聚氨酯/煤气化细渣复合材料的孔隙结构及性能分析  

Pore Structure and Performance Analysis of Polyurethane/Coal Gasification Fine Slag Composites

作　　者：阮涛 李寒旭[1] 滕艳华[2] 张元春 RUAN Tao;LI Han-xu;TENG Yan-hua;ZHANG Yuan-chun(School of Chemical Engineering,Anhui University of Technology,Huainan 232001,China;School of Materials Science and Engineering,Anhui University of Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《塑料科技》2022年第7期26-31,共6页Plastics Science and Technology

摘　　要：为了实现煤气化细渣(CGFS)的高值化利用,细渣(AQ)经过研磨、改性(KH560)处理与聚氨酯泡沫(PUF)材料混合制备PUF/CGFS复合材料。研究CGFS添加量对PUF/CGFS复合材料表观形貌、密度、吸水率、热值、热稳定性及力学性能的影响。结果表明:随着CGFS添加量的增加,复合材料的密度呈上升趋势,热值呈下降趋势,复合材料的吸水率呈先下降后上升趋势。CGFS添加量达到9.28%时,复合材料的吸水率仅为2.58%。CGFS的加入不会影响复合材料的初始热解温度,但可以使最大热解速率大幅降低。CGFS的添加量为20.37%时,与空白样相比,复合材料的最大热解速率降幅可达20%。加入CGFS后,复合材料的压缩强度呈现先增大后减小再增大的趋势,并且弯曲强度明显下降。In order to realize the high-value utilization of coal gasification fine slag(CGFS), fine slag(AQ) was ground,modified(KH560) and mixed with polyurethane foam(PUF) to prepare PUF/CGFS composites. The effects of CGFS addition on the apparent morphology, density, water absorption, calorific value, thermal stability and mechanical properties of PUF/CGFS composites were studied. The results show that with the increasing of CGFS content, the density of the composites show an upward trend, the calorific value show a downward trend, and the water absorption of the composites show a downward and then upward trend. When the CGFS content reaches 9.28%, the water absorption of the composite is only 2.58%. The addition of CGFS does not affect the initial pyrolysis temperature of the composites, but can greatly reduce the maximum pyrolysis rate. When the CGFS content is 20.37%, the maximum pyrolysis rate of the composite is decreased by 20% compared with the blank sample. After adding CGFS, the compressive strength of the composites is increased first, then decreased and then increased, and the bending strength is decreased significantly.

关 键 词：煤气化细渣 聚氨酯泡沫 孔隙结构 吸水率 压缩强度 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ536.4[化学工程—煤化学工程]