基于生物质吸附效应的石膏基多功能化复合材料制备与性能

发布时间：2018-03-24 03:19

  本文选题：废弃核桃壳　切入点：多孔活性炭　出处：《复合材料学报》2017年03期

【摘要】：采用废弃核桃壳制备生物质多孔活性炭(PC),利用真空吸附法将癸酸(CA)封装于PC的孔结构中,形成癸酸-多孔活性炭(CA-PC)。然后将CA-PC与硅藻土(Di)、石膏(Gy)进行复合制备CA-PC/Di-Gy多功能化复合材料,并对其热性能、湿性能以及吸附性能进行测试。采用BET、FTIR、SEM以及DSC等技术对CA-PC/Di-Gy多功能化复合材料进行表征,并分析其结构。结果表明:以废弃核桃壳制备的PC具有发达的孔隙结构,不仅能够包裹CA,而且可以吸附甲醛。CA-PC/Di-Gy多功能化复合材料具有良好的调温调湿性能与吸附率,即在32℃附近出现温度平台,在相对湿度40%~60%的平衡含湿量为0.0859~0.2310g/g,经过4h对甲醛气体的吸附率接近40%。
[Abstract]:Waste walnut shell was used to prepare porous activated carbon (PCN) from biomass. The capric acid (CAA) was encapsulated in the pore structure of PC by vacuum adsorption. Sebacic acid-porous activated carbon (CA-PC) was formed. Then CA-PC was combined with diatomite Dianine (Gypsum) to prepare CA-PC/Di-Gy multifunctional composite and its thermal properties were studied. The wet properties and adsorption properties of CA-PC/Di-Gy multifunctional composites were characterized by beet FTIR SEM and DSC. The results showed that the PC prepared from abandoned walnut shell had developed pore structure. The multifunctional composite can not only wrap CA-CA-PC-PC-di-Gy composite, but also have good temperature and humidity regulation performance and adsorption rate, that is, the temperature platform appears near 32 鈩，

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