Heat insulating material composition, heat insulating ring and preparation method thereof and cooking appliance

The invention discloses a heat insulating material composition, a preparation method of a heat insulating ring, the heat insulating ring prepared by the preparation method of the heat insulating ring,and a cooking appliance using the heat insulating ring, wherein the heat insulating material composition is prepared from, by weight, 20%-50% of fumed silica, 5%-40% of silicate minerals and 5%-30% of cement. The heat insulation ring has the advantages of temperature insulation effects and better strength. 本发明公开种隔热材料组合物、种隔热圈的制备方法、由该隔热圈的制备方法制得的隔热圈、及应用该隔热圈的烹饪电器，其中，按重量百分比计，所述隔热材料组合物包括气相法二氧化硅，20％-50％；硅酸盐矿物质，5％-40％；水泥，5％-30％。本发明的技术方案的隔热圈具有隔温效果和强度较好的优点。