ZHOU Yehong1, GUO Chenfu2, SHANG Zhixin3, REN Dongyin3, GAI Guosheng4, LIANG Wenting1
（1. School of Environmental Science& Resource, Shanxi University, Taiyuan 030006, China;2.ShanxiHujin New Material Co., Ltd., Taiyuan 030006, China;3. College of Textile and Clothing, Dezhou University, Dezhou, 253023, China;4. School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China）
Abstract: To mitigate the environmental pollution caused by the large accumulation of coal gasification slag, a new application of coal gasification slag was explored with high added value. First, the feasibility of coal gasification slag as rubber filler was investigated by the analysis of its physical and chemical properties, and then the coal gasification slag was processed by the ultra-fine grinding. Finally, the effect of powder size and dosage of coal gasification slag were systematically studied for its rubber reinforcing performance. The results show that the coal gasification slag consists of a large number of agglomerated micro beads and a small amount of porous residual carbon, which are very stable at the temperature lower than 500 ℃, and can be used as rubber filler. The stream-driven grinder could achieve the fine particle size at 5～15 μm. The dispersion of coal gasification slag powder in solutionpolymeriz styrene butadiene rubber decreases with the decreased the particle size, but its reinforcement performance first increases and then decreases. The best reinforcement effect is achieved by the particle size at 10 μm. The dispersion of 10 μm coal gasification slag powder decreases with the increase of filling amountin the range of 10～80 g, but the mechanical properties of vulcanizate first increase and then decrease. The best performance is achieved at the filling amount as 60 g. When the particle size and filling amountin of fine powder are equal, the reinforcing performance of coal gasification slag powder is better than that of light calcium carbonate.
Keywords: coal gasification slag； dispersity； vulcanization property； mechanical property； steam mill
中图分类号：TD985 文献标志码：A
收稿日期： 2021-11-11， 修回日期：2022-10-08，在线出版时间：2022-11-01。
基金项目： 国家自然科学基金项目， 编号： 21976113； 襄垣县固废综合利用科技攻关项目，编号：2018XYSDJS-06。
第一作者简介：周叶红（1970—），女，高级实验师，博士，研究方向为功能涂层材料、包覆技术的研究应用、固体废弃物资源化利用。E-mail: yhzhou@sxu.edu.cn。
通信作者简介：尚志新（1986—）， 男， 博士，硕士生导师，研究方向为高分子复合材料、粉体材料、固体废弃物资源化利用。E-mail：messi2008@126.com。
文章编号：1008-5548（2022）06-0114-10
DOI:10.13732/j.issn.1008-5548.2022.06.014
