文献类型：期刊文献

英文题名：Continuous, Large-Scale, and High Proportion of Bioinspired Phosphogypsum Composites via Reactive Extrusion

作者：Ran, Jingyu Su, Xiangdong Zhang, Jiangang Zhang, Jie Chen, Jiajun Liu, Kun Liu, Zhao Hu, Yi Sun, Liqun Jiang, Deyong

第一作者：冉景榆

通信作者：Ran, JY[1];Su, XD[2]

机构：[1]Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;[2]Guizhou Inst Technol, Key Lab Light Met Mat Proc Guizhou Prov, Guiyang 550003, Peoples R China;[3]Guizhou Haobainian Housing Ind Co Ltd, Guiyang 550000, Peoples R China;[4]Bijie Yuyuan New Mat Co Ltd, Bijie 551700, Peoples R China;[5]Guizhou Bldg Mat Qual Supervis Testing Ctr, Guiyang 550014, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;corresponding author), Guizhou Inst Technol, Key Lab Light Met Mat Proc Guizhou Prov, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2021

卷号：14

期号：19

外文期刊名：MATERIALS

收录：;EI(收录号：20214010974784);Scopus(收录号：2-s2.0-85115998202);WOS:【SCI-EXPANDED(收录号:WOS:000757154600011)】；

基金：This work was supported by the Science and Technology Support Plan Project of Guizhou Province (No. [2020]4Y041), the Science and Technology project of Guiyang (No. [2020]-8-2), the Basic Research Plan of Guizhou Province (No. [2019]1135), and the Natural science research project of Guizhou Education Department (No. [2021]052).

语种：英文

外文关键词：bio-inspired material; beta-hemihydrate phosphogypsum; reactive extrusion; mechanical strength; softening coefficient

摘要：Biological matter evolution provides an idea for the human design and synthesis of new materials. However, biomimetic materials only stay in laboratory-scale models, and their large-scale industrial applications are yet to be realized. Here, inspired by nacre's architecture, we report a continuous, large-scale method to fabricate phosphogypsum composites by reactive extrusion strategy. After curing for seven days, with more than 50 wt% of beta-hemihydrate phosphogypsum (beta-HPG), the compressive strength and softening coefficient were 24.98 MPa and 0.78, increasing by 110.0% and 20.0%, respectively, compared to the pouring method. The results show that the screw extrusion process can improve the mechanical strength and waterproof properties of beta-HPG hydration specimens without any special chemical admixtures and cements.