, and the properties are respectively improved by 45.8% and 48.9% in comparison with those of a material without regenerated graphite.
本发明属于材料化学领域，提供一种再生石墨‑水泥砂浆复合材料的制备方法，包括以下步骤：(1)将废旧锂离子电池负极粉料加热至600℃‑1000℃，保温，冷却至室温，得到电池负极粉末；(2)将电池负极粉末用酸进行第一次浸泡，水洗，再加入氧化剂进行第二次浸泡，水洗，烘干，即得再生石墨；(3)将再生石墨中加入水中超声分散，再加入水泥、砂石和消泡剂混合搅拌，得到再生石墨‑水泥砂浆复合材料。本发明制备的再生石墨‑水泥砂浆复合材料具有优异的抗压性能和抗折性能，较未添加再生石墨的材料相比，性能分别提升了45.8％和48.9％。
Regenerated graphite-cement mortar composite material and preparation method thereof
The invention belongs to the field of material chemistry, and provides a preparation method of a regenerated graphite-cement mortar composite material, which comprises the following steps: (1) heatingwaste lithium ion battery negative electrode powder to 600-1000 DEG C, keeping the temperature, and cooling to room temperature to obtain battery negative electrode powder; (2) performing primary soaking on the battery negative electrode powder by using an acid, carrying out water washing, adding an oxidizing agent, performing secondary soaking, and carrying out water washing and drying to obtainregenerated graphite; and (3) adding the regenerated graphite into water, carrying out ultrasonic dispersion, adding cement, sandstone and an antifoaming agent, and carrying out mixing under stirringso as to obtain the regenerated graphite-cement mortar composite material. The regenerated graphite-cement mortar composite material prepared by the invention has excellent compression resistance andbending resistance, and the properties are respectively improved by 45.8% and 48.9% in comparison with those of a material without regenerated graphite.
本发明属于材料化学领域，提供一种再生石墨‑水泥砂浆复合材料的制备方法，包括以下步骤：(1)将废旧锂离子电池负极粉料加热至600℃‑1000℃，保温，冷却至室温，得到电池负极粉末；(2)将电池负极粉末用酸进行第一次浸泡，水洗，再加入氧化剂进行第二次浸泡，水洗，烘干，即得再生石墨；(3)将再生石墨中加入水中超声分散，再加入水泥、砂石和消泡剂混合搅拌，得到再生石墨‑水泥砂浆复合材料。本发明制备的再生石墨‑水泥砂浆复合材料具有优异的抗压性能和抗折性能，较未添加再生石墨的材料相比，性能分别提升了45.8％和48.9％。
Regenerated graphite-cement mortar composite material and preparation method thereof
一种再生石墨-水泥砂浆复合材料及其制备方法
DU SHAOLIN (author) / XIE YINGHAO (author) / YU HAIJUN (author) / ZHANG XUEMEI (author) / MING BANGLAI (author) / HOU PENG (author)
2020-07-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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