成孔剂对烧结微孔砖性能的影响

Influence of pore-forming agents on the properties of fired perforated brick

选用酒糟壳、秸秆、陈化米和聚苯乙烯颗粒作为烧结微孔砖的成孔剂,研究了四种成孔剂的热解特性及其对烧结微孔制品物理性能的影响,研究了成孔剂形态对制品抗冻性能的影响。结果表明:四种成孔剂具有挥发分含量均较高,着火点低,易于燃烧和燃尽;秸秆掺量不超过5%时,试件各项性能较好;四种成孔剂抗冻性能优劣依次为:聚苯乙烯颗粒>陈化米>酒糟壳>秸秆。

The paper analyzes the influence of distiller＇s grains, straw, aging rice and polystyrene（PS）as pore-forming agents on the physical properties and frost resistance of fired perforated brick. The result shows that the four pore forming agents have higher volatile content and low ignition point, are easy to burn and burn out; When straw content is not more than 5%, the brick has better performance; The order of good frost resistance is polystyrene particles, aging rice, distiller＇s grains and straw.