外墙泡沫保温材料的技术现状及用砂岩质煤矸石试制

砂岩质煤矸石和抛光砖泥都是工业固体废弃物，在国家提倡外墙保温材料革新升级和煤矸石资源化利用的背景下，开发煤矸石基外墙泡沫保温材料，既可以实现建筑节能和外墙的安全防火，又可以改善矿区生态环境，减少对宝贵土地资源的占用。在介绍了我国外墙保温材料产业现状和国内关于煤矸石基外墙泡沫保温材料研究现状的基础上，重点分析了试验原料的增塑性和发泡性，并进行了煤矸石基外墙泡沫保温材料的试制。结果表明，以辽宁朝阳矸石山砂岩质煤矸石和辽宁法库某陶瓷厂的抛光砖泥为主要原料，碳化硅和氧化镁为复合造孔剂，硼砂为助熔剂，经陈化-成型-烧结工序，试制出了具有一定外观和性能的煤矸石基外墙泡沫保温材料，说明本试验技术路线是可行的。但要制备满足建筑业要求的、低成本的外墙泡沫保温材料，还需后续进行系统的原料配比和烧结制度优化试验。

Technical Status of Foam Insulation Material of External Wall and its Preparation with Sandstone Coal Gangue

Under the background of external wall thermal insulation materials innovation upgrading and coal gangue resource utilization，as industrial solid wastes，sandstone coal gangue and polishing tile waste are used to develop the external wall insulation foam material，which can achieve construction energy-efficient and fire safety，improve the ecological environment of mining area，and reduce the waste of valuable land resources.Based on the introduction of China's status of external wall insulation materials industry and research on coal gangue external wall foam insulation material，the plasticity and foaming of the tested material were analyzed，and the coal gangue exterior wall foam insulation material was prepared.The results show that，coal gangue exterior wall foam insulation material with a certain appearance and property can be produced through the aging，molding，and sintering process，with sandstone coal gangue in Chaoyang City and polished tile waste in Faku County as the main raw material，SiC and MgO as the composite pore forming agent，borax as the fluxing agent.To reduce the costs at an accept range and meet the construction industry requirements，optimization tests on raw material proportioning and sintering system are needed.Therefore，the test technical route is feasible